[crawftv]

With advancements in saved/pretrained models I think answer is or will be a raspberry pi. I think a more interesting question is “what is the smallest computer that can learn chess”

[stackola]

I'm sure there's a smaller computer than a raspberry pi that can beat any human in chess.

[mokus]

It would be interesting to try to do it with the minimum possible power consumption. Would a small power-optimized ARM microcontroller such as an STM32L4 with some bulk storage be sufficient, for example? Could a device pulling < 100 mW beat a human grand master? 10 mW?

[tim333]

The one that beat Kasparov in 1997 could evaluate 200 million positions per second which is quite a lot. On the other hand beating me could probably be done with a modified pocket calculator.

[darkpuma]

When I was a kid I had a TI-83+ with a chess engine that could whoop my ass. Zilog z80 at 6MHz, a few KB of ram. Of course, I sucked at chess...