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Subject: Test position

Author: Tom Brake

Date: 05:57:39 07/19/04

[D]r1b2R1R/pp1k4/8/P3p3/2n5/6P1/4KP2/8 w - - 0 31

31. g4 wins.

CM9K (Athlon 1200) took its sweet time finding and needs a little longer to give
it a correct score

Time	Depth	Score	Positions	Moves
0:00	1/4	0.17	7009		31.a6 Kc7 32.f3 b5 33.Rf7+ Kb6
0:00	1/4	0.22	7866		31.Re8 Kc7 32.f3 b5 33.axb6ep+ axb6
0:00	1/5	-0.08	14807		31.Re8 Kc7 32.f3 Nxa5 33.Rxe5 Nc6
0:00	1/5	0.17	20954		31.a6 b5 32.f3 Kc7 33.Rf7+ Kb6
0:00	1/6	0.04	54261		31.a6 b6 32.f3 Nd6 33.Rh7+ Kc6
					34.Kf2 Kd5
0:00	1/7	0.13	119223		31.a6 b6 32.f3 Nd6 33.Rh7+ Kc6
					34.Kf2 Kd5 35.g4
0:02	1/8	-0.05	376204		31.a6 b5 32.g4 b4 33.g5 Nd6 34.Rh7+
					Kc6 35.Ke3 Kd5
0:08	2/9	-0.20	1174317		31.a6 bxa6 32.g4 Nd6 33.g5 Ke7
					34.Ke3 Rb8 35.f4 Rb3+ 36.Ke2
0:25	3/10	-0.24	3531337		31.a6 b5 32.f3 b4 33.Rf6 Kc7 34.Rh7+
					Bd7 35.Rh4 Nd6 36.Rxb4 Bb5+ 37.Kf2
					Bxa6
0:53	4/11	-0.24	7744943		31.a6 b5 32.f3 b4 33.Rf6 Kc7 34.Rh7+
					Bd7 35.Rh4 Nd6 36.Rxb4 Bb5+ 37.Kf2
					Bxa6
1:25	4/11	0.16	12770215	31.g4 Nxa5 32.g5 Kc7 33.Ke1 Nc6
					34.g6 Rb8 35.g7 Be6 36.Rxb8 Nxb8
					37.g8=Q Bxg8 38.Rxg8
2:03	5/12	1.12	19000934	31.g4 Nxa5 32.g5 Nc6 33.g6 Nd4+
					34.Ke3 Ne6 35.Rf7+ Kd6 36.Rf6 Kc5
					37.Rxe6 Bxe6 38.Rxa8

Fritz 8 (Athlon 1200) finds it quickly but doesn't realise it's winning until
late.

Analysis by Fritz 8:
1.f4 b6 2.a6 Nd6 3.Ke3 Ke6
  -+  (-0.81)   Depth: 6/19   00:00:00  133kN
1.f4 exf4 2.gxf4 Nxa5 3.Rh7+ Kd6 4.Rd8+ Kc6 5.Rh6+ Kc7 6.Rd5 Bg4+
  -+  (-0.87)   Depth: 7/24   00:00:00  247kN
1.f4 b5 2.f5 b4 3.Rh7+ Kc6 4.Rxc8+ Rxc8 5.Rxa7
  -+  (-0.75)   Depth: 8/22   00:00:01  683kN
1.f4 exf4 2.gxf4 Nxa5 3.Kd3 b5 4.Kc3 Nc4 5.Rd8+ Kc7 6.f5
  -+  (-0.91)   Depth: 9/24   00:00:03  1529kN
1.f4 exf4 2.gxf4 Nxa5 3.Kd3 Nc6 4.Kc4 a5 5.f5 a4 6.f6
  -+  (-0.94)   Depth: 10/24   00:00:06  3256kN
1.g4!
  -+  (-0.91)   Depth: 10/27   00:00:09  5162kN
1.g4!
  =+  (-0.75)   Depth: 10/27   00:00:10  5527kN
1.g4!
  =+  (-0.47)   Depth: 11/28   00:00:13  7476kN
1.g4!
  =  (-0.19)   Depth: 12/29   00:00:25  14786kN
1.g4!
  =  (0.09)   Depth: 13/33   00:00:53  32018kN
1.g4 Kc7 2.Ke1 Nxa5 3.g5 Nc6 4.g6 Rb8 5.g7 Be6 6.Rxb8 Nxb8 7.Re8 Bd5 8.g8Q Bxg8
  =  (0.13)   Depth: 14/37   00:01:49  67816kN
1.g4!
  +=  (0.41)   Depth: 15/44   00:04:25  161742kN

Re: Test position Chris Welty 06:51:04 07/20/04
Re: Test position Robert Hyatt 20:13:39 07/19/04
- Re: Test position Peter Berger 01:29:32 07/20/04
  - Re: Test position Robert Hyatt 08:30:02 07/20/04
Re: Test position Richard Pijl 14:17:32 07/19/04
Re: Test position John Merlino 11:16:33 07/19/04
- Re: Test position Tom Brake 12:01:04 07/19/04
Re: Test position Rob Basham 06:55:35 07/19/04

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

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