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[urhegyi]

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.....6..............273......5.....6..4...1..6.....9......537..............8..... ED=11.8/11.8/2.8

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.....6..............273......5.....6..4...1..6.....9......537..............8.....
.....6..............273......5.....6..4...1..6.....9......537..............8..... 2.8, Claiming: Cells R6C4,R8C2: 5 in windoku and diagonal(/): r9c1<>5, r2c8<>5, r1c9<>5, r3c7<>5
.....6..............273......5.....6..4...1..6.....9......537..............8..... 2.6, Pointing: Cells R8C2,R9C2: 5 in block and column: r1c2<>5
.....6..............273......5.....6..4...1..6.....9......537..............8..... 2.9, Generalized Intersection: Cells R2C2,R5C5,R8C8: 6 in antidiagonal(\): r2c8<>6, r8c2<>6
.....6..............273......5.....6..4...1..6.....9......537..............8..... 7.8, Nishio Forcing Chain (w/12 nodes): R1C8.5 on ==> R6C6.5 both on & off: r1c8<>5
.....6..............273......5.....6..4...1..6.....9......537..............8..... 7.9, Nishio Forcing Chain (w/14 nodes): R2C8.8 on ==> R1C1.8 both on & off: r2c8<>8
.....6..............273......5.....6..4...1..6.....9......537..............8..... 8.2, Nishio Forcing Chain (w/34 nodes): R8C2.8 on ==> R5C8.8 both on & off: r8c2<>8
.....6..............273......5.....6..4...1..6.....9......537..............8..... 8.9, Region Forcing Chains (w/16 nodes): 3 in block ==> R9C2.3 off: r9c2<>3
.....6..............273......5.....6..4...1..6.....9......537..............8..... 9.3, Contradiction Forcing Chain (w/52 nodes): R2C7.4 on ==> R2C3.6 both on & off: r2c7<>4
.....6..............273......5.....6..4...1..6.....9......537..............8..... 9.3, Region Forcing Chains (w/12 nodes): 9 in antidiagonal(\) ==> R9C1.9 off: r9c1<>9
.....6..............273......5.....6..4...1..6.....9......537..............8..... 9.4, Region Forcing Chains (w/16 nodes): 9 in column ==> R1C9.9 off: r1c9<>9
.....6..............273......5.....6..4...1..6.....9......537..............8..... 9.5, Region Forcing Chains (w/22 nodes): 1 in block ==> R7C2.1 off: r7c2<>1
.....6..............273......5.....6..4...1..6.....9......537..............8..... 9.5, Region Forcing Chains (w/22 nodes): 4 in block ==> R3C8.4 off: r3c8<>4
.....6..............273......5.....6..4...1..6.....9......537..............8..... 10.1, Contradiction Forcing Chain (w/167 nodes): R8C1.1 on ==> R2C8.9 both on & off: r8c1<>1
.....6..............273......5.....6..4...1..6.....9......537..............8..... 10.2, Contradiction Forcing Chain (w/44 nodes): R8C1.8 on ==> R1C9.8 both on & off: r8c1<>8
.....6..............273......5.....6..4...1..6.....9......537..............8..... 10.3, Contradiction Forcing Chain (w/59 nodes): R6C2.8 on ==> R4C6.8 both on & off: r6c2<>8
.....6..............273......5.....6..4...1..6.....9......537..............8..... 10.1, Contradiction Forcing Chain (w/145 nodes): R7C2.9 on ==> R2C7.5 both on & off: r7c2<>9
.....6..............273......5.....6..4...1..6.....9......537..............8..... 10.9, Region Forcing Chains (w/68 nodes): 9 in windoku ==> R4C6.9 off: r4c6<>9
.....6..............273......5.....6..4...1..6.....9......537..............8..... 10.7, Contradiction Forcing Chain (w/239 nodes): R8C3.1 on ==> R6C4.5 both on & off: r8c3<>1
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.2, Contradiction Forcing Chain (w/206 nodes): R8C2.9 on ==> R7C3.1 both on & off: r8c2<>9
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.2, Contradiction Forcing Chain (w/206 nodes): R8C2.1 on ==> R5C2.2 both on & off: r8c2<>1
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.3, Contradiction Forcing Chain (w/296 nodes): R3C8.8 on ==> R4C6.2 both on & off: r3c8<>8
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.3, Contradiction Forcing Chain (w/357 nodes): R2C9.4 on ==> R5C5.8 both on & off: r2c9<>4
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.3, Contradiction Forcing Chain (w/369 nodes): R2C7.8 on ==> R4C4.1 both on & off: r2c7<>8
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.4, Contradiction Forcing Chain (w/386 nodes): R4C8.8 on ==> R1C4.2 both on & off: r4c8<>8
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.4, Contradiction Forcing Chain (w/498 nodes): R2C9.8 on ==> R4C4.1 both on & off: r2c9<>8
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.5, Contradiction Forcing Chain (w/560 nodes): R8C2.4 on ==> R5C1.2 both on & off: r8c2<>4
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.4, Contradiction Forcing Chain (w/397 nodes): R8C1.9 on ==> R9C7.5 both on & off: r8c1<>9
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.4, Contradiction Forcing Chain (w/474 nodes): R1C9.3 on ==> R6C8.4 both on & off: r1c9<>3
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.5, Contradiction Forcing Chain (w/741 nodes): R9C5.2 on ==> R6C4.3 both on & off: r9c5<>2
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.3, Contradiction Forcing Chain (w/354 nodes): R8C2.2 on ==> R2C2.4 both on & off: r8c2<>2
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.5, Contradiction Forcing Chain (w/628 nodes): R2C7.2 on ==> R8C5.4 both on & off: r2c7<>2
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.3, Contradiction Forcing Chain (w/299 nodes): R9C5.4 on ==> R5C4.2 both on & off: r9c5<>4
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.7, Cell Forcing Chains (w/231 nodes): R3C7 ==> R2C8.4 off: r2c8<>4
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.8, Contradiction Forcing Chain (w/320 nodes): R2C8.9 on ==> R1C1.4 both on & off: r2c8<>9
.....6..............273......5.....6..4...1..6.....9......537..............8..... 10.7, Contradiction Forcing Chain (w/210 nodes): R7C3.1 on ==> R8C5.7 both on & off: r7c3<>1
.....6..............273......5.....6..4...1..6.....9......537..............8..... 10.8, Contradiction Forcing Chain (w/287 nodes): R3C1.8 on ==> R4C6.7 both on & off: r3c1<>8
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.3, Contradiction Forcing Chain (w/339 nodes): R8C2.7 on ==> R6C9.3 both on & off: r8c2<>7
.....6..............273......5.....6..4...1..6.....9......537..............8..... 10.6, Contradiction Forcing Chain (w/165 nodes): R8C8.5 on ==> R1C9.7 both on & off: r8c8<>5
.....6..............273......5.....6..4...1..6.....9......537..............8..... 11.2, Contradiction Forcing Chain (w/196 nodes): R5C8.5 on ==> R3C1.4 both on & off: r5c8<>5
.....6..............273......5.....6..4...1..6.....9......537..............8..... 7.7, Nishio Forcing Chain (w/7 nodes): R8C7.5 on ==> R5C6.5 both on & off: r8c7<>5
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 1.5, Hidden Single: R8C2: 5 in row 8: r8c2=5
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 8.0, Nishio Forcing Chain (w/18 nodes): R9C8.3 on ==> R1C1.3 both on & off: r9c8<>3
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 10.6, Contradiction Forcing Chain (w/147 nodes): R5C4.2 on ==> R1C3.7 both on & off: r5c4<>2
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 10.6, Contradiction Forcing Chain (w/173 nodes): R1C4.9 on ==> R4C4.4 both on & off: r1c4<>9
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 10.6, Contradiction Forcing Chain (w/156 nodes): R5C6.9 on ==> R9C2.2 both on & off: r5c6<>9
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 10.6, Contradiction Forcing Chain (w/179 nodes): R2C2.9 on ==> R8C8.8 both on & off: r2c2<>9
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 10.5, Contradiction Forcing Chain (w/114 nodes): R1C5.9 on ==> R2C6.5 both on & off: r1c5<>9
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 10.7, Contradiction Forcing Chain (w/209 nodes): R8C3.9 on ==> R9C1.1 both on & off: r8c3<>9
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 10.7, Contradiction Forcing Chain (w/210 nodes): R6C2.2 on ==> R7C8.6 both on & off: r6c2<>2
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 10.0, Contradiction Forcing Chain (w/114 nodes): R8C9.1 on ==> R6C5.4 both on & off: r8c9<>1
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 10.0, Contradiction Forcing Chain (w/128 nodes): R2C5.1 on ==> R4C8.7 both on & off: r2c5<>1
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.4, Contradiction Forcing Chain (w/79 nodes): R9C9.1 on ==> R2C7.3 both on & off: r9c9<>1
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 10.0, Contradiction Forcing Chain (w/101 nodes): R4C5.1 on ==> R8C3.8 both on & off: r4c5<>1
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.9, Contradiction Forcing Chain (w/76 nodes): R3C8.1 on ==> R5C4.6 both on & off: r3c8<>1
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 10.0, Contradiction Forcing Chain (w/117 nodes): R5C6.2 on ==> R9C5.6 both on & off: r5c6<>2
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 10.0, Contradiction Forcing Chain (w/119 nodes): R6C5.4 on ==> R6C4.1 both on & off: r6c5<>4
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 10.0, Contradiction Forcing Chain (w/109 nodes): R1C4.1 on ==> R6C9.4 both on & off: r1c4<>1
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.2, Contradiction Forcing Chain (w/48 nodes): R2C9.5 on ==> R3C8.6 both on & off: r2c9<>5
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.6, Cell Forcing Chains (w/29 nodes): R2C4 ==> R1C1.5 off: r1c1<>5
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 2.6, Pointing: Cells R2C1,R3C1: 5 in block and windoku: r3c9<>5
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.9, Contradiction Forcing Chain (w/84 nodes): R6C6.1 on ==> R4C8.4 both on & off: r6c6<>1
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.7, Region Forcing Chains (w/35 nodes): 8 in diagonal(/) ==> R5C9.8 off: r5c9<>8
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.9, Contradiction Forcing Chain (w/83 nodes): R6C5.8 on ==> R8C4.9 both on & off: r6c5<>8
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.9, Contradiction Forcing Chain (w/79 nodes): R7C9.1 on ==> R3C6.9 both on & off: r7c9<>1
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 2.6, Pointing: Cells R7C8,R8C8: 1 in block and column: r2c8<>1
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 2.6, Pointing: Cells R7C8,R8C8: 1 in block and windoku: r8c6<>1
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 7.8, Nishio Forcing Chain (w/11 nodes): R1C5.1 on ==> R9C3.1 both on & off: r1c5<>1
