Lights Out
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6–8 lights · 2–3 presses at best
Puzzles
○Unsolved✓Solved★Minimum presses
0 / 1000 Easy puzzles solved
Clear Easy boards, move history, and solved records? Start at puzzle 1. Other difficulties, settings, and puzzles are kept.
How to play
Press a light to flip it and its connected neighbours. Turn every light off. Crossing lines are not connections.
Open loop · 6 lights
Explore the mathematics