highest number of xy-wings in extra region sudoku?

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highest number of xy-wings in extra region sudoku?

Postby urhegyi » Wed Dec 15, 2021 10:25 pm

Image
Code: Select all
#1//B4,JSB
..73..5....6..7.........1.8....8..6......9....3......72......94...1.......5......
.....22.....2222..11..22...1111.2.3..11...33..1.4.3333...44..33..4444.....44.....

solution:
Hidden Text: Show
Code: Select all
Solution Path
1: 1.2, Hidden Single: R3C4: 5 in block 2: r3c4=5
2: 1.2, Hidden Single: R1C9: 6 in block 3: r1c9=6
3: 1.2, Hidden Single: R3C8: 7 in block 3: r3c8=7
4: 1.2, Hidden Single: R4C7: 4 in block 6: r4c7=4
5: 1.2, Hidden Single: R4C9: 9 in block 6: r4c9=9
6: 1.2, Hidden Single: R2C7: 9 in block 3: r2c7=9
7: 1.2, Hidden Single: R1C5: 9 in block 2: r1c5=9
8: 1.2, Hidden Single: R7C6: 5 in block 8: r7c6=5
9: 1.2, Hidden Single: R9C4: 9 in block 8: r9c4=9
10: 1.5, Hidden Single: R3C3: 3 in row 3: r3c3=3
11: 1.5, Hidden Single: R6C3: 9 in column 3: r6c3=9
12: 1.5, Hidden Single: R4C6: 3 in row 4: r4c6=3
13: 1.5, Hidden Single: R5C2: 6 in extra region 1: r5c2=6
14: 1.5, Hidden Single: R5C3: 8 in extra region 1: r5c3=8
15: 1.5, Hidden Single: R4C3: 2 in column 3: r4c3=2
16: 1.5, Hidden Single: R7C3: 1 in column 3: r7c3=1
17: 1.0, Hidden Single: R8C3: 4 in column 3: r8c3=4
18: 2.0, Direct Hidden Pair: Cells R8C1,R9C1: 3,6 in block: r9c1<>7,8, r8c1<>7,8,9, r8c2=9
19: 1.2, Hidden Single: R3C1: 9 in block 1: r3c1=9
20: 1.5, Hidden Single: R3C2: 4 in extra region 1: r3c2=4
21: 2.0, Direct Hidden Pair: Cells R4C1,R4C2: 1,5 in row: r4c1<>7, r4c2<>7, r4c4=7
22: 1.2, Hidden Single: R5C1: 7 in block 4: r5c1=7
23: 1.2, Hidden Single: R6C1: 4 in block 4: r6c1=4
24: 2.6, Pointing: Cells R7C2,R9C2: 8 in block and column: r2c2<>8, r1c2<>8
25: 2.8, Claiming: Cells R3C5,R3C6: 2 in row and block: r1c6<>2, r2c4<>2, r2c5<>2
26: 2.8, Claiming: Cells R5C4,R6C4: 2 in column and block: r5c5<>2, r6c6<>2, r6c5<>2
27: 2.3, Naked Single: R6C6: 1: r6c6=1
28: 1.2, Hidden Single: R2C5: 1 in block 2: r2c5=1
29: 1.2, Hidden Single: R5C9: 1 in block 6: r5c9=1
30: 1.2, Hidden Single: R9C8: 1 in block 9: r9c8=1
31: 1.5, Hidden Single: R8C9: 5 in column 9: r8c9=5
32: 2.8, Claiming: Cells R6C4,R7C4: 6 in column and extra region: r7c5<>6, r8c5<>6, r8c6<>6
33: 2.8, Claiming: Cells R7C5,R8C5: 3 in extra region and block: r9c5<>3
34: 2.8, Claiming: Cells R7C5,R8C5: 7 in extra region and block: r9c5<>7
35: 2.8, Claiming: Cells R7C4,R8C6: 8 in extra region and block: r9c6<>8
36: 3.4, Hidden Pair: Cells R7C5,R8C5: 3,7 in block: r8c5<>2
37: 3.4, Hidden Pair: Cells R9C2,R9C7: 7,8 in row: r9c7<>2,3,6
38: 4.2, XY-Wing: Cells R1C6,R1C8,R8C6 on value 2: r8c8<>2
