MESON Chess Problem Database

Problem Display
PID: 187217 (5K2/2p2N1b/BpP2p2/3k1q1R/1P2p3/2R1pPQ1/8/8 w - - 0 1)

Anonymous

12. Kwik-Toernooi, 1979

5K2/2p2N1b/BpP2p2/3k1q1R/1P2p3/2R1pPQ1/8/8

#2

9 + 8

102 Probleemblad 1979

SOLUTION

  • SOUND
  • Tries
    • 1.Rd3+?
      • 1...Kxc6
        • 2.Sd8#
      • 1...Ke6
        • 2.Sd8#
        • 2.Bc8#
      • 1...exd3!
    • 1.fxe4+?
      • 1...Kd4
        • 2.Qxe3#
      • 1...Ke6
        • 2.Sd8#
        • 2.Bc8#
      • 1...Kxe4!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qxe4#
      • 1...Kd4
        • 2.Rd3#
      • 1...Ke6
        • 2.Bc4#
      • 1...Qxh5
        • 2.Qd7#
      • 1...exf3
        • 2.Qc4#
      • 1...Qe5
        • 2.Qd7#
      • 1...Qg5
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • K(c);N_SPINQ(d),S_FLIGHT,XP(G)::S(H)
      • Refutation
        • P(b);XR(A)
    • Try
      • P(B);CHECK,XP(b)
      • Vars
        • K(c);N_SPINQ(d),P-FLIGHT::QAB1(C),XP(a)
      • Refutation
        • K(c);N_SPINQ(d),S_FLIGHT,XP(B)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C),XP(b)
    • Vars
      • K(c);N_SPINQ(d),P-FLIGHT,P_SPINP(b)::R1(A)
      • K(c);S_FLIGHT::B(F)
      • Q(d);N_SPINQ(d),OGATE,XR(E)::QAR2(C)
      • P(b);OGATE,XP(B)::QAB1(C)
      • Q(d);OGATE::QAR2(C)
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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).