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Subject: Re: Bad PV's

Author: Dann Corbit

Date: 21:55:50 07/16/04

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On July 17, 2004 at 00:13:39, Stuart Cracraft wrote:

>On July 16, 2004 at 20:04:53, Dann Corbit wrote:
>
>...snip...
>
>Curious. When I changed the replacement strategy
>from "replace only if position to be stored has
>a search depth > than the one being replaced" to
>either >= or always-replace, the PV's all started
>looking better. Not just in the opening position
>of the original test but throughout a game.
>
>I am curious as to why this might be as I thought
>the replacement strategy was important but wouldn't
>introduce pathology.
>
>1. e2e4  0.00   31       21 e2e4
>2. e2e4  0.00    0       87 e2e4 e7e5
>3. e2e4  0.01   17      276 e2e4 e7e5 f1c4
>4. e2e4  0.02    0     1721 e2e4 e7e5 f1c4 f8c5
>5. e2e4  0.08   17     7608 e2e4 e7e5 g1f3 d7d6 d2d4
>6. e2e4  0.30    0    31025 e2e4 e7e5 f1c4 f8c5 d2d3 d7d6
>7. e2e4  1.17   17   120316 e2e4 e7e5 f1c4 d7d6 b1c3 g8f6 d2d3
>8. e2e4  3.97    0   395322 e2e4 e7e5 d2d3 g8f6 b1c3 d7d6 g1f3 b8d7
>e2e4  3.97    0   395322 e2e4 e7e5 d2d3 g8f6 b1c3 d7d6 g1f3 b8d7
>nps=99477 ha=29.00% q=80.0% bc=70% br=3.2% mp=178<>178
>pawnx=0 recapx=0 qcheckx=24053 checkx=0 futilx=0 qfutilx=34189

Dumb question:
You do have the side to move included in the hash?



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