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.7, Contradiction Forcing Chain (w/40 nodes): R6C8.2 on ==> R2C8.3 both on & off: r6c8<>2
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 2.9, Generalized Intersection: Cells R7C8,R8C6,R8C7: 2 in windoku: r8c9<>2
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.2, Contradiction Forcing Chain (w/48 nodes): R8C1.2 on ==> R9C7.5 both on & off: r8c1<>2
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.3, Contradiction Forcing Chain (w/62 nodes): R8C5.2 on ==> R8C9.3 both on & off: r8c5<>2
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.8, Contradiction Forcing Chain (w/51 nodes): R2C3.3 on ==> R6C9.7 both on & off: r2c3<>3
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 7.7, Nishio Forcing Chain (w/8 nodes): R5C2.3 on ==> R1C1.3 both on & off: r5c2<>3
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.5, Contradiction Forcing Chain (w/105 nodes): R9C9.3 on ==> R6C8.8 both on & off: r9c9<>3
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.3, Contradiction Forcing Chain (w/60 nodes): R9C5.9 on ==> R2C3.6 both on & off: r9c5<>9
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.7, Contradiction Forcing Chain (w/41 nodes): R4C6.2 on ==> R9C6.9 both on & off: r4c6<>2
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.2, Contradiction Forcing Chain (w/44 nodes): R8C4.2 on ==> R7C1.4 both on & off: r8c4<>2
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 2.8, Claiming: Cells R8C6,R8C7: 2 in row and windoku: r7c8<>2
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.5, Contradiction Forcing Chain (w/99 nodes): R9C1.2 on ==> R4C7.8 both on & off: r9c1<>2
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.2, Contradiction Forcing Chain (w/41 nodes): R4C5.2 on ==> R1C1.9 both on & off: r4c5<>2
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 2.6, Pointing: Cells R6C4,R6C5: 2 in block and row: r6c9<>2
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.6, Cell Forcing Chains (w/29 nodes): R5C2 ==> R3C6.5 off: r3c6<>5
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.3, Contradiction Forcing Chain (w/61 nodes): R3C1.1 on ==> R7C3.9 both on & off: r3c1<>1
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.6, Double Forcing Chain (w/25 nodes): R3C1.5 on & off ==> R3C1.4 off: r3c1<>4
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.5, Contradiction Forcing Chain (w/112 nodes): R2C3.9 on ==> R5C6.7 both on & off: r2c3<>9
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 2.9, Generalized Intersection: Cells R1C3,R7C3,R9C3: 9 in column: r9c2<>9
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.7, Region Forcing Chains (w/34 nodes): 3 in block ==> R4C4.1 off: r4c4<>1
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.5, Contradiction Forcing Chain (w/113 nodes): R9C1.1 on ==> R2C5.4 both on & off: r9c1<>1
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.5, Contradiction Forcing Chain (w/105 nodes): R7C4.9 on ==> R1C7.8 both on & off: r7c4<>9
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.7, Cell Forcing Chains (w/33 nodes): R5C2 ==> R6C4.3 off: r6c4<>3
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 7.8, Nishio Forcing Chain (w/10 nodes): R9C3.3 on ==> R1C1.3 both on & off: r9c3<>3
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.1, Region Forcing Chains (w/28 nodes): 9 in block ==> R4C4.4 off: r4c4<>4
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 2.9, Generalized Intersection: Cells R2C2,R2C4,R3C2: 4 in windoku: r2c1<>4
.....6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.1, Contradiction Forcing Chain (w/28 nodes): R1C4.2 on ==> R8C9.9 both on & off: r1c4<>2
...5.6..............273......5.....6..4...1..6.....9......537...5..........8..... 2.3, Naked Single: R1C4: 5: r1c4=5
...5.6..............273......5.....6..4...1..6.....9......537...5..........8..... 2.8, Claiming: Cells R6C4,R7C4: 2 in column and windoku: r7c2<>2
...5.6..............273......5.....6..4...1..6.....9......537...5..........8..... 7.7, Nishio Forcing Chain (w/7 nodes): R2C8.2 on ==> R6C5.2 both on & off: r2c8<>2
...5.6..............273......5.....6..4...1..6.....9......537...5..........8..... 7.8, Nishio Forcing Chain (w/9 nodes): R5C9.2 on ==> R7C4.2 both on & off: r5c9<>2
...5.6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.0, Region Forcing Chains (w/20 nodes): 3 in row ==> R2C7.6 off: r2c7<>6
...5.6..............273......5.....6..4...1..6.....9......537...5..........8..... 2.6, Pointing: Cells R3C7,R3C8: 6 in block and row: r3c2<>6
...5.6..............273......5.....6..4...1..6.....9......537...5..........8..... 6.6, Turbot Fish (w/4 nodes): R8C4.6 off: r8c4<>6
...5.6..............273......5.....6..4...1..6.....9......537...5..........8..... 6.6, Turbot Fish (w/4 nodes): R9C3.6 off: r9c3<>6
...5.6..............273......5.....6..4...1..6.....9......537...5..........8..... 8.2, Region Forcing Chains (w/8 nodes): 1 in column ==> R7C1.1 off: r7c1<>1
...5.6..............273......5.....6..4...1..6.....9......537...5..........8..... 2.6, Pointing: Cells R9C2,R9C3: 1 in block and row: r9c5<>1
...5.6..............273......5.....6..4...1..6.....9......537...5..........8..... 2.6, Pointing: Cells R9C2,R9C3: 1 in block and windoku: r1c2<>1, r1c3<>1
...5.6..............273......5.....6..4...1..6.....9......537...5..........8..... 8.9, Cell Forcing Chains (w/14 nodes): R2C4 ==> R1C1.3 off: r1c1<>3
...5.6..............273......5.....6..4...1..6.....9......537...5..........8..... 2.8, Claiming: Cells R2C2,R4C4: 3 in antidiagonal(\) and windoku: r4c2<>3
...5.6..............273......5.....6..4...1..6.....9......537...5..........8..... 9.0, Region Forcing Chains (w/17 nodes): 4 in column ==> R6C4.1 off: r6c4<>1
...5.6..............273......5.....6..4...1..6.....9......537...5..........8..... 7.6, Nishio Forcing Chain (w/6 nodes): R2C9.1 on ==> R3C6.1 both on & off: r2c9<>1
...5.6..............273......53....6..4...1..6.....9......537...5..........8..... 9.0, Region Forcing Chains (w/18 nodes): 6 in column ==> R4C4.3 on: r4c4<>9, r4c4=3
...5.6..............273......53....6..4...1..6.....9......537...5..........8..... 2.6, Pointing: Cells R1C2,R1C3: 3 in block and row: r1c8<>3, r1c7<>3
...5.6..............273......53....6..4...1..6.....9......537...5..........8..... 2.8, Claiming: Cells R1C1,R5C5,R9C9: 9 in antidiagonal(\) and windoku: r5c1<>9
...5.6..............273......53....6..4...1..6.....9......537...5..........8..... 3.4, Hidden Pair: Cells R2C7,R9C7: 3,5 in column: r9c7<>2,4
...5.6..............273......53....6..4...1..6.....9......537...5..........8..... 7.7, Nishio Forcing Chain (w/7 nodes): R1C2.9 on ==> R7C3.9 both on & off: r1c2<>9
...5.6..............273......53....6..4...1..6.....9......537...5..........8..... 8.0, Nishio Forcing Chain (w/22 nodes): R8C5.4 on ==> R6C6.4 both on & off: r8c5<>4
...5.6..............273......53....6..4...1..6.....9......537...5..........8..... 8.8, Cell Forcing Chains (w/11 nodes): R1C3 ==> R9C2.7 off: r9c2<>7
...5.6..............273......53....6..4...1..6.....9......537...5..........8..... 8.8, Contradiction Forcing Chain (w/11 nodes): R2C5.9 on ==> R5C5.6 both on & off: r2c5<>9
...5.6..............273......53....6..4...1..6.....9......537...5..........8..... 8.9, Cell Forcing Chains (w/13 nodes): R1C3 ==> R9C3.7 off: r9c3<>7
...5.6..............273......53....6..4...1..6.....9......537...5..........8..... 8.9, Region Forcing Chains (w/13 nodes): 7 in row ==> R5C9.7 off: r5c9<>7
...5.6..............273......53....6..4...1..6.....9......537...5..........8..... 8.9, Region Forcing Chains (w/14 nodes): 7 in windoku ==> R1C8.7 off: r1c8<>7
...5.6..............273......53....6..4...1..6.....9......537...5..........8..... 8.9, Contradiction Forcing Chain (w/16 nodes): R4C6.7 on ==> R9C2.2 both on & off: r4c6<>7
...5.6..............273......53....6..4...1..6.....9......537...5..........8..... 2.8, Claiming: Cells R5C6,R9C6: 7 in column and windoku: r5c8<>7
...5.6..............273......53....6..4...1..6.....9......537...5..........8..... 7.8, Nishio Forcing Chain (w/12 nodes): R8C1.7 on ==> R1C9.7 both on & off: r8c1<>7
...5.6..............273......53....6..4...1..6.....9......537...5..........8..... 8.3, Region Forcing Chains (w/12 nodes): 7 in diagonal(/) ==> R9C5.7 off: r9c5<>7
...5.6..............273......53....6..4...1..6.....9......537...5..........86.... 2.3, Naked Single: R9C5: 6: r9c5=6
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 1.2, Hidden Single: R5C4: 6 in block 5: r5c4=6
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 2.6, Pointing: Cells R4C5,R5C5: 9 in block and column: r8c5<>9
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 6.6, Turbot Fish (w/4 nodes): R9C9.9 off: r9c9<>9
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 7.1, Forcing Chain (w/6 nodes): R9C6.4 off: r9c6<>4
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 7.3, Forcing Chain (w/10 nodes): R7C8.4 off: r7c8<>4
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 7.3, Forcing Chain (w/12 nodes): R1C1.4 off: r1c1<>4
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 2.6, Pointing: Cells R2C2,R3C2: 4 in block and column: r7c2<>4
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 2.6, Pointing: Cells R2C2,R3C2: 4 in block and windoku: r2c4<>4
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 7.1, Forcing Chain (w/6 nodes): R2C3.1 off: r2c3<>1
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 7.1, Forcing Chain (w/6 nodes): R3C7.4 off: r3c7<>4
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 3.6, Naked Triplet: Cells R3C7,R5C5,R7C3: 6,8,9 in diagonal(/): r4c6<>8, r1c9<>8
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 7.1, Forcing Chain (w/6 nodes): R7C8.8 off: r7c8<>8
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 7.2, Forcing Chain (w/8 nodes): R9C6.2 off: r9c6<>2
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 7.3, Forcing Chain (w/10 nodes): R3C9.9 off: r3c9<>9
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 7.3, Forcing Chain (w/12 nodes): R1C1.8 off: r1c1<>8
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 7.3, Forcing Chain (w/12 nodes): R3C2.1 off: r3c2<>1
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 6.5, Generalized X-Wing (w/2 nodes): R3C9,R3C6,R4C6,R1C9: r2c6<>1
