Very impressive, I'd been thinking of something similar. In playing it in Stella, I frequently get into a "no move" situation where the grid looks like 2

Very impressive, I'd been thinking of something similar. In playing it in Stella, I frequently get into a "no move" situation where the grid looks like 2 8 16 2 4 128 2 4 16 64 8 8 4 16 4 _ Based on this config, I should be able to move right to collapse the two 8s, but no input it being allowed. I suspect it's a bug in the "NEW RANDOM TILE" code not allowing that last cell to be selected for a new item, since in the Stella debugger, memory at A8 is stuck with value 3. Update: https://github.com/chesterbr/2048-2600/pull/2 https://github.com/chesterbr/2048-2600/pull/2