MESON Chess Problem Database

Problem Display
PID: 166706 (8/1Q4n1/2K1k3/2R5/8/R4r2/8/8 w - - 0 1)

Lincoln, Robert A

Sp. Comm., StrateGems, 2016

8/1Q4n1/2K1k3/2R5/8/R4r2/8/8

#2

4 + 3

145 StrateGems 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rf6
      • 2.Re3#
      • 2.Qd7#
  • Keys
    • 1.Ra7!
      • threat
        • 2.Qe7#
      • 1...Kf6
        • 2.Qf7#
      • 1...Rf7
        • 2.Qxf7#
      • 1...Sf5
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Actual
    • R(A);
    • Threat
      • QAR1(D)
    • Vars
      • K(b);P-FLIGHT::QAR1(D)
      • R(a);N_GUARD::QAB1(D),XR(a)
      • S(c);S_CUTR(a)::QAB1(D)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).