Exactly what I needed. Although it does seem to ruin the mechanic in the game that makes every move so unforgivable.
Yes. I spent last night without sleep trying to beat the game, everytime a silly mistake was all it took to ruin it.
Added undo, beat the game. Done away with a timesink!
love it..
BUG REPORT: undo after defeating the game doesn't remove the try again overlay but I can still play.
Thanks!
Won the game, I am over it... But yeah, pull requests/patches welcome!