Computer Chess Club Archives

Search

Terms

Messages

Subject: Programs that keep searching for mate... A challenge:

Author: Dann Corbit

Date: 16:17:32 12/23/98

Here is a position that apparently has a lot of mates.  Can anyone find a faster
or better solution than the best of these (two tied at 32748) which is
guaranteed to win?
1R1Q4/5k2/p1p1pPb1/P4qp1/B3p3/4P3/5K1P/8 w - - id "C.A.P.47942"; ce 32740; pv
Ke1 Bh7 Qf8+ Kg6 Qg7+ Kh5 Bd1+ g4 Bxg4+ Qxg4 Qxh7+ Kg5 Rg8+ Kxf6 Qh6+ Ke5 Qh8+
Qg7 Qxg7+ Kd6 Rd8+ Kc5 Qd4+ Kb5 Rb8+ Kxa5 Qb4#
1R1Q4/5k2/p1p1pPb1/P4qp1/B3p3/4P3/5K1P/8 w - - id "C.A.P.47942"; ce 32744; pv
Ke1 Bh7 Rb7+ Kg6 Qe8+ Kh6 f7 Kh5 f8=Q+ Kg4 Bd1+ Kh3 Qh5+ Kg2 Qe2+ Kg1 Qf1+ Qxf1+
Qxf1+ Kxh2 Rxh7+ Kg3 Rh3#
1R1Q4/5k2/p1p1pPb1/P4qp1/B3p3/4P3/5K1P/8 w - - id "C.A.P.47942"; ce 32748; pv
Ke1 Bh7 Rb7+ Kg6 Qe8+ Kh6 f7 Kh5 f8=Q+ Kg4 Qxf5+ Kxf5 Rxh7 Ke5 Bb3 Kd6 Qe7+ Ke5
Qxe6#
1R1Q4/5k2/p1p1pPb1/P4qp1/B3p3/4P3/5K1P/8 w - - id "C.A.P.47942"; ce 32748; pv
Ke1 Bh7 Rb7+ Kg6 Qe8+ Kh6 f7 Kh5 f8=Q+ Kg4 Qxf5+ Bxf5 Bd1+ Kh3 Rb2 Bg4 Qh8+ Bh5
Qxh5#

Re: Programs that keep searching for mate... A challenge: Thom Perry 03:30:11 12/25/98
- Re: Programs that keep searching for mate... A challenge: Dann Corbit 12:43:36 12/25/98
  - Thanks for the CE explanation. Thom Perry 21:40:22 12/25/98
  - Re: Programs that keep searching for mate... A challenge: Dann Corbit 13:12:19 12/25/98
    - Re: Programs that keep searching for mate... A challenge: Andrew Dados 18:36:42 12/25/98
      - Re: Programs that keep searching for mate... A challenge: Dann Corbit 10:39:28 12/28/98

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.