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Subject: Shredder 9 vs. Fruit 2 - Test position Rxg7!

Author: Martin Baumung

Date: 01:57:51 04/29/05


Hello everyone,

here's a test position taken from a game between Shredder 9 and Fruit 2.0:

[D]8/2r2bp1/1k2p3/1p1pP2P/pP1P4/P2K4/4B3/6R1 w - - 54 69

69.Rxg7! wins for white. Here's Shredder's analysis:

FEN: 8/2r2bp1/1k2p3/1p1pP2P/pP1P4/P2K4/4B3/6R1 w - - 54 69

Shredder 9.02:
  1/1+	00:00	           1	100	+3,89	69.Tg1xg7
  1/1	00:00	           2	200	+3,89	69.Tg1xg7
  2/6-	00:00	          37	3.700	+3,61	69.Tg1xg7
  2/6-	00:00	          49	4.900	+0,92	69.Tg1xg7
  2/7	00:00	          83	8.300	+0,83	69.Tg1xg7 Lf7xh5
  2/7+	00:00	         123	12.300	+0,90	69.Tg1g5
  2/7	00:00	         148	14.800	+0,99	69.Tg1g5 Lf7e8
  3/5	00:00	         324	10.800	+0,92	69.Tg1g5 Lf7e8 70.Le2g4
  4/6	00:00	         897	29.900	+1,12	69.Tg1g5 Lf7g8 70.Tg5g6 Lg8h7
  5/8-	00:00	       1.722	43.050	+0,86	69.Tg1g5 Lf7g8
  5/8	00:00	       2.148	53.700	+0,86	69.Tg1g5 Lf7g8 70.Kd3e3 Lg8h7 71.Le2g4
  5/11+	00:00	       2.935	48.916	+0,88	69.Kd3d2
  5/11	00:00	       2.998	49.966	+0,88	69.Kd3d2 Lf7e8 70.Kd2e3 Tc7c3+ 71.Ke3f4
Tc3h3
  5/11+	00:00	       3.342	55.700	+0,90	69.Le2f3
  5/11	00:00	       3.528	58.800	+0,90	69.Le2f3 Lf7e8 70.Tg1g5 Kb6c6 71.Lf3g4
  6/13	00:00	       6.060	67.333	+0,78	69.Le2f3 Lf7g8 70.Lf3g4 Lg8h7+ 71.Kd3e3
Tc7c3+ 72.Ke3f4 Tc3xa3
  6/13+	00:00	       6.309	70.100	+0,83	69.Tg1g5
  6/13	00:00	       7.432	67.563	+1,00	69.Tg1g5 Lf7g8 70.Le2g4 Lg8h7+ 71.Kd3e2
Lh7g8 72.Ke2e3
  7/13	00:00	      11.582	82.728	+1,07	69.Tg1g5 Lf7g8 70.Le2g4 Kb6c6 71.Kd3e3
Kc6b6 72.Ke3f4 Tc7f7+ 73.Kf4e3
  8/13	00:00	      19.826	123.912	+1,21	69.Tg1g5 Lf7g8 70.Kd3d2 Lg8h7 71.Le2g4
  9/15	00:00	      32.807	156.223	+1,18	69.Tg1g5 Lf7g8 70.Kd3e3 Lg8h7
