Great puzzle game! Love the buttons. My only feedback is the other part of the UI: It was hard to find which pawn i was selecting(maybe you could also select from the board) and that I was constantly trying to put the pawn before the action, this one may only be me though. I think its because in spanish (and english too, I think) you usually say the subject before the action ("Mable turned right") so while I was thinking the puzzles the solutions came out of my head in that format.
That nitpick aside I had a fun time with your game!