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Subject: Another good underpromotion test position

Author: Matthew White

Date: 12:24:18 07/23/03

[D]8/5p1k/6pp/8/q2QB3/2K4P/1p3P2/8 b - - 0 45

From Levin (2331) - IM Donaldson, Western States Open 2003 (analysis)
The move actually played was 45... Qa1? 46. Bxg6+!! and draw by perpetual check
Can your engine find the winning 45... b1=N+!! 46. Bxb1 Qa1+ and black enters
the endgame a pawn up

Every engine that I have tested finds it eventually. However, some do take
longer than others :).

Matt

Re: Another good underpromotion test position Ross Boyd 02:40:16 07/24/03
Re: Another good underpromotion test position Steven J. Brann 17:08:14 07/23/03
Re: Another good underpromotion test position Christophe Drieu 14:26:53 07/23/03
Re: Another good underpromotion test position Jeff Hlywa 13:52:58 07/23/03
Re: Another good underpromotion test position Matthias Gemuh 13:50:19 07/23/03
Re: Another good underpromotion test position Tord Romstad 13:09:50 07/23/03
- Re: Another good underpromotion test position Matthew White 15:56:29 07/23/03
  - Re: Another good underpromotion test position Tord Romstad 16:22:24 07/23/03
    - Re: Another good underpromotion test position Matthias Gemuh 19:03:19 07/23/03
      - Re: Another good underpromotion test position Tord Romstad 07:35:46 07/24/03
        
        Re: Another good underpromotion test position Matthias Gemuh 11:52:34 07/24/03
        
        Checks in QSearch (Was: Re: Another good underpromotion test position) Tord Romstad 03:17:57 07/25/03
        
        Re: Checks in QSearch (Was: Re: Another good underpromotion test position) Uri Blass 05:25:16 07/25/03
        
        Re: Checks in QSearch (Was: Re: Another good underpromotion test positio Tord Romstad 06:09:58 07/25/03

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