interesting test position from recent SSDF match

Discussion of anything and everything relating to chess playing software and machines.

Moderator: Ras

jdart
Posts: 4411
Joined: Fri Mar 10, 2006 5:23 am
Location: http://www.arasanchess.org

interesting test position from recent SSDF match

Post by jdart »

Deep Shredder 11 vs. Zappa Mexico:

[d] r2r2k1/1bq1bp1p/pp2p1p1/4P1PP/3pNP2/3B4/PPP1Q3/R4RK1 w - -

Shredder played Nf6+ and won after Bxf6 exf6 Qc5 hxg6 hxg6 Qh2. But Black can evade the check with Kg7: after that I don't see a clear win for White.
Top
User avatar
Mike S.
Posts: 1480
Joined: Thu Mar 09, 2006 5:33 am

Re: interesting test position from recent SSDF match

Post by Mike S. »

Yes... I let run Rybka WinFinder 2.2 in the background for a while, in the position after Nf6+ Kg7, and it didn't find a 'direct' win. With depth, WinFinder seems to agree that BxNf6 is not good for Black (also not later).

r2r4/1bq1bpkp/pp2pNp1/4P1PP/3p1P2/3B4/PPP1Q3/R4RK1 w - - 0 2

Analysis by Rybka WinFinder 2.2 32-bit:

(...)
2.Qh2 Rh8 3.Qh3 Rad8 4.Rf2 Qc5 5.a3 Qa5 6.h6+ Kf8 7.Re2 Bd5
² (0.48) Depth: 6 00:00:00 41kN
² (0.41) Depth: 14 00:01:43 5698kN
2.Qg4 Rh8 3.Rac1 Bxf6 4.exf6+ Kg8 5.Rce1 Qc5 6.a3 Bd5 7.Re5 Kf8
² (0.48) Depth: 14 00:02:16 7402kN
² (0.48) Depth: 15 00:03:34 11693kN
2.Rf2 Qc6 3.Be4 Qc7 4.Rh2 d3 5.cxd3 Bxe4 6.dxe4 Rac8 7.hxg6 hxg6 8.Rh7+ Kf8
± (0.75) Depth: 15 00:07:17 23766kN
² (0.68) Depth: 17 00:12:23 40519kN

For a while, WF. had a pv where White was quickly doubling the rooks in h.
Regards, Mike
Top
F. Bluemers
Posts: 880
Joined: Thu Mar 09, 2006 11:21 pm
Location: Nederland

Re: interesting test position from recent SSDF match

Post by F. Bluemers »

² (0.48) Depth: 15 00:03:34 11693kN
2.Rf2 Qc6 3.Be4 Qc7 4.Rh2 d3 5.cxd3 Bxe4 6.dxe4 Rac8 7.hxg6 hxg6 8.Rh7+ Kf8
after 7 Nh7 black looks pretty busted. :lol:
Best
Fonzy
Top
CRoberson
Posts: 2094
Joined: Mon Mar 13, 2006 2:31 am
Location: North Carolina, USA

Re: interesting test position from recent SSDF match

Post by CRoberson »

Telepath 4.63 & 4.64 analysis:

Code: Select all


FEN: r2r2k1/1bq1bp1p/pp2p1p1/4P1PP/3pNP2/3B4/PPP1Q3/R4RK1 w - - 0 1 

Rev4.0x64Xboard:
h5-h6
   2	00:00	         797	797	-0.15	e4f6 e7f6 a1a1
   3	00:00	       7.504	24.206	-0.12	h5h6 g8f8 e4f6
   4	00:00	      19.918	18.107	-0.17	a1c1 b7c6 e4f6 e7f6 a1a1
   5	00:00	      34.070	16.783	-0.16	a1c1 b7c6 e4f6 e7f6 e5f6 a1a1
   6	00:01	     115.054	17.121	-0.01	a1c1 b7d5 c2c3 d5c6 c3d4 a1a1
   7	00:01	     230.013	17.518	 0.00	a1c1 c7d7 h5g6 h7g6 c2c3 d7d5 a1a1
   8	00:03	     466.244	35.509	-0.10	a1c1 c7d7 e4f6 e7f6 e5f6 g8f8 c2c3 d7a4 a1a1
   8	00:07	   1.208.050	172.578	-0.10	a1c1 c7d7 e4f6 e7f6 e5f6 g8f8 c2c3 d7a4 a1a1
   8	00:07	   1.208.050	172.578	-0.10	a1c1 c7d7 e4f6 e7f6 e5f6 g8f8 c2c3 d7a4 a1a1
   9	00:11	   1.922.369	174.760	-0.07	a1c1 c7c6 h5h6 c6a4 a2a3 g8f8 c2c3 a8c8 a1a1
   9	00:12	   2.196.677	175.734	-0.07	a1c1 c7c6 h5h6 c6a4 a2a3 g8f8 c2c3 a8c8 a1a1
   9	00:12	   2.196.677	175.734	-0.07	a1c1 c7c6 h5h6 c6a4 a2a3 g8f8 c2c3 a8c8 a1a1
  10	00:19	   3.432.320	180.648	-0.11	a1c1 c7c6 h5h6 c6a4 a2a3 g8f8 e2g2 a6a5 f1d1 a1a1
  10	00:27	   4.939.156	181.253	-0.05	h5h6 g8f8 a1c1 b6b5 c2c3 d4c3 c1c3 c7b6 g1h1 a8c8 a1a1
  10	00:30	   5.638.685	183.371	-0.05	h5h6 g8f8 a1c1 b6b5 c2c3 d4c3 c1c3 c7b6 g1h1 a8c8 a1a1
  10	00:30	   5.638.685	183.371	-0.05	h5h6 g8f8 a1c1 b6b5 c2c3 d4c3 c1c3 c7b6 g1h1 a8c8 a1a1
  11	00:41	   7.554.104	184.246	-0.11	h5h6 c7d7 f1c1 g8f8 a2a4 b7c6 a4a5 d7c7 a5b6 c7b6 a1a1
  11	01:10	  13.239.457	188.462	-0.11	h5h6 c7d7 f1c1 g8f8 a2a4 b7c6 a4a5 d7c7 a5b6 c7b6 a1a1
  11	01:10	  13.239.457	188.462	-0.11	h5h6 c7d7 f1c1 g8f8 a2a4 b7c6 a4a5 d7c7 a5b6 c7b6 a1a1
  12	01:18	  14.712.795	188.625	-0.18	h5h6 g8f8 a1c1 b6b5 c2c3 d4c3 c1c3 c7b6 f1f2 e7b4 c3c1 a8c8 a1a1
  12	04:01	  45.771.619	189.923	-0.13	f1e1 b6b5 e2h2 a8c8 e4f6 e7f6 e5f6 c7b6 a1c1 b7d5 h5g6 h7g6 a1a1
  12	05:12	  59.215.125	189.792	-0.13	f1e1 b6b5 e2h2 a8c8 e4f6 e7f6 e5f6 c7b6 a1c1 b7d5 h5g6 h7g6 a1a1
  12	05:12	  59.215.125	189.792	-0.13	f1e1 b6b5 e2h2 a8c8 e4f6 e7f6 e5f6 c7b6 a1c1 b7d5 h5g6 h7g6 a1a1

