3
1
8
9
6
7
1
4
2
8
6
1
3
6
9
4
8
5
7
4
2
7
6
3
DifficultyExtreme
Mistakes0/3
Time00:00
Progress30%

Extreme Sudoku — The Ultimate Test

Extreme Sudoku has only 20-24 clues — minimal information, maximum deduction. Only the most skilled solvers can conquer these puzzles. Expect 60+ minute solve times.

All nine techniques in our solving techniques library will be needed. Good luck!