PlaySudoku.us
Hard · Puzzle #516
3
1
5
6
9
6
1
1
8
4
2
8
6
5
2
3
1
4
8
6
5
1
9
9
7
1
2
"If you know the enemy and know yourself, you need not fear the result of a hundred battles." — Sun Tzu
"If you know the enemy and know yourself, you need not fear the result of a hundred battles." — Sun Tzu
"I have added these principles to the law: get the knights into action before both bishops are developed." — José Raúl Capablanca
"I have added these principles to the law: get the knights into action before both bishops are developed." — José Raúl Capablanca