Author: Art Basham
Date: 07:25:34 12/11/02
Go up one level in this thread
Sorry, but I have never seen any of the early Fritz programs make any "wrong sacrifices"... This also includes the two engines in Extreme Chess... (no bugs are present there, either)...:-) Art ==============On December 11, 2002 at 10:18:28, Uri Blass wrote: >On December 11, 2002 at 09:59:18, Art Basham wrote: > >>Try the Fritz engines on this one! >> >>On my slow machine, Fritz 5.32 finds it in only 9 seconds! >> >>This is even faster than the new CM9000....:-) >> >>Art > >Fritz finds it fast because of a bug in it's evaluation that make it sacrifice >also wrong sacrifices. >This bug was corrected later so Deep Fritz6 is not so fast > >Blass,U - Fritz 5.32 >[D]r4rk1/1p1P1p2/p5pp/4Q3/2p1BP2/q1n2P2/P4P1P/R4R1K w - - 0 1 > >Analysis by Deep Fritz: > >1.d7-d8Q-- > ³ (-0.66) Depth: 1/4 00:00:00 >1.d7-d8Q-- Ra8xd8 > -+ (-1.72) Depth: 1/7 00:00:00 >1.Be4xb7! > µ (-1.09) Depth: 1/7 00:00:00 >1.Be4xb7! > = (0.06) Depth: 1/7 00:00:00 >1.Be4xb7-- > ³ (-0.31) Depth: 2/7 00:00:00 >1.Be4xb7-- > ³ (-0.31) Depth: 2/7 00:00:00 >1.Rf1-c1! > ³ (-0.28) Depth: 2/10 00:00:00 >1.Rf1-c1! Nc3xe4 2.f3xe4 Qa3-f3+ 3.Kh1-g1 > = (0.22) Depth: 2/10 00:00:00 >1.Rf1-c1 Nc3xe4 2.f3xe4 Ra8-d8 > = (0.00) Depth: 3/10 00:00:00 >1.Rf1-c1 Nc3xe4 2.f3xe4 Qa3-f3+ 3.Kh1-g1 Ra8-d8 > = (0.00) Depth: 4/15 00:00:00 2kN >1.Be4xb7! > = (-0.12) Depth: 4/15 00:00:00 3kN >1.Be4xb7! Ra8-d8 2.Rf1-c1 Nc3xa2 > = (-0.09) Depth: 4/15 00:00:00 3kN >1.Be4xb7 Ra8-d8 2.Rf1-c1 Nc3xa2 3.Rc1-d1 > = (-0.03) Depth: 5/16 00:00:00 11kN >1.Be4xb7 Ra8-d8 2.Rf1-c1 Nc3xa2 3.Rc1-d1 c4-c3 > = (-0.22) Depth: 6/17 00:00:00 22kN >1.f4-f5! > = (-0.19) Depth: 6/20 00:00:00 54kN >1.f4-f5! Nc3xe4 2.Qe5xe4 Kg8-h7 3.Rf1-g1 Qa3-d3 > = (-0.12) Depth: 6/22 00:00:00 79kN >1.f4-f5 Nc3xe4 2.Qe5xe4 Ra8-d8 3.f5xg6 Rd8xd7 4.Rf1-g1 Rf8-d8 > = (-0.19) Depth: 7/22 00:00:00 158kN >1.Be4xb7! > = (0.00) Depth: 7/22 00:00:00 180kN >1.Be4xb7! Ra8-d8 2.Qe5-c7 Qa3-a4 3.Bb7-c6 Nc3-b5 4.Qc7-e5 > = (-0.12) Depth: 7/25 00:00:00 213kN >1.Be4xb7 Ra8-d8 2.Qe5-c7 Qa3-a4 3.Bb7-c6 Nc3-b5 4.Bc6xb5 a6xb5 5.Rf1-d1 > = (0.00) Depth: 8/23 00:00:00 301kN >1.Be4xb7! > = (0.16) Depth: 9/25 00:00:01 1011kN >1.Be4xb7! Ra8-b8 2.Qe5-c7 Nc3-b5 3.Qc7-c6 Rf8-d8 4.Rf1-c1 Nb5-d4 > = (0.19) Depth: 9/25 00:00:02 1198kN >1.Be4xb7 Ra8-b8 2.Qe5-c7 Nc3-b5 3.Qc7-c6 Rf8-d8 4.Rf1-d1 Nb5-c3 5.Rd1-c1 Qa3-b2 >6.Bb7xa6 > ² (0.28) Depth: 10/27 00:00:03 1837kN >1.Be4xb7 Ra8-b8 2.Bb7-c6 Rb8-b6 3.Qe5-c7 Rb6-b8 4.Rf1-c1 Qa3-b2 5.Qc7-e5 Qb2xf2 >6.f4-f5 Nc3xa2 > ² (0.28) Depth: 11/32 00:00:08 5232kN >1.Be4xb7 Ra8-b8 2.Bb7-c6 Rb8-b6 3.Qe5-c7 Rb6-b8 4.Rf1-c1 Nc3-b5 5.Qc7-e5 > = (0.25) Depth: 12/30 00:00:15 9555kN >1.Rf1-g1! > ² (0.28) Depth: 12/33 00:00:33 20551kN >1.Rf1-g1! Nc3xe4 2.Qe5xe4 Kg8-h7 3.f4-f5 Rf8-g8 4.f5xg6+ f7xg6 5.f3-f4 Qa3-c5 >6.Ra1-c1 Ra8-d8 > ² (0.34) Depth: 12/33 00:00:39 24345kN >1.Rf1-g1 Nc3xe4 2.Qe5xe4 Kg8-h7 3.f4-f5 Rf8-g8 4.f5xg6+ f7xg6 5.f3-f4 Qa3-c5 >6.Ra1-c1 Ra8-d8 > ² (0.34) Depth: 13/36 00:01:20 50527kN >1.Be4xg6! > ² (0.38) Depth: 13/36 00:02:00 76666kN > >(Blass, Tel-aviv 11.12.2002) > >Uri
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