Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: test position -- CM8000 results

Author: John Merlino

Date: 14:35:50 01/25/01

Go up one level in this thread


On January 25, 2001 at 17:01:41, David Rasmussen wrote:

>[D]1k1r1bnr/ppp1qbpp/3p2n1/3Pp3/N3Pp2/1QN2P2/PPP1BBPP/R2R2K1 w - - 0 1
>
>I made this up a couple of minutes ago, at random. I was quite sure that there
>would something tactical in it for white. It turned out there was, starting with
>Nb5. But my program took 57 seconds to fail high the first time at depth 11,
>only to get a score of 0.85 at research. I wouldn't say that Chezzz understood
>what happened until depth 12, where it fails high with +1.18 and gets +2.06 at
>research. This took 570 seconds...
>
>I'm sure a lot of programs will see this within the first second or so...

Chessmaster 8000 (default settings, on a PIII-600) does pretty much the same
thing:

Time	Depth	Score	Positions	Moves
0:00	4	0.77	4219		1. Nb5 a6 2. Na3 b5 3. Nc4
0:00	5	0.74	10987		1. Nb5 a6 2. Na3 b5 3. Nc4 Nf6
0:00	6	0.82	52345		1. Nb5 a6 2. Na3 Ka8 3. Nc3 b5
0:02	7	0.74	173686		1. Nb5 a6 2. Na3 Ka8 3. Nc3 b5
					4. Qb4 Nf6
0:11	8	0.78	792454		1. Nb5 a6 2. Na3 Ka8 3. Nc3 Nf6
					4. Rac1 b5
0:22	8	0.96	1570374		1. Qb5 Be8 2. Qa5 b6 3. Qa6 Rc8
					4. b3 c5 5. Nb2 Qb7
0:32	9	1.07	2301860		1. Qb5 Be8 2. Qa5 b6 3. Qa6 Rc8
					4. Bb5 Bxb5 5. Nxb5 c6 6. Na3
2:20	10	1.16	10694071	1. Qb5 Be8 2. Qa5 b6 3. Qa6 Rc8
					4. Bb5 Bxb5 5. Nxb5 c6 6. dxc6
					Rxc6 7. Nac3 Nf6
6:47	10	1.73	30819461	1. Nb5 a6 2. Na7 Ka8 3. Bxa6 bxa6
					4. Nc6 Qg5 5. Qc4 Kb7 6. Nxd8+
					Qxd8 7. Qc6+ Kb8 8. Qxa6
13:16	11	3.19	62030810	1. Nb5 c5 2. dxc6 bxc6 3. Bxa7+
					Qxa7+ 4. Nxa7+ Bxb3 5. Nxc6+ Kc7
					6. Nxd8 Bxa4 7. Nf7 Nf6 8. b3 Bc6
					9. Nxh8 Nxh8

jm



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.