Chess programs for any HP calculator

[Ángel Martin]

There's a Chess Module for the 41 that includes chess-related material, including a Chess Playing program (8x8 board) written by Claude Roeltgen. You can check the user guide at TOS and download the module there as well.

The program has four levels of play, the first two are trivial, the third is ok but level four it's decent. It plays slow but that's partially solved by TURBO mode of course.