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 7.3, Forcing Chain (w/12 nodes): R3C9.4 off: r3c9<>4
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 2.6, Pointing: Cells R1C7,R1C8,R1C9: 4 in block and row: r1c5<>4
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 7.6, Nishio Forcing Chain (w/6 nodes): R4C1.7 on ==> R9C6.7 both on & off: r4c1<>7
...5.6..............273......53....6..46..1..6.....9......537...5..........86.... 7.8, Nishio Forcing Chain (w/11 nodes): R3C9.8 on ==> R7C3.8 both on & off: r3c9<>8
...5.6..............273...1..53....6..46..1..6.....9......537...5..........86.... 2.3, Naked Single: R3C9: 1: r3c9=1
...5.6......1.......273...1..53....6..46..1..6.....9......537...5..........86.... 1.2, Hidden Single: R2C4: 1 in block 2: r2c4=1
1..5.6......1.......273...1..53....6..46..1..6.....9......537...5..........86.... 1.2, Hidden Single: R1C1: 1 in block 1: r1c1=1
1..5.6......1.......273...1..53....6..46..1..6.....9......537...5..1.......86.... 1.2, Hidden Single: R8C5: 1 in block 8: r8c5=1
1..5.6......1.......273...1..53.1..6..46..1..6.....9......537...5..1.......86.... 1.2, Hidden Single: R4C6: 1 in block 5: r4c6=1
1..5.6......1.......273...1..53.1..6..46..1..6.....9......537...5..1.......867... 1.2, Hidden Single: R9C6: 7 in block 8: r9c6=7
1..5.6......1.......273...1..53.1..6..46..1..6.....9......537...57.1.......867... 1.2, Hidden Single: R8C3: 7 in block 7: r8c3=7
1..5.6......1.......273...1..53.1..6..46..1..6.....9......537...5791.......867... 1.2, Hidden Single: R8C4: 9 in block 8: r8c4=9
1..5.6......1.......273...1..53.1..6..46..1..6.....9......5371..5791.......867... 1.2, Hidden Single: R7C8: 1 in block 9: r7c8=1
1..5.6......1.......273...1..53.1..6..469.1..6.....9......5371..5791.......867... 1.5, Hidden Single: R5C5: 9 in diagonal (/): r5c5=9
1..5.6......1.......273...1..53.1..6..469.1..6.....9......5371..5791.......867... 2.6, Pointing: Cells R8C1,R9C1: 3 in block and column: r5c1<>3
1..5.6......1.......273...1..53.1..6..469.1..6.....9......5371..5791.......867... 2.6, Pointing: Cells R6C2,R6C3: 3 in block and row: r6c9<>3
1..5.6......1.......273...1..53.1..6..469.1..6.....9......5371..5791.......867... 2.6, Pointing: Cells R7C1,R7C2,R7C3: 8 in block and row: r7c9<>8
1..5.6......1.......273...1..53.1..6..469.1..6.....9......5371..5791.......867... 2.8, Claiming: Cells R1C9,R2C8: 7 in diagonal(/) and block: r2c9<>7
1..5.6......1.......273...1..53.1..6..469.1..6.....9......5371..5791.......867... 2.6, Pointing: Cells R2C6,R3C6: 9 in block and windoku: r3c8<>9
1..5.6......1.......273...1..53.1..6..469.1..6.....9......5371..5791.......867... 2.8, Claiming: Cells R6C9,R8C9: 8 in column and windoku: r7c1<>8
1..5.6......1.......273...1..53.1..6..469.1..6.....9......5371..5791.......867... 2.6, Pointing: Cells R7C2,R7C3: 8 in block and windoku: r6c3<>8
1..5.6......1.......273...1..53.1..6..469.1..6.....9......5371..5791.......867... 3.0, Naked Pair: Cells R8C1,R9C1: 3,4 in block: r7c1<>4
1..5.6......1.......273...1..53.1..6..469.1..6.....9......5371..5791.......867... 3.6, Naked Triplet: Cells R9C1,R9C7,R9C9: 3,4,5 in row: r9c8<>4,5
1..5.6......1.......273...1..53.1..6..469.1..6.....9......5371..5791.......867... 2.8, Claiming: Cells R9C1,R9C9: 4 in row and windoku: r1c9<>4
1..5.6......1.......273...1..53.1..6..469.1..6.....9......5371..5791.......867... 4.0, Hidden Triplet: Cells R2C1,R2C7,R2C8: 3,5,7 in row: r2c1<>8,9
1..5.6......1.......273...1..53.1..6..469.1..6.....9......5371..5791.......867... 2.8, Claiming: Cells R4C1,R5C1: 8 in column and block: r4c2<>8
1..5.6......1.......273...1.953.1..6..469.1..6.....9......5371..5791.......867... 2.3, Naked Single: R4C2: 9: r4c2=9
1..5.6......1.......273...1.953.1..6..469.1..6.....9......5371..5791.......867... 6.6, Turbot Fish (w/4 nodes): R6C4.4 off: r6c4<>4
1..5.6......1.......273...1.953.1..6..469.1..6.....9.....45371..5791.......867... 1.5, Hidden Single: R7C4: 4 in column 4: r7c4=4
1..5.6......1.......273...1.953.1..6..469.1..6.....9.....45371..57912......867... 1.0, Hidden Single: R8C6: 2 in block 8: r8c6=2
1..5.6......1.......273...1.953.1..6..469.1..6..2..9.....45371..57912......867... 1.0, Hidden Single: R6C4: 2 in column 4: r6c4=2
1..5.6......1.......273...1.953.1..6..469.1..6..2..9.....45371..57912...4..867... 1.5, Hidden Single: R9C1: 4 in diagonal (/): r9c1=4
1..5.6......1.......273...1.953.1..6..469.1..6..2..9.....45371.357912...4..867... 1.2, Hidden Single: R8C1: 3 in block 7: r8c1=3
1..5.6......1.......273...1.953.1..6..469.1..6..2..9.....45371.357912...4..8673.. 1.2, Hidden Single: R9C7: 3 in block 9: r9c7=3
1..5.6......1...3...273...1.953.1..6..469.1..6..2..9.....45371.357912...4..8673.. 1.2, Hidden Single: R2C8: 3 in block 3: r2c8=3
1..5.6..7...1...3...273...1.953.1..6..469.1..6..2..9.....45371.357912...4..8673.. 1.2, Hidden Single: R1C9: 7 in block 3: r1c9=7
1..5.6..77..1...3...273...1.953.1..6..469.1..6..2..9.....45371.357912...4..8673.. 1.2, Hidden Single: R2C1: 7 in block 1: r2c1=7
1..5.6..77..1...3.5.273...1.953.1..6..469.1..6..2..9.....45371.357912...4..8673.. 1.2, Hidden Single: R3C1: 5 in block 1: r3c1=5
1.95.6..77..1...3.5.273...1.953.1..6..469.1..6..2..9.....45371.357912...4..8673.. 1.2, Hidden Single: R1C3: 9 in block 1: r1c3=9
1395.6..77..1...3.5.273...1.953.1..6..469.1..6..2..9.....45371.357912...4..8673.. 1.2, Hidden Single: R1C2: 3 in block 1: r1c2=3
1395.6..77..1..53.5.273...1.953.1..6..469.1..6..2..9.....45371.357912...4..8673.. 1.2, Hidden Single: R2C7: 5 in block 3: r2c7=5
1395.6..77..1..5395.273...1.953.1..6..469.1..6..2..9.....45371.357912...4..8673.. 1.2, Hidden Single: R2C9: 9 in block 3: r2c9=9
1395.6..77..1..5395.2739..1.953.1..6..469.1..6..2..9.....45371.357912...4..8673.. 1.2, Hidden Single: R3C6: 9 in block 2: r3c6=9
1395.6..77..1..5395.2739..1.953.1..6..469.1..6.32..9.....45371.357912...4..8673.. 1.2, Hidden Single: R6C3: 3 in block 4: r6c3=3
1395.6..77..1..5395.2739..1.953.1..6..469.1..6132..9.....45371.357912...4..8673.. 1.2, Hidden Single: R6C2: 1 in block 4: r6c2=1
1395.6..77..1..5395.2739..1.953.1..6.7469.1..6132..9.....45371.357912...4..8673.. 1.2, Hidden Single: R5C2: 7 in block 4: r5c2=7
1395.6..77..1..5395.2739..1.953.1..6.7469.1..61327.9.....45371.357912...4..8673.. 1.2, Hidden Single: R6C5: 7 in block 5: r6c5=7
1395.6..77..1..5395.2739..1.953.1..6.7469.1.361327.9.....45371.357912...4..8673.. 1.2, Hidden Single: R5C9: 3 in block 6: r5c9=3
1395.6..77..1..5395.2739..1.953.1..6.7469.1.361327.95....45371.357912...4..8673.. 1.2, Hidden Single: R6C8: 5 in block 6: r6c8=5
1395.6..77..1..5395.2739..1.953.1..6.746951.361327.95....45371.357912...4..8673.. 1.2, Hidden Single: R5C6: 5 in block 5: r5c6=5
1395.6..77..1..5395.2739..1.953.1.76.746951.361327.95....45371.357912...4..8673.. 1.2, Hidden Single: R4C8: 7 in block 6: r4c8=7
1395.6..77..1..5395.2739..1.953.1.76.746951.361327.95....45371.357912...4.18673.. 1.2, Hidden Single: R9C3: 1 in block 7: r9c3=1
1395.6..77..1..5395.2739..1.953.1.76.746951.361327.95.9..45371.357912...4.18673.. 1.2, Hidden Single: R7C1: 9 in block 7: r7c1=9
1395.6..77..1..5395.2739..1.953.1.76.746951.361327.95.9..45371.357912...4218673.. 1.2, Hidden Single: R9C2: 2 in block 7: r9c2=2
1395.6..77..1..5395.2739..1.953.1.76.746951.361327.95.9..453712357912...4218673.. 1.2, Hidden Single: R7C9: 2 in block 9: r7c9=2
1395.6..77..1..5395.2739..1.953.1.76.746951.361327.95.9..453712357912...4218673.5 1.2, Hidden Single: R9C9: 5 in block 9: r9c9=5
1395.6..77..1..5395.2739..1.953.1.76.746951.361327.95.9..453712357912...421867395 1.0, Hidden Single: R9C8: 9 in row 9: r9c8=9
1395.6..77..12.5395.2739..1.953.1.76.746951.361327.95.9..453712357912...421867395 1.5, Hidden Single: R2C5: 2 in row 2: r2c5=2
1395.6..77..1245395.2739..1.953.1.76.746951.361327.95.9..453712357912...421867395 1.2, Hidden Single: R2C6: 4 in block 2: r2c6=4
139586..77..1245395.2739..1.953.1.76.746951.361327.95.9..453712357912...421867395 1.0, Hidden Single: R1C5: 8 in block 2: r1c5=8
139586..77..1245395.2739..1.95341.76.746951.361327.95.9..453712357912...421867395 1.0, Hidden Single: R4C5: 4 in column 5: r4c5=4
139586..77..1245395.2739..1.95341.76.746951.361327895.9..453712357912...421867395 1.0, Hidden Single: R6C6: 8 in block 5: r6c6=8
139586..77..1245395.2739..1.95341.76.746951.36132789549..453712357912...421867395 1.0, Hidden Single: R6C9: 4 in row 6: r6c9=4
139586..77..1245395.2739..1.95341.76.746951.36132789549..453712357912..8421867395 1.0, Hidden Single: R8C9: 8 in column 9: r8c9=8
139586..77..124539542739..1.95341.76.746951.36132789549..453712357912..8421867395 1.2, Hidden Single: R3C2: 4 in block 1: r3c2=4
139586..77.8124539542739..1.95341.76.746951.36132789549..453712357912..8421867395 1.2, Hidden Single: R2C3: 8 in block 1: r2c3=8
139586..7768124539542739..1.95341.76.746951.36132789549..453712357912..8421867395 1.0, Hidden Single: R2C2: 6 in block 1: r2c2=6
139586..7768124539542739..1.95341.76.746951.361327895498.453712357912..8421867395 1.0, Hidden Single: R7C2: 8 in column 2: r7c2=8
139586..7768124539542739..1.95341.76.746951.3613278954986453712357912..8421867395 1.0, Hidden Single: R7C3: 6 in block 7: r7c3=6
139586..7768124539542739.61.95341.76.746951.3613278954986453712357912..8421867395 1.2, Hidden Single: R3C8: 6 in block 3: r3c8=6
139586..7768124539542739861.95341.76.746951.3613278954986453712357912..8421867395 1.0, Hidden Single: R3C7: 8 in row 3: r3c7=8
139586..7768124539542739861.95341.762746951.3613278954986453712357912..8421867395 1.2, Hidden Single: R5C1: 2 in block 4: r5c1=2
139586..7768124539542739861895341.762746951.3613278954986453712357912..8421867395 1.0, Hidden Single: R4C1: 8 in block 4: r4c1=8
139586..77681245395427398618953412762746951.3613278954986453712357912..8421867395 1.0, Hidden Single: R4C7: 2 in row 4: r4c7=2
139586..7768124539542739861895341276274695183613278954986453712357912..8421867395 1.0, Hidden Single: R5C8: 8 in block 6: r5c8=8
139586.27768124539542739861895341276274695183613278954986453712357912..8421867395 1.2, Hidden Single: R1C8: 2 in block 3: r1c8=2
139586427768124539542739861895341276274695183613278954986453712357912..8421867395 1.0, Hidden Single: R1C7: 4 in block 3: r1c7=4
1395864277681245395427398618953412762746951836132789549864537123579126.8421867395 1.0, Hidden Single: R8C7: 6 in column 7: r8c7=6
139586427768124539542739861895341276274695183613278954986453712357912648421867395 1.0, Hidden Single: R8C8: 4 in block 9: r8c8=4
ED=11.8/11.8/2.8


