2 sudoku-x 6x6 grids

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2 sudoku-x 6x6 grids

Postby urhegyi » Fri Oct 30, 2020 9:37 am

The first one:
123307027_2778507825739672_1071951247091202524_n.png
123307027_2778507825739672_1071951247091202524_n.png (47.81 KiB) Viewed 73 times
They seem to have both hidden constraints(like the 4 digits R34C25 are the same as R25C34).
The first example I needed one trick to solve, the second one at least three.
Can someone find a better way to solve?
After the basics:
Code: Select all
.1.5....5.1.15.......1.5.2.351531.4.

The second one:
mu4j1bur5tw41.png
mu4j1bur5tw41.png (33.73 KiB) Viewed 73 times

After the basics:
Code: Select all
2.5.6.1.65...6..5.5..6...5...66..4.5
urhegyi
 
Posts: 96
Joined: 13 April 2020

Re: 2 sudoku-x 6x6 grids

Postby 1to9only » Fri Oct 30, 2020 12:28 pm

Both are X variants - just different presentations.
Code: Select all
.1......5.1.1..........5.2.3......4. ED=2.9/1.2/1.2
2...6.1......6....5......5...6...4.5 ED=2.9/1.2/1.2

ED=2.9 is my rating for Generalized intersections.

For 1st puzzle at:
Code: Select all
.1.5....5.1.15.......1.5.2.351531.4.

Next step:
Hidden Text: Show
Code: Select all
.1.5....5.1.15.......1.5.2.351531.4. 2.6, Pointing: Cells R3C4,R3C6: 4 in block and row: -4r3c3

Solution path after above next step:
Hidden Text: Show
Code: Select all
.1.5....5.1.15.......1.5.2.351531.4. 2.8, Claiming: Cells R1C1,R2C2: 4 in antidiagonal(\) and block: -4r2c1, -4r1c3
.1.5....5.1.15.......1.5.2.351531.4. 2.9, Generalized Intersection: Cells R3C3,R4C1: 2 in block: -2r1c1
.1.5....5.1.15.......1.5.2.351531.4. 2.9, Generalized Intersection: Cells R3C4,R3C6: 4 in block: -4r1c6
41.5....5.1.15.......1.5.2.351531.4. 1.5, Hidden Single: R1C1: 4 in row
41.5....5.1.15.......1.5.24351531.4. 1.2, Hidden Single: R5C3: 4 in block
41.5....5.1.15.......1.5624351531.4. 1.0, Hidden Single: R5C1: 6 in block
41.5....5.1.15.....4.1.5624351531.4. 1.2, Hidden Single: R4C2: 4 in block
41.5...65.1.15.....4.1.5624351531.4. 1.0, Hidden Single: R2C2: 6 in column
41.5...65.1.15.....461.5624351531.4. 1.2, Hidden Single: R4C3: 6 in block
41.56..65.1.15.....461.5624351531.4. 1.2, Hidden Single: R1C5: 6 in block
41.56..65.1.15...6.461.5624351531.4. 1.2, Hidden Single: R3C6: 6 in block
41.56..65.1.15.4.6.461.5624351531.4. 1.2, Hidden Single: R3C4: 4 in block
41.563.65.1.15.4.6.461.5624351531.4. 1.0, Hidden Single: R1C6: 3 in diagonal(/)
412563.65.1.15.4.6.461.5624351531.4. 1.0, Hidden Single: R1C3: 2 in row
412563365.1.15.4.6.461.5624351531.4. 1.0, Hidden Single: R2C1: 3 in block
412563365.1.15.4.62461.5624351531.4. 1.0, Hidden Single: R4C1: 2 in column
412563365.1.1534.62461.5624351531.4. 1.0, Hidden Single: R3C3: 3 in block
412563365.1.1534262461.5624351531.4. 1.0, Hidden Single: R3C5: 2 in row
412563365.1.153426246135624351531.4. 1.0, Hidden Single: R4C5: 3 in block
412563365.1.153426246135624351531.42 1.0, Hidden Single: R6C6: 2 in antidiagonal(\)
412563365.1.153426246135624351531642 1.0, Hidden Single: R6C4: 6 in block
41256336521.153426246135624351531642 1.0, Hidden Single: R2C4: 2 in column
412563365214153426246135624351531642 1.0, Hidden Single: R2C6: 4 in block

