Author: Sune Larsson
Date: 10:18:36 02/25/01
Go up one level in this thread
On February 25, 2001 at 11:48:54, Enrique Irazoqui wrote: >On February 25, 2001 at 11:39:18, Enrique Irazoqui wrote: > >>On February 25, 2001 at 11:17:38, Sune Larsson wrote: >> >>> >>> [D]8/5b2/1k2p1p1/2NpP1P1/1K1P4/8/8/8 w - - 0 1 >>> >>> >>> In this position white's knight is far superior to black's bishop. This is >>> very old knowledge and white is winning this one. People that play French >>> as black might have nightmares of positions like this. The black bishop >>> can only defend the two weak pawns on e6,g6 or wander around like a ghost >>> on the white squares. >>> >>> These are the evals from some programs - PIII 800 - 3 min thinking time. >>> The higher +score the better. Remember, white has a won position. >>> And it's about evaluating a superior horse vs a bad, bad bishop. >>> >>> [1.Na4+ Kc6 2.Ka5 Kb7 3.Nc5+ Kc7 (3.-Ka7 4.Kb5 Be8+ 5.Kb4 Bf7 6.Ka5 Bg8 7.Kb5) >>> 4.Kb5 Be8+ 5.Ka6 Bf7 6.Nb7 Be8 7.Ka7 Bf7 8.Nd6 Bg8 9.Ka6 Kc6 10.Ka5 Bh7 >>> 11.Nf7 Bg8 12.Nh8 Bh7 13.Ka6 Kc7 14.Kb5 Kb7 15.Kc5 Kc7 16.Nf7 Bg8 17.Nd6 Bh7 >>> 18.Ne8+ Kd8 19.Nf6 and wins] >>> >>> >>> 1) AnMon 5.07 +1.05 >>> 2) Deep Fritz +1.00 >>> 3) Fritz 6 +0.97 >>> 3) Nimzo 7.32 +0.97 >>> 5) Nimzo 8 +0.90 >>> 6) Phalanx 22 +0.86 >>> 7) SOS +0.80 >>> 8) Crafty 18.01 +0.54 >>> 9) CM8K +0.51 >>> 10) Hiarcs 7.32 +0.48 >>> 11) Fritz 5.32 +0.47 >>> 12) Century 3 +0.43 >>> 13) Gandalf 4.32g +0.36 >>> 14) Junior 6 +0.32 >>> 15) Junior 5 +0.27 >>> 16) Gromit 3.1 +0.26 >>> 17) Chess Tiger +0.18 >>> >>> Sune >> >>Deep Shredder 5 beta +0.75 > >After 12 minutes, ply 31, Deep Shredder climbs to +1.49. > >Enrique Now that is very interesting! Shredder is climbing and maybe sees something beyond the hills! What could that be that motivates a doubling of the evals!? Oh, I wonder if ever the time will come when a position like this is set up and Shredder 748B immediately shows +9.99, accompanied by Stefan's rugged voice declaring that "this is a totally won position for white due to the superiority of the white knight compared to the powerless black bishop. The Zugzwang is unavoidable." :) Sune > >>Junior 7 beta +0.53 >> >>Enrique
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