http://lightforce.freestuff.gr/warehouse.php
And, Shawn, if I don’t post puzzles for a while, just start going through all of the puzzles linked to on the left side of that page. Some of them are hard!
(Use comments to point out particularly good/fun/difficult/whatever puzzles from this collection or any others–I’ve gotten us started.)
One Comment
Tilt Maze #5 on that site has a particularly evil trick to it. I love it!