Needs an undo button

The game is great and highly addictive but it needs an undo button. Sometimes the tiles accidentally move into places that users dont want. In situations like this it costs the player a move. Also at times a word is formed before the desired length is achieved So introducing an undo button even with limited number of uses would benefit the gaming experience

Nejdetarikoglu about W.E.L.D.E.R., v1.01