PlaySudoku.us
Hard · Puzzle #31
1
4
6
5
8
6
9
2
1
8
4
6
3
2
7
7
3
1
5
3
6
8
2
9
4
2
8
5
Retired architect Howard Garns, who invented the modern Sudoku, never knew it became a global phenomenon — he died in 1989.
Retired architect Howard Garns, who invented the modern Sudoku, never knew it became a global phenomenon — he died in 1989.
"Chess is the art of analysis." — Mikhail Botvinnik
"Chess is the art of analysis." — Mikhail Botvinnik