The New Sudoku Players' Forum

[tarek]

Great. I didn't have time to access my Gattai solver. All resources are now on single grid variants

tarek

[m_b_metcalf]

tarek, thanks for confirming that result. Did you also check my claim that the puzzle is minimal (I have my doubts)?

Confirmed as minimal (with my DLX solver).

Thanks. I've now discovered the bug/feature that led me to think otherwise.

Mike

[Mathimagics]

Here is a minimal Samurai SudokuP puzzle with an empty central grid:

Code: Select all

.................................................................................
8.....64..1.....32..9....8.......2.......1......7....6167........4........2......
.62.45...8.........3..9.....93.....8..........................1......7.3...4..8.2
........5.......3....6.9...6.4..2.....7....1.59..............9...23......4......6
4.........79........5.82.....4.....7.2.............4..1......98.....814........6.


Note: line 1 is the central grid, obviously. The 4 x corner grid puzzles start with the top-left and proceed clockwise.

Puzzle (grid view): Show

Code: Select all

8 . . . . . 6 4 .       . 6 2 . 4 5 . . .
. 1 . . . . . 3 2       8 . . . . . . . .
. . 9 . . . . 8 .       . 3 . . 9 . . . .
. . . . . . 2 . .       . 9 3 . . . . . 8
. . . . . 1 . . .       . . . . . . . . .
. . . 7 . . . . 6       . . . . . . . . .
1 6 7 . . . . . . . . . . . . . . . . . 1
. . 4 . . . . . . . . . . . . . . . 7 . 3
. . 2 . . . . . . . . . . . . 4 . . 8 . 2
            . . . . . . . . .           
            . . . . . . . . .
            . . . . . . . . .
4 . . . . . . . . . . . . . . . . . . . 5
. 7 9 . . . . . . . . . . . . . . . . 3 .
. . 5 . 8 2 . . . . . . . . . 6 . 9 . . .
. . 4 . . . . . 7       6 . 4 . . 2 . . .
. 2 . . . . . . .       . . 7 . . . . 1 .
. . . . . . 4 . .       5 9 . . . . . . .
1 . . . . . . 9 8       . . . . . . . 9 .
. . . . . 8 1 4 .       . . 2 3 . . . . .
. . . . . . . 6 .       . 4 . . . . . . 6


Solution: Show

Code: Select all

8 7 3 5 1 2 6 4 9       1 6 2 8 4 5 9 3 7
5 1 6 8 4 9 7 3 2       8 4 9 1 3 7 5 2 6
2 4 9 6 3 7 5 8 1       7 3 5 2 9 6 1 8 4
7 3 1 9 8 6 2 5 4       6 9 3 5 1 4 2 7 8
6 2 8 4 5 1 9 7 3       4 7 8 9 6 2 3 1 5
4 9 5 7 2 3 8 1 6       5 2 1 3 7 8 6 4 9
1 6 7 3 9 8 4 2 5 1 9 7 3 8 6 7 2 9 4 5 1
3 8 4 2 6 5 1 9 7 3 8 6 2 5 4 6 8 1 7 9 3
9 5 2 1 7 4 3 6 8 4 5 2 9 1 7 4 5 3 8 6 2
            5 4 9 6 1 8 7 3 2
            7 1 3 9 2 5 6 4 8
            2 8 6 7 4 3 5 9 1
4 8 2 6 7 3 9 5 1 2 7 4 8 6 3 4 7 1 9 2 5
6 7 9 4 5 1 8 3 2 5 6 1 4 7 9 8 2 5 6 3 1
3 1 5 9 8 2 6 7 4 8 3 9 1 2 5 6 3 9 8 7 4
8 6 4 5 2 9 3 1 7       6 3 4 1 5 2 7 8 9
9 2 3 7 1 4 5 8 6       2 8 7 9 6 4 5 1 3
7 5 1 8 3 6 4 2 9       5 9 1 7 8 3 4 6 2
1 3 6 2 4 5 7 9 8       3 1 6 5 4 8 2 9 7
2 9 7 3 6 8 1 4 5       7 5 2 3 9 6 1 4 8
5 4 8 1 9 7 2 6 3       9 4 8 2 1 7 3 5 6