MESON Chess Problem Database

Problem Display
PID: 132590 (r3k2K/pp1p3R/N4pN1/2B2n1Q/B7/2R5/3r4/8 w q - 0 1)

Wicken, L

The Field, 1957

(First published on Thu Sep 19 1957)

r3k2K/pp1p3R/N4pN1/2B2n1Q/B7/2R5/3r4/8

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rd8
      • 2.Sc7#
      • 2.Sf4#
      • 2.Sh4#
      • 2.Se5#
      • 2.Sf8#
    • 1...0-0-0+
      • 2.Bf8#
  • Tries
    • 1.Se7+?
      • 1...Kf8
        • 2.Qf7#
      • 1...Kd8!
  • Keys
    • 1.Rf7!
      • threat
        • 2.Rf8#
      • 1...Kxf7+
        • 2.Sf8#
      • 1...0-0-0+
        • 2.Bf8#
      • 1...Kd8
        • 2.Rf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(h);0-0-0,CHECK,N_SPINP(f),OGATEB::R(A)+B(C)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(h);N_SPINP(f),P-FLIGHT::QAR1(D)
      • Refutation
        • K(h);N_SPINP(f),P-FLIGHT
  • Actual
    • R(G);
    • Threat
      • R1(G)
    • Vars
      • K(h);CHECK,N_SPINP(f),S_FLIGHT,XR(G)::QAB(D)+S(F)
      • K(h);0-0-0,CHECK,N_SPINP(f),OGATEB::R(A)+B(C)
      • K(h);N_SPINP(f),P-FLIGHT::R(G)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).