Battle Chess 4000 Battle Chess 4000, $60 list, is the latest version of Interplay's animated chess program for the IBM. It runs with Super VGA color only, and you need 13Mb of disk space. For those of you unfamiliar with Battle Chess, the pieces move by normal rules and then give battle for contested squares on the board. (Though the action is fast and furious, the winner and loser are decided by the rules of the game.) In a way Battle Chess mirrors the use of living pieces in games played at court in the Renaissance and late Middle Ages. Earlier versions of the program reflected that even more closely by using animated medieval figures -- yeomen, bishops, knights in armor, etc. -- who fought each other with sword, ax and morning star. But times change, eh? Battle Chess 4000 uses figures from outer space. Bishops are mad scientists, knights are space rangers and aliens with blasters, and the queen is a refugee from Amazon Women on the Moon. The board is a space station. Animation is a process often called Claymation and popularized by the California Raisins TV commercial. Levels of play go from novice to grand master. If you think a desktop computer can't match strides with a chess grand master, you've been out of town for a while. New programs, such as this one and ChessMaster 3000 from Software Toolworks, are able to beat grand masters. They're also surprisingly popular: Both appear regularly on the top 10 list for entertainment sellers. Battle Chess 4000 has more than 300,000 opening moves. In a twist that is definitely unfair to humans, the program will add your moves to its data bank if it thinks they are particularly clever. It's true that people have larger data banks than any computer, but our retrieval system has some glitches. Oh well, that's the way the galaxy turns.