LIGHTS-OUT

Level 02 · Third State. Cells now hold three states, so pressing twice no longer cancels. It takes three.

1. 01Tap any cell. It advances itself and the four cells touching it by one.
2. 02Values run 0, 1, 2, then wrap back to 0. Every cell must end on 0.
3. 03Order still never matters. Only which cells you press, and how many times.