Author: Mark Young
Date: 10:58:00 08/18/00
Go up one level in this thread
On August 18, 2000 at 13:33:10, James Thompson wrote: >In an earlier post the following position was proposed: > >[D] kbb2rr1/1p6/p3p1q1/PN1pB3/1n6/R3Q3/5PB1/6K1 w - - > >Varoius responses indicated some pretty rapid solution times for various >programs: some as short as 8 seconds. When I set up this position for Fritz6a, >I left the computer running overnight and it still had not found the solution >mate in 8 beginning with 1.Qa7+. I used the normal settings for mate analysis >in the Fritz program. Any idea why Fritz could locate the mate? I must admit I >was surprised and disappointed when my "number 1" rated program could not find >the solution and others could. :( > >James You have something setup wrong, this position is a no brainer for just about any chess program. New position kbb2rr1/1p6/p3p1q1/PN1pB3/1n6/R3Q3/5PB1/6K1 w - - 0 1 Analysis by Fritz 6: 1.Bxb8 -+ (-6.53) depth: 1/3 00:00:00 1.Bxb8 Qxg2# -+ (-#1) depth: 1/4 00:00:00 1.Nc7+ -+ (-13.25) depth: 1/8 00:00:00 1.Nc7+ Bxc7 -+ (-10.69) depth: 1/8 00:00:00 1.Bg3 -+ (-10.41) depth: 1/8 00:00:00 1.Bg3 axb5 -+ (-9.62) depth: 1/9 00:00:00 1.Bg3 Qb1+ 2.Kh2 Rh8+ 3.Bh3 axb5 -+ (-9.75) depth: 2/9 00:00:00 1.Bg3 Qb1+ 2.Kh2 Rh8+ 3.Bh3 axb5 -+ (-9.75) depth: 3/12 00:00:00 1kN 1.Bg3-- -+ (-10.41) depth: 4/16 00:00:00 2kN 1.Bg3 Qb1+ 2.Kh2 Bxg3+ 3.fxg3 -+ (-10.56) depth: 4/19 00:00:00 5kN 1.Qa7+! = (0.00) depth: 4/19 00:00:00 8kN 1.Qa7+ Bxa7 2.Nc7+ Kb8 3.Ne8+ Ka8 4.Nc7+ = (0.00) depth: 5/11 00:00:00 9kN 1.Qa7+ Bxa7 2.Nc7+ Kb8 3.Ne8+ Ka8 4.Nc7+ = (0.00) depth: 6/20 00:00:00 10kN 1.Qa7+ Bxa7 2.Nc7+ Kb8 3.Ne8+ Ka8 4.Nc7+ = (0.00) depth: 7/21 00:00:00 17kN 1.Qa7+ Bxa7 2.Nc7+ Kb8 3.Ne8+ Ka8 4.Nc7+ = (0.00) depth: 8/28 00:00:00 25kN 1.Qa7+! +- (#8) depth: 9/26 00:00:00 33kN (Young, MyTown 18.08.2000)
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.