Show HN: derecha.de, play logic games in the browser
derecha.de
Just play the demo if you don't want to sign up, but your performance stats won't be saved.
derecha.de
I got into a loop where I couldn't submit the correct answer, I had to keep resetting and submitting until it accepted it. I may have just brain-farted, but I'm almost positive the first puzzle has some kind of validation bug in it where it's not properly checking the answer, especially if you checked once before and got it wrong.
Otherwise, it was a decent diversion... You should work on the presentation a bit more, it looks very rough.
Hope you keep adding more puzzles, could be a useful tool for practicing problem solving
Thanks for following up - best of luck