This game really needs an undo button – Pluszle: Brain Logic Game Review

I started playing this three days ago and enjoy this quite a bit. However the absence of an undo button is a major flaw. There have been several times already where I accidentally touched a row-end or column-end number that clears the entire line in the middle of a level 5 or 6 game, and then the solution is messed up and there is nothing I can do except restart the game.
Review by Sir Mortimer Wheeler on Pluszle: Brain Logic Game.