MESON Chess Problem Database

Problem Display
PID: 249125 (4r3/5Q1B/6Pk/4N3/6K1/8/8/8 w - - 0 1)

Zhezherun, Bogdan Valeriovich

Uralski Problemist, 2000

4r3/5Q1B/6Pk/4N3/6K1/8/8/8

#2

5 + 2

102 Probleemblad 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe5
      • 2.Qf8#
    • 1...Re6
      • 2.Qf8#
    • 1...Rf8
      • 2.Qxf8#
  • Tries
    • 1.Qf6?
      • threat
        • 2.Sf7#
      • 1...Rxe5
        • 2.Qf8#
      • 1...Rf8
        • 2.Qxf8#
      • 1...Re7!
    • 1.g7?
      • threat
        • 2.Qg6#
      • 1...Re6
        • 2.g8S#
      • 1...Kxh7!
  • Keys
    • 1.Kh4!
      • threat
        • 2.Sg4#
      • 1...Rxe5
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(b);N_GUARD,XS(B)::QAB(D)
    • R(b);N_GUARD::QAB(D)
    • R(b);N_GUARD::QAB(D),XR(b)
  • Tries
    • Try
      • Q(D);
      • Threat
        • S(B)
      • Vars
        • R(b);N_GUARD,XS(B)::QAB(D)
        • R(b);N_GUARD::QAB(D),XR(b)
      • Refutation
        • R(b);
    • Try
      • P(C);
      • Threat
        • QAR1(D)
      • Vars
        • R(b);N_GUARD::P=S
      • Refutation
        • K(a);P-FLIGHT,XB(E)
  • Actual
    • K(A);P-FLIGHT
    • Threat
      • S(B)
    • Vars
      • R(b);N_GUARD,XS(B)::QAB(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).