The New Sudoku Players' Forum

by **urhegyi** » Mon Feb 15, 2021 4:37 pm

I wondered if the combination of a jigsaw layout with a windoku X was possible.
Below you can see the answer:

Code: Select all: #1/WX/B4,JS ...4.2......8.4................3....4.......5....5................6.8......7.9... 666655777666557777665555727881151222888111222888141122989444433999944333999443333

Analyze log:

Code: Select all: Eliminated candidates per Method and per Sudoku Method \ Sudoku | SER | 1 |-------|------ Not counted elims | 0 | 96 Naked Singles | 0.1 | 6 Hidden Singles | 0.2 | 160 Naked Pair [2] | 3 | 10 Naked Triple [3] | 3.6 | 13 Hidden Quad [5] | 5.4 | 3 Locked Singles[2] | 2.8 | 90 Locked Singles[3] | 2.9 | 4 Locked Singles[4] | 3 | 5 Locked Singles[5] | 3.1 | 4 WXYZ Wing [4] | 5.5 | 1 VWXYZ Wing [5] | 6.3 | 2 UVWXYZ Wing [6] | 6.6 | 1 |-------|------ Eliminated Cand's | 395 | 395 Sum(SER * Cand's) | 441.3 | 441.3 Initial Candidates : 395 Maximum SER rating : 6.6 - Approach Labour rating : 441.3 - Experimental rating

solution:

Hidden Text: Show

by **urhegyi** » Mon Feb 15, 2021 4:53 pm

Another example:

Code: Select all: #1/WX/B4,JS ....9....5.......1....7..............3..8..6..............4....3.......7....2.... 666655777666557777665555727881151222888111222888141122989444433999944333999443333

analyze log:

Code: Select all: Eliminated candidates per Method and per Sudoku Method \ Sudoku | SER | 1 |-------|------ Not counted elims | 0 | 167 Naked Singles | 0.1 | 47 Hidden Singles | 0.2 | 106 Naked Pair [2] | 3 | 14 Naked Triple [3] | 3.6 | 2 Locked Singles[2] | 2.8 | 47 Locked Singles[3] | 2.9 | 9 Locked Singles[4] | 3 | 15 Locked Singles[5] | 3.1 | 4 Turbot-fish [4] | 4.2 | 5 |-------|------ Eliminated Cand's | 416 | 416 Sum(SER * Cand's) | 311.2 | 311.2 Initial Candidates : 416 Maximum SER rating : 4.2 - Approach Labour rating : 311.2 - Experimental rating

solution:

Hidden Text: Show

by **Hajime** » Mon Feb 15, 2021 5:28 pm

Well done. Only 11 givens. 8 is the absolute minimum...

by **urhegyi** » Mon Feb 15, 2021 6:16 pm

Also possible with Moonlotus JS and windoku X:

Code: Select all: #1/WX/B4,JS ............7.8............2.8...4.5.........9.6...3.2............3.1............ 112222233111222333411123336441555366444555666447555966477789996777888999778888899

analyze log:

Code: Select all: Eliminated candidates per Method and per Sudoku Method \ Sudoku | SER | 1 |-------|------ Not counted elims | 0 | 101 Naked Singles | 0.1 | 6 Hidden Singles | 0.2 | 139 Naked Pair [2] | 3 | 3 Naked Triple [3] | 3.6 | 3 Naked Quad [4] | 5 | 18 Hidden Pair [7] | 3.4 | 15 Locked Singles[2] | 2.8 | 89 Locked Singles[3] | 2.9 | 11 Locked Singles[4] | 3 | 12 Locked Singles[5] | 3.1 | 2 TUVWXYZ Wing [7] | 7.5 | 2 Turbot-fish [4] | 4.2 | 2 |-------|------ Eliminated Cand's | 403 | 403 Sum(SER * Cand's) | 535.9 | 535.9 Initial Candidates : 403 Maximum SER rating : 7.5 - Approach Labour rating : 535.9 - Experimental rating

solution:

Hidden Text: Show

by **urhegyi** » Mon Feb 22, 2021 2:36 pm

Can this rating from SisesuSo be confirmed by SE?

Code: Select all: #1/WX/B4,JS 7.......3....................61.92.....9.3.....32.48....................5.......6 112222255111222555111125555666649999666444999766444998777434888777333888773333388

Code: Select all: Eliminated candidates per Method and per Sudoku Method \ Sudoku | SER | 1 |-------|------ Not counted elims | 0 | 137 Naked Singles | 0.1 | 58 Hidden Singles | 0.2 | 27 Naked Pair [2] | 3 | 8 Naked Triple [3] | 3.6 | 2 Naked Quad [4] | 5 | 3 Hidden Quad [5] | 5.4 | 13 Hidden Triple [6] | 4 | 1 Locked Singles[2] | 2.8 | 68 Locked Singles[3] | 2.9 | 4 Locked Singles[4] | 3 | 7 XYZ Wing [3] | 4.4 | 1 VWXYZ Wing [5] | 6.3 | 1 UVWXYZ Wing [6] | 6.6 | 2 TUVWXYZ Wing [7] | 7.5 | 4 STUVWXYZ Wing [8+] | 8 | 1 XY-Wing [3] | 4.1 | 1 |-------|------ Eliminated Cand's | 338 | 338 Sum(SER * Cand's) | 420.6 | 420.6 Initial Candidates : 338 Maximum SER rating : 8 - Approach Labour rating : 420.6 - Experimental rating

by **urhegyi** » Mon Feb 22, 2021 3:44 pm

Or the symmetrical equivalent of the last posted layout:

Code: Select all: #1/WX/B4,JS ....9........3........8......4...2..8..243..5..6...7......7........6........2.... 332222244333222444333121444355111664555111666555516666777789999777888999778888899

Code: Select all: Eliminated candidates per Method and per Sudoku Method \ Sudoku | SER | 1 |-------|------ Not counted elims | 0 | 137 Naked Singles | 0.1 | 54 Hidden Singles | 0.2 | 60 Naked Single [1] | 2.5 | 3 Naked Pair [2] | 3 | 10 Naked Triple [3] | 3.6 | 6 Naked Quad [4] | 5 | 6 Locked Singles[2] | 2.8 | 47 Locked Singles[3] | 2.9 | 13 Locked Singles[4] | 3 | 8 Locked Singles[5] | 3.1 | 1 Turbot-fish [4] | 4.2 | 9 |-------|------ Eliminated Cand's | 354 | 354 Sum(SER * Cand's) | 340.7 | 340.7 Initial Candidates : 354 Maximum SER rating : 5 - Approach Labour rating : 340.7 - Experimental rating

Jigsaw layout and windoku X