Author: Joost Buijs
Date: 13:27:47 08/25/05
Go up one level in this thread
Hi Sedat,
I tested the position on both the 4400 and the dual Opteron 270.
As you can see Shredder gives very messy output, it has lots of search
instability's, it is not even consistent about the mate depth.
I hope you can get something out of this information.
First the 4400:
rq2b1k1/p2Rp2p/1p2np1Q/2p5/2P1P3/P4PN1/2P2PKP/3R4 w - -
Engine: Deep Shredder 9 x64 (64 MB)
by Stefan Meyer-Kahlen
11/30 0:00 +9.71++ 1.Rxe7 Bg6 (598.381) 1233
11/35 0:01 +16.02 1.Rxe7 Bg6 2.Rxh7 Nf4+ 3.Kh1 Qf8
4.Rh8+ Kf7 5.Rxf8+ Rxf8 6.Qxf4 Kg8
7.Qh6 (1.991.631) 1313
12/34 0:01 +16.27++ 1.Rxe7 Bg6 (2.311.888) 1309
12/34 0:01 +16.77++ 1.Rxe7 Bg6 (2.451.114) 1307
12/37 0:02 +16.78 1.Rxe7 Bg6 2.Rxh7 Nf4+ 3.Kh1 Qf8
4.Rh8+ Kf7 5.Rxf8+ Rxf8 6.Qxf4 Re8
7.Rd7+ Re7 8.Rxe7+ Kxe7 9.Qc7+ Kf8
10.Qxa7 Bf7 11.Qxb6 Kg7 (3.317.057) 1360
13/32 0:02 +17.03++ 1.Rxe7 Bg6 (3.899.722) 1363
13/34 0:03 +17.53++ 1.Rxe7 Bg6 (4.208.902) 1360
13/40 0:04 +20.78 1.Rxe7 Bg6 2.Rxh7 Nf4+ 3.Kh1 Qf8
4.Rh8+ Kf7 5.Rxf8+ Rxf8 6.Qxf4 Kg8
7.Qh6 Kf7 8.Rd7+ Ke8 9.Rxa7 Rg8
10.Ra8+ Kf7 11.Rxg8 (6.515.105) 1385
14/38 0:05 +21.03++ 1.Rxe7 Bg6 (7.559.751) 1382
14/38 0:05 +21.53++ 1.Rxe7 Bg6 (7.976.485) 1379
14/41 0:13 +M165++ 1.Rxe7 Qb7 2.Qxh7+ Kf8 3.Rxb7 Nf4+
4.Kg1 Bd7 5.Rbxd7 Nh3+ 6.Qxh3 f5 (18.905.883) 1385
15/36 0:23 +M164++ 1.Rxe7 Qc7 2.Rxc7 Nf4+ 3.Qxf4 Rb8 (32.325.517) 1389
16/40 0:23 +M162++ 1.Rxe7 Qc7 2.Rxc7 Bf7 3.Nh5 Nf4+
4.Qxf4 f5 (32.786.052) 1391
17/34 0:24 +M161++ 1.Rxe7 Qf4 2.Qxh7+ Kf8 3.Rxe6 Bg6
4.Qxg6 Qxf3+ 5.Kxf3 a6 (33.744.746) 1397
18/49 0:27 +M151++ 1.Rxe7 Bg6 2.Rxh7 Nf4+ 3.Kh1 Qf8 (38.957.986) 1416
19/44 0:28 +M150++ 1.Rxe7 Bg6 2.Rxh7 Nf4+ 3.Kh1 Qf8
4.Rh8+ Kf7 5.Rxf8+ Rxf8 6.Nf5 Bxf5
7.exf5 Ne6 8.fxe6+ Kxe6 9.Re1+ Kd7 (40.398.608) 1428
20/48 0:29 +M150++ 1.Rxe7 Bg6 2.Rxh7 Nf4+ 3.Kh1 Qf8
4.Rh8+ Kf7 5.Rxf8+ Rxf8 6.Nf5 Bxf5
7.exf5 Ke7 8.Qxf4 Re8 9.Qh6 Kf7
10.Rd7+ Re7 11.Qh7+ Ke8 (41.932.328) 1436
21/52 8:26 +M150++ 1.Rxe7 Qf4 2.Qxh7+ Kf8 3.Rxe6 Qh4 (666.300.322) 1316
22/50 8:40 +M13 1.Rxe7 Bg6 2.Rxh7 Nf4+ 3.Kh1 Qf8
4.Rh8+ Kf7 5.Rxf8+ Rxf8 6.Nf5 Bxf5
7.exf5 Ke7 8.Qxf4 Re8 9.Qh6 Kf7
10.Rd7+ Re7 11.Qh7+ Kf8 12.Rxe7 (689.112.193) 1323
23/40 8:43 +M13 1.Rxe7 Bg6 2.Rxh7 Nf4+ 3.Kh1 Qf8
4.Rh8+ Kf7 5.Rxf8+ Rxf8 6.Nf5 Bxf5
7.exf5 Ke7 8.Qxf4 Re8 9.Qh6 Kf7
10.Rd7+ Re7 11.Qh7+ Kf8 12.Rxe7 b5
