Extremely Difficult Sudoku Puzzles
Board number 71
9601 times played
Board number 113
3441 times played
Board number 116
3044 times played
Board number 133
2631 times played
Board number 140
2362 times played
Board number 142
1898 times played
Board number 153
2120 times played
Board number 164
1772 times played
Board number 168
1800 times played
Board number 181
2080 times played
Board number 198
1906 times played
Board number 208
1776 times played
Board number 248
1743 times played
Board number 255
1787 times played
Board number 289
1594 times played
Board number 302
1748 times played
Board number 306
1597 times played
Board number 326
1824 times played
Board number 328
1663 times played