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Subject: Re: where are the difficult test positions ? please no positions that we

Author: Martin Baumung

Date: 11:12:54 11/07/05

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On November 07, 2005 at 13:32:11, Kurt Utzinger wrote:

>      Is this really a good test position.
>      CM9_T05 does not find 28.Rxh5 within
>      reasonable time and does even not
>      assess the postion after 28.Rxh5 gxh5
>      as won for White. Is the game continuation
>      indeed forced. Further investigations
>      are required I think. Analysis under
>      CM-GUI on P4 1.8/32 MB hash
>      Kurt

[D]6k1/4pp1p/3p4/7p/p3P3/r4P2/P1PK2P1/1R6 w - -

Here's Shredder's evaluation of the position after 28.Rxh5 gxh5:

FEN: 6k1/4pp1p/3p4/7p/p3P3/r4P2/P1PK2P1/1R6 w - - 0 29

Shredder 9.1:
  1/3-	00:00	           3	0	-0,34	29.Tb1b7
  1/3	00:00	           6	0	-0,34	29.Tb1b7
  1/3+	00:00	          17	0	-0,08	29.Tb1b8+
  1/3	00:00	          19	0	-0,08	29.Tb1b8+ Kg8g7
  1/3+	00:00	          27	0	+0,10	29.Tb1b2 f7f5 30.e4xf5 Kg8g7 31.c2c3 Kg7f6
32.Kd2d3 d6d5 33.g2g4 h5xg4 34.f3xg4 e7e5 35.f5xe6/ep Kf6xe6 36.Tb2b7
  1/15	00:00	          28	0	+0,10	29.Tb1b2 f7f5 30.e4xf5 Kg8g7 31.c2c3 Kg7f6
32.Kd2d3 d6d5 33.g2g4 h5xg4 34.f3xg4 e7e5 35.f5xe6/ep Kf6xe6 36.Tb2b7
  2/2	00:00	          39	0	+0,10	29.Tb1b2 f7f5 30.e4xf5 Kg8g7 31.c2c3 Kg7f6
32.Kd2d3 d6d5 33.g2g4 h5xg4 34.f3xg4 e7e5 35.f5xe6/ep Kf6xe6 36.Tb2b7
  3/3	00:00	          70	0	+0,10	29.Tb1b2 f7f5 30.e4xf5 Kg8g7 31.c2c3 Kg7f6
32.Kd2d3 d6d5 33.g2g4 h5xg4 34.f3xg4 e7e5 35.f5xe6/ep Kf6xe6 36.Tb2b7
  4/4	00:00	         128	0	+0,10	29.Tb1b2 f7f5 30.e4xf5 Kg8g7 31.c2c3 Kg7f6
32.Kd2d3 d6d5 33.g2g4 h5xg4 34.f3xg4 e7e5 35.f5xe6/ep Kf6xe6 36.Tb2b7
  5/5	00:00	         185	0	+0,10	29.Tb1b2 f7f5 30.e4xf5 Kg8g7 31.c2c3 Kg7f6
32.Kd2d3 d6d5 33.g2g4 h5xg4 34.f3xg4 e7e5 35.f5xe6/ep Kf6xe6 36.Tb2b7
  6/6	00:00	         300	0	+0,10	29.Tb1b2 f7f5 30.e4xf5 Kg8g7 31.c2c3 Kg7f6
