As soon as I saw the thumbnail and description, I knew you'd managed to come up with a great idea, but I'm not sure that an endless score attack was the right execution. Playing slowly is the optimal choice, but there's no satisfaction from thinking hard about each move because all the turns are the same with no win state, and there's no push to play fast without any sort of time limit.
All that being said, the minimalist pixel art is good and fits the sort of game you've made, the control is smooth and bug-free, and I did have fun during the few rounds I played.