fly-chess (backprop vs dopamine)

Two ways of making the MaleCNS wiring play chess, built so they can be compared. One keeps every connection's place and sign but trains its strength with backprop on Lichess positions; the other freezes the measured brain and lets only the mushroom body change under dopamine. The board enters through photoreceptors binned into an eight by eight grid of the eye, spreads for twelve steps, and is read out of the descending neurons. A sliced custom sparse gradient keeps a ten-million-connection backward pass in 8 GB. Shuffled-wiring and lesion controls are flags, but no strength is measured yet.

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#chess#backprop#dopamine#mushroom-body#lesion#shuffled-control#tensorflow#malecns