32.Kd2d3 d6d5 33.g2g4 h5xg4 34.f3xg4 e7e5 35.f5xe6/ep Kf6xe6 36.Tb2b7
  7/7	00:00	         545	0	+0,10	29.Tb1b2 f7f5 30.e4xf5 Kg8g7 31.c2c3 Kg7f6
32.Kd2d3 d6d5 33.g2g4 h5xg4 34.f3xg4 e7e5 35.f5xe6/ep Kf6xe6 36.Tb2b7
  8/8	00:00	         799	0	+0,10	29.Tb1b2 f7f5 30.e4xf5 Kg8g7 31.c2c3 Kg7f6
32.Kd2d3 d6d5 33.g2g4 h5xg4 34.f3xg4 e7e5 35.f5xe6/ep Kf6xe6 36.Tb2b7
  9/9	00:00	       1.145	0	+0,10	29.Tb1b2 f7f5 30.e4xf5 Kg8g7 31.c2c3 Kg7f6
32.Kd2d3 d6d5 33.g2g4 h5xg4 34.f3xg4 e7e5 35.f5xe6/ep Kf6xe6 36.Tb2b7
 10/10	00:00	       1.221	0	+0,10	29.Tb1b2 f7f5 30.e4xf5 Kg8g7 31.c2c3 Kg7f6
32.Kd2d3 d6d5 33.g2g4 h5xg4 34.f3xg4 e7e5 35.f5xe6/ep Kf6xe6 36.Tb2b7
 11/11	00:00	       1.735	0	+0,10	29.Tb1b2 f7f5 30.e4xf5 Kg8g7 31.c2c3 Kg7f6
32.Kd2d3 d6d5 33.g2g4 h5xg4 34.f3xg4 e7e5 35.f5xe6/ep Kf6xe6 36.Tb2b7
 12/12	00:00	       2.518	157.375	+0,10	29.Tb1b2 f7f5 30.e4xf5 Kg8g7 31.c2c3
Kg7f6 32.Kd2d3 d6d5 33.g2g4 h5xg4 34.f3xg4 e7e5 35.f5xe6/ep Kf6xe6 36.Tb2b7
 13/13	00:00	       4.140	258.750	+0,10	29.Tb1b2 f7f5 30.e4xf5 Kg8g7 31.c2c3
Kg7f6 32.Kd2d3 d6d5 33.g2g4 h5xg4 34.f3xg4 e7e5 35.f5xe6/ep Kf6xe6 36.Tb2b7
 14/14	00:00	       6.604	206.375	+0,10	29.Tb1b2 f7f5 30.e4xf5 Kg8g7 31.c2c3
Kg7f6 32.Kd2d3 d6d5 33.g2g4 h5xg4 34.f3xg4 e7e5 35.f5xe6/ep Kf6xe6 36.Tb2b7
 15/15	00:00	      21.989	349.031	+0,10	29.Tb1b2 f7f5 30.e4xf5 Kg8g7 31.c2c3
Kg7f6 32.Kd2d3 d6d5 33.g2g4 h5xg4 34.f3xg4 e7e5 35.f5xe6/ep Kf6xe6 36.Tb2b7
 16/27	00:01	     606.891	606.891	+0,26	29.Tb1b2 e7e6 30.c2c3 Kg8g7
 16/27+	00:01	     839.828	624.872	+0,27	29.Tb1a1
 16/27+	00:01	     890.978	626.566	+0,62	29.Tb1a1
 16/27	00:02	   1.399.415	639.586	+0,65	29.Tb1a1 e7e6 30.c2c3 d6d5 31.e4xd5
e6xd5 32.Kd2c2
 17/25	00:02	   1.569.086	643.595	+0,55	29.Tb1a1 e7e6 30.c2c3 d6d5 31.Kd2c2 d5d4
32.c3xd4 Kg8f8 33.Kc2d2 h5h4 34.d4d5 h4h3 35.g2xh3 Ta3xf3
 18/24	00:03	   2.180.174	634.140	+0,41	29.Tb1a1 e7e6 30.c2c3 d6d5 31.e4xd5
e6xd5 32.Kd2c2
 18/26+	00:04	   2.637.070	636.819	+0,42	29.Tb1b2
