Start Your Engines!

[Terry McCracken]

[d]2b1qrk1/5p1p/pBn3p1/1p2p3/4P2N/bBP1Q3/P4PPP/3R2K1 w - - 0 25

How long does it take for your engine to see 25. Nxg6!! as the best move?

I'll give the game and the players after your engines have a go at this.

Terry

[Spock]

very fast for Quad Fritz 10.1 (although this isn't "my" engine if you're wanting author responses)

Code: Select all

Deep Fritz 10 - ,M
2b1qrk1/5p1p/pBn3p1/1p2p3/4P2N/bBP1Q3/P4PPP/3R2K1 w - - 0 1

Analysis by Deep Fritz 10:

25.Qh6 Be6 
  +/=  (0.58)   Depth: 9/21   00:00:00  204kN
25.Qh6 Be6 26.Rd3 
  +/=  (0.58)   Depth: 9/21   00:00:00  233kN
25.Qg5 
  +/=  (0.58)   Depth: 9/26   00:00:00  317kN
25.Qg5 
  +/-  (0.74)   Depth: 9/26   00:00:00  343kN
25.Nf3 
  +/-  (0.74)   Depth: 9/26   00:00:00  367kN
25.Nf3 Be6 26.Ng5 Bg4 27.Rd3 Be7 28.Bc5 
  +/-  (0.79)   Depth: 9/26   00:00:00  394kN
25.Nf3 Be6 26.Bd5 Qd7 27.c4 b4 28.Bc5 Rc8 29.Ng5 Bxd5 30.exd5 Bb2 
  +/-  (0.98)   Depth: 10/24   00:00:00  1020kN
25.Nf3 Qe7 26.Bd5 Bd7 27.c4 bxc4 28.Bxc4 Bg4 29.Bxa6 Rb8 30.Bc4 Bxf3 31.gxf3 
  +/-  (1.10)   Depth: 11/27   00:00:00  2218kN
25.Nf3 Qe7 26.Bd5 Bd7 27.Rd3 Qf6 28.c4 b4 29.Bc5 Rc8 30.Ng5 Be8 
  +/-  (1.01)   Depth: 12/26   00:00:00  3456kN
25.Nf3 Qe7 26.Bd5 Bd7 27.c4 bxc4 28.Qh6 Kh8 29.Bxc4 f5 30.Ng5 Bc8 31.exf5 Bxf5 32.Bxa6 
  +/-  (1.04)   Depth: 13/27   00:00:01  7606kN
25.Nxg6 
  +/-  (1.04)   Depth: 13/27   00:00:01  11077kN

[Spock]

Quad Zappa Mexico takes well over 2 minutes

[Spock]

Quad Shredder 11 is still on Qh6 after 10 minutes.

That's it from me

[ilari]

Sloppy found it at depth 14:

Code: Select all

 7  +0.61  00:00      368692  Nf3 Bg4 h3 Bd7 Qh6 Be6 Be3
 8  +0.77  00:01     1333974  Qh6 Be6 Nf3 Be7 Bxe6 fxe6 Be3 Rf7
 9  +0.71  00:02     2845074  Qh6 Be6 Nf3 Be7 Bxe6 fxe6 Be3 Kh8 h3
10  +0.75  00:06     8028906  Qh6 Kh8 Be3 Be7 h3 Bd7 Nf3 f5 exf5 Bxf5
11  +0.76  00:23    27919786  Nf3 Qe7 Bd5 Bd7 Qh6 Kh8 Be3 f5 exf5 Rxf5 h3
12  +0.77  00:37    44036960  Nf3 Qe7 Bd5 Bd7 Qh6 Kh8 c4 f6 cxb5 axb5 Be3 Bc5
13  +0.86  01:13    84201588  Nf3 Qe7 Bd5 Bd7 c4 bxc4 Bxc4 Be6 Bxe6 fxe6 Qc3 Qb7 Be3
14  +1.15  02:35   183148147  Nxg6 hxg6 Qh6 Be6 Rd3 f5 Rh3 Kf7 exf5 Bxb3 Qxg6+ Ke7 Rh7+ Rf7
15  +1.15  04:15   306981651  Nxg6 hxg6 Qh6 Be6 Rd3 f5 Rh3 Kf7 exf5 Bxb3 Qxg6+ Ke7 Rh7+ Rf7 axb3

[ArmoredGuns]

Dual Rybka 2.3.2a 32bit finds it in half a minute on an overclocked intel core 2 duo @3.5ghz-

But dual List 13.6 on the same hardware finds it in exactly 20 seconds!!

And Dual Deep Fritz 8 takes the championship, finding it in 12 seconds!!!

[Harvey Williamson]

35 seconds!

New game, Blitz:60'+15"
2b1qrk1/5p1p/pBn3p1/1p2p3/4P2N/bBP1Q3/P4PPP/3R2K1 w - - 0 1

Analysis by HIARCS 11.94o MP T:

