sudoku25 = Dict(
:89 =>
    [
    11 23 13 10 19 16  6  2 24  7  5  9  1 20 17 15  8 18 25  3  4 12 21 22 14;
    15 16  0 22  0 11  8  0  0  0 25  0 14  0  0  0 12 19  0  0 17  0  0  0  0;
    0  0  0  0  0  0  0  0  0  0  0 16  0  4  0 17  0 13  0 24  0 23 19 10  2;
    0  0  0  0  0 19  0 14 23  4  0 21  6 22 10  0 11  0  2  0  0  0  0  0  0;
    17 14  0  0  2  0  0 13 12  0  0  0  0  0 15  4 20 22 10  0 11  0  9 24  8;
    22  0  0  0  0  6  2  0  0  0  4  7 12  1  9  0  0  0  0  0  0 14  5  0  0;
    0 18  2  0  8 22  0 19 16 21  0  0  0 10 13 23  0  0 20  0  0  3  0 15  7;
    0  0 17  3  0  5  0  0  8  9  0  0  0  0 18  0 19  0  0  0  0  0 23 21  0;
    1 11  0  0  9  0 15 10 25  0  6  0 23  0  0  0  0  5  3  7  0 17  0  0 24;
    0  0  0  0  0  0  1  0  0 23  0  0  0 24  0  0  0 21 12  0  6  8  0 25 16;
    20 24 10  0 15 23 11 17  0  0  0  0  0  7  0 12  0  0  0  0  0 22  0  0  6;
    4  5  0 14 12 25  0 18  0  0 23  0 15  0 19  1  0  0  0 22 20  0  7  9  0;
    18  0 21  0  0  8  0 24  0  0  9  0 25  0  0  0 10  0  0  0  2  0  1 19  0;
    0  0  6  2  1  0 13  0 22  0  0  0  0  0 11  8 21 16  0  0 25  0  0 12 17;
    0 17 25  0 23  7 14  0 21  1  0  0  0  0  3  0  0 11  0  0 24  0 16  4  5;
    0  0  0  0 11 18 24  0  0  0  0  5  0 12  0 25  0  0  0 15 23  4  8 14  0;
    0  0  0 15 21  0  0  0  0  0  2  0 13 17  0  0  1  7  0  0  5  9 24  0  0;
    0  0 18  0 22 15  0  0  2 16  0 23  0  0  0 10  6 24  0 17 12  0 25 11  0;
    7  2  0  1  0  0 21  0  0  0 18 22  0  9  6 14  0  4  5 16  0  0  0  0  0;
    0  0  9  0  0  0  7 22  0  0 10  0 24  0  0  0 18  0  0  0 21  0  0  0  0;
    0 12  0 19 10  0  0  0  0  0  0  0  0  0  1  0  0  0  0  0 14  0  4  8  0;
    24  0 11 18  0  0  0  0  0  0  0 25 17 21  0  6  0  0  1  0  0  0  0  5 12;
    16  6 22  0  0  0 23  4 15 18  8  0  0  0 20  0  0 17  0 14  0  0  0  0  0;
    0 21  0  0  4  0  9  1  7  0  0  0  0 11 14  0 16  8 15  0 22  0 18  0  0;
    8 15  0  0  0  0  0  0  5  0 24  3  0  0  4  0  0  0  9  0  0  0  0  0 20;
    ],

:90 =>    
    [
        0 23 13  0 19 16  6  0 24  7  5  9  1  0  0 15  8 18 25  0  4  0 21 22  0;
       15 16  0 22  0 11  8  0  0  0 25  0 14  0  0  0 12 19  0  0 17  0  0  0  0;
        0  0  0  0  0  0  0  0  0  0  0 16  0  4  0 17  0 13  0 24  0 23 19 10  2;
        0  0  0  0  0 19  0 14 23  4  0 21  6 22 10  0 11  0  2  0  0  0  0  0  0;
       17 14  0  0  2  0  0 13 12  0  0  0  0  0 15  4 20 22 10  0 11  0  9 24  8;
       22  0  0  0  0  6  2  0  0  0  4  7 12  1  9  0  0  0  0  0  0 14  5  0  0;
        0 18  2  0  8 22  0 19 16 21  0  0  0 10 13 23  0  0 20  0  0  3  0 15  7;
        0  0 17  3  0  5  0  0  8  9  0  0  0  0 18  0 19  0  0  0  0  0 23 21  0;
        1 11  0  0  9  0 15 10 25  0  6  0 23  0  0  0  0  5  3  7  0 17  0  0 24;
        0  0  0  0  0  0  1  0  0 23  0  0  0 24  0  0  0 21 12  0  6  8  0 25 16;
       20 24 10  0 15 23 11 17  0  0  0  0  0  7  0 12  0  0  0  0  0 22  0  0  6;
        4  5  0 14 12 25  0 18  0  0 23  0 15  0 19  1  0  0  0 22 20  0  7  9  0;
       18  0 21  0  0  8  0 24  0  0  9  0 25  0  0  0 10  0  0  0  2  0  1 19  0;
        0  0  6  2  1  0 13  0 22  0  0  0  0  0 11  8 21 16  0  0 25  0  0 12 17;
        0 17 25  0 23  7 14  0 21  1  0  0  0  0  3  0  0 11  0  0 24  0 16  4  5;
        0  0  0  0 11 18 24  0  0  0  0  5  0 12  0 25  0  0  0 15 23  4  8 14  0;
        0  0  0 15 21  0  0  0  0  0  2  0 13 17  0  0  1  7  0  0  5  9 24  0  0;
        0  0 18  0 22 15  0  0  2 16  0 23  0  0  0 10  6 24  0 17 12  0 25 11  0;
        7  2  0  1  0  0 21  0  0  0 18 22  0  9  6 14  0  4  5 16  0  0  0  0  0;
        0  0  9  0  0  0  7 22  0  0 10  0 24  0  0  0 18  0  0  0 21  0  0  0  0;
        0 12  0 19 10  0  0  0  0  0  0  0  0  0  1  0  0  0  0  0 14  0  4  8  0;
       24  0 11 18  0  0  0  0  0  0  0 25 17 21  0  6  0  0  1  0  0  0  0  5 12;
       16  6 22  0  0  0 23  4 15 18  8  0  0  0 20  0  0 17  0 14  0  0  0  0  0;
        0 21  0  0  4  0  9  1  7  0  0  0  0 11 14  0 16  8 15  0 22  0 18  0  0;
        8 15  0  0  0  0  0  0  5  0 24  3  0  0  4  0  0  0  9  0  0  0  0  0 20;
       ]
)