Back in the early 70's when the Bobby Fisher vs. Boris Spasky chess tournament had captured the world's imagination, I was one of the many who learned the game and, like many other hams, I played often on the air.  I'm thinking  of scraping some of the rust off my game and trying to get some games going on HF again.  Can anyone tell me what some good accessible chess programs for the computer would be?  When I feel a bit more confident, I'll be happy to take any interested combatants on.  Thanks.  Lou