PlaySudoku.us
Expert · Puzzle #935
9
7
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6
4
4
8
9
6
6
7
9
5
1
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1
4
7
8
3
2
6
5
"Success is not final, failure is not fatal: it is the courage to continue that counts." — Winston Churchill
"Success is not final, failure is not fatal: it is the courage to continue that counts." — Winston Churchill
The number of essentially different Sudoku grids, accounting for symmetry, is 5,472,730,538 — about 5.5 billion.
The number of essentially different Sudoku grids, accounting for symmetry, is 5,472,730,538 — about 5.5 billion.