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Subject: Re: Ponomariow-Adams (interesting position)

Author: Andreas Herrmann

Date: 07:22:07 04/26/02

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On April 26, 2002 at 06:55:24, Grzegorz Sidorowicz wrote:

>
>[D]3rr1k1/3n1p2/p5bp/1pRP2p1/1P6/1P3PPq/1B3Q1P/R4NK1 w - - 0 1
>
>bm=Ne3
>is it the best?
>
>In this position Ponomariow play Ne3
>Can your program detect it?
>Anlyze by my program (Armageddon(PII350))
>
>White's move (1)
>depth time    nodes       score   variation
>-------------------------------------------
>5     0       57298       100     c5c7 d7e5 b2e5 e8e5 f1e3 d8d6
>5     1       96428       122     c5c6 d7e5 b2e5 e8e5 f1e3 d8a8
>6     2       228174      147     c5c6 d7e5 b2e5 e8e5 f1e3 d8a8 a1a6
>6     3       314703      160     c5c6 d7e5 b2e5 e8e5 f1e3 g8g7 a1a6
>7     3       414733      135     c5c6 d7e5 b2e5 e8e5 f1e3 d8e8 a1a6 e5e3
>7     9       978626      117     c5c6 d7e5 b2e5 e8e5 d5d6 g6d3 f2d4 h3f5
>8     21      2387385     140     c5c6 d7e5 b2e5 e8e5 d5d6 h3e6 a1a6 e6b3 f2b6
>9     1.0     6207048     121     c5c6 d7e5 b2e5 e8e5 f1e3 d8e8 a1e1 e8a8 f2b2
>9     2.57    18165833    128     f1d2 d7e5 b2e5 e8e5 d5d6 e5e6 a1a6 d8d6 a6d6
>10    11.44   68117877    103     f1d2 h3f5 f2d4 f5e5 d4e5 d7e5 b2e5 e8e5 g1g2


Are you sure Ne3 is the best move? Holmes find it at ply 9 as the best move, but
throw it away for the move Rd6.
Here an analysis of a previous Holmes version (the current version i havn't
available here):

 5    125       14      21267 1.c5c6 d7f8 [bm33! ns151907 0:00 n21267]
 5    112       15      23007 1.c5c6 d7e5 [bm1 ns153380 0:00 n23007]
 5    124       15      23009 1.d5d6 [bm1 ns153393 0:00 n23009]
 5    127       23      38157 1.f2d4 d7e5 2.f1d2 [bm2 ns165900 0:00 n38157]
 6    127       37      69204 1.f2d4 d7e5 2.f1d2 [bm1 ns187037 0:00 n69204]
 7    130       76     148672 1.f2d4 d7e5 2.f1d2 d8d6 3.a1e1 [bm1 ns195621 0:00
n148672]
 8    166      848    1803943 1.f2d4 d7e5 2.f1d2 g6h5 3.g3g4 h5g6 4.a1a6 e5f3
5.d2f3 [bm1 ns212729 0:08 n1803943]
 9    138     7221   16014514 1.f2d4 f7f6 2.f1e3 d7e5 3.d4d1 g6h5 4.b2e5 e8e5
5.e3g2 h3f5 [bm1 ns221776 1:12 n16014514]
 9    156    12306   26548809 1.d5d6 g6h7 2.f2d4 f7f6 3.d4d5 g8g7 4.d5d1 d7c5
5.b4c5 h3c8 6.b3b4 [bm1 ns215738 2:03 n26548809]
 9    165    14959   32411235 1.f1e3 d7c5 2.b4c5 d8a8 3.e3g4 e8c8 4.a1e1 c8b8
5.g4f6 g8f8 6.f2f1 [bm13 ns216667 2:29 n32411235]
10    180    22626   49736814 1.f1e3 d7c5 2.b4c5 d8a8 3.e3g4 g8f8 4.a1e1 a8d8
5.e1e8 d8e8 [bm1 ns219821 3:46 n49736814]
10    181    37122   82126374 1.d5d6 d8a8 [bm1 ns221233 6:11 n82126374]


Andreas




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