13.Qg7+ (694.005.045) 1326
24/40 8:45 +M13 1.Rxe7 Bg6 2.Rxh7 Nf4+ 3.Kh1 Qf8
4.Rh8+ Kf7 5.Rxf8+ Rxf8 6.Nf5 Bxf5
7.exf5 Ke7 8.Qxf4 Re8 9.Qh6 Kf7
10.Rd7+ Re7 11.Qh7+ Kf8 12.Rxe7 b5
13.Qg7+ (699.137.755) 1330
25/32 8:48 +M13 1.Rxe7 Bg6 2.Rxh7 Nf4+ 3.Kh1 Qf8
4.Rh8+ Kf7 5.Rxf8+ Rxf8 6.Nf5 Bxf5
7.exf5 Ke7 8.Qxf4 Re8 9.Qh6 Kf7
10.Rd7+ Re7 11.Qh7+ Kf8 12.Rxe7 b5
13.Qg7+ (705.026.227) 1333
best move: Rd7xe7 time: 8:49.734 min n/s: 1.334.706 CPU 199.7% nodes:
707.019.139
Second the dual Opteron 270:
rq2b1k1/p2Rp2p/1p2np1Q/2p5/2P1P3/P4PN1/2P2PKP/3R4 w - -
Engine: Deep Shredder 9 x64 (64 MB)
by Stefan Meyer-Kahlen
11/28 0:01 +9.71++ 1.Rxe7 Bg6 (920.278) 754
11/35 0:01 +15.79 1.Rxe7 Bg6 2.Rxh7 Qe8 3.Rdd7 Qxd7
4.Rxd7 (2.205.873) 1249
12/32 0:01 +16.04++ 1.Rxe7 Bg6 (2.541.861) 1322
12/36 0:02 +16.54++ 1.Rxe7 Bg6 (3.773.575) 1568
12/38 0:05 +M168++ 1.Rxe7 Qd6 2.Rxd6 Nf4+ 3.Qxf4 Bf7 (10.657.206) 1937
13/32 0:05 +M168++ 1.Rxe7 Qb7 2.Rxb7 Bg6 3.Nf5 Nf4+
4.Qxf4 Bxf5 (10.862.932) 1952
14/34 0:06 +M163++ 1.Rxe7 Qc7 2.Rxc7 Nf4+ 3.Qxf4 Bd7 (12.527.488) 1994
15/36 0:07 +M158++ 1.Rxe7 Qe5 2.Qxh7+ Kf8 (16.215.712) 2063
16/46 0:43 +M151++ 1.Rxe7 Qxg3+ 2.fxg3 (89.498.797) 2059
17/48 1:29 +M152++ 1.Rxe7 Bg6 2.Rxh7 Nf4+ 3.Kh1 Qf8
4.Rh8+ Kf7 5.Rxf8+ Rxf8 6.Nf5 Ke6
7.Qxf4 (196.296.057) 2185
18/48 1:36 +M152++ 1.Rxe7 Bg6 2.Rxh7 Nf4+ 3.Kh1 Qf8
4.Rh8+ Kf7 5.Rxf8+ Rxf8 6.Nf5 Bxf5
7.exf5 Nd5 8.cxd5 c4 9.Qh7+ Ke8
10.Qxa7 Rh8 11.d6 Rxh2+ 12.Kxh2 Kf8 (212.195.178) 2199
19/42 1:37 +M151++ 1.Rxe7 Bg6 2.Rxh7 Nf4+ 3.Kh1 Qf8
4.Rh8+ Kf7 5.Rxf8+ Rxf8 6.Nf5 Bxf5
7.exf5 Nd5 8.cxd5 Rg8 9.Qh7+ Rg7 (214.362.187) 2204
20/52 1:37 +M150++ 1.Rxe7 Bg6 2.Rxh7 Nf4+ 3.Kh1 Qf8
4.Rh8+ Kf7 5.Rxf8+ Rxf8 6.Nf5 Bxf5
7.exf5 Nd5 8.cxd5 Rg8 9.Qh7+ Rg7
10.Qh5+ Kf8 11.Re1 Rg8 (216.655.458) 2211
21/54 2:04 +M150++ 1.Rxe7 Qf4 2.Qxh7+ Kf8 3.Rdd7 Qxf3+
4.Kg1 Qd1+ 5.Rxd1 Bg6 6.Qxg6 Kxe7 (290.635.127) 2343
22/48 2:49 +M14 1.Rxe7 Bg6 2.Rxh7 Nf4+ 3.Kh1 Qf8
4.Rh8+ Kf7 5.Rxf8+ Rxf8 6.Nf5 Bxf5
7.exf5 Ke7 8.Qxf4 Re8 9.Qc7+ Kf8
10.Rg1 Re2 11.Rg7 Re1+ 12.Kg2 Rg1+
13.Kxg1 b5 14.Qf7+ (396.051.765) 2343
23/48 2:54 +M12 1.Rxe7 Bg6 2.Rxh7 Nf4+ 3.Kh1 Qf8
4.Rh8+ Kf7 5.Rxf8+ Rxf8 6.Nf5 Bxf5
7.exf5 Ke7 8.Re1+ Ne6 (412.202.686) 2355
best move: Rd7xe7 time: 2:55.515 min n/s: 2.357.338 CPU 397.7% nodes:
413.675.133
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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