That's pretty neat! Some comments: - Description of "copper cell", "on or two" -> "one or two" - Level 2, "this is for Dummies". You really should not be ins

That's pretty neat! Some comments: - Description of "copper cell", "on or two" -> "one or two" - Level 2, "this is for Dummies". You really should not be insulting your players, if I'd been playing for fun rather than in the spirit of giving feedback, I probably would have closed down the game at this point. - I think this needs more time controls than just a single "play" button. A typical setup would be: play, pause, single-step, reset - The visual effect for "cell that the player has placed" is a bit too subtle. - A level number or name should be displayed somewhere. - I don't know where the level design goes later on (only up to the XOR gate). But I wonder if it would make sense to highlight the goals of the puzzle on the board, rather than have it be in text descriptions?