Flip Puzzle Online
Flip is one of the classic one-player logic games in Simon Tatham's Portable Puzzle Collection. Flip groups of squares to light them all up at once.
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Preparing the game board and controls.
Game Objective
Turn on every square in the grid. Each move toggles a small pattern of squares: lit squares turn off, and unlit squares turn on.
Flip groups of squares to light them all up at once.
How to Play
Click a square to toggle it and the neighboring squares shown by the diagram inside that square. You can also move the cursor with the keyboard and press Space or Enter to use the highlighted square.
These puzzles reward careful deduction more than speed. Start with the most constrained clues, eliminate impossible choices step by step, and avoid guessing unless the puzzle specifically calls for it.
Beginner Tips
- Read the small diagram in a square before clicking; it tells you which nearby squares will change.
- Clicking the same square twice cancels that move, because the same lights are toggled back.
- Work from corners and edges first. They have fewer neighbors, so their effects are easier to predict.
Official Rules
For the full original rules, examples, and advanced options, read Simon Tatham's official manual.
Read the official manualFrequently Asked Questions
More Logic Collection Games
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Guess
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Inertia
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Keen
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Light Up
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Loopy
Draw a single closed loop, given clues about number of adjacent edges.
Magnets
Place magnets to satisfy the clues and avoid like poles touching.