[urhegyi]

Code: Select all

.....5..............273......1.....6..4...1..6.....9......527..............8..... ED=11.9/11.9/2.9

Solution:

Hidden Text: Show

Code: Select all

.....5..............273......1.....6..4...1..6.....9......527..............8.....
.....5..............273......1.....6..4...1..6.....9......527..............8..... 2.9, Generalized Intersection: Cells R2C2,R5C5,R8C8: 6 in antidiagonal(\): r2c8<>6, r8c2<>6
.....5..............273......1.....6..4...1..6.....9......527..............8..... 7.8, Nishio Forcing Chain (w/11 nodes): R8C2.5 on ==> R2C7.5 both on & off: r8c2<>5
.....5..............273......1.....6..4...1..6.....9......527..............8..... 7.9, Nishio Forcing Chain (w/14 nodes): R2C8.8 on ==> R1C1.8 both on & off: r2c8<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 8.2, Nishio Forcing Chain (w/34 nodes): R8C2.8 on ==> R5C8.8 both on & off: r8c2<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 8.9, Region Forcing Chains (w/16 nodes): 1 in block ==> R8C1.1 off: r8c1<>1
.....5..............273......1.....6..4...1..6.....9......527..............8..... 9.3, Region Forcing Chains (w/12 nodes): 9 in antidiagonal(\) ==> R9C1.9 off: r9c1<>9
.....5..............273......1.....6..4...1..6.....9......527..............8..... 9.3, Contradiction Forcing Chain (w/12 nodes): R5C2.5 on ==> R9C9.5 both on & off: r5c2<>5
.....5..............273......1.....6..4...1..6.....9......527..............8..... 9.4, Region Forcing Chains (w/16 nodes): 9 in column ==> R1C9.9 off: r1c9<>9
.....5..............273......1.....6..4...1..6.....9......527..............8..... 9.5, Region Forcing Chains (w/22 nodes): 3 in block ==> R8C3.3 off: r8c3<>3
.....5..............273......1.....6..4...1..6.....9......527..............8..... 9.5, Region Forcing Chains (w/22 nodes): 4 in block ==> R3C8.4 off: r3c8<>4
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.0, Double Forcing Chain (w/18 nodes): R2C4.6 on & off ==> R1C2.6 off: r1c2<>6
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.0, Double Forcing Chain (w/18 nodes): R8C6.6 on & off ==> R9C8.6 off: r9c8<>6
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.2, Contradiction Forcing Chain (w/44 nodes): R8C1.8 on ==> R1C9.8 both on & off: r8c1<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.3, Contradiction Forcing Chain (w/59 nodes): R6C2.8 on ==> R4C6.8 both on & off: r6c2<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.8, Contradiction Forcing Chain (w/60 nodes): R4C6.9 on ==> R8C5.9 both on & off: r4c6<>9
.....5..............273......1.....6..4...1..6.....9......527..............8..... 11.3, Contradiction Forcing Chain (w/264 nodes): R2C9.4 on ==> R1C1.8 both on & off: r2c9<>4
.....5..............273......1.....6..4...1..6.....9......527..............8..... 11.3, Contradiction Forcing Chain (w/303 nodes): R3C8.8 on ==> R4C5.9 both on & off: r3c8<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 11.5, Contradiction Forcing Chain (w/530 nodes): R2C8.4 on ==> R3C7.8 both on & off: r2c8<>4
.....5..............273......1.....6..4...1..6.....9......527..............8..... 11.8, Contradiction Forcing Chain (w/343 nodes): R8C2.9 on ==> R9C9.5 both on & off: r8c2<>9
.....5..............273......1.....6..4...1..6.....9......527..............8..... 11.4, Contradiction Forcing Chain (w/415 nodes): R2C9.8 on ==> R1C3.3 both on & off: r2c9<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 11.9, Contradiction Forcing Chain (w/420 nodes): R9C2.3 on ==> R4C7.2 both on & off: r9c2<>3
.....5..............273......1.....6..4...1..6.....9......527..............8..... 11.9, Contradiction Forcing Chain (w/428 nodes): R2C7.4 on ==> R9C1.7 both on & off: r2c7<>4
.....5..............273......1.....6..4...1..6.....9......527..............8..... 11.6, Contradiction Forcing Chain (w/820 nodes): R4C8.8 on ==> R8C4.9 both on & off: r4c8<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 11.9, Contradiction Forcing Chain (w/450 nodes): R2C8.9 on ==> R8C1.2 both on & off: r2c8<>9
.....5..............273......1.....6..4...1..6.....9......527..............8..... 11.1, Contradiction Forcing Chain (w/141 nodes): R7C3.3 on ==> R5C6.6 both on & off: r7c3<>3
.....5..............273......1.....6..4...1..6.....9......527..............8..... 11.3, Contradiction Forcing Chain (w/284 nodes): R8C2.3 on ==> R7C9.3 both on & off: r8c2<>3
.....5..............273......1.....6..4...1..6.....9......527..............8..... 11.4, Contradiction Forcing Chain (w/462 nodes): R2C7.8 on ==> R7C9.1 both on & off: r2c7<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 11.4, Contradiction Forcing Chain (w/396 nodes): R3C1.8 on ==> R5C2.3 both on & off: r3c1<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 11.4, Contradiction Forcing Chain (w/476 nodes): R8C2.1 on ==> R9C1.3 both on & off: r8c2<>1
.....5..............273......1.....6..4...1..6.....9......527..............8..... 11.3, Contradiction Forcing Chain (w/297 nodes): R1C7.2 on ==> R6C6.4 both on & off: r1c7<>2
.....5..............273......1.....6..4...1..6.....9......527..............8..... 11.5, Contradiction Forcing Chain (w/529 nodes): R6C8.5 on ==> R9C2.1 both on & off: r6c8<>5
.....5..............273......1.....6..4...1..6.....9......527..............8..... 2.8, Claiming: Cells R6C2,R6C3,R6C4: 5 in row and windoku: r8c3<>5
.....5..............273......1.....6..4...1..6.....9......527..............8..... 2.6, Pointing: Cells R9C1,R9C2,R9C3: 5 in block and row: r9c9<>5
.....5..............273......1.....6..4...1..6.....9......527..............8..... 7.8, Nishio Forcing Chain (w/9 nodes): R3C7.5 on ==> R4C4.5 both on & off: r3c7<>5
.....5..............273......1.....6..4...1..6.....9......527..............8..... 7.8, Nishio Forcing Chain (w/12 nodes): R2C1.5 on ==> R8C8.5 both on & off: r2c1<>5
.....5..............273......1.....6..4...1..6.....9......527..............8..... 9.9, Contradiction Forcing Chain (w/84 nodes): R5C9.8 on ==> R1C8.6 both on & off: r5c9<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.6, Contradiction Forcing Chain (w/141 nodes): R4C2.5 on ==> R9C9.3 both on & off: r4c2<>5
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.7, Contradiction Forcing Chain (w/212 nodes): R6C5.8 on ==> R5C6.7 both on & off: r6c5<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.0, Contradiction Forcing Chain (w/127 nodes): R3C9.8 on ==> R5C6.7 both on & off: r3c9<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 8.1, Nishio Forcing Chain (w/26 nodes): R4C6.8 on ==> R7C1.8 both on & off: r4c6<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.7, Contradiction Forcing Chain (w/200 nodes): R3C7.4 on ==> R1C1.1 both on & off: r3c7<>4
.....5..............273......1.....6..4...1..6.....9......527..............8..... 3.6, Naked Triplet: Cells R3C7,R5C5,R7C3: 6,8,9 in diagonal(/): r1c9<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 2.8, Claiming: Cells R6C9,R7C9,R8C9: 8 in column and windoku: r7c1<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 2.6, Pointing: Cells R7C2,R7C3,R8C3: 8 in block and windoku: r6c3<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 9.8, Contradiction Forcing Chain (w/58 nodes): R8C7.8 on ==> R4C6.3 both on & off: r8c7<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.5, Contradiction Forcing Chain (w/123 nodes): R4C1.7 on ==> R4C5.2 both on & off: r4c1<>7
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.7, Contradiction Forcing Chain (w/197 nodes): R7C2.9 on ==> R9C1.1 both on & off: r7c2<>9
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.7, Contradiction Forcing Chain (w/238 nodes): R4C5.8 on ==> R8C6.3 both on & off: r4c5<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.0, Contradiction Forcing Chain (w/122 nodes): R2C3.9 on ==> R8C2.7 both on & off: r2c3<>9
.....5..............273......1.....6..4...1..6.....9......527..............8..... 2.9, Generalized Intersection: Cells R1C3,R7C3,R8C3,R9C3: 9 in column: r9c2<>9
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.1, Contradiction Forcing Chain (w/136 nodes): R8C8.8 on ==> R9C1.3 both on & off: r8c8<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.5, Contradiction Forcing Chain (w/121 nodes): R8C3.9 on ==> R5C4.2 both on & off: r8c3<>9
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.0, Contradiction Forcing Chain (w/120 nodes): R7C3.8 on ==> R4C5.7 both on & off: r7c3<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 7.6, Nishio Forcing Chain (w/6 nodes): R1C8.8 on ==> R6C6.8 both on & off: r1c8<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 2.6, Pointing: Cells R1C7,R3C7: 8 in block and column: r4c7<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 2.8, Claiming: Cells R4C1,R4C2: 8 in row and block: r5c1<>8
