FAQ

No. Luna AI is an in-game simulated opponent: it plays every level with human-like timing and accuracy (fast on small grids, slower and more error-prone on 9×9), so no picture ever leaves the game. It still makes mistakes, and you still race the same clock.

Yes. Every level is a race against Luna AI, our in-game simulated opponent. You both get the same picture at the same moment; tap the odd cell before it does.

Yes, free with no signup. It runs in your phone or desktop browser. Everyone gets 3 runs a day; they come back at 00:00 UTC.

By the highest level reached; ties share a rank.

If the AI can't answer in time the level still counts for you.