 18/26+	00:04	   3.028.159	641.695	+0,77	29.Tb1b2
 18/41	00:09	   5.678.933	634.305	+0,78	29.Tb1b2 e7e6 30.c2c3 f7f6
 19/30	00:11	   6.877.168	632.383	+0,90	29.Tb1b2 e7e6 30.c2c3 d6d5 31.Tb2c2
Kg8f8 32.Kd2c1 d5d4 33.Kc1b2 Ta3xc3 34.Tc2xc3 d4xc3+ 35.Kb2xc3 Kf8e7 36.Kc3b4
f7f5 37.e4xf5 e6xf5 38.Kb4xa4 Ke7e6 39.Ka4b5 Ke6e5
 20/33	00:13	   8.180.084	631.520	+0,99	29.Tb1b2 e7e6 30.c2c3 d6d5 31.Tb2c2
Kg8f8 32.Kd2c1 d5d4 33.Kc1b2 Ta3xc3 34.Tc2xc3 d4xc3+ 35.Kb2xc3 Kf8e7 36.Kc3b4
Ke7d6 37.Kb4xa4 Kd6c5 38.g2g3 Kc5d4
 21/36	00:16	  10.431.192	630.969	+1,15	29.Tb1b2 e7e6 30.c2c3 d6d5 31.Tb2c2
Kg8f8 32.Kd2c1 d5d4 33.Kc1b2 Ta3xc3 34.Tc2xc3 d4xc3+ 35.Kb2xc3 Kf8e7 36.Kc3b4
Ke7d6 37.Kb4xa4 Kd6e5 38.Ka4b5 f7f5 39.e4xf5
 22/36	00:22	  14.229.778	630.249	+1,15	29.Tb1b2 e7e6 30.c2c3 d6d5 31.Tb2c2
Kg8f8 32.Kd2c1 d5d4 33.Kc1b2 Ta3xc3 34.Tc2xc3 d4xc3+ 35.Kb2xc3 Kf8e7 36.Kc3b4
Ke7d6 37.Kb4xa4 Kd6e5 38.Ka4b5 f7f5 39.e4xf5
 23/45	00:35	  22.013.184	628.373	+1,39	29.Tb1b2 e7e6 30.c2c3 d6d5 31.e4xd5
e6xd5 32.Kd2d3 Kg8f8 33.Tb2e2 h5h4 34.Kd3d4 Kf8g7
 24/42	00:51	  32.038.319	628.781	+1,58	29.Tb1b2 e7e6 30.c2c3 d6d5 31.e4xd5
e6xd5 32.Kd2d3 Kg8f8 33.Tb2e2 f7f5 34.Kd3d4 Kf8f7 35.Te2c2 Kf7e6 36.Kd4c5 d5d4
37.Kc5xd4
 25/42+	01:06	  41.767.724	630.751	+1,83	29.Tb1b2 e7e6
 25/46	01:30	  55.746.061	620.904	+2,29	29.Tb1b2 e7e6 30.c2c3 d6d5 31.e4xd5
e6xd5 32.Kd2d3 Kg8f8 33.Tb2e2 h5h4 34.Kd3d4 h4h3 35.g2xh3 h7h5 36.Te2c2 Ta3xa2
 26/51+	02:04	  77.319.089	620.648	+2,54	29.Tb1b2 e7e6
 26/51+	02:20	  87.791.249	624.706	+3,04	29.Tb1b2 e7e6
 26/51	04:05	 150.854.450	614.165	+5,26	29.Tb1b2 Kg8g7 30.c2c3 Kg7f6 31.Kd2d3
Kf6e5 32.Kd3c4 Ke5f4 33.Kc4b4 Ta3xa2 34.Tb2xa2 h5h4 35.e4e5 Kf4xe5
 27/46	05:15	 191.496.475	607.381	+5,48	29.Tb1b2 Kg8g7 30.c2c3 Kg7f6 31.Kd2d3
Kf6e5 32.Kd3c4 Ke5f4 33.Kc4b4 Ta3xa2 34.Tb2xa2 h5h4 35.Kb4xa4 h4h3 36.g2xh3
Kf4xf3 37.Ka4b5 Kf3xe4

Looks like a win for white ;-)

Cheers,

Martin

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