 10/16	00:00	      50.850	195.576	+1,10	69.Tg1g5 Lf7g8 70.Le2g4 Lg8h7+
 11/19	00:00	      80.031	235.385	+1,16	69.Tg1g5 Lf7g8 70.Le2g4 Lg8h7+ 71.Kd3e3
Tc7e7 72.Lg4h3 Lh7e4 73.Tg5g1 Kb6c6 74.Tg1g5 Kc6d7
 12/23	00:00	     145.559	274.122	+1,05	69.Tg1g5 Lf7g8 70.Le2g4 Lg8h7+ 71.Kd3e3
Tc7e7 72.Lg4h3 Lh7c2 73.Tg5g1 Lc2e4 74.Tg1c1 Te7e8 75.Tc1g1
 13/24	00:00	     209.973	303.868	+1,15	69.Tg1g5 Lf7g8 70.Le2g4 Lg8h7+ 71.Kd3e3
Tc7e7 72.Lg4h3 Lh7e4 73.Tg5g1 Te7c7
 14/29	00:01	     316.206	319.077	+1,18	69.Tg1g5 Lf7g8 70.Le2g4 Lg8h7+ 71.Kd3e3
Tc7e7 72.Lg4h3 Kb6c6 73.Tg5g1 Kc6d7 74.Tg1f1
 15/30	00:01	     501.098	345.108	+1,16	69.Tg1g5 Lf7g8 70.Le2g4 Lg8h7+ 71.Kd3e3
Tc7e7 72.Lg4h3 Lh7e4 73.Tg5g1 Kb6c6
 16/33	00:03	   1.362.907	373.911	+1,17	69.Tg1g5 Lf7g8 70.Le2g4 Lg8h7+ 71.Kd3e2
Tc7e7 72.Lg4h3 Lh7e4 73.Tg5g1
 17/33	00:05	   2.211.988	388.204	+1,28	69.Tg1g5 Lf7g8 70.Le2g4 Lg8h7+ 71.Kd3e2
Tc7e7 72.h5h6 g7xh6 73.Tg5h5 Kb6c7 74.Th5xh6 Lh7g8 75.Ke2e3 Lg8f7 76.Ke3d3 Kc7d7
77.Kd3e3
 17/33+	00:06	   2.420.141	387.284	+1,29	69.Tg1xg7
 17/33+	00:06	   2.436.108	387.360	+1,64	69.Tg1xg7
 17/33	00:06	   2.650.340	393.809	+4,14	69.Tg1xg7 Lf7xh5 70.Tg7xc7 Lh5g6+
71.Kd3d2 Kb6xc7 72.Le2xb5 Lg6f5 73.Lb5xa4 Lf5h3
 18/27	00:07	   2.905.075	394.657	+4,19	69.Tg1xg7 Lf7xh5 70.Tg7xc7 Lh5g6+
71.Kd3d2 Kb6xc7 72.Le2xb5 Lg6h5 73.Lb5xa4 Lh5d1
 19/27	00:08	   3.342.826	397.387	+4,22	69.Tg1xg7 Lf7xh5 70.Tg7xc7 Lh5g6+
71.Kd3d2 Kb6xc7 72.Le2xb5 Lg6f7 73.Lb5xa4 Lf7e8
 20/28	00:10	   3.952.304	403.543	+4,30	69.Tg1xg7 Lf7xh5 70.Tg7xc7 Lh5g6+
71.Kd3d2 Kb6xc7 72.Le2xb5 Kc7b8 73.Lb5xa4 Lg6f5
 21/28	00:12	   4.877.095	410.979	+4,49	69.Tg1xg7 Lf7xh5 70.Tg7xc7 Lh5g6+
71.Kd3d2 Kb6xc7 72.Le2xb5 Lg6f7 73.Lb5xa4 Kc7b6
 22/30	00:15	   6.241.441	418.018	+4,72	69.Tg1xg7 Lf7xh5 70.Tg7xc7 Lh5g6+
71.Kd3d2 Kb6xc7 72.Le2xb5 Kc7b8 73.Lb5xa4 Lg6f7

