Author: Enrique Irazoqui
Date: 13:12:06 05/22/98
Go up one level in this thread
On May 22, 1998 at 13:33:59, Christophe Theron wrote: >On May 21, 1998 at 13:48:16, Enrique Irazoqui wrote: > >>One of my very favorite positions is the Badai problem I posted last >>Summer: >>8/1p6/p4p1p/2p1P2k/5P2/6pP/1P4P1/6K1 w - - 0 0 >> >>White to play 1.f5 >> >>How is Tiger doing with this one? >> >>Enrique > >Tiger running on K5-100MHz, 32Mb hash, finds 1.f5 in 293.85s (4:54) at >ply 17 (it would find it in 147s = 2:27 on K6-200). > >From ply 1 to ply 16, Tiger would play 1.e6. But the score of this move >slowly decreases at each iteration. > >At ply 17, in 57.56s, e6 is evaluated at -0.08. > >Then Tiger chooses f5, with a fail high. In 293.85s, f5 is evaluated at >+0.88 with the PV: >1. f5 fxe5 2. h4 b5 3. Kf1 e4 4. Ke2 c4 5. Ke3 b4 ... > >At ply 18, in 893.75s (14:54), a fail high is detected for f5. > >Then in 1260S (21:00), f5 is evaluated +5.62 with the same PV. > >I let it run till ply 19, and the same move with the same score and PV >would be played. > >How did the other programs on this position? On a P200MMX/64: Fritz 5: 42 seconds Genius 5 DOS: 2' 38'' Rebel 9: 17' 13'' Mchess 7.1: 23' 56'' With Hiarcs 6 and CST I gave up after 1 hour. Nimzo98 has the position cooked; after "uncooking" it it solves it in 5 minutes. Enrique > Christophe
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.