This is an incredibly difficult game without a pen and paper, so I'll admit I didn't complete it. Once I understood the concept, I honestly got tired of trying to memorize all the symbols. That said, the presentation here is great, and the idea overall would be a wonderful puzzle inside a game, were it cut down in size a little. Perhaps only 3 columns and 3 rows, much less to memorize. Maybe even introduce two rows first, and then progressively build up to five as the player has time to learn the new symbols. All in all a really well presented puzzle game nonetheless! Thanks for making us all a game!