The puzzle is solved when a single continuous cat trail 🐾 connects the two start tiles.
The trail cannot branch, cross or loop.
The numbers on the edge of the board indicate how many trail tiles are in the corresponding column or row.
Press and hold a tile where you want to place a trail, then drag to select a trail tile, and let go to place it.
Or tap a tile once for an ✕, then keep tapping to cycle through the six trail tiles, and once more to clear the tile.
Tap a number button on the edge of the board to add an ✕ to each empty tile in that row or column.