MESON Chess Problem Database

Problem Display
PID: 140058 (7Q/2Bp4/2n1r3/1N1kP1R1/BPnpr3/3P4/4p3/4K3 w - - 0 1)

Kovacs, Florian Janos

The Problemist, 1938

7Q/2Bp4/2n1r3/1N1kP1R1/BPnpr3/3P4/4p3/4K3

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...R4xe5
      • 2.Qh1#
    • 1...R6xe5
      • 2.Qg8#
    • 1...S4xe5
      • 2.Bb3#
  • Tries
    • 1.Bb6?
      • threat
        • 2.Sc7#
      • 1...R4xe5
        • 2.Qh1#
      • 1...R6xe5
        • 2.Qg8#
      • 1...S4xe5
        • 2.Bb3#
      • 1...S6xe5!
  • Keys
    • 1.Bd6!
      • threat
        • 2.Sc7#
      • 1...R4xe5
        • 2.Qh1#
      • 1...R6xe5
        • 2.Qg8#
      • 1...S4xe5
        • 2.Bb3#
      • 1...S6xe5
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(d);OGATEB,P_SPINR(d),XP(F)::QAB(I)
    • R(g);OGATEB,P_SPINR(g),XP(F)::QAB(I)
    • S(b);OGATEB,P_SPINS(b),XP(F)::B(C)
  • Tries
    • Try
      • B(H);
      • Threat
        • S(E)
      • Vars
        • R(d);OGATEB,P_SPINR(d),XP(F)::QAB(I)
        • R(g);OGATEB,P_SPINR(g),XP(F)::QAB(I)
        • S(b);OGATEB,P_SPINS(b),XP(F)::B(C)
      • Refutation
        • S(f);P_SPINS(f),XP(F)
  • Actual
    • B(H);
    • Threat
      • S(E)
    • Vars
      • R(d);OGATEB,P_SPINR(d),XP(F)::QAB(I)
      • R(g);OGATEB,P_SPINR(g),XP(F)::QAB(I)
      • S(b);OGATEB,P_SPINS(b),XP(F)::B(C)
      • S(f);OGATEB,P_SPINS(f),XP(F)::QAB(I)
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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).