Extremely Difficult Sudoku Puzzles
Board number 71
11209 times played
Board number 113
3858 times played
Board number 116
3447 times played
Board number 133
2970 times played
Board number 140
2813 times played
Board number 142
2230 times played
Board number 153
2394 times played
Board number 164
2015 times played
Board number 168
2014 times played
Board number 181
2281 times played
Board number 198
2103 times played
Board number 208
1991 times played
Board number 248
1920 times played
Board number 255
1964 times played
Board number 289
1755 times played
Board number 302
1939 times played
Board number 306
1788 times played
Board number 326
1996 times played
Board number 328
1864 times played