.....5..............273......1.....6..4...1..6.....9......527..............8..... 9.8, Contradiction Forcing Chain (w/59 nodes): R8C3.6 on ==> R8C1.7 both on & off: r8c3<>6
.....5..............273......1.....6..4...1..6.....9......527..............8..... 9.9, Contradiction Forcing Chain (w/91 nodes): R3C8.5 on ==> R9C5.9 both on & off: r3c8<>5
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.5, Contradiction Forcing Chain (w/125 nodes): R2C7.6 on ==> R9C6.4 both on & off: r2c7<>6
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.0, Contradiction Forcing Chain (w/97 nodes): R2C8.2 on ==> R3C8.9 both on & off: r2c8<>2
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.1, Contradiction Forcing Chain (w/143 nodes): R2C6.4 on ==> R4C4.3 both on & off: r2c6<>4
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.1, Contradiction Forcing Chain (w/160 nodes): R8C8.4 on ==> R2C1.7 both on & off: r8c8<>4
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.4, Contradiction Forcing Chain (w/88 nodes): R5C2.2 on ==> R2C1.1 both on & off: r5c2<>2
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.0, Contradiction Forcing Chain (w/107 nodes): R5C6.9 on ==> R2C7.2 both on & off: r5c6<>9
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.0, Contradiction Forcing Chain (w/116 nodes): R7C2.3 on ==> R2C2.5 both on & off: r7c2<>3
.....5..............273......1.....6..4...1..6.....9......527..............8..... 10.5, Contradiction Forcing Chain (w/120 nodes): R6C9.7 on ==> R4C7.4 both on & off: r6c9<>7
.....5..............273......1.....6..4...1..6.....9......527..............8..... 9.9, Contradiction Forcing Chain (w/86 nodes): R8C1.9 on ==> R7C2.1 both on & off: r8c1<>9
.....5..............273......1.....6..4...1..6.....9......527..............8..... 9.9, Contradiction Forcing Chain (w/92 nodes): R6C5.4 on ==> R8C4.9 both on & off: r6c5<>4
.....5..............273......1.....6..4...1..6.....9......527..............8..... 9.9, Contradiction Forcing Chain (w/94 nodes): R1C3.9 on ==> R2C6.9 both on & off: r1c3<>9
.....5..............273......1.....6..4...1..6.....9......527..............8..... 2.8, Claiming: Cells R7C3,R9C3: 9 in column and block: r7c1<>9
.....5..............273......1.....6..4...1..6.....9......527..............8..... 9.9, Contradiction Forcing Chain (w/90 nodes): R1C8.7 on ==> R2C5.4 both on & off: r1c8<>7
.....5..............273......1.....6..4...1..6.....9......527..............8..... 9.9, Contradiction Forcing Chain (w/74 nodes): R9C3.7 on ==> R1C1.9 both on & off: r9c3<>7
.....5..............273......1.....6..4...1..6.....9......527..............8..... 9.9, Contradiction Forcing Chain (w/76 nodes): R9C7.2 on ==> R7C8.1 both on & off: r9c7<>2
.....5..............273......1.....6..4...1..6.....9......527..............8..... 2.8, Claiming: Cells R2C7,R4C7: 2 in column and windoku: r4c8<>2
.....5..............273......1.....6..4...1..6.....9......527..............8..... 9.9, Contradiction Forcing Chain (w/70 nodes): R5C2.7 on ==> R9C2.5 both on & off: r5c2<>7
.....5..............273......1.....6..4...1..6.....9......527..............8..... 8.0, Nishio Forcing Chain (w/18 nodes): R8C3.7 on ==> R2C8.7 both on & off: r8c3<>7
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 2.3, Naked Single: R8C3: 8: r8c3=8
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 9.5, Contradiction Forcing Chain (w/107 nodes): R7C4.9 on ==> R6C5.1 both on & off: r7c4<>9
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 9.9, Contradiction Forcing Chain (w/69 nodes): R2C9.9 on ==> R3C9.1 both on & off: r2c9<>9
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 9.9, Region Forcing Chains (w/72 nodes): 9 in block ==> R8C9.1 off: r8c9<>1
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 9.9, Contradiction Forcing Chain (w/78 nodes): R2C1.7 on ==> R4C4.9 both on & off: r2c1<>7
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 2.6, Pointing: Cells R1C2,R1C3: 7 in block and row: r1c9<>7
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 2.6, Pointing: Cells R1C2,R1C3: 7 in block and windoku: r9c2<>7
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 9.4, Contradiction Forcing Chain (w/73 nodes): R2C9.2 on ==> R9C2.1 both on & off: r2c9<>2
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 9.5, Double Forcing Chain (w/24 nodes): R2C9.7 on & off ==> R2C9.5 off: r2c9<>5
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 9.5, Contradiction Forcing Chain (w/105 nodes): R1C2.9 on ==> R3C1.4 both on & off: r1c2<>9
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 9.2, Region Forcing Chains (w/48 nodes): 9 in block ==> R1C8.2 off: r1c8<>2
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 9.4, Contradiction Forcing Chain (w/88 nodes): R3C9.9 on ==> R3C2.6 both on & off: r3c9<>9
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 2.6, Pointing: Cells R1C8,R3C8: 9 in block and column: r9c8<>9
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 9.6, Region Forcing Chains (w/28 nodes): 9 in row ==> R6C4.2 off: r6c4<>2
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 2.8, Claiming: Cells R1C4,R5C4: 2 in column and windoku: r9c2<>2
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 9.5, Contradiction Forcing Chain (w/121 nodes): R9C8.4 on ==> R7C2.4 both on & off: r9c8<>4
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 9.7, Contradiction Forcing Chain (w/41 nodes): R2C7.3 on ==> R8C4.9 both on & off: r2c7<>3
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 7.8, Nishio Forcing Chain (w/9 nodes): R5C8.3 on ==> R1C9.3 both on & off: r5c8<>3
.....5..............273......1.....6..4...1..6.....9......527....8.........8..... 9.3, Contradiction Forcing Chain (w/52 nodes): R5C9.7 on ==> R6C6.8 both on & off: r5c9<>7
.....5...........7..273......1.....6..4...1..6.....9......527....8.........8..... 1.5, Hidden Single: R2C9: 7 in column 9: r2c9=7
.....5...........7..273......1.....6..4...1..6.....9......527....8.........8..... 9.4, Contradiction Forcing Chain (w/68 nodes): R7C8.1 on ==> R6C5.7 both on & off: r7c8<>1
.....5...........7..273......1.....6..4...1..6.....9......527....8.........8..... 7.7, Nishio Forcing Chain (w/7 nodes): R8C5.1 on ==> R9C9.1 both on & off: r8c5<>1
.....5...........7..273......1.....6..4...1..6.....9......527....8.........8..... 9.4, Contradiction Forcing Chain (w/68 nodes): R7C9.3 on ==> R3C8.9 both on & off: r7c9<>3
.....5...........7..273......1.....6..4...1..6.....9......527....8.........8..... 9.4, Contradiction Forcing Chain (w/69 nodes): R1C1.3 on ==> R8C2.2 both on & off: r1c1<>3
.....5...........7..273......1.....6..4...1..6.....9......527....8.........8..... 9.4, Contradiction Forcing Chain (w/80 nodes): R4C4.3 on ==> R2C2.6 both on & off: r4c4<>3
.....5...........7..273......1.....6..4...1..6.....9......527....8.........8..... 2.9, Generalized Intersection: Cells R2C2,R2C3,R4C2: 3 in windoku: r1c2<>3
.....5...........7..273......1.....6..4...1..6.....9......527....8.........8..... 9.2, Contradiction Forcing Chain (w/44 nodes): R1C8.6 on ==> R2C3.3 both on & off: r1c8<>6
.....5...........7..273......1.....6..4...1..6.....9......527....8.........8..... 9.3, Contradiction Forcing Chain (w/54 nodes): R8C7.6 on ==> R2C2.3 both on & off: r8c7<>6
.....5...........7..273......1.....6..4...1..6.....9......527....8.........8..... 9.3, Contradiction Forcing Chain (w/59 nodes): R1C1.1 on ==> R5C4.5 both on & off: r1c1<>1
.....5...........7..273......1.....6..4...1..6.....9......527....8.........8..... 9.2, Contradiction Forcing Chain (w/48 nodes): R9C6.6 on ==> R7C4.4 both on & off: r9c6<>6
.....5...........7..273......1.....6..4...1..6.....9......527....8.........8..... 9.3, Contradiction Forcing Chain (w/60 nodes): R8C2.4 on ==> R5C9.2 both on & off: r8c2<>4
.....5...........7..273......1.....6..4...1..6.....9......527....8.........8..... 9.0, Cell Forcing Chains (w/22 nodes): R2C8 ==> R1C9.2 off: r1c9<>2
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 1.2, Hidden Single: R2C7: 2 in block 3: r2c7=2
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 2.8, Claiming: Cells R8C2,R9C1: 2 in diagonal(/) and block: r8c1<>2
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 7.7, Nishio Forcing Chain (w/7 nodes): R3C2.5 on ==> R8C8.5 both on & off: r3c2<>5
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 2.8, Claiming: Cells R3C1,R3C9: 5 in row and windoku: r4c1<>5
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 9.0, Region Forcing Chains (w/20 nodes): 8 in windoku ==> R5C6.3 off: r5c6<>3