Other engines have more trouble finding this move though...

Things get a little harder when going to the move prior to this one.

Avoid 68...Bf7?

[D]4b3/2r3p1/1k2p3/1p1pP2P/pP1P4/P2K4/4B3/6R1 b - - 53 68

FEN: 4b3/2r3p1/1k2p3/1p1pP2P/pP1P4/P2K4/4B3/6R1 b - - 53 68

Shredder 9.02:
  1/2-	00:00	           2	200	-3,86	68. ... Le8g6+
  1/2-	00:00	           4	400	-5,09	68. ... Le8g6+
  1/2	00:00	          10	1.000	-5,19	68. ... Le8g6+ 69.h5xg6
  1/2+	00:00	          15	1.500	-0,93	68. ... Kb6c6
  1/2	00:00	          16	1.600	-0,93	68. ... Kb6c6
  2/5	00:00	          73	3.650	-1,07	68. ... Kb6c6 69.Tg1c1+ Kc6d7 70.Tc1xc7+
Kd7xc7
  2/5+	00:00	         136	6.800	-0,99	68. ... Le8c6
  2/5	00:00	         138	6.900	-0,99	68. ... Le8c6 69.Tg1g6
  2/5+	00:00	         166	8.300	-0,96	68. ... Kb6a6
  2/5	00:00	         168	8.400	-0,96	68. ... Kb6a6 69.Kd3e3
  3/6	00:00	         345	8.625	-0,96	68. ... Kb6a6 69.Tg1f1 Ka6b6
  3/7+	00:00	         587	14.675	-0,94	68. ... Le8f7
  3/7	00:00	         616	15.400	-0,94	68. ... Le8f7 69.Kd3d2 Lf7e8
  4/9	00:00	       1.227	20.450	-0,89	68. ... Le8f7 69.Tg1f1 Lf7e8 70.Le2g4
  5/9	00:00	       3.125	44.642	-0,97	68. ... Le8f7 69.Le2f3 Lf7e8 70.Tg1g5
Kb6c6
  5/9+	00:00	       4.773	53.033	-0,96	68. ... Kb6c6
  5/10	00:00	       5.530	61.444	-0,96	68. ... Kb6c6 69.Kd3e3 Kc6b6 70.Ke3d2
Kb6c6
  6/10	00:00	       8.069	73.354	-1,03	68. ... Kb6c6 69.Le2g4 Kc6d7 70.Lg4f3
Kd7d8 71.Kd3e3
  6/11+	00:00	       8.701	72.508	-1,02	68. ... Le8f7
  6/11	00:00	       9.427	72.515	-0,92	68. ... Le8f7 69.Le2f3 Lf7e8 70.Kd3e3
Kb6a6 71.Tg1g5
  7/13	00:00	      18.782	110.482	-0,98	68. ... Le8f7 69.Kd3d2 Lf7e8 70.Tg1g3
Kb6a6 71.Tg3g5 Ka6b6
  8/13	00:00	      27.195	135.975	-0,97	68. ... Le8f7 69.Le2g4 Tc7c8
  9/14	00:00	      41.496	172.900	-1,07	68. ... Le8f7 69.Le2g4 Tc7c8 70.Lg4h3
Tc8h8 71.Tg1xg7 Th8xh5 72.Lh3g4 Th5h4
  9/15+	00:00	      62.501	208.336	-1,06	68. ... Tc7f7
  9/15	00:00	      70.313	213.069	-1,06	68. ... Tc7f7 69.Le2g4
 10/16	00:00	      94.938	237.345	-0,98	68. ... Tc7f7 69.Kd3e3 Tf7c7 70.Ke3d2
Tc7f7
 11/22	00:00	     122.904	256.050	-1,04	68. ... Tc7f7 69.Le2g4 Le8d7 70.Kd3e3
Ld7c8 71.Tg1c1 Tf7c7 72.Tc1c5 Lc8d7 73.Ke3d3 Tc7c6
 11/22+	00:00	     136.809	263.094	-1,03	68. ... Le8f7
 11/22	00:00	     140.853	260.838	-1,03	68. ... Le8f7 69.Le2g4 Lf7e8
 12/24	00:01	     310.386	316.397	-0,97	68. ... Le8f7 69.Kd3d2 Lf7e8 70.Le2g4
Le8f7 71.Lg4d1 Lf7e8 72.Ld1e2
 13/20	00:01	     423.627	338.630	-1,20	68. ... Le8f7 69.Le2g4 Kb6b7 70.Lg4h3
Lf7xh5 71.Lh3xe6
 13/20+	00:01	     449.977	340.375	-1,19	68. ... Tc7f7
