Author: Kurt Utzinger
Date: 09:51:26 12/14/02
Go up one level in this thread
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
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