MESON Chess Problem Database

Problem Display
PID: 237404 (1rB5/5p2/4pKP1/8/2P1RNkP/R7/2Q1P1N1/8 w - - 0 1)

Labai, Zoltan

Schach, 1983

1rB5/5p2/4pKP1/8/2P1RNkP/R7/2Q1P1N1/8

#2

11 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...fxg6
      • 2.Bxe6#
  • Keys
    • 1.Rxe6!
      • threat
        • 2.Qf5#
      • 1...fxe6
        • 2.Bxe6#
      • 1...fxg6
        • 2.Qxg6#
      • 1...Rb3
        • 2.Re3#
      • 1...Rb5
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD,XP(J)::B(K),XP(b)
  • Actual
    • R(F);XP(b)
    • Threat
      • QAB1(A)
    • Vars
      • P(c);OGATE,P_SPINP(c),XR(F)::B(K),XP(c)
      • P(c);OGATE,XP(J)::QAR2(A),XP(c)
      • R(d);N_GUARD::B(K)+R(F)
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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).