Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Start Your Engines.. TestPostion

Author: Ulrich Tuerke

Date: 13:58:10 07/11/03

Go up one level in this thread


On July 11, 2003 at 16:53:06, Sune Fischer wrote:

>On July 11, 2003 at 12:35:49, Rex wrote:
>
>>
>>Junior 8 makes a great move 36...Rb2 against Deep Sjeng 1.5 during the RK 2003
>>Tourney.
>>
>>How long does your program find Rb2!!
>>
>>[D]6k1/pp6/7p/P2P1Rp1/1Bb5/1qP5/4r1PP/2Q3K1 b - - 0 1
>>
>
>Less than a second, maybe it's not so hard? :)

I think it depends a lot on the static evaluation of the position. If I enforce
Rb2 in Comet, the engine immediately signals draw. "Unfortunately" Comet
estimates the position as slight advantage for Black und so it won't go for the
draw. Frenzee thinks that White has an advantage; this helps a lot here, because
it selects the right move early.

Nevertheless I think that seeing this in one second is impressively fast.

Uli


>
>Frenzee WB2 58 MB:
>D1  00:00  -0.04   1...Bxd5
>D2  00:00  0.15   1...Bxd5 2.Rf8+ Kg7
>D3  00:00  0.11   1...Bxd5 2.Rf8+ Kg7 3.g3
>D3  00:00  0.02   1...Qa2 2.Rf8+ Kg7 3.Qf1
>D4  00:00  1.20   1...Qa2 2.Qf1 b5 3.d6
>D4  00:00  0.84   1...Bxd5 2.Rxg5+ Kh7 3.Qf1 Qa2
>D4  00:00  0.32   1...Rc2 2.Qe1 Bxd5 3.Qe8+ Kg7
>D5  00:00  1.50   1...Rc2 2.Qe1 Re2 3.Rf8+ Kg7 4.Qf1
>D5  00:00  0.94   1...Bxd5 2.Rxg5+ Kh7 3.Qf1 Re1 4.Qxe1
>D6  00:00  0.82   1...Bxd5 2.Rxg5+ Kh7 3.Qf1 hxg5 4.Qxe2 Qb1+ 5.Qf1
>D6  00:00  0.00   1...Rb2 2.Rf8+ Kg7 3.Rd8 Rb1 4.Rd7+ Kg8 5.Rd8+ Kg7
>D7  00:01  0.00   1...Rb2 2.Rf8+ Kg7 3.Rd8 Rb1 4.Rd7+ Kg8 5.Rd8+ Kg7
>D8  00:01  0.00   1...Rb2 2.Rf8+ Kg7 3.Rd8 Rb1 4.Rd7+ Kg8 5.Rd8+ Kg7
>D9  00:03  -1.62   1...Rb2 2.Rxg5+ Kh7 3.Re5 Rb1 4.Re7+ Kg6 5.Re6+ Kf5 6.g4+
>Kxg4 7.Re4+ Kf5 8.Rf4+ Ke5 9.Bd6+ Kxd6
>D10  00:06  -2.98   1...Rb2 2.Rxg5+ Kh7 3.Re5 Rb1 4.Re7+ Kg6 5.Re6+ Kf5 6.Qe1
>Rxe1+ 7.Rxe1 Bxd5 8.Re7
>D11  00:25  -3.04   1...Rb2 2.Rxg5+ Kh7
>D12  00:29  -3.04   1...Rb2 2.Rxg5+ Kh7
>
>
>-S.



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.