Author: Uri Blass
Date: 07:28:07 02/25/05
Go up one level in this thread
On February 25, 2005 at 09:13:20, Joachim Rang wrote: >On February 25, 2005 at 00:00:44, Terry McCracken wrote: > >>Does your program find Be2+!....? >> >>[D]8/8/8/1k6/4p1B1/8/P2K1p2/8 w - - 0 56 >> >>Terry > >interesting that Shredder 9 has huge problems with this position. If you force >Be2 Shredder 9 realizes pretty soon that white wins. Fruit 2.0 has no problem >with this position and gets a winning score pretty soon (on Pentium M 1.6 GHz): > > > >8/8/8/1k6/4p1B1/8/P2K1p2/8 w - - > >Engine: Really Shredder 9? (128 MB) >von Stefan Meyer-Kahlen > >17/26 0:01 +0.66 1.Ke2 e3 2.Ld7+ Kc5 3.Le8 Kb6 4.Kf1 Ka6 > 5.Lg6 Kb6 6.Le4 Kc5 7.Ke2 Kb5 8.Lf5 Ka4 > 9.Ld3 Ka3 (1.559.416) 1418 > >18/26 0:01 +0.66 1.Ke2 e3 2.Ld7+ Kc5 3.Le8 Kb6 4.Kf1 Kc5 > 5.a4 Kb4 6.Lc6 Kc5 7.Lb5 Kb6 8.Ld7 Ka6 > 9.Lc6 Ka5 10.Ke2 (1.972.656) 1437 > >19/28 0:01 +0.66 1.Ke2 e3 2.Ld7+ Kc5 3.Le8 Kb6 4.Kf1 Kc5 > 5.Ld7 Kb4 6.Le6 Ka4 7.Ke2 Kb4 8.Lf5 Ka3 > 9.Lb1 Kb4 10.Ld3 Ka3 (2.613.881) 1478 > >20/28 0:02 +0.66 1.Ke2 e3 2.Ld7+ Kc5 3.Le8 Kb6 4.Kf1 Kc5 > 5.Ld7 Kb4 6.Le6 Ka4 7.Lb3+ Kb4 8.Ke2 Kb5 > 9.Lc2 Kc4 10.Lf5 Kb4 11.Ld3 Ka3 (3.428.985) 1507 > >21/30 0:03 +0.66 1.Ke2 e3 2.Ld7+ Kc5 3.Le8 Kb6 4.Kf1 Kc5 > 5.Ld7 Kb4 6.Le6 Ka4 7.Ke2 Kb4 8.Ld5 Ka4 > 9.Le4 Ka3 10.Lb1 Kb4 11.Ld3 Ka3 (4.467.539) 1398 > >22/30 0:03 +0.66 1.Ke2 e3 2.Ld7+ Kc5 3.Le8 Kb6 4.Kf1 Kc5 > 5.Ld7 Kb4 6.Le6 Ka4 7.Ke2 Kb4 8.Ld5 Ka4 > 9.Lb3+ Kb5 10.Lc2 Kc4 11.Lf5 Kb4 > 12.Ld3 Ka3 (5.585.172) 1441 > >22/38 0:05 +0.72 1.Le2+ Ka4 2.Kc2 Ka3 3.Kb1 e3 4.Ka1 Kb4 > 5.Kb2 Ka4 6.a3 Ka5 7.Kb3 Kb6 8.Kb4 Kc6 > 9.a4 Kd5 10.a5 Kc6 11.Kc4 Kb7 12.Kd4 (7.617.873) 1426 > >23/38 0:06 +2.30 1.Le2+ Ka4 2.Kc2 Ka3 3.Kb1 e3 4.Ka1 Ka4 > 5.Kb2 Kb4 6.a3+ Ka4 7.Ld3 Ka5 8.Kb3 Kb6 > 9.Kb4 Kc6 10.Kc4 e2 11.Lxe2 Kb6 > 12.Kd4 Kc6 13.a4 (10.145.497) 1444 > >24/38 0:09 +2.40 1.Le2+ Ka4 2.Kc2 Ka3 3.Kb1 e3 4.Ka1 Ka4 > 5.Kb2 Kb4 6.a3+ Ka4 7.Lf1 Ka5 8.Kb3 Kb6 > 9.Kb4 Kc6 10.a4 Kd6 11.Kc4 e2 > 12.Lxe2 Ke5 13.a5 Kd6 (14.423.713) 1472 > >25/38 0:14 +2.71 1.Le2+ Ka4 2.Kc2 Ka3 3.Kb1 e3 4.Ka1 Ka4 > 5.Kb2 Kb4 6.a3+ Ka4 7.Ka2 Ka5 8.Kb3 Kb6 > 9.Kb4 Kc6 10.a4 Kd5 11.a5 Kc6 12.Kc4 Kc7 > 13.Kd4 Kd6 14.Kxe3 (22.584.691) 1537 > >26/44 0:32 +4.73 1.Le2+ Ka4 2.Kc2 Ka3 3.Kb1 e3 4.Ka1 Ka4 > 5.Kb2 f1D 6.Lxf1 Kb4 7.Le2 Ka4 8.a3 Ka5 > 9.Kb3 Kb6 10.Kc3 Kc6 11.Kd4 Kb6 > 12.Kxe3 Kc5 13.Ld3 Kd6 14.a4 (51.855.420) 1581 > >27/44 0:52 +4.74 1.Le2+ Ka4 2.Kc2 Ka3 3.Kb1 e3 4.Ka1 Ka4 > 5.Kb2 Kb4 6.a3+ Ka4 7.Ka2 Ka5 8.Kb3 Kb6 > 9.Kb4 Kc6 10.a4 Kd5 11.a5 Kc6 12.Kc4 Kc7 > 13.Kd4 Kd6 14.Kxe3 (85.765.283) 1649 > >28/51 