🚧 In development

Number puzzles, in peace.

Cross out pairs of numbers until the board is empty — equal digits or sum ten. No timer, no ads, no way to lose. Fully offline.

Follow along on GitHub arrow_forward
Daily KnobelScore 240 · Target 610
7
3
1
9
1
4
5
2
8
6
3
5
2
8
9
6
1
4
2
7
4
9
6
3
8
5
2
9
1
8
6
7
3
5
4
2
add Add rows 3 lightbulb Hint 2 undo Undo

The idea

The puzzle you know — without everything that grates.

calendar_month

Three modes

Free play with your own rules, the Daily Knobel (one board a day — the same for everyone, and missed days wait patiently) and a 50-level adventure.

spa

No pressure

No timer, no losing, no ads between moves. Hints never cost points, and Undo takes back any move — as far as you like.

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Challenge someone

Same board, same rules, your score as the target — shared as a QR code or link. No account, no server.

visibility

For all eyes

Dark and light, text scaling up to 200 %, typefaces for dyslexia and low vision — and the digits are huge anyway.