I appreciate this! But when you send an opponent to a board that's already won, shouldn't the opponent be able to go anywhere they want? The way you coded it, this only happens if you send your opponent to a completely filled in board. Also, I'd appreciate a little indicator somewhere that tells you whose turn it is! And of course (as other people have said), online play would be transcendental.
@uberubert, your game should save between plays. Make sure that your browser or any add-ons aren't automatically deleting your cookies every time you close your browser.
Simplicity at it's best. I saw this featured on a television show (X-Play?), and thought that it would be a lot easier than it looked. It was difficult, but not frustrating enough to make me quit. 5/5, amazing game.
Although I haven't gotten all of the awards, I've read the message that you get when you win (testing priveleges ftw)....badges should be given just for that :P
Cool, endless mode. There should've been some kind of notification when you get an achievement, and there was a bug or two, but overall it's a fun game. 4/5
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Actually, he should :) That's the way to keep the player at (near) constant speed.