2:25 +5.01 1.Le2+ Ka4 2.Kc2 Ka3 3.Kb1 e3 4.Ka1 Ka4 > 5.Kb2 Kb4 6.a3+ Ka4 7.Ka2 Ka5 8.Kb3 Kb6 > 9.Kb4 Kc6 10.a4 Kd5 11.a5 Kc6 12.Kc3 Kd5 > 13.a6 Kc6 14.Kd3 (243.827.288) 1680 > >Bester Zug: Lg4-e2 Zeit: 2:37.316 min K/s: 1.690.945 CPU 100.0% K/s(1CPU): >1.690.945 Knoten: 265.590.000 Some analysis by shredder9(A3000 512 mbytes hash) It suffers from an horrible branching factor and cannot complete depth 34 even after 22 minutes so it seems that even being 250 times faster cannot help shredder to get to fruit's level(5*250=1250 seconds<22 minutes) New game, 8/8/8/1k6/4p1B1/8/P2K1p2/8 w - - 0 1 Analysis by Shredder 9 UCI: 1.Ke2 +- (2.60) Depth: 1/1 00:00:00 1.Bd7+ Kc5 2.Bh3 Kd4 +- (2.11) Depth: 1/1 00:00:00 1.Bd7+ Kc5 2.Bh3 Kd4 +- (2.11) Depth: 3/6 00:00:00 1.Bd7+ Kc5 2.Bh3 Kd4 +- (2.11) Depth: 3/6 00:00:00 1.Bd7+ Kc5 2.Bh3 Kd4 +- (2.11) Depth: 3/6 00:00:00 1.Bd7+ Kc5 2.Bh3 Kd4 +- (2.11) Depth: 3/6 00:00:00 1.Bd7+ Kc5 2.Bh3 Kd4 +- (2.11) Depth: 3/6 00:00:00 1.Bd7+ Kc5 2.Bh3 Kd4 +- (2.11) Depth: 3/6 00:00:00 1.Bd7+ Kc5 2.Bh3 Kd4 +- (2.11) Depth: 3/6 00:00:00 1.Bd7+ Kc5 2.Bh3 Kd4 +- (2.11) Depth: 3/6 00:00:00 1.Bd7+ Kc5 2.Bh3 Kd4 +- (2.11) Depth: 3/6 00:00:00 1.Bd7+ Kc5 2.Bh3 Kd4 +- (2.11) Depth: 3/6 00:00:00 1.Bd7+ Kc5 2.Bh3 Kd4 +- (2.11) Depth: 3/6 00:00:00 1.Be2+ +- (2.12) Depth: 3/6 00:00:00 1.Be2+ +- (2.64) Depth: 3/6 00:00:00 1.Be2+ Kb4 2.Ke3 Ka3 +- (2.74) Depth: 3/7 00:00:00 1.Be2+ Kb4 +- (2.39) Depth: 4/7 00:00:00 1.Be2+ Kb4 2.Ke3 Ka3 3.Bc4 +- (2.39) Depth: 4/7 00:00:00 1.Ke2 +- (2.50) Depth: 4/7 00:00:00 1.Ke2 +- (3.04) Depth: 4/7 00:00:00 1.Ke2 e3 2.Bh3 Kb4 3.Kxe3 +- (3.32) Depth: 4/7 00:00:00 1.Ke2 e3 +- (2.90) Depth: 5/9 00:00:00 1.Ke2 e3 +- (2.40) Depth: 5/9 00:00:00 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bc6 +- (1.75) Depth: 5/9 00:00:00 1.Be2+ +- (2.15) Depth: 5/9 00:00:00 1.Be2+ Kb4 2.Ke3 Ka3 3.Bc4 +- (2.39) Depth: 5/9 00:00:00 1.Be2+ Kb4 +- (2.14) Depth: 6/9 00:00:00 4kN 1.Be2+ Kb4 +- (1.64) Depth: 6/9 00:00:00 4kN 1.Be2+ Kb4 2.Ba6 e3+ 3.Ke2 Ka3 4.Bc4 Kb4 +- (1.54) Depth: 6/12 00:00:00 5kN 1.Be2+ Kb4 2.Ba6 e3+ 3.Ke2 Ka3 4.Bc4 Kb4 5.Bf7 Kc3 +- (1.47) Depth: 7/12 00:00:00 7kN 1.Ke2 +- (1.48) Depth: 7/12 00:00:00 8kN 1.Ke2 e3 2.Be6 Kb4 3.Kxe3 +- (1.48) Depth: 7/12 00:00:00 8kN 1.Ke2 e3 +- (1.73) Depth: 8/12 00:00:00 11kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bb5 Kb4 5.Bc6 +- (1.95) Depth: 8/12 00:00:00 12kN 1.Ke2 e3 +- (1.70) Depth: 9/13 00:00:01 17kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bb5 Kb4 5.Bc6 +- (1.68) Depth: 9/13 00:00:01 17kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bb5 