MESON Chess Problem Database

Problem Display
PID: 144854 (8/7b/2pQ1K2/2pB1p2/3kN3/8/1P6/8 w - - 0 1)

White, B

American Association, 1878

8/7b/2pQ1K2/2pB1p2/3kN3/8/1P6/8

#2

5 + 5

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qd2#
      • 1...Kd3
        • 2.Qd2#
      • 1...Kxd5
        • 2.Sc3#
      • 1...cxd5
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(D);
    • Threat
      • QAR2(D)
    • Vars
      • K(a);P-FLIGHT::QAR1(D)
      • K(a);P-FLIGHT,XB(C)::S(B)
      • P(d);SBLOCK,XB(C)::QAR(D)+S(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).