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 9.1, Cell Forcing Chains (w/27 nodes): R1C3 ==> R7C2.1 off: r7c2<>1
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 2.8, Claiming: Cells R1C2,R9C2: 1 in column and windoku: r1c4<>1
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 9.2, Contradiction Forcing Chain (w/33 nodes): R9C2.6 on ==> R8C2.7 both on & off: r9c2<>6
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 7.9, Nishio Forcing Chain (w/13 nodes): R7C4.6 on ==> R3C7.6 both on & off: r7c4<>6
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 9.1, Contradiction Forcing Chain (w/32 nodes): R6C3.3 on ==> R2C5.1 both on & off: r6c3<>3
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 9.1, Region Forcing Chains (w/32 nodes): 5 in block ==> R8C7.4 off: r8c7<>4
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 9.1, Region Forcing Chains (w/29 nodes): 5 in column ==> R2C8.3 off: r2c8<>3
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 2.6, Pointing: Cells R1C7,R1C8,R1C9: 3 in block and row: r1c3<>3
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 2.6, Pointing: Cells R2C2,R2C3: 3 in block and windoku: r4c2<>3
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 7.8, Nishio Forcing Chain (w/9 nodes): R5C9.3 on ==> R2C3.3 both on & off: r5c9<>3
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 8.4, Region Forcing Chains (w/16 nodes): 1 in windoku ==> R3C1.4 off: r3c1<>4
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 8.4, Region Forcing Chains (w/16 nodes): 1 in windoku ==> R3C1.9 off: r3c1<>9
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 9.0, Region Forcing Chains (w/21 nodes): 2 in block ==> R6C9.3 off: r6c9<>3
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 7.8, Nishio Forcing Chain (w/12 nodes): R7C8.3 on ==> R6C2.3 both on & off: r7c8<>3
.....5.........2.7..273......1.....6..4...1..6.....9......527....8.........8..... 7.8, Nishio Forcing Chain (w/12 nodes): R8C7.3 on ==> R6C2.3 both on & off: r8c7<>3
.....5.........2.7..273......1.....6..4...1..6.....9......527....8...5.....8..... 2.3, Naked Single: R8C7: 5: r8c7=5
.....5.........2.7..273......1.....6..4...1..6.....9......527....8...5.....8..... 2.8, Claiming: Cells R2C2,R4C4: 5 in antidiagonal(\) and windoku: r2c3<>5
.....5.........2.7..273......1.....6..4...1..6.....9......527....8...5.....8..... 7.1, Bidirectional Cycle (w/6 nodes): R6C3,R1C3,R1C2,R9C2,R9C3: r5c4<>5, r9c1<>5
.....5.........2.7..273......1.....6..4...1..6.....9......527....8...5.....8..... 8.9, Cell Forcing Chains (w/16 nodes): R3C1 ==> R4C4.4 off: r4c4<>4
.....5.........2.7..273......1.....6..4...1..6.....9......527....8...5.....8..... 2.9, Generalized Intersection: Cells R2C2,R2C4,R3C2: 4 in windoku: r2c1<>4
.....5.........2.7..273......1.....6..4...1..6.....9......527....8...5.....8..... 7.8, Nishio Forcing Chain (w/12 nodes): R9C5.4 on ==> R1C8.4 both on & off: r9c5<>4
.....5.........2.7..273......1.....6..4...1..6.....9......527....8...5.....8..... 9.0, Cell Forcing Chains (w/17 nodes): R6C5 ==> R5C1.3 off: r5c1<>3
.....5.....3...2.7..273......1.....6..4...1..6.....9......527....8...5.....8..... 1.7, Direct Pointing: Cells R5C2,R6C2: 3 of block in column: r2c2<>3, r2c3=3
.....5.....3...2.7..273......1.....6..4...1..6.....9......527....8...5.....8..... 7.9, Nishio Forcing Chain (w/13 nodes): R1C4.6 on ==> R8C6.6 both on & off: r1c4<>6
.....5.....3...2.7..273......1.....6..4...1..6.....9......527....8...5.....8..... 7.9, Nishio Forcing Chain (w/13 nodes): R3C6.6 on ==> R8C4.6 both on & off: r3c6<>6
.....5.....3...2.7..273......1.....6..4...1..6.....9......527....8...5.....8..... 8.7, Cell Forcing Chains (w/8 nodes): R7C2 ==> R2C4.9 off: r2c4<>9
.....5.....3...2.7..273......1.....6..4...1..6.....9......527....8...5.....8..... 9.0, Cell Forcing Chains (w/17 nodes): R1C1 ==> R2C5.4 off: r2c5<>4
.....5.....3...2.7..273......1.....6..4...1..6.....9......527....8...5.....8..... 2.8, Claiming: Cells R2C2,R2C4: 4 in row and windoku: r3c2<>4
.....5.....3...2.7..273......1.....6..4...1..6.....9......527....8...5.....8..... 2.6, Pointing: Cells R1C1,R2C2: 4 in block and antidiagonal(\): r6c6<>4, r9c9<>4
.....5.....3...2.7..273......1.....6..4...1..6.....9......527....8...5.....8..... 7.1, Forcing Chain (w/6 nodes): R2C2.5 off: r2c2<>5
.....5.....3...2.75.273......1.....6..4...1..6.....9......527....8...5.....8..... 1.2, Hidden Single: R3C1: 5 in block 1: r3c1=5
.....5.....3...2575.273......1.....6..4...1..6.....9......527....8...5.....8..... 1.2, Hidden Single: R2C8: 5 in block 3: r2c8=5
.....5.....3...2575.273......15....6..4...1..6.....9......527....8...5.....8..... 1.2, Hidden Single: R4C4: 5 in block 5: r4c4=5
.....5.....3...2575.273......15....6..4...1.56.....9......527....8...5.....8..... 1.2, Hidden Single: R5C9: 5 in block 6: r5c9=5
.....5.....3...2575.273......15....6..4...1.56.....9......527....8...5.....8..... 2.8, Claiming: Cells R6C9,R8C9: 2 in column and windoku: r6c5<>2
.....5.....3...2575.273......15....6..4...1.56.....9......527....8...5.....8..... 2.8, Claiming: Cells R2C2,R3C2,R4C2: 9 in windoku and column: r5c2<>9
.....5.....3...2575.273......15....6.34...1.56.....9......527....8...5.....8..... 2.3, Naked Single: R5C2: 3: r5c2=3
.....5.....3...2575.273......15....6.34...1.56.....9......527....8...5.....8..... 3.6, Naked Triplet: Cells R4C6,R4C7,R4C8: 3,4,7 in row: r4c5<>4
.....5.....3...2575.273...4..15....6.34...1.56.....9......527....8...5.....8..... 1.5, Hidden Single: R3C9: 4 in windoku 7: r3c9=4
.....5.....3...2575.273...4..15....6.34...1.56.....9......527....8...5.....8..... 2.6, Pointing: Cells R4C6,R6C4: 4 in block and diagonal(/): r9c1<>4
.....5.....3...2575.273...4..15....6.34...1.56.....9......527....8...5.....8..... 2.8, Claiming: Cells R3C6,R3C8: 1 in row and windoku: r2c6<>1
.....5.....3...2575.273...4..15....6.34...1.56.....9......527....8...5.....8..... 6.6, Turbot Fish (w/4 nodes): R9C5.1 off: r9c5<>1
.....5.....3...2575.273...4..15....6.34...1.56.....9......527....8...5.....8..... 7.1, Bidirectional Cycle (w/6 nodes): R1C2,R2C1,R2C5,R6C5,R6C3,R1C3: r1c5<>1, r6c2<>7
.....5.....3...2575.273...4..15....6.34...1.56.....9......527....8...5.....8..... 7.1, Forcing Chain (w/6 nodes): R9C1.1 off: r9c1<>1
.....5.....3...2575.273...4..15....6.34...1.56.....9......527....8...5.....8..... 2.8, Claiming: Cells R1C9,R9C9: 1 in windoku and column: r7c9<>1
.....5.....3...2575.273...4..15....6.34...1.56.....9......527....8...5.....8..... 2.6, Pointing: Cells R8C8,R9C9: 1 in block and antidiagonal(\): r6c6<>1
.....5.....3...2575.273...4..15....6.34...1.56.....9......527....8...5.....8..... 2.8, Claiming: Cells R8C6,R8C8: 1 in windoku and row: r8c4<>1
.....5.....3...2575.273...4..15....6.34...1.56.....9......527....8...5.....8..... 3.4, Hidden Pair: Cells R7C1,R7C4: 1,3 in row: r7c1<>4, r7c4<>4
.....5.....3...2575.273...4..15....6.34...1.56.....9......527....8...5.....8..... 2.8, Claiming: Cells R8C1,R8C5: 4 in windoku and row: r8c4<>4, r8c6<>4
.....5.....3...2575.273...4..15....6.34...1.56.....9......527....8...5.....8..... 2.8, Claiming: Cells R6C8,R7C8: 4 in windoku and column: r4c8<>4
.....5.....3...2575.273...4..15....6.34...1.56.....9......527....8...5.....8..... 6.8, Bidirectional Y-Cycle (w/10 nodes): R7C3,R7C9,R6C9,R6C2,R6C3,R1C3: r9c3<>6
.....5.....3...2575.273...4..15....6.34...1.56.....9......527....8...5.....8..... 2.6, Pointing: Cells R7C2,R7C3: 6 in block and row: r7c8<>6
.....5.9...3...2575.273...4..15....6.34...1.56.....9......527....8...5.....8..... 2.0, Direct Hidden Pair: Cells R3C8,R8C8: 1,6 in column: r3c8<>9, r8c8<>3, r1c8=9
...2.5.9...3...2575.273...4..15....6.34...1.56.....9......527....8...5.....8..... 2.3, Naked Single: R1C4: 2: r1c4=2
...2.5.9...3...2575.273...4..152...6.34...1.56.....9......527....8...5.....8..... 1.2, Hidden Single: R4C5: 2 in block 5: r4c5=2
...2.5.9...3...2575.273...4..152...6.34...1.56.....9......527....8...5.....8..... 2.6, Pointing: Cells R5C4,R5C5: 9 in block and row: r5c1<>9
...2.5.9...3...2575.273...4..152...6.34...1.56.....9......527....8...5.....8..... 2.8, Claiming: Cells R2C6,R3C6: 9 in column and block: r2c5<>9
...2.5.9...3...2575.273...4..152...6.34...1.56.....9......527....8...5.....8..... 2.6, Pointing: Cells R7C2,R7C3: 6 in block and windoku: r8c4<>6
...2.5.9...3...2575.273...4..152...6.34...1.56.....9......527....8...5.....8..... 2.9, Generalized Intersection: Cells R6C6,R9C9: 3 in antidiagonal(\): r9c6<>3
...2.5.9...3...2575.273...4..152...6.34...1.56.....9......527....8...5.....8..... 3.4, Hidden Pair: Cells R8C6,R8C8: 1,6 in row: r8c6<>3
...2.5.9...3...2575.273...4..152...6.34...1.56.....9......527....8...5.....8..... 2.6, Pointing: Cells R7C4,R8C4: 3 in block and column: r6c4<>3
