CalcoTools Games

Knot Free

Untangle a web of dots and lines by dragging the dots until no two lines cross. Pick 6 to 12 dots and every puzzle is a new random tangle.

How to play

  1. Dots are joined by lines. Lines that cross are drawn in red and the dots on them glow orange.
  2. Drag a dot to a new spot, or select it with Tab and move it with the arrow keys (hold Shift for small steps).
  3. Keep going until the Crossings counter reaches zero. Every puzzle can be untangled.
  4. Stuck? Press Hint to snap the dot that is furthest from a working position into place.

Tips and strategy

  • Start with the dots that have the most red lines and move them to the outside edge.
  • Dots with only two lines are easy to move out of the way, so deal with them last.
  • Try to move as few dots as possible. Your fewest moves for each size is saved as your best.
  • A solved puzzle can often be made tidier by sliding dots away from the lines they sit close to.

FAQ

Can every puzzle be solved?
Yes. Each puzzle is built from a layout with no crossings, then scattered, so at least one solution always exists.
Do hints count against my best?
A puzzle that uses a hint is solved but doesn't set a new best, so your records stay honest.
Does it work on a phone?
Yes. Touch and drag a dot to move it. The board scales to your screen width.