Author: Russell Reagan
Date: 22:50:03 07/13/04
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On July 12, 2004 at 03:51:44, Ed Schröder wrote: >The question here is how Crafty being down a pawn, also facing 3 connected >passers (h2,g2,f2) evaluates this position. Did 42..a5! show a possitive score >for Crafty then hat off for Crafty. Did 42..a5! show a < -1.xx or even lower >then I would say Crafty indeed was lucky. I look at it from a different perspective. Crafty was the better engine this game. Dan Heisman says it better than I could. http://www.chesscafe.com/text/real.txt "A Chain is Only As Strong As Its Weakest Link The best way to introduce the second part of my explanation is to make an analogy. Suppose you build a home where the temperature is -20 degrees outside. You decide on a one-room home with four walls, a roof, a floor, and a heater. You decide to save a little time and material by finishing the four walls, the floor, and half the roof, but the other half you leave open. Even though you have completed over 90% of the structure, the temperature inside your home will still be about -20 degrees with half your roof open. If you want your inside heater to be effective, you have to enclose all of your home. The cold home analogy is similar to what happens when you play Real chess for 90% of your moves, but not for the other 10%. You think you are a good player, but weaker players beat you when you let down your guard for that 10%. In order to be a good player, you have to at least try to play correctly on every move, not just most of them. Consistency is important: remember that your chain of moves, in many cases, is only as strong as the weakest link." Crafty may have been outplayed for most of the game, but it was more consistent than Falcon, so it ended up the better engine that game.
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