[hoqijlwk] Human-powered chess computer

How strong can a chess computer play whose electrical power is generated only by human physical exertion?

We imagine a tournament in which computer assistance is permitted, so long as the computer is powered solely by the player: use a mix of brains and brawn to play well.

Handicap the power generator a bit more: only arm muscles are permitted (not legs), reflecting how the game is about sitting and pushing wood.

Previously limiting the power of chess computers.

Original idea, more abstract: put a token, perhaps a heavy ball, into a chute at the top of the computer.  Using the potential energy of the ball falling, the computer computes something for you.