Extremely Difficult Sudoku Puzzles
Board number 71
19669 times played
Board number 113
6310 times played
Board number 116
5370 times played
Board number 133
4753 times played
Board number 140
4725 times played
Board number 142
3729 times played
Board number 153
3775 times played
Board number 164
3310 times played
Board number 168
3271 times played
Board number 181
3795 times played
Board number 198
3208 times played
Board number 208
3408 times played
Board number 248
3148 times played
Board number 255
3172 times played
Board number 289
2765 times played
Board number 302
3071 times played
Board number 306
2943 times played
Board number 326
3182 times played
Board number 328
3090 times played