Untangle Puzzle Online
Untangle is one of the classic one-player logic games in Simon Tatham's Portable Puzzle Collection. Reposition the points so that the lines do not cross.
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Preparing the game board and controls.
What This Game Is
Untangle is a self-contained logic puzzle built around one clear objective. Each new board gives you a fresh problem to solve, so it works well for quick sessions and repeated play.
Reposition the points so that the lines do not cross.
How to Play
To move a point, click on it with the left mouse button and drag it into a new position. The cursor keys may also be used to navigate amongst the points. Pressing the Enter key will toggle dragging the currently-highlighted point. Pressing Tab or Space will cycle through all the points.
Most puzzles in this collection reward deduction more than speed. Focus on the most limited choices first, use the clues to narrow the board, and avoid guesses unless the puzzle mode clearly expects them.
Beginner Tips
- Start with the area that has the strongest clue or the fewest legal options.
- Use marks, notes, or temporary indicators if the puzzle supports them.
- Try to preserve flexibility instead of committing too early when multiple moves look possible.
- If the board gets messy, restart a fresh puzzle and apply what you learned from the first run.
Official Reference
If you want the full original rule explanation, examples, and advanced options, the official manual is the best reference.
Read the official manualFrequently Asked Questions
More Logic Collection Games
Black Box
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Bridges
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Cube
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Dominosa
Tile the rectangle with a full set of dominoes.
Fifteen
Slide the tiles around to arrange them into order.
Filling
Mark every square with the area of its containing region.
Flip
Flip groups of squares to light them all up at once.
Flood
Turn the grid the same colour in as few flood fills as possible.