MESON Chess Problem Database

Problem Display
PID: 97401 (8/3p4/P2P2N1/1pPknR2/pB1p2P1/3p4/P2P2K1/1B6 w - - 0 1)

Armengol Burgues, Francisco

Problemas, 1977

8/3p4/P2P2N1/1pPknR2/pB1p2P1/3p4/P2P2K1/1B6

#2

11 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Rxe5#
    • 1...Kc6
      • 2.Se7#
    • 1...Ke6
      • 2.Sf4#
  • Tries
    • 1.Bxd3?
      • 1...Kc6
        • 2.Se7#
        • 2.Be4#
      • 1...Ke6
        • 2.Sf4#
      • 1...a3!
    • 1.Rxe5+?
      • 1...Kc6
        • 2.Se7#
      • 1...Kc4!
  • Keys
    • 1.a3!
      • 1...Kc4
        • 2.Ba2#
      • 1...Ke4
        • 2.Rxe5#
      • 1...Kc6
        • 2.Se7#
      • 1...Ke6
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(e);N_SPINS(f),P_SPINP(a),S_FLIGHT::R1(H),XS(f)
    • K(e);N_SPINS(f),S_FLIGHT::S(K)
  • Tries
    • Try
      • B(A);XP(a)
      • Vars
        • K(e);N_SPINS(f),S_FLIGHT::S(K)
      • Refutation
        • P(b);
    • Try
      • R(H);CHECK,XS(f)
      • Vars
        • K(e);S_FLIGHT::S(K)
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • P(B);
    • Vars
      • K(e);N_SPINS(f),S_FLIGHT::B(A)
      • K(e);N_SPINS(f),P_SPINP(a),S_FLIGHT::R1(H),XS(f)
      • K(e);N_SPINS(f),S_FLIGHT::S(K)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).