The board begins with a randomized solvable constellation of illuminated tiles.
Clicking any tile inverts its state (On/Off) and simultaneously toggles its 4 adjacent neighbors.
Corner and edge tiles only toggle their existing adjacent in-bounds neighbors.
The objective is achieved when every single light on the board has been extinguished.
💡Tactical Strategy Tips
Work systematically from top to bottom (the classic "chasing the lights" strategy).
Notice that pressing the same tile twice cancels out the move entirely.
Study symmetrical patterns: solving one quadrant often mirrors the opposite side.
🍪Privacy & Cookie Choices
We use lightweight, essential local storage tokens to preserve your board sound preferences, room sessions, and game high scores. No third-party profiling trackers or invasive advertising cookies are utilized. Read our full Privacy Policy.