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Subject: Another Candidate for the Most Difficult Tactical Combo in the World

Author: ALI MIRAFZALI

Date: 13:05:22 02/08/02

Some of my previous posting on this Topic where solved By some programs;
(Like Sjeng)(which I do not think is a good program) this time I am
sure That no program in The WORLD will even Come close to Solving
this.Theposition is from a game between an IM and a GM (with the GM winning).
In my opinion the Position is More difficult than all of THE NOLOT famous
test Positions.It should therefore serve an a benchmark.Needless to say finding
such positions is no easy matter ;because it requires many hours (days;Months)
of research.
[D]r1bq1r2/p2np1k1/3p2pR/3pP3/2pP4/5N2/PP2Q1P1/2KR1B2 w
Important Note:the solution is not sensative to Extentions!!
The solution as played in the actual game is:(in great style):19.Rxg6+!! Kxg6
20.Nh4+ Kh6 21.Qe3+ Kh7 22.Bd3+!! cxb3 23.Qxd3+ Kh8 24.Rh1 Nf6 25.exf6 Qc7+
26.Kb1 Rxf6 27.Nf3+ Kg8 28.Qh7+ Kf8 29.Qh8+ Kf7 30.Ng5+ Kg6.31.Qh5+ (1-0)
What does your program say? For Comparison here is the line given by
CM 8000 after 11 hours of furious Computation on a 500 MHZ Computer
19.Qe3 Rxf3 20.gxf3 Nf8 21.Bh3 Qb6 22.exd6 Rb8 23.Rd2 Qxd6 (No Cigar).

• Re: Another Candidate for the Most Difficult Tactical Combo in the World Eelco de Groot 12:28:10 02/10/02
• The Greek Gift Sac from Kasparov - Deep Blue Game 6 1996 is much harder Joshua Lee 08:50:53 02/09/02
  • Re: The Greek Gift Sac from Kasparov - Deep Blue Game 6 1996 is much harder Uri Blass 11:24:37 02/09/02
• Re: Another Candidate for the Most Difficult Tactical Combo in the World Pierre Bourget 07:31:16 02/09/02
• Re: Another Candidate for the Most Difficult Tactical Combo in the World Ed Schröder 00:40:10 02/09/02
• Re: Another Candidate for the Most Difficult Tactical Combo in the World Miguel A. Ballicora 14:45:04 02/08/02
• Re: Another Candidate for the Most Difficult Tactical Combo in the World Gian-Carlo Pascutto 14:44:38 02/08/02
  • Re: Another Candidate for the Most Difficult Tactical Combo in the World Uri Blass 15:10:27 02/08/02
    • Re: Another Candidate for the Most Difficult Tactical Combo in the World Uri Blass 15:26:48 02/08/02
  • Re: Another Candidate for the Most Difficult Tactical Combo in the World Dan Andersson 14:58:32 02/08/02
    • Re: Another Candidate for the Most Difficult Tactical Combo in the World Dann Corbit 17:44:08 02/08/02
      • Re: Another Candidate for the Most Difficult Tactical Combo in the World allan johnson 17:59:45 02/08/02
      • Re: Another Candidate for the Most Difficult Tactical Combo in the World allan johnson 17:57:20 02/08/02
• Re: Agree it's too hard; how long to find the simpler move 4? Roy Eassa 13:38:46 02/08/02
• Re: Another Candidate for the Most Difficult Tactical Combo in the World Roy Eassa 13:20:02 02/08/02
  • Re: Another Candidate for the Most Difficult Tactical Combo in the World Roy Eassa 13:24:16 02/08/02
    • Re: Followup: more from Fritz 7b after 4.Bd3+ Roy Eassa 13:26:21 02/08/02
      • Re: Followup: more from Fritz 7b after 4.Bd3+ ALI MIRAFZALI 13:40:02 02/08/02
        • Re: Followup: more from Fritz 7b after 4.Bd3+ Roy Eassa 13:59:36 02/08/02

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