Cross Stitch

Goal Stitch the whole picture with the spools of thread.

1. Tap the front spool of a line to send it around the hoop.
2. On every row and column it passes, it stitches the nearest open square, if that square is its color. Other colors block the squares behind them.
3. A spool with thread left waits on a pin. Tap it to send it again.
4. There are just enough pins, so plan which spool waits and when. If a spool needs a pin and none is free, tap Undo.
5. Fewer undos, more stars.