Author: Eelco de Groot
Date: 04:47:16 06/30/05
Go up one level in this thread
On June 29, 2005 at 15:43:54, Richard Pijl wrote:
>On June 29, 2005 at 14:20:32, Eelco de Groot wrote:
>
>>On June 29, 2005 at 10:23:49, Richard Pijl wrote:
>>
>>>The following position occurred in an ICC game between Amateur and the Baron
>>>[D]2r5/p2nnkNp/1pq1p1pP/3pPp2/2rP4/P1P3Q1/3B1PP1/R4RK1 b - -
>>>To my surprise Baron didn't hesitate to sac the exchange on c3 and won the game,
>>>probably partly because Amateur didn't handle the endgame too well (exchange of
>>>queens was probably not a good idea).
>
>>I'm not sure the exchange sac is entirely correct, Richard?
>
>I'm not sure either. The Baron didn't have a convincing winning score.
>
>
>>after 22..Rxc3 Vulcan Q1e expects 23.Qg5 which fails low but then is still at
>>+2.5 for White
>
>I'm not surprised that this might be the case. Black is material down. But when
>counting as a human, the knight on g7 isn't doing much and going nowhere. So I
>guess +2.5 is a bit overoptimistic.
>Richard.
Yes I suppose that could well be so Richard. Vulcan Q1e were tactical settings,
I think it saw maybe more than there is because of King Safety points after
22..Rxc3 23.Qg5.
I tried to make a substitute eval by letting the Pro Deo 1.1 Vulcan
{9k4}settings play against itself for a couple of moves after 22..Rxc3.
After 22..Rxc3 23.Qg5 Rc4 24.Bb4 Ng8, those moves seemed plausible apart maybe
from not accepting the exchange, Pro Deo 1.1 Vulcan {9k4} settings is were I was
up to, they thought a little longer and played 25.Rfe1. Then I let Black analyze
again, and the score looks better now for Black..
The position is [D]2r3n1/p2n1kNp/1pq1p1pP/3pPpQ1/1BrP4/P7/5PP1/R3R1K1 b - - 5 1
Now the settings are not exactly standard Pro Deo, no tactical settings though,
this is what they produced, on Athlon 3200+, 200 Mb HT:
[Event "?"]
[Site "?"]
[Date "2005.06.30"]
[White "?"]
[Black "?"]
[Result "*"]
1.d4 e6 2.e4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3 6.bxc3 Qc7 7.Qg4 f5 8.Qg3 cxd4
9.cxd4 Ne7 10.Bd2 O-O 11.Bd3 b6 12.Ne2 Ba6 13.Nf4 Qd7 14.h4 Bxd3 15.Qxd3 Rc8
16.h5 Rc4 17.c3 Qc6 18.Qg3 Nd7 19.h6 g6 20.Nh5 Kf7 21.Ng7 Rc8 22.O-O Rxc3 23.Qg5
Rc4 24.Bb4 Ng8 25.Rfe1
2r3n1/p2n1kNp/1pq1p1pP/3pPpQ1/1BrP4/P7/5PP1/R3R1K1 b - -
00:00:00 1.00 -1.94 25..Rc2
00:00:00 1.07 -1.18 25..Rxd4
00:00:00 2.00 -1.55 25..Rxd4 26.Bd6
00:00:00 3.00 -1.14 25..Rxd4 26.Rac1 Nc5 27.Rg4 Nxe6 28.Rxg5 Nxg5
29.Ke8 Nxh7 30.Nxh6
00:00:00 4.00 -1.23 25..Rxd4 26.Rac1 Nc5 27.f3
00:00:00 5.00 -0.76 25..Rxd4 26.Nxf5 exf5 27.e6 Qxe6 28.Rxe6 Kxe6
29.Re4 Rd1 30.Nc5
00:00:00 6.00 -1.29 25..Rxd4 26.Nxf5 exf5 27.e6 Qxe6 28.Rxe6 Kxe6
29.Re1 Re4 30.Rd1 f4
00:00:00 7.00 -1.29 25..Rxd4 26.Nxf5 exf5 27.e6 Qxe6 28.Rxe6 Kxe6
29.Re1 Re4 30.Rd1 f4
00:00:00 7.01 -1.19 25..Nc5 26.dxc5
00:00:01 8.00 -0.93 25..Nc5 26.g4 Rxd4 27.gxf5 exf5 28.f3 Kf8
29.Nxf5 Rc4
00:00:01 8.01 -0.93 25..Rxd4
00:00:03 9.00 -0.93 25..Nc5 26.g4 Rxd4 27.gxf5 exf5 28.f3 Kf8
29.Nxf5 Rc4
00:00:06 10.00 -1.04 25..Nc5 26.dxc5
00:00:48 11.00 -1.12 25..Nc5 26.dxc5
00:02:03 12.00 -1.12 25..Nc5 26.dxc5
00:02:54 13.00 -1.18 25..Nc5 26.dxc5
00:10:58 13.05 -1.04 25..Qc7 26.Bd6 Qd8 27.Qf4 Nc5
00:29:24 14.00 -0.84 25..Qc7 26.Bd6 Qd8 27.Qf4 Nc5
00:46:03 15.00 -0.84 25..Qc7 26.Bd6 Qd8 27.Qf4 Nc5 28.Rad1
01:25:48 15.11 -0.79 25..Nf8 26.g4 Rxd4 27.f3 f4
03:32:31 16.00 -0.35 25..Nf8 26.Qh4 Qd7
Eelco
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