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Hard · Puzzle #475
8
2
1
6
4
6
5
9
2
7
6
5
1
3
6
7
3
2
5
1
6
8
9
1
5
4
Sudoku has no math — you could replace the digits 1–9 with any 9 symbols and the puzzle works identically.
Sudoku has no math — you could replace the digits 1–9 with any 9 symbols and the puzzle works identically.
"Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country." — David Hilbert
"Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country." — David Hilbert