 13/20	00:01	     515.846	348.074	-1,08	68. ... Tc7f7 69.Le2g4 Le8d7 70.Kd3e3
Ld7c8 71.Tg1c1 Tf7c7 72.Tc1c5 Lc8d7 73.Lg4e2 Ld7c6 74.Le2d3 Lc6e8
 14/24	00:02	     663.021	361.911	-1,12	68. ... Tc7f7 69.Le2g4 Le8d7 70.Kd3e3
Ld7c8 71.Lg4h3 Tf7c7 72.Ke3d2 Tc7c4 73.Tg1xg7 Tc4xd4+ 74.Kd2e3 Td4h4 75.Lh3g4
Th4h2
 14/24+	00:02	     704.493	358.885	-1,11	68. ... Le8f7
 14/26	00:02	     749.228	361.422	-1,11	68. ... Le8f7 69.Le2g4 Lf7e8
 15/29	00:03	   1.101.240	375.337	-1,10	68. ... Le8f7 69.Le2g4 Tc7c6 70.Lg4f3
Tc6c7 71.Tg1g5 Lf7g8 72.Kd3e3 Lg8h7 73.Lf3g4
 16/29	00:04	   1.694.089	384.495	-1,24	68. ... Le8f7 69.Kd3d2 Lf7e8 70.Le2g4
Tc7c6 71.Lg4f3 Tc6c7 72.Tg1g5 Tc7e7 73.Kd2d3
 17/30	00:05	   2.113.063	387.860	-1,24	68. ... Le8f7 69.Kd3d2 Lf7e8 70.Le2g4
Tc7c6 71.Kd2d3 Le8f7 72.Lg4f3 Tc6c7 73.Kd3d2 Lf7e8
 18/38	00:07	   3.018.243	388.398	-1,25	68. ... Le8f7 69.Kd3d2 Lf7e8 70.Le2g4
Le8f7 71.Lg4h3 Lf7xh5 72.Lh3xe6 Lh5f3 73.Tg1g6 Lf3h5 74.Tg6g3
 19/30-	00:09	   3.779.803	391.933	-1,50	68. ... Le8f7 69.Kd3d2
 19/30-	00:09	   3.805.026	392.109	-2,00	68. ... Le8f7 69.Kd3d2
 19/37	00:28	  10.848.828	386.491	-4,12	68. ... Le8f7 69.Tg1xg7 Lf7xh5 70.Tg7xc7
Lh5g6+ 71.Kd3d2 Kb6xc7 72.Le2xb5 Lg6e4 73.Lb5xa4 Le4g2
 19/37+	00:28	  11.070.663	386.531	-4,11	68. ... Tc7f7
 19/37+	00:29	  11.320.000	387.379	-3,76	68. ... Tc7f7
 19/40	01:05	  24.458.371	375.283	-1,25	68. ... Tc7f7 69.Le2g4 Le8d7 70.Lg4d1
Ld7e8 71.Tg1g6 Tf7e7 72.Tg6g5 Le8d7 73.Ld1e2 Kb6c6 74.Tg5g6 Ld7e8 75.Tg6g5
 20/38	01:10	  26.543.434	375.113	-1,27	68. ... Tc7f7 69.Le2g4 Le8d7 70.Lg4d1
Ld7e8 71.Tg1g6 Tf7e7 72.Tg6g5 Le8d7 73.Ld1g4 Kb6c6 74.Kd3c3 Kc6b6 75.Tg5g6
 21/38	01:20	  30.182.588	374.869	-1,27	68. ... Tc7f7 69.Le2g4 Le8d7 70.Lg4d1
Kb6c6 71.Tg1g6 Tf7e7
 22/38	01:39	  37.331.535	374.728	-1,25	68. ... Tc7f7 69.Le2g4 Le8d7 70.Lg4d1
Ld7e8 71.Tg1g6 Tf7e7 72.Tg6g5 Le8xh5
 23/44	02:02	  45.459.323	371.260	-1,25	68. ... Tc7f7 69.Le2g4 Le8d7 70.Lg4d1
Ld7e8 71.Tg1g6 Tf7e7 72.Tg6g5 Kb6c6 73.Kd3e3 Kc6d7 74.Ke3d2 Kd7c6 75.Ld1g4
 24/46	02:32	  56.222.555	368.095	-1,26	68. ... Tc7f7 69.Le2g4 Le8d7 70.Lg4d1
Ld7e8 71.Tg1g6 Tf7e7 72.Tg6g5 Kb6c6 73.Kd3e3 Kc6d7 74.Ke3d2 Te7f7 75.Ld1g4 Kd7c8
 25/44	03:25	  74.675.638	363.978	-1,28	68. ... Tc7f7 69.Le2g4 Le8d7 70.Lg4d1
Ld7e8 71.Tg1g6 Tf7e7 72.Tg6g5 Kb6c6 73.Kd3e3 Kc6d7 74.Ke3d2 Te7f7 75.Ld1g4 Tf7e7
76.Kd2c3 Kd7c8 77.Lg4h3 Le8d7 78.Tg5g6 Kc8c7
 26/48	04:42	 101.672.230	360.238	-1,26	68. ... Tc7f7 69.Le2g4 Le8d7 70.Lg4d1
Ld7e8 71.Tg1g6 Tf7e7 72.Tg6g5 Kb6c6 73.Kd3e3 Kc6d7 74.Ke3d2 Te7f7 75.Ld1g4 Tf7e7
76.Kd2c3 Kd7c8 77.Lg4h3 Le8d7 78.Tg5g6 Kc8c7