1.Nf3
± (0.85) Depth: 10/24 00:00:00 850kN
1.Nf3 Kg7 2.c4 bxc4 3.Bxc4 Qe7 4.Rd3 Bd6 5.a4 f5
± (0.86) Depth: 10/26 00:00:00 1271kN
1.Nf3 Kg7 2.c4 bxc4 3.Bxc4 Qe7 4.h3 Bb4 5.Qc1 Bb7 6.Be3 Kg8 7.Bh6 Rd8
± (0.91) Depth: 11/30 00:00:01 1968kN
1.Nf3 Be7 2.a4 Kg7 3.axb5 axb5 4.Bc7 f6 5.Qb6 Nd8
± (0.91) Depth: 12/30 00:00:02 3846kN
1.Qh6
± (0.92) Depth: 12/30 00:00:02 4069kN
1.Qh6 Qe7 2.Nf3 Qf6 3.Bd5 Bd7
± (0.92) Depth: 12/30 00:00:02 4402kN
1.Qh6 Qe7 2.Nf3 Qf6 3.Bd5 Ne7 4.Bc7 Qg7 5.Qxg7+ Kxg7 6.Nxe5 f6 7.Nd3 Nxd5 8.exd5 Bg4 9.f3
± (0.89) Depth: 13/31 00:00:03 6593kN
1.Nf3
± (0.90) Depth: 13/31 00:00:03 6937kN
1.Nf3 Be7 2.Qh6 Bg4 3.Rd3 Be6
± (0.96) Depth: 13/31 00:00:03 7869kN
1.Nf3 Be7 2.h3 Kg7 3.c4 f6 4.cxb5
± (0.96) Depth: 14/34 00:00:07 15061kN
1.Nf3 Kg7 2.c4 Be7 3.cxb5 axb5 4.Qe2 Ba6 5.Be3 f6 6.Be6 Qb8 7.Rc1 Qd6
± (0.94) Depth: 15/35 00:00:16 36018kN
1.Nf3 Bg4 2.c4 Be7 3.cxb5 axb5 4.h3 Bxf3 5.Qxf3 Qb8 6.Be3 Kg7 7.Rd7 Qc8 8.Rd2 Qc7 9.Rd5 Qb7 10.Qe2 Rb8 11.Rd1 Rd8
± (0.96) Depth: 16/36 00:00:26 59902kN
1.Nxg6
± (0.96) Depth: 16/40 00:00:35 79483kN
1.Nxg6 hxg6
± (0.96) Depth: 16/40 00:00:36 83236kN

(Williamson, 18.11.2007)

[Albert Silver]

[d]2b1qrk1/5p1p/pBn3p1/1p2p3/4P2N/bBP1Q3/P4PPP/3R2K1 w - - 0 25

How long does it take for your engine to see 25. Nxg6!! as the best move?

I'll give the game and the players after your engines have a go at this.

Terry

On my Athlon64 3500+ (2.2 GHz):

Rybka Winfinder gets it in 11 seconds, and Toga in 57 seconds.

Analysis by Rybka WinFinder 2.2 32-bit:

1.c4 bxc4 2.Bxc4 Qe7 3.Nf3 Bg4 4.h3 Bxf3
² (0.60) Depth: 11 00:00:05 340kN
1.c4 bxc4 2.Bxc4 Qe7 3.Nf3 Bg4 4.h3 Bxf3 5.Qxf3 Bc5
² (0.45) Depth: 12 00:00:09 587kN
1.Nxg6
² (0.48) Depth: 12 00:00:11 587kN
1.Nxg6
± (0.97) Depth: 12 00:00:11 587kN
1.Nxg6
± (1.12) Depth: 12 00:00:12 587kN
1.Nxg6 hxg6 2.Qh6 Be6 3.Rd3 f5 4.Rh3 Kf7 5.exf5 Bxb3 6.Qxg6+ Ke7 7.Rh7+ Rf7
± (1.12) Depth: 12 00:00:13 858kN


Analysis by Toga II 1.3x4:

1.Nf3 Bg4 2.h3 Be6 3.Ng5 Bxb3 4.axb3 Be7 5.Bc5 a5 6.Rd5 f6 7.Bxe7 Qxe7
± (0.78) Depth: 12/32 00:00:05 1881kN
1.Nf3 Bg4 2.h3 Be6 3.Bc5 Bxc5 4.Qxc5 Na5 5.Bxe6 Qxe6 6.Nxe5 Rc8 7.Qd6 Rxc3 8.Qd8+ Kg7
± (0.96) Depth: 13/34 00:00:08 5421kN
1.Nf3 Bg4 2.h3 Bxf3 3.Qxf3 Qe7 4.Bd5 Rc8 5.Kh1 Bd6 6.Qg4 Rb8 7.Be3 Qc7 8.Qf3
± (0.96) Depth: 14/38 00:00:16 9656kN
1.Nf3 Bg4 2.h3 Bxf3 3.Qxf3 Qe7 4.Bd5 Rc8 5.Kh1 Nd8 6.Bxd8 Rxd8 7.Bxf7+ Kh8 8.Rxd8+ Qxd8 9.c4 Bc5 10.a3 Qg5 11.cxb5 axb5
± (0.94) Depth: 15/42 00:00:27 16555kN
1.Nxg6 hxg6 2.Qh6 Be6 3.Rd3 Ne7 4.Bxe6 fxe6 5.Rh3 Kf7 6.Qh7+ Kf6 7.Be3 Nf5 8.exf5 exf5 9.Bg5+ Ke6 10.Rd3 Qf7 11.Qh3
± (1.10) Depth: 15/45 00:00:57 33789kN
1.Nxg6 hxg6 2.Qh6 Be6 3.Rd3 Ne7 4.Bc7 Bc1 5.Qxc1 Qc6 6.Bxe5 Qxe4 7.Re3 Qb7 8.Bxe6 fxe6 9.Bd6 Rf6
+- (1.42) Depth: 16/48 00:01:13 42989kN

[Harvey Williamson]

It is a shame that Rybka winfinder is not really for playing games. Although I guess it would be easy for an engine author to make a very tactical engne just for this type of test.

Have CCRL or CEGT rated winfinder in games? This maybe more worthwhile than testing several beta versions of Rybka.

[Spock]

And Dual Deep Fritz 8 takes the championship, finding it in 12 seconds!!!

Yep - Quad Fritz 10.1 got it in one second for me, and then stuck with it