Pure logic
All 500 machine-verified levels have exactly one solution, and you can always reach it by reasoning. One panda is already placed when a level starts.
Colordoku
A Queens-style logic puzzle. Place a panda in every row, every column and every colour zone, and never let two pandas touch. Every level can be solved by deduction alone.
All 500 machine-verified levels have exactly one solution, and you can always reach it by reasoning. One panda is already placed when a level starts.
Stuck? Hint explains the next logical step in words: which row has only one cell left, which colour is trapped in a column. Find a panda reveals one outright.
A fresh 9×9 puzzle every day, the same for everyone. Finish it for a trophy and keep your streak going.
Tap to mark an X, double-tap to place a panda (or switch the two). Light and dark themes, ten languages, and no network needed.
The whole rulebook fits in three lines.