Author: Sune Larsson
Date: 10:08:25 12/14/02
Go up one level in this thread
On December 14, 2002 at 12:51:26, Kurt Utzinger wrote: >On December 14, 2002 at 10:42:05, Sune Larsson wrote: > >>On December 14, 2002 at 06:51:19, Kurt Utzinger wrote: >> >>>A most interesting position that quite a lot of engines are unable to assess >>>correctly. For me however, the more important question is if this is a good >>>example because it demonstrates an exception of the rule in this kind of >>>position that Black should not exchange pieces. And for this reason it may be >>>not worth for a programmer to change anything. >>>Kurt >>> >>>Neue Partie >>>[D]8/1pp5/p1p3pp/5k2/5P1P/5KP1/PPP1R3/5r2 w - - 0 1 >>> >>>Analysis by Fritz 8: (P4 1.8/32 MB hash) >>> >>>1.Tf2 Tg1 2.a4 g5 3.fxg5 hxg5 4.Th2 g4+ 5.Kf2 Tc1 6.Ke3 Tg1 7.Kf2 >>> ² (0.31) Tiefe: 7/17 00:00:00 25kN >>> = (0.00) Tiefe: 16/36 00:02:35 90884kN, tb=2 >>>1.Kg2! >>> = (0.03) Tiefe: 16/40 00:03:21 119101kN, tb=2 >>> = (0.03) Tiefe: 16/40 00:03:21 119101kN, tb=2 >> >> >> Hi Kurt, >> >> What are your results with hash 64, 128 and ev. 256? >> Looks like the figures can differ quite a bit... >> I cannot reproduce your results with hash 32, so I guess >> I have to check my settings/parameters etc. >> >> /s >> >> >> >>> >>>(Utzinger, MyTown 14.12.2002) >>>******************************************************************************************* >>>Neue Partie >>>8/1pp5/p1p3pp/5k2/5P1P/5KP1/PPP1R3/5r2 w - - 0 1 >>> >>>Analysis by Chess Tiger 14.0: >>> >>>1.Tf2 Txf2+ 2.Kxf2 Ke4 3.b4 b6 4.a3 a5 5.bxa5 bxa5 6.Ke2 c5 7.Kf2 c4 8.c3 c5 >>>9.Ke2 a4 10.Kd2 >>> = (-0.12) Tiefe: 10 00:00:00 170kN >>> = (-0.08) Tiefe: 16 00:03:03 68668kN >>> >>>(Utzinger, MyTown 14.12.2002) >>>******************************************************************************************** >>>Neue Partie >>>8/1pp5/p1p3pp/5k2/5P1P/5KP1/PPP1R3/5r2 w - - 0 1 >>> >>>Analysis by Hiarcs 8: >>> >>>1.Kg2 Td1 2.Te5+ Kg4 >>> ² (0.26) Tiefe: 1 00:00:00 >>> = (0.16) Tiefe: 2/5 00:00:00 >>>1.Tf2 Txf2+ 2.Kxf2 Ke4 3.c3 c5 4.b3 b5 5.b4 h5 6.Ke2 Kd5 7.Kf3 >>> = (0.19) Tiefe: 2/9 00:00:00 >>> = (0.05) Tiefe: 11/26 00:00:04 935kN >>>1.Kg2 Td1 2.Kh3 Th1+ 3.Kg2 Td1 4.Tf2 >>> = (0.09) Tiefe: 11/26 00:00:08 1664kN >>> = (0.07) Tiefe: 15/34 00:03:41 46562kN >>> >>>(Utzinger, MyTown 14.12.2002) >>>******************************************************************************************** >>>Neue Partie >>>8/1pp5/p1p3pp/5k2/5P1P/5KP1/PPP1R3/5r2 w - - 0 1 >>> >>>Analysis by Junior 7: >>> >>>1.Kg2 Td1 2.Te7 >>> = (0.05) Tiefe: 3 00:00:00 >>> = (0.05) Tiefe: 3 00:00:00 >>>1.Ke3 Kg4 2.Tg2 Tf3+ 3.Kd4 Txg3 4.Txg3+ Kxg3 >>> = (0.18) Tiefe: 3 00:00:00 >>> ³ (-0.59) Tiefe: 6 00:00:00 5kN >>>1.Kg2 Td1 2.Kf3 >>> = (0.02) Tiefe: 6 00:00:00 6kN >>> = (0.00) Tiefe: 23 00:05:15 297987kN, tb=15 >>> >>>(Utzinger, MyTown 