Game setup
Everything here changes the table behind this card as you set it.
Look
Model
5
9
1
2
3
7
2
3
9
5
8
7
3
6
6
1
2
6
8
3
9
5
5
7
4
6
3
4
5
7
1
6
2
6
2
3
4
6
2
9
5
Fill every row, column and box with 1–9.
How to play: fill the grid so that every row, every column and each of the nine 3×3 boxes holds the digits 1 to 9 exactly once. Pick a cell, then a digit from the pad or the keyboard; the numbers printed at the start are fixed. Arrow keys walk the grid and Backspace clears a cell. Every puzzle has one solution and can be reasoned out to the end — no guessing is needed. Easy, Medium and Hard differ only in how many digits you are given to start, and each keeps its own best time.
Added 30 Jul 2026Updated 1 Aug 2026
Comments 0
Nobody has said anything yet. Go first.