Author: allan johnson
Date: 19:10:21 11/06/05
Go up one level in this thread
On November 06, 2005 at 21:18:21, Djordje Vidanovic wrote: >If you take a look at this position you can see that Fritz 9 needs a decent >chunk of time to find the simple Rg3! It spends a lot of time on the simple pawn >to g4 and only after about 80 seconds (FX-53) switches to Rg3, eventually >announcing a mate in 23: > >[D] r6r/p2Q2pp/6k1/2P1pp2/1Pb5/R7/6PP/6K1 w - - 0 29 > > >It is interesting to note that Fritz 9 learns successfully, even though its >positional learning is all done in the RAM and gets cleared the moment you exit >Fritz. In a repeated try while I was still in the program, Fritz targeted Rg3! >right away never changing the winning line. > > >Djordje . Shredder 8 - ,A, [Analysis by Junior package download at Chessbase. Not Junior9!]Al r6r/p2Q2pp/6k1/2P1pp2/1Pb5/R7/6PP/6K1 w - - 0 1 Analysis by Shredder 8: 1.Rxa7 Rxa7 2.Qxa7 +- (1.99) Depth: 1/3 00:00:00 1.Rxa7 Rxa7 2.Qxa7 +- (1.99) Depth: 1/3 00:00:00 1.Kf2 +- (2.55) Depth: 1/3 00:00:00 1.Kf2 +- (2.55) Depth: 1/3 00:00:00 1.Rg3+ Kh5 +- (2.56) Depth: 1/3 00:00:00 1.Rg3+ Kh6 +- (3.18) Depth: 1/4 00:00:00 1.Rg3+ Kf6 2.Rxg7 +- (3.18) Depth: 1/4 00:00:00 1.Qd6+ Be6 2.Qxe6+ Kg5 +- (4.07) Depth: 1/4 00:00:00 1.Qd6+ Kg5 2.Qxe5 +- (4.07) Depth: 1/4 00:00:00 1.Qd6+ Kg5 2.Qxe5 +- (4.07) Depth: 2/6 00:00:00 1.Qd6+ Kh5 2.Rh3+ Kg5 3.Qxe5 +- (4.02) Depth: 3/14 00:00:00 1.Rg3+ Kf6 2.Qxg7+ Ke6 3.Qh6+ Ke7 +- (4.20) Depth: 3/14 00:00:00 1.Rg3+ Kf6 2.Qxg7+ Ke6 3.Qh6+ Kd5 4.Qd6+ Ke4 5.Qc6+ Bd5 +- (4.29) Depth: 3/14 00:00:00 1.Rg3+ Kf6 2.Qxg7+ Ke6 3.Qh6+ Kd5 4.Qd6+ Ke4 5.Qc6+ Bd5 +- (4.29) Depth: 4/14 00:00:00 1.Rg3+ Kf6 2.Qxg7+ Ke6 3.Qh6+ Kd5 4.Qd6+ Ke4 5.Kf2 +- (4.53) Depth: 5/20 00:00:00 1.Rg3+ Kf6 2.Qxg7+ Ke6 3.Qh6+ Kd5 4.Qd6+ Ke4 5.Kf2 Rad8 +- (4.47) Depth: 6/18 00:00:00 1.g4 Kf6 2.Qxf5+ Ke7 +- (4.48) Depth: 6/24 00:00:00 1.g4 Rhf8 2.gxf5+ Kf6 3.Qd6+ Kf7 4.Qxe5 Kg8 +- (4.56) Depth: 6/24 00:00:00 1.Rc3 Kg5 2.Rxc4 Rhc8 +- (4.57) Depth: 6/24 00:00:00 1.Rc3 Bd5 2.Qxd5 Rhe8 +- (4.92) Depth: 6/24 00:00:00 1.Rc3 Rhd8 2.Qc6+ Kf7 3.Qb7+ Kf6 4.Rxc4 