Author: Robert Hyatt
Date: 20:06:48 10/09/02
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I had to stop the experiment sooner than I wanted, but I did find some interesting things out. 1. at _very_ fast time controls (40 moves in 1 minute) null-move completely destroys non-null-move by a ridiculous margin. (this ended something like 60 wins, 5 losses, 8 draws) 2. At longer time controls (40 moves in 10 minutes) non-null-move catches up somewhat. It still loses far more than it wins, but not _nearly_ so bad as test 1. (this was closer, but with fewer games played) 3. At 40 moves in 60 minutes, things close up even closer as the data I previously posted shows. The margin ended up at 13.0 / 22.0 in favor of null-move. (null won 8, lost 4, drew 10) 4. I wonder what would happen at longer time controls. Note that these were run on 550mhz processors, going to cpus 4x faster might close the gap even farther... food for thought... I don't know what 13/22 turns into, rating wise, 18/24 would be +200, so this is significantly less than +200 overall.
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