Rev4.0x63Xboard:
   2	00:00	         834	834	-0.15	e4f6 e7f6 a1a1
   3	00:00	       3.945	26.300	-0.12	h5h6 g8f8 e4f6
   4	00:00	      15.086	16.221	-0.17	a1c1 b7c6 e4f6 e7f6 a1a1
   5	00:01	      30.247	16.174	-0.16	a1c1 b7c6 e4f6 e7f6 e5f6 a1a1
   6	00:01	     109.566	16.304	-0.01	a1c1 b7d5 c2c3 d5c6 c3d4 a1a1
   7	00:02	     199.689	16.822	+0.02	a1c1 b7d5 c2c3 d4c3 c1c3 c7b7 a1a1
   8	00:03	     492.429	41.485	-0.08	a1c1 c7c6 a2a3 c6a4 h5g6 h7g6 e4f6 e7f6 a1a1
   8	00:07	   1.172.258	156.301	-0.08	a1c1 c7c6 a2a3 c6a4 h5g6 h7g6 e4f6 e7f6 a1a1
   8	00:07	   1.172.258	156.301	-0.08	a1c1 c7c6 a2a3 c6a4 h5g6 h7g6 e4f6 e7f6 a1a1
   9	00:11	   1.766.994	160.635	-0.12	a1c1 b6b5 h5h6 b7d5 a2a3 c7b6 e2f2 g8f8 a1a1
   9	00:13	   2.292.539	166.730	-0.12	a1c1 b6b5 h5h6 b7d5 a2a3 c7b6 e2f2 g8f8 a1a1
   9	00:13	   2.292.539	166.730	-0.12	a1c1 b6b5 h5h6 b7d5 a2a3 c7b6 e2f2 g8f8 a1a1
  10	00:18	   3.127.735	169.066	-0.18	a1c1 b6b5 e4f6 e7f6 e5f6 a8c8 h5g6 h7g6 d3g6 f7g6 e2e6 a1a1
  10	01:03	  11.123.613	175.867	-0.14	f1e1 g8f8 e1c1 b7c6 c2c3 c7b7 h5g6 h7g6 c3d4 f7g6
  10	01:43	  18.177.032	176.031	-0.14	f1e1 g8f8 e1c1 b7c6 c2c3 c7b7 h5g6 h7g6 c3d4 f7g6
  10	01:43	  18.177.032	176.031	-0.14	f1e1 g8f8 e1c1 b7c6 c2c3 c7b7 h5g6 h7g6 c3d4 f7g6
  11	02:30	  25.985.668	173.237	-0.13	f1e1 b7c6 e2g4 c6d5 a1c1 c7a7 a2a3 a8c8 h5g6 h7g6 e4f6 a1a1
  11	03:25	  35.866.481	174.958	-0.13	f1e1 b7c6 e2g4 c6d5 a1c1 c7a7 a2a3 a8c8 h5g6 h7g6 e4f6 a1a1
  11	03:25	  35.866.481	174.958	-0.13	f1e1 b7c6 e2g4 c6d5 a1c1 c7a7 a2a3 a8c8 h5g6 h7g6 e4f6 a1a1
  12	04:51	  51.275.853	176.205	-0.16	f1e1 b7c6 a1c1 b6b5 e2g4 a8c8 h5g6 h7g6 e4f6 e7f6 e5f6 c6d5 a1a1
  12	05:32	  59.013.763	177.752	-0.14	h5h6 b6b5 a2a4 b5b4 e4f6 e7f6 e5f6 g8f8 d3g6 f7g6 e2e6 d8e8 a1a1
Top

Return to “Computer Chess Club: General Topics”