Kb4 5.Bc6 Ka5 +- (1.68) Depth: 10/14 00:00:01 24kN 1.Ke2 e3 +- (1.93) Depth: 11/14 00:00:01 30kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bb5 Kb4 5.Bc6 Ka5 6.Bd7 Kb4 7.Bb5 +- (1.95) Depth: 11/15 00:00:01 35kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bb5 Kb4 5.Bc6 Ka5 6.Bd7 Kb4 +- (1.95) Depth: 12/15 00:00:01 44kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bb5 Kb4 5.Bc6 Ka5 6.Bd7 Kb4 +- (1.95) Depth: 13/15 00:00:02 61kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bb5 Kb4 5.Bc6 Ka5 6.Bd7 Kb4 +- (1.95) Depth: 14/16 00:00:02 76kN 1.Ke2 e3 2.Bd7+ Ka5 3.a4 Kb4 +- (1.94) Depth: 15/19 00:00:02 101kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka3 +- (1.94) Depth: 16/19 00:00:03 130kN 1.Ke2 e3 2.Bd7+ Ka5 3.a4 Kb4 +- (1.94) Depth: 17/22 00:00:03 163kN 1.Ke2 e3 2.Bd7+ Kc4 3.a4 Kb4 4.Bc6 Ka5 5.Bb5 Kb4 +- (1.95) Depth: 18/22 00:00:04 223kN 1.Ke2 e3 2.Bd7+ Kc4 3.a4 Kb4 4.Bc6 Ka5 5.Bb5 Kb4 +- (1.95) Depth: 19/22 00:00:05 325kN 1.Ke2 e3 2.Bd7+ Kc4 3.a4 Kb4 4.Bc6 Ka5 5.Bb5 Kb4 6.Bd7 Ka5 +- (1.95) Depth: 20/22 00:00:05 399kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bc6 Kb4 +- (1.94) Depth: 21/28 00:00:07 551kN 1.Ke2 e3 2.Bd7+ Kc4 3.a4 Kb4 4.Bc6 Ka3 +- (1.94) Depth: 22/28 00:00:08 724kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bc6 f1Q+ +- (1.94) Depth: 23/31 00:00:09 918kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bb5 Kb4 5.Kxe3 +- (1.96) Depth: 24/32 00:00:11 1237kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Be8 Ka6 5.Bb5+ Ka5 +- (1.99) Depth: 25/33 00:00:13 1745kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bc6 Kb4 5.Kxe3 +- (2.01) Depth: 26/33 00:00:15 2242kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bb5 Kb4 5.Bc6 Ka5 6.Bb5 Kb4 7.Bc6 Ka5 8.Bb5 +- (2.02) Depth: 27/36 00:00:18 3080kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bb5 Kb4 5.Bc6 +- (2.02) Depth: 28/38 00:00:19 3638kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bb5 Kb4 5.Bc6 Kc5 6.Be8 +- (2.02) Depth: 29/38 00:00:21 4508kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bb5 Kb4 5.Bc6 +- (2.02) Depth: 30/38 00:00:24 6545kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bb5 Kb4 5.Be8 +- (2.04) Depth: 31/42 00:00:32 11690kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bb5 Kb4 5.Be8 Ka5 6.Bb5 Kb4 7.Be8 Ka5 8.Bb5 +- (2.04) Depth: 32/45 00:00:36 15054kN 1.Ke2 e3 2.Bd7+ Kb4 3.a4 Ka5 4.Bb5 Kb4 5.Bc6 Kc5 6.Bb5 +- (2.04) Depth: 33/54 00:00:54 29675kN 1.Ke2 e3 +- (1.79) Depth: 34/61 00:01:35 73438kN (, 25.02.2005)
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