For 2nd puzzle at:
Code: Select all
2.5.6.1.65...6..5.5..6...5...66..4.5

Next step:
Hidden Text: Show
Code: Select all
2.5.6.1.65...6..5.5..6...5...66..4.5 2.6, Pointing: Cells R1C2,R2C2: 3 in block and column: -3r4c2, -3r6c2

Solution path after above next step:
Hidden Text: Show
Code: Select all
2.5.6.1.65...6..5.5..6...5...66..4.5 2.6, Pointing: Cells R1C2,R2C2: 4 in block and column: -4r4c2
2.5.6.1.65...6..5.5..6...5...66..4.5 2.6, Pointing: Cells R4C2,R4C3: 2 in block and row: -2r4c5, -2r4c6
2.5.6.1.65...6..5.5..6...5...66..4.5 2.9, Generalized Intersection: Cells R1C4,R1C6: 1 in block: -1r3c4
2.5.6.1.65...6..5.5..6...5...66..4.5 2.9, Generalized Intersection: Cells R3C1,R3C3,R4C3: 3 in block: -3r3c4
2.5.6.1.65...6.25.5..6...5...66..4.5 2.0, Direct Hidden Pair: Cells R1C4,R5C4: 1,3 in column: r3c4=2
2.5.6.1.65.2.6.25.5..6...5...66..4.5 1.2, Hidden Single: R2C6: 2 in block
2.5.6.1.65.2.6.25.52.6...5...66..4.5 1.2, Hidden Single: R4C2: 2 in block
2.5.6.1.65.2.6.25.52.6...5...66..425 1.2, Hidden Single: R6C5: 2 in block
2.5.6.1.65.2.6.25.52.6...52..66..425 1.2, Hidden Single: R5C3: 2 in block
2.5.6.1.65.2.6.25.52.6..452..66..425 1.2, Hidden Single: R5C1: 4 in block
2.5.6.1.65.236.25.52.6..452..66..425 1.0, Hidden Single: R3C1: 3 in column
2.5.6.1.65.236.25.52.6..452..66.3425 1.2, Hidden Single: R6C3: 3 in block
2.5.6.1.65.236.25.52.6..452..6613425 1.0, Hidden Single: R6C2: 1 in block
2.5.6.1.65.236425.52.6..452..6613425 1.7, Direct Pointing: Cells R1C6,R2C5: 4 of block in diagonal(/): r3c3=4
2.5.6.1.65.236425.5216..452..6613425 1.0, Hidden Single: R4C3: 1 in block
2.5.6.1.65.23642515216..452..6613425 1.0, Hidden Single: R3C6: 1 in row
245.6.1.65.23642515216..452..6613425 1.2, Hidden Single: R1C2: 4 in block
245.6.1365.23642515216..452..6613425 1.0, Hidden Single: R2C2: 3 in block
245.6.1365423642515216..452..6613425 1.0, Hidden Single: R2C5: 4 in row
245.631365423642515216..452..6613425 1.0, Hidden Single: R1C6: 3 in diagonal(/)
2451631365423642515216..452..6613425 1.0, Hidden Single: R1C4: 1 in block
2451631365423642515216..4523.6613425 1.0, Hidden Single: R5C4: 3 in column
2451631365423642515216..452316613425 1.0, Hidden Single: R5C5: 1 in block
24516313654236425152163.452316613425 1.0, Hidden Single: R4C5: 3 in column
245163136542364251521634452316613425 1.0, Hidden Single: R4C6: 4 in block
1to9only
 
Posts: 2119
Joined: 04 April 2018

Re: 2 sudoku-x 6x6 grids

Postby urhegyi » Mon Nov 09, 2020 6:01 pm

124638928_2789463477977440_5602039825232392371_n.png
124638928_2789463477977440_5602039825232392371_n.png (49.05 KiB) Viewed 28 times
Found a third one:
urhegyi
 
Posts: 96
Joined: 13 April 2020

Re: 2 sudoku-x 6x6 grids

Postby 1to9only » Mon Nov 09, 2020 6:49 pm

Code: Select all
...5.........614....265.........4... ED=2.9/1.2/1.2

I've updated Sukaku6x6Explainer which will solve this Sudoku6X.
1to9only
 
Posts: 2119
Joined: 04 April 2018


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