Zaplink

Zaplink is a small grid puzzle. Drag from a colored dot to its twin without crossing other lines, until every cell on the board is part of some path. The grid size is configurable from 5×5 up to 10×10.

Start a drag on a colored endpoint and release on its matching twin. Lines cannot cross. The whole board must end up filled. Each new drag counts as one move; every move past the minimum costs 10 penalty seconds.