Author: Uri Blass
Date: 00:06:01 08/26/02
Go up one level in this thread
On August 26, 2002 at 01:11:24, Aaron Gordon wrote: >On August 25, 2002 at 22:27:08, Mark Young wrote: > >>Fritz 7 must be much faster then Deep Fritz 7 in this position. Both programs >>find it at depth 21. >> >>P4 2.53 Ghz. >> >>1.Rg4+! >> ² (0.50) Depth: 21/39 00:11:36 763990kN, tb=2703 (1103 Kns) >> >> >>Analysis by Fritz 7: >> >>1.Bd5 Rh1 2.Rxb4 Re1+ 3.Kd6 Ra1 4.Ra4 Kf6 5.Ra8 h5 6.Rf8+ Kg5 7.Ra8 >> ± (0.94) Depth: 11/21 00:00:00 407kN >>1.Bd5 Rh1 2.Rxb4 Re1+ 3.Kd6 Ra1 4.Ra4 Kf6 5.Kc5 Rc1+ 6.Bc4 f4 7.Ra6+ Kg7 8.Kd4 >> ± (0.94) Depth: 12/24 00:00:00 641kN >>1.Bd5 Rh1 2.Rxb4 Rd1 3.Ke6 h5 4.Ra4 Ra1 5.Ke5 Kh6 6.Ra8 Kg5 7.f4+ Kg4 >> ± (1.03) Depth: 13/26 00:00:01 1440kN >>1.Bd5 Rh1 2.Rxb4 Rd1 3.Ke6 Re1+ 4.Kd6 Ra1 5.Ra4 Kf6 6.Kc5 h6 7.Ra6+ Kg7 8.f4 >> ± (1.09) Depth: 14/27 00:00:03 3234kN >>1.Bd5 Rh1 2.Rxb4 Rd1 3.Ke6 Re1+ 4.Kf7 Rg1 >> ± (1.09) Depth: 15/29 00:00:05 5938kN >>1.Bd5 Rh3 2.Rxb4 Rxg3 3.Ra4 h5 4.Rxa3 h4 5.Ra2 h3 6.Ke6 Kf4 7.Ra4+ Ke3 8.Rh4 >> ± (0.88) Depth: 16/31 00:00:13 14782kN >>1.Bd5 Rh3 2.Rxb4 Rxg3 3.Ra4 h5 4.Rxa3 h4 5.Ra2 h3 6.Ke6 Kf4 7.Ra4+ Ke3 8.Ke5 >> ² (0.63) Depth: 17/32 00:00:28 31530kN, tb=1 >>1.Bd5! >> ± (0.91) Depth: 18/32 00:01:02 60295kN, tb=25 >>1.Bd5! Rh3 2.Rxb4 Rxg3 3.Ra4 h5 4.Rxa3 Rg1 5.Ra8 Re1+ 6.Kf7 h4 7.Rh8 Re2 8.Bb7 >> ± (0.94) Depth: 18/32 00:01:07 73154kN, tb=45 >>1.Bd5 Rh3 2.Rxb4 Rxg3 3.Ra4 h5 4.Rxa3 Rg1 5.Ra8 Kf4 6.Kf6 h4 7.Ra4+ Kg3 8.Kxg6 >> ² (0.69) Depth: 19/34 00:01:53 123946kN, tb=127 >>1.Bd5 Rh3 2.Rxb4 Rxg3 3.Ra4 h5 4.Rxa3 h4 5.Ra8 Kf4 6.Kf6 h3 7.Ra4+ Ke3 8.Ke5 >> ± (0.72) Depth: 20/36 00:04:02 264986kN, tb=560 >>1.Bd5 Rh3 2.Rxb4 Rxg3 3.Ra4 h5 4.Rxa3 Rg1 5.Ra8 Kf4 6.Kf6 h4 7.Ra4+ Kg3 8.Kxg6 >> ² (0.47) Depth: 21/39 00:08:52 583219kN, tb=1775 >>1.Rg4+! >> ² (0.50) Depth: 21/39 00:11:36 763990kN, tb=2703 >>1.Rg4+! >> ² (0.66) Depth: 21/39 00:11:36 764000kN, tb=2703 >>1.Rg4+! >> ± (0.97) Depth: 21/39 00:11:36 764023kN, tb=2703 >>1.Rg4+! >> ± (1.25) Depth: 22/34 00:12:05 798226kN, tb=2929 >>1.Rg4+-- >> ± (0.97) Depth: 23/42 00:13:21 887004kN, tb=4002 >>1.Rg4+-- >> ± (0.97) Depth: 23/43 00:13:24 890562kN, tb=4038 >> >>(Young, MyTown 25.08.2002) > >Which