PlaySudoku.us
Medium · Puzzle #474
4
8
1
5
6
2
3
1
7
5
4
1
3
2
8
1
5
4
9
2
8
1
5
9
9
6
1
4
1
6
3
"Mathematics is the art of giving the same name to different things." — Henri Poincaré
"Mathematics is the art of giving the same name to different things." — Henri Poincaré
"Candidates must be mentally prepared for every new game as if it were the last." — Mikhail Botvinnik
"Candidates must be mentally prepared for every new game as if it were the last." — Mikhail Botvinnik