Author: Miguel A. Ballicora
Date: 15:36:56 01/05/06
Go up one level in this thread
On January 05, 2006 at 15:36:03, Manfred Rosenboom wrote:
>Second position:
[D]r6r/1p3ppp/1n1bkn2/p2p4/P1pP4/2N1PN2/1P3PPP/R1B2RK1 b - -
>
>Rybka 1.01 Beta 7 32-bit:
> 3 00:00 1.072 1.097.728 +0,58 Ke6f5
> 4 00:00 3.055 195.520 +0,55 Ke6f5
> 5 00:00 8.785 142.791 +0,60 Ke6f5 Nc3b5
> 6 00:00 7.958 74.081 +0,59 Ke6f5 Nc3b5 Nf6e4
> 7 00:00 20.461 74.298 +0,56 Ke6f5 Nc3b5 Nf6e4 Nf3h4+ Kf5g5
> 8 00:00 55.656 101.228 +0,47 Ke6f5 Nc3b5 Rh8d8 Nb5xd6+ Rd8xd6 Nf3e5
>Kf5e6
> 8 00:00 67.235 107.408 +0,53 h7h6 Bc1d2 Nf6e4 Nc3b5 Rh8e8
> 9 00:01 91.884 118.054 +0,51 h7h6 Bc1d2 Nf6e4 Nc3b5 Rh8e8 g2g3
> 10 00:01 149.413 134.091 +0,51 h7h6 Bc1d2 Nf6e4 Nc3b5 Nb6d7 g2g3 h6h5
> 11 00:02 338.041 151.688 +0,45 h7h6 Bc1d2 Nf6e4 g2g3 Nb6d7 Kg1g2 Nd7f6
>Nc3b5
> 12 00:04 717.688 157.808 +0,48 h7h6 Bc1d2 Nf6e4 g2g3 Nb6d7 h2h3 g7g5
>Nc3b5 Nd7f6
> 13 00:08 1.342.171 164.085 +0,46 h7h6 Bc1d2 Nf6e4 Nc3b5 Nb6d7 Bd2c3 g7g5
>Nb5xd6 Ne4xd6 h2h3 Nd6e4
> 14 00:16 2.695.403 170.008 +0,41 h7h6 Bc1d2 Nf6e4 Nc3b5 Nb6d7 Bd2c3 g7g5
>h2h3 h6h5 h3h4 f7f6
> 15 00:33 5.611.144 171.994 +0,41 h7h6 Bc1d2 Nf6e4 Nc3b5 Nb6d7 Bd2c3 g7g5
>h2h3 f7f5 Ra1c1 Rh8h7 Nb5xd6
> 16 02:21 23.532.544 170.637 +0,34 h7h6 Nc3b5 Nf6e4 Nf3h4 Bd6b8 f2f3 Ne4d6
>e3e4 Nd6xb5 a4xb5 g7g6 Bc1d2 a5a4 g2g3
> 17 08:50 86.912.164 168.009 +0,34 h7h6 Nc3b5 Rh8d8 Bc1d2 Nf6e4 g2g3 Nb6d7
>Bd2c3 Nd7b8 Kg1g2 Nb8c6 Nf3d2 Ne4xd2 Bc3xd2
I disagree with the idea that white is better here. I agree with Rybka, and also
with h6. That has to be the best move, directed to the key square here, e4.
(notice that Crafty wants to play Bb4, directed toward e4). Black sets the
condition to play Ne4, which is not posible now because Nxe4 and Ng5+. White is
struggling badly with the lousy bishop.
I am happy that my engine Gaviota 0.33 with a primitive evaluation recognizes
this:
r6r/1p3ppp/1n1bkn2/p2p4/P1pP4/2N1PN2/1P3PPP/R1B2RK1 b - - 0 1
+-----------------+
| r . . . . . . r |
| . p . . . p p p |
| . n . b k n . . |
| p . . p . . . . |
| P . p P . . . . |
| . . N . P N . . |
| . P . . . P P P |
| R . B . . R K . |
+-----------------+
137776 7 0.8 +0.16 h7-h6 Bc1-d2 Nf6-e4 Nc3xe4
d5xe4 Nf3-e1 Nb6-d5 Ne1-c2
221635 7 1.1 +0.19 Ke6-f5 Bc1-d2 Bd6-b4 Nf3-e5
Kf5-e6 f2-f3 Bb4-d6
405426 7: 1.7 +0.19 Ke6-f5 Bc1-d2 Bd6-b4 Nf3-e5
Kf5-e6 f2-f3 Bb4-d6
502184 8 2.1 +0.11 Ke6-f5 Bc1-d2 Bd6-b4 Nf3-e5
Kf5-e6 f2-f4 h7-h5 f4-f5
Ke6-e7
1069121 8 4.3 +0.17 Ra8-d8 Bc1-d2 Bd6-b4 Bd2-e1
h7-h6 Nc3-e2 Nf6-e4 Ne2-f4
Ke6-e7 Be1xb4 a5xb4
1258735 8: 5.0 +0.17 Ra8-d8 Bc1-d2 Bd6-b4 Bd2-e1
h7-h6 Nc3-e2 Nf6-e4 Ne2-f4
Ke6-e7 Be1xb4 a5xb4
1566348 9 6.1 +0.07 Ra8-d8 Bc1-d2 Bd6-b4 Nc3-b5
Bb4xd2 Nf3xd2 h7-h5 b2-b3
Nf6-g4 h2-h3 <-transp
2149827 9 8.4 +0.10 Ke6-f5 Nc3-b5 Bd6-b8 Bc1-d2
Nf6-e4 Bd2-e1 f7-f6 h2-h3
Ra8-a6
2351212 9 9.2 +0.25 h7-h6 Bc1-d2 Nf6-e4 Nc3-b5
Bd6-b8 Bd2-e1 Nb6-d7 h2-h3
b7-b6
2703638 9: 10.3 +0.25 h7-h6 Bc1-d2 Nf6-e4 Nc3-b5
Bd6-b8 Bd2-e1 Nb6-d7 h2-h3
b7-b6
3263811 10 12.4 +0.22 h7-h6 Nc3-b5 Bd6-b8 Rf1-d1
Nf6-e4 h2-h3 f7-f5 Bc1-d2
f5-f4 Bd2-e1 f4xe3 f2xe3
4194726 10: 15.6 +0.22 h7-h6 Nc3-b5 Bd6-b8 Rf1-d1
Nf6-e4 h2-h3 f7-f5 Bc1-d2
f5-f4 Bd2-e1 f4xe3 f2xe3
6258592 11 23.4 +0.14 h7-h6 Nc3-b5 Bd6-b8 Nb5-c3
Bb8-c7 Bc1-d2 Bc7-d8 Nc3-e2
Nf6-e4 Ne2-f4 Ke6-f5 Bd2-e1
11897680 11: 44.8 +0.14 h7-h6 Nc3-b5 Bd6-b8 Nb5-c3
Bb8-c7 Bc1-d2 Bc7-d8 Nc3-e2
Nf6-e4 Ne2-f4 Ke6-f5 Bd2-e1
15998917 12 60.7 +0.11 h7-h6 Nc3-b5 Bd6-b8 Bc1-d2
Nf6-e4 Bd2-e1 Nb6-c8 h2-h3
Nc8-d6 Nb5-a3 b7-b6 Nf3-e5
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