Switchboard
Turn out the lights by thinking a few moves ahead.
Example
Example
4 boards · No timer
Switchboard
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Try againOn by default unless you turn it off. Saved choices are kept. Shares starts, completions, replays and error categories. For ChatGPT visits, starts and completions may include the first QuickenBrain page and country. No answers, drawings or names.
How this data is usedHelp
Pressing a tile flips it and its neighbors above, below, left and right. Turn every light off. All presses count, including before undo or reset. Hints stay recorded. Each board is solvable; the shortest count is calculated exactly.
About this practice
Turn out the lights by thinking a few moves ahead.
Report a problem
On by default unless you turn it off. Saved choices are kept. Shares starts, completions, replays and error categories. For ChatGPT visits, starts and completions may include the first QuickenBrain page and country. No answers, drawings or names.
How this data is used