Here's the complete game:

[Event "A-4 League"]
[Site "ARAMIS"]
[Date "2005.04.29"]
[Round "2"]
[White "Shredder 9.02"]
[Black "Fruit 2.0"]
[Result "1-0"]
[ECO "A95"]
[Opening "Holländisch"]
[Time "normal"]
[Variation "Stonewall, Chekhover-Variante"]
[TimeControl "40/1200:40/1200:40/1200"]
[Termination "normal"]
[PlyCount "160"]
[WhiteType "program"]
[BlackType "program"]

1.Nf3 e6 2.d4 f5 3.g3 Nf6 4.Bg2 d5 5.O-O Be7 6.c4 O-O 7.Nc3 c6 8.Qc2 Ne4
9.Ne5 Nd7 {-0.23/14 43} 10.Nxe4 fxe4 {-0.22/13 27} 11.Bf4 Nxe5 {-0.08/14
31} 12.Bxe5 {+0.02/13 6} 12...Bd6 {-0.11/14 35} 13.Bxd6 {+0.30/15 50}
13...Qxd6 {-0.08/13 13} 14.f3 {+0.36/17 75} 14...exf3 {-0.21/14 40} 15.
Rxf3 {+0.36/17 22} 15...Bd7 {-0.19/14 26} 16.Qc3 {+0.33/16 57} 16...b6 {
-0.17/13 31} 17.Raf1 {+0.17/15 34} 17...Rxf3 {-0.23/14 46} 18.Rxf3 {
+0.18/13 6} 18...Be8 {-0.06/13 38} 19.cxd5 {+0.42/17 44} 19...cxd5 {
-0.19/16 52} 20.Qa3 {+0.64/17 44} 20...Qxa3 {-0.25/16 26} 21.Rxa3 {
+0.42/15 6} 21...Kf8 {-0.24/16 43} 22.Kf2 {+0.55/18 54} 22...Ke7 {-0.17/17
37} 23.e4 {+0.57/19 42} 23...Bc6 {-0.15/17 44} 24.Ke3 {+0.58/18 29} 24...
Kd7 {-0.15/17 36} 25.h4 {+0.56/19 72} 25...h6 {-0.12/16 33} 26.e5 {
+0.62/20 42} 26...Bb5 {-0.09/17 23} 27.Bh3 {+0.63/20 29} 27...a6 {-0.14/18
36} 28.Rb3 {+0.71/19 9} 28...Rb8 {-0.16/19 24} 29.Kd2 {+0.67/20 45} 29...
h5 {-0.18/17 24} 30.g4 {+0.71/21 83} 30...hxg4 {-0.27/18 40} 31.Bxg4 {
+0.79/21 51} 31...Ke7 {-0.27/18 41} 32.Rg3 {+0.84/20 38} 32...Rh8 {
-0.31/17 51} 33.h5 {+0.87/19 35} 33...Rf8 {-0.40/17 57} 34.Bh3 {+0.99/18
32} 34...Rf7 {-0.48/17 32} 35.Rg6 {+1.06/19 58} 35...Bd7 {-0.48/17 32} 36.
Bg4 {+1.22/21 32} 36...Rf2+ {-0.48/19 55} 37.Ke3 {+1.22/23 32} 37...Rf7 {
-0.48/20 26} 38.Kd3 {+1.22/22 73} 38...a5 {-0.48/19 28} 39.Kc3 {+1.42/21
28} 39...b5 {-0.48/18 32} 40.a3 {+1.33/21 25} 40...Bc8 {-0.55/20 77} 41.b4
