Author: Sean Empey
Date: 12:34:21 07/31/04
Go up one level in this thread
On July 30, 2004 at 20:44:34, Albert Silver wrote:
>On July 30, 2004 at 14:45:03, Sean Empey wrote:
>
>>On July 30, 2004 at 10:55:07, Albert Silver wrote:
>>
>>>The following position arose in a famous game between Taimanov and Karpov in
>>>1973. Karpov sacrificed a pawn to prevent white from pushing c4, and obtain
>>>excellent play against the hanging pawns using the two files. I expect that most
>>>of the top engines should find this move, but the amateurs should find it much
>>>harder. How does your engine do?
>>>
>>> Albert
>>>
>>>[D]2q2rk1/p1rn1ppp/1p2pn2/8/Q2P4/2P2N2/P2B1PPP/2RR2K1 b - - 0 17
>>>
>>>17...Rc4! 18.Qxa7 Qc6 19.Qa3 Rc8
>>>
>>>Here is the full game:
>>>
>>>[Event "Moscow-3teams"]
>>>[Site ""]
>>>[Date "1973"]
>>>[Round "2"]
>>>[White "Taimanov Mark E"]
>>>[Black "Karpov Anatoly"]
>>>[Result "0-1"]
>>>[Eco "E55"]
>>>[Annotator ""]
>>>[Source "MCL"]
>>>
>>>1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 O-O 6.Nf3 d5 7.O-O dxc4
>>>8.Bxc4 cxd4 9.exd4 b6 10.Qe2 Bb7 11.Rd1 Nbd7 12.Bd2 Rc8 13.Ba6
>>>Bxa6 14.Qxa6 Bxc3 15.bxc3 Rc7 16.Rac1 Qc8 17.Qa4 Rc4 18.Qxa7
>>>Qc6 19.Qa3 Rc8 20.h3 h6 21.Rb1 Ra4 22.Qb3 Nd5 23.Rdc1 Rc4 24.Rb2
>>>f6 25.Re1 Kf7 26.Qd1 Nf8 27.Rb3 Ng6 28.Qb1 Ra8 29.Re4 Rca4 30.Rb2
>>>Nf8 31.Qd3 Rc4 32.Re1 Ra3 33.Qb1 Ng6 34.Rc1 Nxc3 35.Qd3 Ne2+
>>>36.Qxe2 Rxc1+ 37.Bxc1 Qxc1+ 38.Kh2 Rxf3 39.gxf3 Nh4 0-1
>>>
>>>In the last position, white lost on time BTW.
>>
>>Storm found it in less than a second.
>
>
>Does it hold it? Could you share the line and eval?
>
> Albert
Hey Albert.
I have made some changes since then. My original version was 2.0.1 this is
v2.0.7
it holds it after 15.
***********************************
* *
* STORM! Chess Engine *
* version: 2.0.7 *
* Copyright 1999-2004 Sean Empey *
* *
* *
* ICC: stormx *
* ICC Operator: specwar *
* email: storm@specwar.com *
* web site: www.specwar.com/storm *
***********************************
EGTB access enabled
5 piece tablebase files in use
EGTB cache memory = 1024M bytes.
Storm is using 3 threads
hash table memory = 384M bytes.
pawn hash table memory = 48M bytes.
Storm v2.0.7 CPU(3)
2q2rk1/p1rn1ppp/1p2pn2/8/Q2P4/2P2N2/P2B1PPP/2RR2K1 b - - 0 17
+---+---+---+---+---+---+---+---+
8 | | | *q| | | *r| *k| |
+---+---+---+---+---+---+---+---+
7 | *p| | *r| *n| | *p| *p| *p|
+---+---+---+---+---+---+---+---+
6 | | *p| | | *p| *n| | |
+---+---+---+---+---+---+---+---+
5 | | | | | | | | |
+---+---+---+---+---+---+---+---+
4 | Q | | | P | | | | |
+---+---+---+---+---+---+---+---+
3 | | | P | | | N | | |
+---+---+---+---+---+---+---+---+
2 | P | | | B | | P | P | P |
+---+---+---+---+---+---+---+---+
1 | | | R | R | | | K | |
+---+---+---+---+---+---+---+---+
a b c d e f g h
14& 1:43 0.29 1. ... a6 2. c4 Rd8 3. Bf4 Rc6 4. h3
Nf8 5. Qc2 Nd5 6. Bd2 Ng6 7. a4 Ngf4
8. Bxf4 Nxf4
14& 2:04 0.21 1. ... Ne4 2. c4 Nxd2 3. Nxd2 Nf6 4.
h3 Qd7 5. Qxd7 Rxd7 6. Nf3 Rfd8 7.
a4 Kf8 8. Re1 Ke7
14& 3:28 0.07 1. ... Rc4 2. Qxa7 Qc6 3. Qa3 Rc8 4.
Re1 Ne4 5. h4 Nxc3 6. Bxc3 Rxc3 7.
Rxc3 Qxc3 8. Qxc3 Rxc3 9. a4
14-> 3:29 0.07 1. ... Rc4 2. Qxa7 Qc6 3. Qa3 Rc8 4.
Re1 Ne4 5. h4 Nxc3 6. Bxc3 Rxc3 7.
Rxc3 Qxc3 8. Qxc3 Rxc3 9. a4
15& 3:44 0.05 1. ... Rc4 2. Qxa7 Qc6 3. Qa3 Rc8 4.
h3 Nd5 5. Ng5 N7f6 6. Qb2 h6 7. Nf3
Nd7 8. Ne5 Nxe5 9. dxe5 Nxc3 10. Bxc3
Rxc3 11. Rxc3 Qxc3 12. Qxc3 Rxc3
15-> 4:46 0.05 1. ... Rc4 2. Qxa7 Qc6 3. Qa3 Rc8 4.
h3 Nd5 5. Ng5 N7f6 6. Qb2 h6 7. Nf3
Nd7 8. Ne5 Nxe5 9. dxe5 Nxc3 10. Bxc3
Rxc3 11. Rxc3 Qxc3 12. Qxc3 Rxc3
Let me know if any further info is needed by you.
-Sean
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