Extremely Difficult Sudoku Puzzles
Board number 71
4340 times played
Board number 113
1800 times played
Board number 116
1798 times played
Board number 133
1446 times played
Board number 140
1247 times played
Board number 142
1104 times played
Board number 153
1181 times played
Board number 164
1038 times played
Board number 168
997 times played
Board number 181
1209 times played
Board number 198
1137 times played
Board number 208
992 times played
Board number 248
1083 times played
Board number 255
1040 times played
Board number 289
905 times played
Board number 302
1064 times played
Board number 306
889 times played
Board number 326
1168 times played
Board number 328
1008 times played