MESON Chess Problem Database

Problem Display
PID: 65808 (4RN2/2k2pN1/3p2q1/K2Bp3/8/8/3R4/8 w - - 0 1)

Barron, Philip

Chess Chats, 0000

4RN2/2k2pN1/3p2q1/K2Bp3/8/8/3R4/8

#2

6 + 5

785 Het Belgisch Schaakbord (L'Echiquier Belge) 1956

SOLUTION

  • SOUND
  • Sets
    • 1...Qc2
      • 2.Rxc2#
    • 1...Qh5
      • 2.Rc2#
    • 1...Qg5
      • 2.Rc2#
    • 1...Qe6
      • 2.Rc2#
    • 1...Qf6
      • 2.Rc2#
    • 1...Qh6
      • 2.Rc2#
    • 1...Qxg7
      • 2.Rc2#
    • 1...e4
      • 2.Rc2#
    • 1...f5
      • 2.Rc2#
    • 1...f6
      • 2.Sge6#
  • Tries
    • 1.Sge6+?
      • 1...Qxe6
        • 2.Rc2#
      • 1...fxe6!
  • Keys
    • 1.Ra8!
      • threat
        • 2.Se8#
      • 1...Qxg7
        • 2.Rc2#
      • 1...Qe6
        • 2.Rc2#
      • 1...f5
        • 2.Rc2#
      • 1...f6
        • 2.Sge6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • Q(c);N_GUARD::R(A),XQ(c)
    • Q(c);N_GUARD::R(A)
    • Q(c);N_GUARD,XS(D)::R(A)
    • P(a);S_CUTQ(c)::R(A)
    • P(e);S_CUTQ(c)::R(A)
    • P(e);N_GUARD,S_CUTQ(c)::S(D)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • Q(c);XS(D)::R(A)
      • Refutation
        • P(e);XS(D)
  • Actual
    • R(E);
    • Threat
      • S(D)
    • Vars
      • Q(c);N_GUARD,XS(D)::R(A)
      • Q(c);N_GUARD::R(A)
      • P(e);S_CUTQ(c)::R(A)
      • P(e);N_GUARD,S_CUTQ(c)::S(D)
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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).