I don't think I'll have enough interest to beat all 1000 levels, but I can crash the game reliably: 1. Slide a block off the board where it starts wiggling.

I don't think I'll have enough interest to beat all 1000 levels, but I can crash the game reliably: 1. Slide a block off the board where it starts wiggling. 2. Attempt to slide it back. 3. Press Undo. Crashes the game every time for me.