Uploaded January 2017 | Updated September 2026, 1 hour ago

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I'm playing Toledo Atomchess 6502 (1K graphical chess plus AI) over emulation here. In the first step I show the source code at left from top to bottom and then I start playing, I manage to do a gross mistake and the CPU proceeds to defeat me piece by piece.

Play it at 720P60 so the flicker looks good :) in the other formats Youtube eats an important alternate frame.

This game is also an entry for the Hackaday 1K challenge.

Toledo Atomchess 6502: github.com/nanochess/Atomchess-6502
8bitworkshop.com (Atari 2600 emulator): 8bitworkshop.com
Hackaday 1k challenge: hackaday.io/contest/18215-the-1kb-challenge