39: 4.2, XY-Wing: Cells R6C4,R6C7,R7C4 on value 8: r7c7<>8
40: 4.2, XY-Wing: Cells R8C6,R7C4,R3C6 on value 6: r9c6<>6
41: 1.5, Hidden Single: R3C6: 6 in column 6: r3c6=6
42: 1.0, Hidden Single: R3C5: 2 in row 3: r3c5=2
43: 4.2, XY-Wing: Cells R8C8,R9C7,R8C5 on value 7: r8c7<>7
44: 1.5, Hidden Single: R8C5: 7 in row 8: r8c5=7
45: 1.2, Hidden Single: R7C5: 3 in block 8: r7c5=3
46: 4.2, XY-Wing: Cells R8C8,R9C9,R8C6 on value 2: r9c6<>2, r8c7<>2
47: 1.2, Hidden Single: R8C6: 2 in block 8: r8c6=2
48: 1.2, Hidden Single: R5C4: 2 in block 5: r5c4=2
49: 1.2, Hidden Single: R5C5: 4 in block 5: r5c5=4
50: 1.2, Hidden Single: R6C5: 5 in block 5: r6c5=5
51: 1.0, Hidden Single: R6C4: 6 in block 5: r6c4=6
52: 1.0, Hidden Single: R9C5: 6 in column 5: r9c5=6
53: 1.2, Hidden Single: R5C8: 5 in block 6: r5c8=5
54: 1.0, Hidden Single: R5C7: 3 in row 5: r5c7=3
55: 1.2, Hidden Single: R8C1: 6 in block 7: r8c1=6
56: 1.2, Hidden Single: R9C1: 3 in block 7: r9c1=3
57: 1.2, Hidden Single: R9C6: 4 in block 8: r9c6=4
58: 1.0, Hidden Single: R7C4: 8 in block 8: r7c4=8
59: 1.0, Hidden Single: R2C4: 4 in column 4: r2c4=4
60: 1.0, Hidden Single: R1C6: 8 in block 2: r1c6=8
61: 1.2, Hidden Single: R2C1: 8 in block 1: r2c1=8
62: 1.2, Hidden Single: R2C2: 5 in block 1: r2c2=5
63: 1.2, Hidden Single: R1C2: 2 in block 1: r1c2=2
64: 1.0, Hidden Single: R1C1: 1 in block 1: r1c1=1
65: 1.0, Hidden Single: R4C1: 5 in column 1: r4c1=5
66: 1.0, Hidden Single: R4C2: 1 in block 4: r4c2=1
67: 1.0, Hidden Single: R1C8: 4 in row 1: r1c8=4
68: 1.2, Hidden Single: R9C2: 8 in block 7: r9c2=8
69: 1.0, Hidden Single: R7C2: 7 in block 7: r7c2=7
70: 1.0, Hidden Single: R7C7: 6 in row 7: r7c7=6
71: 1.2, Hidden Single: R9C9: 2 in block 9: r9c9=2
72: 1.0, Hidden Single: R2C9: 3 in column 9: r2c9=3
73: 1.0, Hidden Single: R2C8: 2 in block 3: r2c8=2
74: 1.0, Hidden Single: R9C7: 7 in row 9: r9c7=7
75: 1.2, Hidden Single: R6C7: 2 in block 6: r6c7=2
76: 1.0, Hidden Single: R6C8: 8 in block 6: r6c8=8
77: 1.0, Hidden Single: R8C7: 8 in column 7: r8c7=8
78: 1.0, Hidden Single: R8C8: 3 in block 9: r8c8=3
urhegyi
 
Posts: 612
Joined: 13 April 2020

Re: highest number of xy-wings in extra region sudoku?

Postby Hajime » Thu Dec 16, 2021 4:36 pm

Like it.
Here is one with some Turbot-fish: 2 SkyScrapers and 1 TurbotCrane and 1 similar for the extra jigsaw regions
Code: Select all
#1//B4,JSB
..26.57.........1................3....5.....4........2..4...8...9...1.......8..4.
.....22.....2222..11..22...1111.2.3..11...33..1.4.3333...44..33..4444.....44.....
User avatar
Hajime
 
Posts: 1011
Joined: 20 April 2018
Location: Netherlands


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