MESON Chess Problem Database

Problem Display
PID: 1982 (K7/8/8/4Q3/8/4R3/4rN2/1N2k3 w - - 0 1)

Loyd, Sam

Source?, 1867

K7/8/8/4Q3/8/4R3/4rN2/1N2k3

#2

5 + 2

SOLUTION

  • SOUND
  • Keys
    • 1.Sd2!
      • threat
        • 2.Rxe2#
      • 1...Kxd2
        • 2.Qc3#
      • 1...Kxf2
        • 2.Qg3#
      • 1...Rxe3
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(A);
    • Threat
      • R1(C),XR(b)
    • Vars
      • K(a);N_SPINR(b),OGATEB,S_FLIGHT,XS(A)::QAB1(D)
      • K(a);N_SPINR(b),OGATEB,S_FLIGHT,XS(B)::QAB1(D)
      • R(b);OGATE,XR(C)::QAR2(D),XR(b)
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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).