Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!watmath!clyde!rutgers!ames!ucbcad!ucbvax!ucdavis!egg-id!ui3!dickow From: dickow@ui3.UUCP Newsgroups: comp.sys.cbm Subject: Re: chess programs Message-ID: <60015@ui3.UUCP> Date: Fri, 23-Jan-87 23:40:09 EST Article-I.D.: ui3.60015 Posted: Fri Jan 23 23:40:09 1987 Date-Received: Mon, 26-Jan-87 01:36:44 EST References: <285@oswego.UUCP> Organization: MRC, University of Idaho Lines: 35 A comment from Richard Kinne about a statement of mine... >>In article <60009@ui3.UUCP> dickow@ui3.UUCP writes: >> >>...and once it [ChessMaster 2000] castled when the rook was threatened, >>which I beleive is against standard rules. >> >>Bob Dickow, University of Idaho School of Music > Actually, the ruling for castling is that you cannot castle when your >KING is threatened. Your rook has nothing to do with it. You also cannot >castle accross check meaning if your KING has to cross a threatened sqaure >you cannot castle. ...... Boy, is MY face red! After playing chess for years, I have discovered one more subtlety of the game. Thanks for pointing this out. I recently asked a friend about this, and he pointed me in the right direction too. After thinking about it, I don't think I was actually even IN the playing position under discussion, though I knew about the King-under-threat and castling- squares-under-threat aspects of this rule. Also, now I have more respect for my ChessMaster 2000 as a piece of programming...I already respected its ability to clobber me more often than not. Bob Dickow, (...egg-id!ui3!dickow) ----------