From: "'Ben Bednarz'" AOL COM> Date: 13 may 1997 Subject: Re: Real chess computing In a message dated 97-05-13 02:52:14 EDT, you write: << Sorry to disagree, but I think it would be extremely silly. The top pc chess programs play at (weak) Grandmaster level, and Deep Blue plays about one class better, at the level of Candidates for the World Championship. One class in chess is comparable to one or two ranks in shogi (opinions differ on this); if I allow two ranks, that implies that if pc programs play shogi at amateur 1 dan level, if they were to run on a specially built shogi machine comparable to Deep Blue they would play at Amateur 3 Dan level. This in turn means that with years of effort and millions of dollars expenditure, IBM (or the Japanese equivalent) could construct a machine that could give Habu a good fight -- at Two Piece Handicap! Of course software may be improved in the future, conceptual breakthrus may occur, etc., but until a pc program can play at the Amateur 6 dan level (which I would expect to take about twenty years, and I am on record as forecasting back around 1985 that a computer would beat the chess champ in a match in 1995, only two years off), no super computer using similar algorithms could hope to defeat the Pro Meijin. >> Larry, your comments about computer shogi vs. chess surprises me. In 1985 or 86, you stopped by Seattle (the Last Exit) while I was living there. I asked you about this very question at that time, because it was my opinion that shogi would be harder to program. Your answer then was that shogi should be easier to program. Did I misunderstand you originally, or did you change your mind in the intervening years? You also said then, as you do now, that Go would be hardest of all. Ironically, I've never been convinced of that. I think it just requires a very different approach than the standard chess/shogi programming methods. One of the speculations that people like to discuss is whether the success of computer chess could kill the popularity of chess for humans (or, at least, for professionals). If shogi and go are harder to program, then we can imagine a day when chess is mostly relegated to casual games for kids, while serious players play only shogi & go. The history of checkers is a good precedent for this. Of course, if a computer conquers shogi & go as well, then we would need to invent a new game with a geater branching level (say, > 1000). Incidentally, drops are not the only reason shogi is harder to program than chess. There are fewer long-range pieces and and slightly larger board. This means that there are a greater number of variations to reach any given position, and that it will be harder to filter out these variations for selective searches. Ben Bednarz, Salem, OR