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Subject: Re: Old position.

Author: George Tsavdaris

Date: 15:46:19 08/26/03

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On August 26, 2003 at 18:28:34, Dan Andersson wrote:

> This isn't especially har but it is one of the oldest analyzed positions. How
>long for your engine to find the killer move?
>[D]rnbq1bnr/ppp3pp/6k1/3BQ3/4P3/8/PPPP1PPP/RNB1K2R w KQ -
>
>MvH Dan Andersson

I (an awuful player) would choose h4. Gambit Shredder 7.04 agree.
It finds the move in 1 sec in a PIV-1500MHz with 32Mib hash.

Engine: Gambit Shredder 7.04
by Stefan Meyer-Kahlen

  6/20	 0:01 	+1.61++	1.f4 Qe7 2.f5+ Kh6 3.d3+ g5 4.Qxh8 Qxe4+ 5.dxe4 (191.681)
182.9
  6/20	 0:01 	+1.96++	1.f4 Qe7 2.f5+ Kh6 3.d3+ g5 4.Qxh8 Qxe4+ 5.dxe4 (206.496)
181.4
  6/24	 0:01 	+1.96 	1.f4 h5 2.O-O Bd6 3.d3 Bxe5 (232.412) 182.5
  7/17	 0:01 	+1.71--	1.f4 h5 2.O-O Bc5+ 3.Kh1 Bd6 4.Qf5+ Bxf5 5.Bf7+ Kxf7
(279.356) 184.0
  7/26	 0:01 	+1.61 	1.f4 h5 2.f5+ Kh7 3.Qg3 Ne7 4.Qg5 Qe8 5.Bc4 (324.386) 185.0
  7/26	 0:01 	+1.62++	1.h4 h5 2.Bxb7 Bd6 3.Qa5 Qf6 4.Bxa8 (341.201) 184.1
  7/26	 0:01 	+1.97++	1.h4 h5 2.Bxb7 Bd6 3.Qa5 Qf6 4.Bxa8 (356.100) 183.2
  7/26	 0:02 	+4.52 	1.h4 h5 2.Bxb7 Bd6 3.Qa5 Bb4 4.Qxb4 a5 5.Qb3 Bxb7 6.Qxb7
(471.750) 186.2
  8/26	 0:03 	+4.35 	1.h4 h5 2.Bxb7 Bd6 3.Qa5 Bb4 4.Qxb4 Na6 5.Qb3 Bxb7 6.Qxb7
(743.406) 193.1
  9/24	 0:06 	+4.44 	1.h4 h6 2.Bxb7 Bd6 3.Qa5 Bb4 4.Qxb4 Na6 5.Qb3 Bxb7 6.Qxb7
(1.352.916) 206.3
 10/26	 0:12 	+4.61 	1.h4 h6 2.Bxb7 Bd6 3.Qa5 Bb4 4.Qb5 c6 5.Qxb4 Bxb7 6.Qxb7
Nd7 (2.610.293) 209.3
 11/32	 0:29 	+4.62 	1.h4 h6 2.Bxb7 Nc6 3.h5+ Kh7 4.Qg3 Nge7 5.Bxa8 Nd4 6.Qc3
Bg4 7.f3 (6.167.361) 209.7
 12/34	 1:09 	+4.64 	1.h4 h6 2.Bxb7 Bd6 3.Qa5 Bb4 4.Qxb4 Bxb7 5.Qxb7 Nd7 6.d3
Kh5 7.Qd5+ (14.731.489) 212.5

best move: h2-h4 time: 1:34.247 min  n/s: 215.307  nodes: 20.291.417



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