...2.5.9...3...2575.273...4..152...6.34...1.56.....9......527....8...5.....8..... 7.1, Forcing Chain (w/6 nodes): R1C5.6 off: r1c5<>6
...2.5.9...3...2575.273...4..152...6.34...1.56.....9......527....8...5.....8..... 2.6, Pointing: Cells R2C4,R2C6: 6 in block and row: r2c2<>6
...2.5.9...3...2575.273...4..152...6.34...1.56.....9......527....8...5.....8..... 3.0, Naked Pair: Cells R1C1,R1C5: 4,8 in row: r1c7<>8
...2.5.9...3...2575.273.8.4..152...6.34...1.56.....9......527....8...5.....8..... 1.2, Hidden Single: R3C7: 8 in block 3: r3c7=8
...2.5.9...3...2575.273.8.4..152...6.34...1.56.....9......527....8...5.....8..... 2.8, Claiming: Cells R1C7,R9C7: 6 in column and windoku: r5c6<>6
...2.5.9...3...2575.273.8.4..152...6.34...1.56.....9......527....8...5.....8..... 7.1, Bidirectional Cycle (w/6 nodes): R1C9,R6C4,R4C6,R4C7,R1C7: r9c7<>3
...2.5.9...3...2575.273.8.4..152...6.34...1.56.....9......527....8...5.....8..... 7.1, Forcing Chain (w/6 nodes): R2C2.9 off: r2c2<>9
...2.5.9...3...2575.273.8.4..152...6.34...1.56....39......527....8...5.....8..... 2.5, Direct Hidden Triplet: Cells R5C5,R8C8,R9C9: 1,6,9 in antidiagonal(\): r9c9<>3, r6c6=3
...2.5.9...3...2575.273.8.4..152...6.34..81.56....39......527....8...5.....8..... 1.2, Hidden Single: R5C6: 8 in block 5: r5c6=8
...2.5.9...3...2575.273.8.4..152...6.34..81.56....39......527....8...5.....8..... 2.8, Claiming: Cells R1C1,R2C2: 8 in antidiagonal(\) and block: r2c1<>8
...2.5.9...3...2575.273.8.4..152...6.34..81.56....39......527....8...5.....8..... 2.8, Claiming: Cells R5C5,R9C9: 9 in antidiagonal(\) and windoku: r9c5<>9
...2.5.9...3...2575.273.8.4..152...6.34..81.56....39......527....8...5.....8..... 2.6, Pointing: Cells R8C4,R8C5: 9 in block and row: r8c9<>9
...2.5.9...3...2575.273.8.4..152...6.34..81.56....39......527....8...5.....8..... 2.9, Generalized Intersection: Cells R4C6,R9C6: 7 in column: r9c1<>7
...2.5.9...3...2575.273.8.4..152...6.34..81.56....39......527....8...5.....8..... 2.6, Pointing: Cells R8C1,R8C2: 7 in block and row: r8c5<>7
...2.5.9...3...2575.273.8.4..152...6.34..81.56....39......527....8...5.....8..... 5.6, BUG type 1: R8C1: r8c1<>4,7
...2.5.9...3...2575.273.8.4..152...6.34..81.56....39...4..527....8...5.....8..... 1.2, Hidden Single: R7C2: 4 in block 7: r7c2=4
4..2.5.9...3...2575.273.8.4..152...6.34..81.56....39...4..527....8...5.....8..... 1.2, Hidden Single: R1C1: 4 in block 1: r1c1=4
4..2.5.9..83...2575.273.8.4..152...6.34..81.56....39...4..527....8...5.....8..... 1.2, Hidden Single: R2C2: 8 in block 1: r2c2=8
4..2.5.9..834..2575.273.8.4..152...6.34..81.56....39...4..527....8...5.....8..... 1.2, Hidden Single: R2C4: 4 in block 2: r2c4=4
4..2.5.9..834.62575.273.8.4..152...6.34..81.56....39...4..527....8...5.....8..... 1.2, Hidden Single: R2C6: 6 in block 2: r2c6=6
4..285.9..834.62575.273.8.4..152...6.34..81.56....39...4..527....8...5.....8..... 1.2, Hidden Single: R1C5: 8 in block 2: r1c5=8
4..285.9..834.62575.27398.4..152...6.34..81.56....39...4..527....8...5.....8..... 1.2, Hidden Single: R3C6: 9 in block 2: r3c6=9
4..285.9..834162575.27398.4..152...6.34..81.56....39...4..527....8...5.....8..... 1.0, Hidden Single: R2C5: 1 in block 2: r2c5=1
4..285.9.9834162575.27398.4..152...6.34..81.56....39...4..527....8...5.....8..... 1.0, Hidden Single: R2C1: 9 in row 2: r2c1=9
41.285.9.9834162575.27398.4..152...6.34..81.56....39...4..527....8...5.....8..... 1.2, Hidden Single: R1C2: 1 in block 1: r1c2=1
417285.9.9834162575.27398.4..152...6.34..81.56....39...4..527....8...5.....8..... 1.2, Hidden Single: R1C3: 7 in block 1: r1c3=7
417285.9.9834162575627398.4..152...6.34..81.56....39...4..527....8...5.....8..... 1.0, Hidden Single: R3C2: 6 in block 1: r3c2=6
417285.9.983416257562739814..152...6.34..81.56....39...4..527....8...5.....8..... 1.0, Hidden Single: R3C8: 1 in row 3: r3c8=1
41728569.983416257562739814..152...6.34..81.56....39...4..527....8...5.....8..... 1.2, Hidden Single: R1C7: 6 in block 3: r1c7=6
417285693983416257562739814..152...6.34..81.56....39...4..527....8...5.....8..... 1.0, Hidden Single: R1C9: 3 in block 3: r1c9=3
417285693983416257562739814..152...6734..81.56....39...4..527....8...5.....8..... 1.2, Hidden Single: R5C1: 7 in block 4: r5c1=7
417285693983416257562739814..152...6734..81.562...39...4..527....8...5.....8..... 1.2, Hidden Single: R6C2: 2 in block 4: r6c2=2
417285693983416257562739814..152...6734..81.5625..39...4..527....8...5.....8..... 1.2, Hidden Single: R6C3: 5 in block 4: r6c3=5
4172856939834162575627398148.152...6734..81.5625..39...4..527....8...5.....8..... 1.2, Hidden Single: R4C1: 8 in block 4: r4c1=8
41728569398341625756273981489152...6734..81.5625..39...4..527....8...5.....8..... 1.0, Hidden Single: R4C2: 9 in block 4: r4c2=9
41728569398341625756273981489152...6734..81.56251.39...4..527....8...5.....8..... 1.2, Hidden Single: R6C4: 1 in block 5: r6c4=1
417285693983416257562739814891524..6734..81.56251.39...4..527....8...5.....8..... 1.2, Hidden Single: R4C6: 4 in block 5: r4c6=4
417285693983416257562739814891524..6734..81.56251739...4..527....8...5.....8..... 1.2, Hidden Single: R6C5: 7 in block 5: r6c5=7
417285693983416257562739814891524..6734..81256251739...4..527....8...5.....8..... 1.2, Hidden Single: R5C8: 2 in block 6: r5c8=2
417285693983416257562739814891524..6734..812562517394..4..527....8...5.....8..... 1.2, Hidden Single: R6C8: 4 in block 6: r6c8=4
417285693983416257562739814891524..6734..8125625173948.4..527....8...5.....8..... 1.0, Hidden Single: R6C9: 8 in row 6: r6c9=8
417285693983416257562739814891524.76734..8125625173948.4..527....8...5.....8..... 1.2, Hidden Single: R4C8: 7 in block 6: r4c8=7
417285693983416257562739814891524376734..8125625173948.4..527....8...5.....8..... 1.0, Hidden Single: R4C7: 3 in block 6: r4c7=3
417285693983416257562739814891524376734..8125625173948.4..527....8...5.....8..4.. 1.0, Hidden Single: R9C7: 4 in column 7: r9c7=4
417285693983416257562739814891524376734..812562517394814..527....8...5.....8..4.. 1.2, Hidden Single: R7C1: 1 in block 7: r7c1=1
417285693983416257562739814891524376734..812562517394814..527....8...5..2..8..4.. 1.2, Hidden Single: R9C1: 2 in block 7: r9c1=2
417285693983416257562739814891524376734..812562517394814..527..3.8...5..2..8..4.. 1.0, Hidden Single: R8C1: 3 in column 1: r8c1=3
417285693983416257562739814891524376734..812562517394814..527..3.8...5..25.8..4.. 1.2, Hidden Single: R9C2: 5 in block 7: r9c2=5
417285693983416257562739814891524376734..812562517394814..527..378...5..25.8..4.. 1.0, Hidden Single: R8C2: 7 in column 2: r8c2=7
417285693983416257562739814891524376734..8125625173948146.527..378...5..25.8..4.. 1.2, Hidden Single: R7C3: 6 in block 7: r7c3=6
417285693983416257562739814891524376734..8125625173948146.527..378...5..2598..4.. 1.0, Hidden Single: R9C3: 9 in block 7: r9c3=9
4172856939834162575627398148915243767346.8125625173948146.527..378...5..2598..4.. 1.2, Hidden Single: R5C4: 6 in block 5: r5c4=6
417285693983416257562739814891524376734698125625173948146.527..378...5..2598..4.. 1.0, Hidden Single: R5C5: 9 in block 5: r5c5=9
417285693983416257562739814891524376734698125625173948146.527..378..15..2598..4.. 1.2, Hidden Single: R8C6: 1 in block 8: r8c6=1
417285693983416257562739814891524376734698125625173948146.527..378..15..2598.74.. 1.0, Hidden Single: R9C6: 7 in column 6: r9c6=7
4172856939834162575627398148915243767346981256251739481463527..378..15..2598.74.. 1.2, Hidden Single: R7C4: 3 in block 8: r7c4=3
4172856939834162575627398148915243767346981256251739481463527..3789.15..2598.74.. 1.0, Hidden Single: R8C4: 9 in column 4: r8c4=9
4172856939834162575627398148915243767346981256251739481463527..3789415..2598.74.. 1.2, Hidden Single: R8C5: 4 in block 8: r8c5=4
4172856939834162575627398148915243767346981256251739481463527..3789415..2598674.. 1.0, Hidden Single: R9C5: 6 in block 8: r9c5=6
4172856939834162575627398148915243767346981256251739481463527..3789415..2598674.1 1.2, Hidden Single: R9C9: 1 in block 9: r9c9=1
4172856939834162575627398148915243767346981256251739481463527..3789415..259867431 1.0, Hidden Single: R9C8: 3 in row 9: r9c8=3
4172856939834162575627398148915243767346981256251739481463527..3789415.2259867431 1.2, Hidden Single: R8C9: 2 in block 9: r8c9=2
4172856939834162575627398148915243767346981256251739481463527.93789415.2259867431 1.0, Hidden Single: R7C9: 9 in column 9: r7c9=9
4172856939834162575627398148915243767346981256251739481463527893789415.2259867431 1.0, Hidden Single: R7C8: 8 in row 7: r7c8=8
417285693983416257562739814891524376734698125625173948146352789378941562259867431 1.0, Hidden Single: R8C8: 6 in block 9: r8c8=6
ED=11.9/11.9/2.9


