Author: Mark Longridge
Date: 23:06:01 05/08/00
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> >It sounds like your book was made from a small set of games, with a lot of >1. f4 games in it to make that appear the most popular. What did you build >it from? Used the medium book from your ftp site, added all Fischer's games, all Deep Blue, Kasparov's games, and yes a ton of Bird's Opening games with 1. f4 Never thought that the number of games could decide the frequency of a particular opening, which does make sense to me. My book is over 33 megs, so I don't think it's a small book. I wanted something out of the ordinary to mix things up, hence the 1. f4 games. And indeed, after a ton of bird's opening games, some computers are ill prepared to fight against it. It has more difficulty against Nimzo2000 and Gandalf using this opening. I also tried experimenting with 1. d3 and 1. a3 with very mixed results. My conclusion with these oddball openings is that they can win, but 1. a3 seems only barely playable. Compared to really weird openings, the bird's opening wins just over 50% of it's games. Usually it's set to play 4 15 and 15 1 time controls, and I'd even go as far to say that Crafty plays 4 15 better than quicker time controls, especially against engines like Fritz and Hiarcs. For example, 4 15 seems to go much better than 5 3. But I don't understand the number of Philidor's Defense games, which is rather drawish (but still a lot better than 1. a3)
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