e4 +- (5.37) Depth: 6/24 00:00:00 1.Rc3 Rad8 2.Qc6+ Kg5 3.h4+ Kxh4 4.Rxc4+ e4 5.Qe6 g6 +- (5.49) Depth: 7/20 00:00:00 130kN 1.Rc3 Rad8 2.Qc6+ Kg5 3.h4+ Kxh4 4.Rxc4+ Kg5 5.Qb7 a5 +- (5.74) Depth: 8/20 00:00:00 223kN 1.Rc3 Rhd8 2.Qc6+ Kf7 3.Qb7+ Kf6 4.Rxc4 a5 5.Qb6+ Kf7 6.bxa5 +- (6.05) Depth: 8/23 00:00:00 258kN 1.Rc3 Rhd8 2.Qc6+ Kf7 3.Rxc4 Rab8 4.Qc7+ Kf6 5.Kf2 Re8 6.Qxe5+ Kxe5 +- (5.99) Depth: 9/26 00:00:01 508kN 1.Rc3 Rhd8 2.Qc6+ Kf7 3.Qb7+ Kf6 4.Rxc4 Kg6 5.Kf2 Rac8 +- (6.24) Depth: 10/30 00:00:03 1006kN 1.Rc3 Rhd8 2.Qc6+ Kf7 3.Qb7+ Kf6 4.Rxc4 Re8 5.Qa6+ Re6 6.Qxa7 Rxa7 +- (6.24) Depth: 10/30 00:00:03 1028kN 1.Rc3 Rhd8 2.Qc6+ Kf7 3.Qb7+ Kf6 4.Rxc4 Re8 5.Qc6+ Kg5 6.h4+ Kh5 7.g4+ fxg4 8.Qe4 Rec8 +- (6.24) Depth: 11/30 00:00:05 1860kN 1.Rc3 Rhd8 2.Qc6+ Kh5 3.Rxc4 Rd1+ 4.Kf2 Rad8 5.Qf3+ Kg6 6.Rc2 R8d2+ 7.Rxd2 Rxd2+ 8.Ke1 Rd4 9.Qa8 Rxb4 10.Qxa7 +- (6.32) Depth: 12/34 00:00:12 4018kN 1.Rc3 Rhd8 2.Qc6+ Kf7 3.Qb7+ Kg8 4.Rxc4 a5 5.Qc6 axb4 6.Qe6+ Kh8 7.Rxb4 e4 8.Qxe4 +- (6.28) Depth: 13/37 00:00:22 7916kN 1.Rg3+ Kf6 2.Qxg7+ Ke6 3.Qh6+ Kd5 4.Qd2+ Kc6 5.Qd6+ Kb5 6.c6 Bd5 +- (6.29) Depth: 13/42 00:00:37 13266kN 1.Rg3+ Kf6 2.Qxg7+ Ke6 3.Qh6+ Kd5 4.Qd2+ Kc6 5.Qd6+ Kb5 6.c6 Be6 7.Qxe5+ Kxc6 8.Qxe6+ Kb5 +- (6.64) Depth: 13/42 00:00:37 13314kN 1.Rg3+ Kf6 2.Qxg7+ Ke6 3.Qh6+ Kd5 4.Qd2+ Kc6 5.Qd6+ Kb5 6.c6 Ka4 7.Qc5 a5 8.bxa5 Bb3 9.Qxe5 +- (7.09) Depth: 13/42 00:00:40 14514kN 1.Rg3+ Kf6 2.Qxg7+ Ke6 3.Qh6+ Kd5 4.Qd2+ Kc6 5.Qd6+ Kb5 6.c6 Ka4 7.Qc5 a5 8.bxa5 Rxa5 9.Qxc4# +- (7.34) Depth: 14/38 00:00:46 16804kN 1.Rg3+ Kf6 2.Qxg7+ Ke6 3.Qh6+ Kd5 4.Qd2+ Kc6 5.Qd6+ Kb5 6.c6 Ka4 7.Qc5 a5 8.bxa5 Be6 9.Ra3# +- (7.84) Depth: 14/40 00:00:47 17132kN 1.Rg3+ Kf6 2.Qxg7+ Ke6 3.Qh6+ Kd5 4.Qd2+ Kc6 5.Qd6+ Kb5 6.c6 Ka4 7.Qc5 a5 8.bxa5 Bd3 9.Kf2 +- (7.84) Depth: 14/42 00:00:53 19374kN 1.Rg3+ Kf6 2.Qxg7+ Ke6 3.Qh6+ Kd5 4.Qd2+ Kc6 5.Qd6+ Kb5 6.c6 Ka4 7.Qc5 a5 8.bxa5 Bb3 9.Kf2 Rxa5 10.Rxb3 +- (7.59) Depth: 15/45 00:01:28 32784kN 1.Rg3+ Kf6 2.Qxg7+ Ke6 3.Qh6+ Kd5 4.Qd2+ Kc6 5.Qd6+ Kb5 6.c6 Ka4 7.Qc5 a5 8.bxa5 Rhe8 +- (7.59) Depth: 15/45 00:01:30 33386kN
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