[urhegyi]

Code: Select all

.....7..............298......1.....6..3...1..6.....2......437..............5..... ED=11.5/11.5/2.8

[urhegyi]

Code: Select all

.....1..............376......5.....4..8...5..9.....6......247..............3..... ED=11.1/11.1/2.6

Code: Select all

.....4..............562......1.....7..9...8..8.....9......421..............7..... ED=11.1/11.1/2.6

Code: Select all

.....4..............562......1.....7..9...8..8.....9......426..............7..... ED=11.1/11.1/2.6

Code: Select all

.....8..............176......3.....1..2...4..9.....2......547..............3..... ED=11.1/11.1/2.6

Code: Select all

.....5..............273......9........4...1..6.....9......576..............8..... ED=11.1/11.1/2.8

[urhegyi]

Code: Select all

.....1..............136......5.....4..8...5..9.....8......247..............7..... ED=11.3/11.3/2.6

Code: Select all

.....4..............287......3.....4..1...3..4.....6......985..............7..... ED=11.3/11.3/2.8

Code: Select all

.....3..............872......9.....4..3...9..2.....8......547..............6..... ED=11.3/11.3/2.6

Code: Select all

.....8..............526......3.....7..2...1..1.....4......793..............8..... ED=11.3/11.3/2.6

Code: Select all

.....5..............623......1........4...1..8.....9......527..............8..... ED=11.3/11.3/2.8

Code: Select all

.....2..............586......4.....3..8...7..6.....2......9.3..............5..... ED=11.3/11.3/2.6

[urhegyi]

Code: Select all

.....5..............562......1.....7..3...8..8.....9......426..............7..... ED=11.2/11.2/2.6

Code: Select all

.....2..............241......6.....3..5...7..1.....8......453..............9..... ED=11.2/11.2/2.8

[urhegyi]

Code: Select all

.....5..............569......1.....7..6...3..8.....9......421..............7..... ED=11.0/11.0/2.6

Code: Select all

.....9..............246......8.....3..5...7..1.....2......358..............9..... ED=11.0/11.0/2.8

[urhegyi]

Code: Select all

.....7..............568......1.....7..2...3..8.....9......624..............7..... ED=11.4/11.4/2.8

Code: Select all

.....7..............749......6.....2..1...8..8.....5......436..............9..... ED=11.4/11.4/7.8

[m_b_metcalf]

urhegyi's pattern appeared to offer good seeds for further investigation. Below is a series of puzzles
with a progressively lower number of clues (thought I couldn't reach the known minimem of nine).

Nothing really new, just for the record.

Mike

Code: Select all

 . . . . . 1 . . .
 . . . . . . . . .
 . . 2 3 4 . . . .
 . . 5 . . . . . 6
 . . 7 . . . 5 . .
 8 . . . . . 9 . .
 . . . . 1 2 3 . .
 . . . . . . . . .
 . . . 6 . . . . .   ED=11.6/11.6/2.9, 14 clues, urhegyi's original pattern

 . . . . . 1 . . .
 . . . . . . . . .
 . . 2 3 4 . . . .
 . . 5 . . . . . .
 . . 6 . . . 5 . .
 7 . . . . . 8 . .
 . . . . 9 2 4 . .
 . . . . . . . . .
 . . . 1 . . . . .   ED=10.0/7.7/2.9,  13 clues

 . . . . . 1 . . .
 . . . . . . . . .
 . . 2 3 4 . . . .
 . . 5 . . . . . 2
 . . 6 . . . . . .
 2 . . . . . 7 . .
 . . . . 8 . 4 . .
 . . . . . . . . .
 . . . 9 . . . . .   ED=10.3/7.7/2.9,  12 clues

 . . . . . 1 . . .
 . . . . . . . . .
 . . 2 3 4 . . . .
 . . . . . . . . 5
 . . 6 . . . . . .
 5 . . . . . 7 . .
 . . . . 3 . 4 . .
 . . . . . . . . .
 . . . 8 . . . . .   ED=11.4/7.7/2.9,  11 clues

 . . . . . 1 . . .
 . . . . . . . . .
 . . 2 3 4 . . . .
 . . . . . . . . 5
 . . 6 . . . . . .
 7 . . . . . 8 . .
 . . . . . . 4 . .
 . . . . . . . . .
 . . . 5 . . . . .   ED=11.3/7.7/2.9,  10 clues


[urhegyi]

14 clues:
11.9:

Code: Select all

.....5..............273......1.....6..4...1..6.....9......527..............8..... ED=11.9/11.9/2.9

11.8:

Code: Select all

.....6..............273......5.....6..4...1..6.....9......537..............8..... ED=11.8/11.8/2.8

11.7:
11.6:

Code: Select all

.....1..............234......5.....6..7...5..8.....9......123..............6..... ED=11.6/11.6/2.6

11.5:

Code: Select all

.....7..............298......1.....6..3...1..6.....2......437..............5..... ED=11.5/11.5/2.8

11.4:

Code: Select all

.....7..............568......1.....7..2...3..8.....9......624..............7..... ED=11.4/11.4/2.8

11.4:

Code: Select all

.....7..............749......6.....2..1...8..8.....5......436..............9..... ED=11.4/11.4/7.8

13 clues:
11.3:

Code: Select all

.....5..............623......1........4...1..8.....9......527..............8..... ED=11.3/11.3/2.8

11.2:
11.1:

Code: Select all

.....5..............273......9........4...1..6.....9......576..............8..... ED=11.1/11.1/2.8

[m_b_metcalf]

14 clues:
11.9:

Code: Select all

.....5..............273......1.....6..4...1..6.....9......527..............8..... ED=11.9/11.9/2.9

13 clues:
11.9:

Code: Select all

.....1..............234......5.....2..6...5..2.....7......1.8..............9..... 11.9/11.9/7.7

Mike

P.s. it took well over 2 hours to rate.

[urhegyi]

14 clues:
11.9:

Code: Select all

.....5..............273......1.....6..4...1..6.....9......527..............8..... ED=11.9/11.9/2.9

13 clues:
11.9:

Code: Select all

.....1..............234......5.....2..6...5..2.....7......1.8..............9..... 11.9/11.9/7.7

Mike

P.s. it took well over 2 hours to rate.

Great news,
I found other slightly lower ones:

Code: Select all

.....9..............127......8.....6..9...2..5.....1......4.3..............7..... ED=11.9/11.9/2.8

Code: Select all

.....9..............157......8.....6..9...2..5.....1......4.6..............2..... ED=11.7/11.7/2.6

Code: Select all

.....9..............167......8.....6..3...2..5.....1......4.5..............2..... ED=11.3/11.3/2.6

[urhegyi]

There seems to be a certain regularity in this pattern:

Code: Select all

.....7..............568......1.....7..2...3..8.....9......624..............7..... ED=11.4/11.4/2.8 14 clues
.....7..............749......6.....2..1...8..8.....5......436..............9..... ED=11.4/11.4/7.8 14 clues
.....9..............127......8.....6..9...2..5.....1......4.3..............7..... ED=11.9/11.9/2.8 13 clues
.....1..............234......5.....2..6...5..2.....7......1.8..............9..... ED=11.9/11.9/7.7 13 clues


[m_b_metcalf]

I now have about 700 variations on this theme to process. Looks as though it will take a week! Top three so far:

Code: Select all

....................123......4.....5......4..5.....6......743..............8..... 13  ED=11.3/2.9/2.9
.....1..............234......5.....6..6...5..7.....8......1.7..............9..... 13  ED=11.4/11.4/7.8
.....1..............234......5.....6..6...5..2.....7......1.8..............7..... 13  ED=11.8/11.8/2.9

[m_b_metcalf]

An early result with 11 clues:

Code: Select all

.....1..............234......5...............3.....6......724..............8.....   11 clues, ED=11.7/7.7/2.9