Extremely Difficult Sudoku Puzzles
Board number 71
19813 times played
Board number 113
6351 times played
Board number 116
5401 times played
Board number 133
4775 times played
Board number 140
4751 times played
Board number 142
3744 times played
Board number 153
3797 times played
Board number 164
3323 times played
Board number 168
3283 times played
Board number 181
3819 times played
Board number 198
3227 times played
Board number 208
3437 times played
Board number 248
3162 times played
Board number 255
3186 times played
Board number 289
2783 times played
Board number 302
3096 times played
Board number 306
2965 times played
Board number 326
3200 times played
Board number 328
3116 times played