{+1.42/22 30} 41...a4 {-0.50/21 34} 42.Kd3 {+1.42/23 25} 42...Bd7 {
-0.54/21 44} 43.Ke3 {+1.43/23 20} 43...Bc8 {-0.51/19 9} 44.Bh3 {+1.41/23
21} 44...Bd7 {-0.51/22 10} 45.Bg4 {+1.42/24 34} 45...Bc8 {0.00/25 12} 46.
Kd3 {+1.41/24 50} 46...Bd7 {0.00/25 11} 47.Ke2 {+1.42/25 30} 47...Bc8 {
-0.51/21 12} 48.Ke3 {+1.40/25 41} 48...Bd7 {-0.50/20 12} 49.Kd3 {+1.40/24
22} 49...Bc8 {-0.51/20 26} 50.Ke2 {+1.40/25 27} 50...Bd7 {-0.49/20 27} 51.
Bh3 {+1.32/24 45} 51...Bc8 {-0.50/21 31} 52.Kd2 {+1.32/23 56} 52...Rf2+ {
-0.50/20 32} 53.Ke1 {+1.32/22 23} 53...Rf7 {-0.50/20 16} 54.Ke2 {+1.20/22
30} 54...Bd7 {-0.49/20 12} 55.Bg4 {+1.25/20 6} 55...Bc8 {0.00/22 10} 56.
Bh3 {+1.21/23 60} 56...Bd7 {0.00/24 8} 57.Ke3 {+1.21/22 24} 57...Bc8 {
-0.49/21 19} 58.Bg4 {+1.20/20 7} 58...Bd7 {0.00/25 7} 59.Be2 {+1.27/23 51}
59...Kd8 {-0.49/23 31} 60.Bf3 {+1.27/22 24} 60...Kc7 {-0.49/22 26} 61.Bg4
{+1.28/22 21} 61...Re7 {-0.49/22 35} 62.Rg5 {+1.24/25 44} 62...Be8 {
-0.48/21 24} 63.Be2 {+1.22/23 24} 63...Kb6 {-0.49/20 26} 64.Kd2 {+1.20/23
33} 64...Rf7 {-0.48/20 40} 65.Ke1 {+1.22/20 33} 65...Rc7 {-0.48/20 32} 66.
Kd2 {+1.21/22 28} 66...Rf7 {0.00/24 30} 67.Kd3 {+1.20/21 33} 67...Rc7 {
-0.48/20 26} 68.Rg1 {+1.22/22 28} 68...Bf7 {-0.49/19 27} 69.Rxg7 {+5.02/25
43} 69...Bxh5 {-2.07/23 37} 70.Rxc7 {+5.19/25 23} 70...Bg6+ {-4.24/29 28}
71.Kd2 {+5.58/26 12} 71...Kxc7 {-4.74/30 47} 72.Bxb5 {+5.21/22 6} 72...Be4
{-4.76/28 65} 73.Bxa4 {+5.71/23 26} 73...Bg6 {-4.76/26 41} 74.Bd1 {
+6.17/23 21} 74...Bf5 {-4.76/25 51} 75.Kc3 {+7.10/22 22} 75...Kd7 {
-4.80/23 43} 76.b5 {+11.19/23 31} 76...Bg6 {-10.71/26 116} 77.Kb4 {
+12.24/23 58} 77...Be4 {-10.71/21 22} 78.Be2 {+18.76/20 26} 78...Bf5 {
-13.23/21 50} 79.a4 {+30.31/20 40} 79...Bg6 {-14.24/21 26} 80.b6 {
+31.09/20 23} 80...Kd8 {Schwarz gibt auf} 1-0

Cheers,

Martin



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