Sudoku No. 99
7
9
2
6
4
1
7
9
6
8
1
8
2
4
6
4
3
2
1
8
4
5
7
6
4
7
Fill every empty square with a digit from 1 to 9.
Each row, each column and each of the nine 3×3 boxes contains every digit exactly once.
The printed digits are fixed. Every puzzle has one solution and never needs a guess.
Sudoku No. 99, trickyPoint Paper, /sudoku/99