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Subject: Re: A bit late: CCT5 recap for Amateur

Author: Uri Blass

Date: 21:51:44 01/24/03

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On January 25, 2003 at 00:27:44, Uri Blass wrote:

>>Round 5      Amateur – Movei  1-0
>>(Movei:  Uri Blass)
>>
>>Amateur was lucky in this game, coming out of the opening in a good position.
>>It won a pawn, then kept up the pressure to win another, and the game was soon
>>over.  Uri must have been disappointed with this one.
>
>Amateur was favourite in that game thanks to better hardware and being white.
>I do not know which engine is better.
>
>I do not think that Movei play bad at that game and Movei did no stupid blunder.
>
>Movei's last mistake was 28...Rxc5 but I found that Movei is not the only
>program with problems in that position
>
>I find that Movei needs depth 13 to fail low on 28...Rxc5.
>
>Here is some analysis on p850 of latest Movei(64 Mbytes hash)
>[D]2r1r1k1/6pp/4p3/B1Pp4/4nq2/3Q3P/PPR1RPP1/6K1 b - - 0 28
>12 -85 16022 22409104 c8c5 c2c5 e4c5 d3c2 c5e4 c2c6 g8f7 a5c7 f4f5 a2a3 e4f6
>c7e5 f5b1 g1h2
>12 -85 31961 44277326 c8c5 c2c5 e4c5 d3c2 c5e4 c2c6 g8f7 a5c7 f4f5 a2a3 e4f6
>c7e5 f5b1 g1h2
>13 -194 38602 54122796 c8c5 c2c5 e4c5 d3b5 f4f8 a5b4 e8b8 b5c5 b8b4 c5c6 b4c4
>c6e6 f8f7 b2b3 c4c1 g1h2 d5d4
>13 -193 40326 56632335 e4c5
>13 -164 41430 58228606 e4c5
>13 -95 44127 62370292 e4c5 d3e3 f4e3 e2e3 d5d4 e3e1 c5d3 c2c8 e8c8 e1d1 c8c1
>d1c1 d3c1 a2a3 e6e5
>13 -95 78467 108576033 e4c5 d3e3 f4e3 e2e3 d5d4 e3e1 c5d3 c2c8 e8c8 e1d1 c8c1
>d1c1 d3c1 a2a3 e6e5
>14 -96 137468 191119054 e4c5 d3e3 f4e3 e2e3 d5d4 e3e1 c5d3 c2c8 e8c8 e1e6 c8c1
>g1h2 c1c2 e6d6 c2b2 d6d4 d3f2
>
>Note that analysis by yace(only material) suggest that after Nc5 Qb5
>black lose a pawn but here black has a positional compensation that Movei seems
>to evaluate it as slightly more than a pawn so it gives Qe3 in it's pv.
>
>Uri

2 notes:

1)It seems that yace only material was wrong and Nc5 is not losing material and
black can heep the pawn disadvantage.

If I give yace only material the line Nc5 Qb5 Ne4 f3 Nf6 Rxc8 Rxc8 yace suddenly
admit that the pawn was an illusion.

2)After a long analysis after Nc5 Qb5 the evaluation goes down and movei has
slightly more than a pawn against itself

depth=14 -1.12 c5e4 f2f3 e4f6 c2c8 e8c8 b5b6 c8e8 e2e6 e8b8 b6f2 f4c1 e6e1 c1b2
a5c7 b8b4 f2b2 b4b2
Nodes: 134919604 NPS: 143164
Time: 00:15:42.41

Uri



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