Author: leonid
Date: 14:10:08 10/18/99
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On October 18, 1999 at 14:07:08, Jonathan Lee wrote: >On October 17, 1999 at 20:19:13, leonid wrote: > >>Hi! >> >>I was very surprised when I found that in move ordering putting the checking >>moves at the head of the moves chain is something unusual. It can be. I wrote me >>logic alone and maybe in a wrong way. At least, somebody explained me why this >>way is so wrong. I went to my game and tryed to find what is true. Disconnected >>in 2 plys from 8 plys deposition of the checking moves at the head of the moves >>chain. Speed of the logic went down between 10 to 40%. So putting the moves that >>make check at the head of the chain have more that simple good sense. >> >>Leonid. >I have 3 reasons why checking moves first are unneccessary or no difference. >1. (queen-king vs. king) or (rook-king vs. king) don't need checks just >checkmate. >2. I have Genius at home and the high selective depth (12) will find (all short >run) "forced moves", checks or no checks. >3. Computers must be absolute skeptics (in the short run) because there are >"exceptions to uniformity". >The efficiency in the short run will decide it's overall tactics. >When I mean "the short run", it is the finite number of moves found per finite >time. >I hope this clears up the matter. It seems to me that the latest 1999 machines >are beating much more than 99 percent of humans. >Jonathan Logic can be done in many different ways. But putting the theory aside, direct trying says that this way of chaining the moves is very effective. And I don't speak about some small one or two percent that are almost invisible. This way give somewhere around 20% difference when used only in 2 plys. I tryed this on my logic, where I have complet access to every bit of the game. I don't speak about Genius, or some other game where you are often even don't know what they are been talking about. With my respect, Leonid.
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