C1C2C3C4C5C6C7C8C9
R1
R2
R3
R4
R5
R6
R7
R8
R9
8
4
4
2
3
2
1
7
4
6
4
3
5
7
8
1
9
2
6
5
2
8
1
9
1
5
5
4

How to play:

Complete the board by placing the digits 1-9 in every cell in such a way that every row, column and box holds each digit only once.

Show candidates

To remove/toggle a candidate, press c and 1-9.

New Game: