H5 play is live
Yarn Knot now plays in the browser at /play/ with twenty bundled untangle boards and no account requirement.
AsobiPlaza Next-20
Yarn Knot
Drag movable knot pins into authored slots and zones until every straight yarn strand has zero crossings.
Tactile spatial logic
The first slice avoids rope physics and uses locked pins, movable pins, snap slots, and zone constraints.
Clear every crossing
Preview moves, reduce the crossing counter, and submit only when every authored constraint passes.