Fritz7 version are you using & how much hash? > >XP-1.77ghz >Analysis by Fritz 7 (7.0.0.8) 256mb hash: > >1.Bd5 Rh1 2.Rxb4 Re1+ 3.Kd6 Ra1 4.Ra4 Kf6 5.Ra8 h5 6.Rf8+ Kg5 7.Ra8 > ± (0.94) Depth: 11/21 00:00:00 407kN >1.Bd5 Rh1 2.Rxb4 Re1+ 3.Kd6 Ra1 4.Ra4 Kf6 5.Kc5 Rc1+ 6.Bc4 f4 7.Ra6+ Kg7 8.Kd4 > ± (0.94) Depth: 12/24 00:00:00 641kN >1.Bd5 Rh1 2.Rxb4 Rd1 3.Ke6 h5 4.Ra4 Ra1 5.Ke5 Kh6 6.Ra8 Kg5 7.f4+ Kg4 > ± (1.03) Depth: 13/26 00:00:01 1437kN >1.Bd5 Rh1 2.Rxb4 Rd1 3.Ke6 Re1+ 4.Kd6 Ra1 5.Ra4 Kf6 6.Kc5 h6 7.Ra6+ Kg7 8.f4 > ± (1.09) Depth: 14/27 00:00:03 3279kN >1.Bd5 Rh3 2.Rxb4 Rxg3 3.Ra4 h5 4.Rxa3 h4 5.Ra2 Kf4 6.Kf6 h3 7.Rh2 g5 8.Re2 > ± (1.00) Depth: 15/29 00:00:06 6698kN >1.Bd5 Rh3 2.Rxb4 Rxg3 3.Ra4 h5 4.Rxa3 h4 5.Ra2 Kf4 6.Kf6 h3 7.Ra4+ Ke3 8.Rh4 > ± (0.97) Depth: 16/30 00:00:11 13199kN >1.Bd5-- > ² (0.69) Depth: 17/31 00:00:22 24941kN >1.Bd5-- > ² (0.69) Depth: 17/32 00:00:28 31526kN >1.Bd5 Rh3 2.Rxb4 Rxg3 3.Ra4 h5 4.Rxa3 Rg1 5.Ra8 Re1+ 6.Kf7 h4 7.Rh8 Re2 8.Bb7 > ± (0.94) Depth: 18/33 00:01:07 74492kN, tb=8 >1.Bd5 Rh3 2.Rxb4 Rxg3 3.Ra4 h5 4.Rxa3 Rg1 5.Ra8 Kf4 6.Kf6 h4 7.Ra4+ Kg3 8.Kxg6 > ± (0.75) Depth: 19/35 00:01:59 132435kN, tb=16 >1.Bd5 Rh3 2.Rxb4 Rxg3 3.Ra4 h5 4.Rxa3 Rg1 5.Ra8 Kf4 6.Kf6 h4 7.Ra4+ Kg3 8.Kxg6 > ± (0.84) Depth: 20/40 00:04:24 291873kN, tb=77 >1.Rg4+! > ± (0.88) Depth: 20/40 00:05:31 366054kN, tb=200 Not good enough Movei00_761 PIII850(128 Mbytes hash) finds it faster 14 183 15330 31276732 c4d5 b4b3 d5b3 h6h2 f4a4 h2d2 f3f4 g5g4 b3g8 d2d3 g8h7 g4h5 h7g8 d3g3 g8d5 14 184 28886 65517377 f4g4 14 204 30687 69978047 f4g4 f5g4 f3f4 g5h5 e7f8 g6g5 c4f7 h6g6 f4f5 h5h6 f5g6 h7g6 f8g8 b4b3 f7b3 h6h5 b3e6 h5h6 e6g4 14 204 32088 72796801 f4g4 f5g4 f3f4 g5h5 e7f8 g6g5 c4f7 h6g6 f4f5 h5h6 f5g6 h7g6 f8g8 b4b3 f7b3 h6h5 b3e6 h5h6 e6g4 15 297 78967 199666579 f4g4 f5g4 f3f4 g5h5 e7f8 g6g5 c4f7 h6g6 f4f5 h5h6 f5g6 h7g6 f8g8 b4b3 f7b3 a3a2 b3a2 h6h5 a2d5 h5h6 g8f7 >1.Rg4+-- > ² (0.59) Depth: 21/37 00:05:43 381486kN, tb=286 >1.Rg4+-- > ² (0.59) Depth: 21/39 00:05:45 382940kN, tb=289 You should give it more time Rg4+ failed low so it may change it's mind The score for Bd5 was 0.84 at depth 20. Uri
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.