14.12.2002) >>>******************************************************************************************** >>>Neue Partie >>>8/1pp5/p1p3pp/5k2/5P1P/5KP1/PPP1R3/5r2 w - - 0 1 >>> >>>Analysis by Nimzo 7.32: >>> >>>1.Tf2 >>> ³ (-0.26) Tiefe: 1/11 00:00:00 >>>1.Ke3 Kg4 2.Tf2 >>> = (0.08) Tiefe: 1/11 00:00:00 >>> = (-0.02) Tiefe: 3/14 00:00:00 >>>1.Kg2 Ta1 2.a3 Tb1 3.b3 Kg4 4.Te7 Tc1 >>> = (0.07) Tiefe: 3/14 00:00:00 >>> = (0.08) Tiefe: 8/22 00:00:00 >>>1.Tf2 Txf2+ 2.Kxf2 Ke4 3.b3 h5 4.a3 a5 5.c4 Kf5 >>> = (0.09) Tiefe: 8/22 00:00:00 >>> = (-0.20) Tiefe: 9/23 00:00:00 >>>1.Kg2 Ta1 2.a3 Ta2 3.c3 Ta1 4.Te5+ Kg4 5.Te6 Kf5 6.Te2 >>> = (-0.19) Tiefe: 9/23 00:00:00 >>> = (0.04) Tiefe: 15/32 00:01:05 54994kN >>> >>>(Utzinger, MyTown 14.12.2002) >>>******************************************************************************************** > >Below the results of Fritz8 with differenct hashtable sizes: > >New game >8/1pp5/p1p3pp/5k2/5P1P/5KP1/PPP1R3/5r2 w - - 0 1 > >Analysis by Fritz 8: (P4 1.8/64 MB hash, Frit7-GUI) > >1.Rf2 Rg1 2.Rd2 Rf1+ 3.Kg2 Rb1 4.b3 g5 5.fxg5 hxg5 6.hxg5 Kxg5 7.a3 b6 8.Re2 Rd1 >9.Re5+ > ² (0.31) Depth: 7/17 00:00:00 25kN > = (0.00) Depth: 16/36 00:02:36 91944kN >1.Kg2! > = (0.03) Depth: 16/36 00:03:34 126470kN > = (0.03) Depth: 16/36 00:03:34 126470kN > >(Utzinger, MyTown 14.12.2002) >******************************************************************************************** >New game >8/1pp5/p1p3pp/5k2/5P1P/5KP1/PPP1R3/5r2 w - - 0 1 > >Analysis by Fritz 8: (P4 1.8/128 MB hash, Fritz7-GUI) > >1.Rf2 Rg1 2.Rd2 Rf1+ 3.Kg2 Rb1 4.b3 g5 5.fxg5 hxg5 6.hxg5 Kxg5 7.Re2 Ra1 8.c3 >Kg4 9.Kf2 > ² (0.31) Depth: 7/17 00:00:00 25kN > = (0.00) Depth: 16/39 00:02:49 98706kN >1.Kg2! > = (0.03) Depth: 16/39 00:03:14 114323kN > = (0.03) Depth: 16/39 00:03:14 114323kN > >(Utzinger, MyTown 14.12.2002) >******************************************************************************************** >New game >8/1pp5/p1p3pp/5k2/5P1P/5KP1/PPP1R3/5r2 w - - 0 1 > >Analysis by Fritz 8: (P4 1.8/256 MB hash, Fritz7-GUI) > >1.Rf2 Rg1 2.a4 c5 3.Rd2 Rf1+ 4.Kg2 Rb1 5.b3 Kg4 6.Re2 c4 7.bxc4 Ra1 8.Re6 Rxa4 > ² (0.31) Depth: 7/17 00:00:00 25kN > = (0.00) Depth: 16/38 00:02:30 85214kN >1.Kg2 Rd1 2.Rf2 Kf6 3.Kf3 c5 4.Re2 c4 > = (0.03) Depth: 16/42 00:03:32 120976kN > = (0.03) Depth: 17/39 00:06:17 215020kN > >(Utzinger, MyTown 14.12.2002) >******************************************************************************************** > >Kurt Ah, now I see. We were actually analysing different positions... I chose the one from F8-Aristarch - see my first post with diagram. In that game a3 was already played in the initial position. I read from your analysis that you must have chosen the position from F8-Shredder for your tests. The little move a3 might explain why I couldn't reproduce your results?! /s
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.