Author: Daniel Pineo
Date: 13:48:49 08/14/05
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On August 13, 2005 at 16:44:42, Joachim Rang wrote: >On August 13, 2005 at 16:23:14, Daniel Pineo wrote: > >>On August 13, 2005 at 13:59:00, Uri Blass wrote: >> >>>On August 13, 2005 at 13:32:06, Steve Maughan wrote: >>> >>>>Uri, >>>> >>>>>... and I think that his ideas about evaluation are clearly better than the >>>>>ideas that I had before reading fruit. >>>> >>>>Out of interest which of Fruit's ideas are you speaking about? >>>> >>>>Steve >>>>2)giving a small bonus for rook that is in the same file as the opponent king >>>and small bonus for rook that is at distance of one file from the opponent >>>king(the bonus is based on the stage of the game and is 0 in the endgame). >> >>Be careful with that one-off idea. A rook one file off from the enemy king is >>often the worst place for it. Many times the king is preventing the rook from >>invading to the 7th rank. Being one file off is really only useful if it >>coordinates with other pieces to form a king attack. Of course, this is exactly >>what you'll see in most test suites, so I'm sure it would look pretty good >>there. >> >> -Dan Pineo > > >Note that rook on king file gives a higher bonus than rook on semi-king-file. So >it won't give incentive to place the rook one file off. But if you can't place >it directly on the king file one file off gives half the bonus. > >Do you still think it is not beneficial? > >regards Joachim Often times by being one file off the king is preventing an invasion of the rook to the 7th rank. When there's not that many pieces left in a mostly closed position, this is one of the first duties that the king usually assumes. - Daniel Pineo
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