MESON Chess Problem Database

Problem Display
PID: 176019 (1k2N3/8/1K3N2/4r2R/8/6B1/8/8 w - - 0 1)

Hoek, Willem

Probleemblad, 1978

1k2N3/8/1K3N2/4r2R/8/6B1/8/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Sd7+?
      • 1...Ka8
        • 2.Sc7#
      • 1...Kc8!
    • 1.Rxe5?
      • 1...Ka8
        • 2.Ra5#
      • 1...Kc8!
  • Keys
    • 1.Rh8!
      • threat
        • 2.Sg7#
      • 1...Ka8
        • 2.Sc7#
      • 1...Kc8
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(b);N_SPINR(a),P-FLIGHT::S(E)
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT
    • Try
      • R(B);XR(a)
      • Vars
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • R(B);
    • Threat
      • R(B)+S(E)
    • Vars
      • K(b);N_SPINR(a),P-FLIGHT::R(B)+S(E),DCHECK
HTML5 logo

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).