The core idea is fine! I didn't understand why my movements became more and more limited over the game (After 2 or 3 moves, I could only go in 2 directions.. bug or feature ?)
I believe that is a bug with the browser version of the game. Sorry about that! I've since taken down the browser version, as I don't want people misled by the bugs.
The tactical-based puzzler was a pretty nice take on the theme, since the majority of games I tested so far are physical-skill (shooting, placement, avoiding, reacting) oriented ;)