Really great idea! And well executed! As there is a very obvious best strategy, would be interesting if there are ways to make this a bit more challenging. (maybe like placing random stones on the field?) But that said, even knowing the strategy and then executing it are 2 different things. Had quite some fun with that!
Some other notes:
- Might be just imagining things, but sometimes felt that the game went slightly out of sync. Like, that a move just took ever so slightly longer. But this is in such a game of course still very important, as quite percise inputs are needed and you are relying on the rhythm
- It was hard for me to figure out when the best time to input a key is. Or maybe it was more that I was unsure if my key registered on my button press. One idea that comes to my mind is to make the snake look in a direction immediately on key input (so even before the move), so you are at least certain that this worked.
Overall really nice, art and music is also great :D