Author: Eduard Nemeth
Date: 07:51:39 01/08/05
Go up one level in this thread
On January 08, 2005 at 10:24:21, Kurt Utzinger wrote: >Junior9 is a very fine program. One of its main weaknesses >is however the inability to evaluate correctly pawn endings >when the opposing program has a passed pawn or can create >a passed pawn. Below some examples. >Kurt That is my opinion too. > >Junior9 vs Gandalf 6.0 >White blundered with 25.Rd1?? Rxd1 with a won pawn ending for Black >[D]3r1k2/1p3ppp/8/1p6/8/5P2/PPP4P/2K4R w - - 0 25 > >Fritz8 vs Junior9 >Black chose 33...Qxb4?? just to get a lost pawn ending >[D]8/5pkp/4pp2/8/qQ6/P5PP/5P2/6K1 b - - 0 33 Neue Partie, 8/5pkp/4pp2/8/qQ6/P5PP/5P2/6K1 b - - 0 1 Analysis by Junior 8 (on my P3 600 without EGTB!!): 1...Dxb4 2.axb4 Kg6 3.b5 Kf5 = (-0.15) Tiefe: 3 00:00:00 1...Dxb4 2.axb4 Kf8 3.Kg2 Ke7 4.Kf3 +- (1.67) Tiefe: 6 00:00:00 5kN 1...Dd1+ 2.Kg2 Dd3 3.f4 Kg6 = (0.02) Tiefe: 6 00:00:00 11kN 1...Dc6 2.a4 Dd5 3.a5 Kg6 = (0.01) Tiefe: 6 00:00:00 14kN 1...Dc6 2.a4 e5 3.a5 Kg6 4.Db1+ f5 5.Dd3 ² (0.45) Tiefe: 9 00:00:00 46kN 1...Dd1+ 2.Kg2 f5 3.Dc3+ Kg6 4.f4 De2+ 5.Kg1 De4 = (-0.04) Tiefe: 9 00:00:01 119kN 1...Dd1+ 2.Kg2 Dd5+ 3.Kh2 Da2 4.Dc5 e5 5.h4 Db3 6.f4 = (0.01) Tiefe: 12 00:00:03 1385kN 1...Dd1+ 2.Kg2 ² (0.31) Tiefe: 15 00:00:19 9666kN 1...Dd1+ 2.Kg2 Dd5+ 3.Kh2 Da2 4.Kg1 Dc2 5.a4 ² (0.31) Tiefe: 17 00:01:21 41754kN 1...Dd1+ 2.Kh2 Dc2 3.Dd4 h5 4.a4 Dc7 5.h4 e5 6.De4 Dc3 7.Db7 Dc4 ² (0.32) Tiefe: 18 00:03:11 95538kN 1...Dd1+ 2.Kg2 Dd5+ 3.Kh2 Da2 4.Kg1 Dc2 5.a4 ² (0.32) Tiefe: 19 00:07:10 213953kN > >Junior9 vs Shredder8 >White played 51.Rb4? after 51... Kc6 52. Rb6+ Kd5 >exchanged rooks 53. Rxe6 Kxe6 54. Kxe4 and lost the pawn ending >[D]8/2k5/p3r2p/2P5/R3p1p1/4K1P1/7P/8 w - - 0 51 8/2k5/p3r2p/2P5/R3p1p1/4K1P1/7P/8 w - - 0 1 Analysis by Junior 8 (on my P3 600, without all EGTB!!): 1.c6 Kxc6 2.Txa6+ Kd5 µ (-1.40) Tiefe: 3 00:00:00 1.h4 gxh3 µ (-0.90) Tiefe: 3 00:00:00 1.Ta1 Te5 µ (-0.71) Tiefe: 3 00:00:00 1.Txe4 Txe4+ 2.Kxe4 Kc6 3.Kf4 Kxc5 4.Kxg4 = (-0.16) Tiefe: 3 00:00:00 1.Txe4 Txe4+ 2.Kxe4 Kc6 3.Kf4 Kxc5 4.Kxg4 Kd5 5.Kf3 = (0.04) Tiefe: 6 00:00:00 1kN 1.Txe4 Txe4+ 2.Kxe4 Kc6 3.Kd4 a5 4.Kc4 a4 5.Kb4 a3 6.Kxa3 Kxc5 ³ (-0.67) Tiefe: 9 00:00:00 23kN 1.Ta1 h5 2.Ta4 a5 3.Txa5 Kc6 ³ (-0.26) Tiefe: 9 00:00:00 29kN 1.Ta1 h5 2.Ta4 Kd7 3.Txe4 Txe4+ 4.Kxe4 a5 5.Kd5 a4 6.c6+ Kc7 7.Kc5 ³ (-0.31) Tiefe: 12 00:00:01 107kN 1.Ta1 h5 2.Ta4 Kb7 3.Tb4+ Kc6 4.Tb6+ Kd5 5.Txe6 Kxe6 6.Kxe4 a5 7.Kd4 Kd7 ³ (-0.31) Tiefe: 15 00:00:02 767kN 1.Ta1 Kb8 2.Ta5 Kb7 3.Ta4 Te8 4.Txe4 Txe4+ ³ (-0.31) Tiefe: 18 00:00:11 4926kN 1.Ta1 Kb8 2.Ta5 Kb7 3.Ta4 h5 4.Tb4+ ³ (-0.31) Tiefe: 20 00:00:30 13832kN 1.Ta1 Kb8 2.Ta5 Kb7 3.Ta4 Kc8 4.Ta1 Kc7 5.Ta4 Kb7 6.Tb4+ Kc6 7.Tb6+ ³ (-0.31) Tiefe: 22 00:02:06 57109kN 1.Ta1 Kb8 2.Ta5 Kb7 3.Ta4 Kc8 ³ (-0.31) Tiefe: 23 00:04:20 116903kN 1.Ta1 Kb8 2.Ta5 Kb7 3.Ta4 Kc8 ³ (-0.31) Tiefe: 24 00:08:28 227395kN 1.Ta1 Kb8 2.Ta5 Kb7 3.Ta4 h5 4.Ta3 ³ (-0.31) Tiefe: 25 00:16:22 438951kN (Nemeth, Privat 08.01.2005)
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