Knot Untangle is a calm, satisfying planarity puzzle. A web of dots is joined by strings that cross all over each other. Drag the dots to new places until no two strings cross — crossing strings are drawn red and dashed, and the dots at their ends glow gold, so you can always see what still needs fixing. Every puzzle is built from a set of straight lines, so a crossing-free arrangement is always possible. Twelve knots grow from 6 dots to 36. Fewer moves earn more stars; a hint moves the most tangled dot into a good spot, at the cost of two moves.
How to play Knot Untangle
Goal: Arrange the dots so that no two strings cross.
Keyboard & mouse
- Drag a dot with the mouse
- N / B (or ] / [) select the next / previous dot; arrows move it (Shift for bigger steps)
- H for a hint; P or Escape to pause
Phone & tablet
- Drag dots with your finger
- Tap Hint if you get stuck
Rules
- Drag any dot; its strings stretch along with it.
- Red dashed strings are crossing another string; gold dots are at the ends of them.
- The puzzle is solved the moment no strings cross.
- Each drag counts as one move. Use no more moves than there are dots for three stars.
- A hint moves one dot (+2 moves) and costs a star.
Tips and strategy
- Start by pulling the dots with the most strings to the middle.
- Build the outline first, then tuck the rest inside.
- Triangles of three dots can never cross themselves — use them as anchors.
