MESON Chess Problem Database

Problem Display
PID: 67504 (5b2/4nK1p/6Pk/6pp/7p/8/1B6/8 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1948

5b2/4nK1p/6Pk/6pp/7p/8/1B6/8

#2

3 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bg7
      • 2.Bxg7#
    • 1...g4
      • 2.Bc1#
  • Keys
    • 1.g7!
      • threat
        • 2.gxf8Q#
        • 2.gxf8B#
      • 1...Bxg7
        • 2.Bxg7#
      • 1...g4
        • 2.Bc1#
      • 1...Sd5
        • 2.gxf8Q#
        • 2.gxf8B#
        • 2.g8S#
      • 1...Sf5
        • 2.g8S#
      • 1...Sc6
        • 2.gxf8Q#
        • 2.gxf8B#
        • 2.g8S#
      • 1...Sg6
        • 2.g8S#
      • 1...Sc8
        • 2.gxf8Q#
        • 2.gxf8B#
        • 2.g8S#
      • 1...Sg8
        • 2.gxf8Q#
        • 2.gxf8B#
      • 1...h3
        • 2.gxf8Q#
        • 2.gxf8B#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(g);N_GUARD::B(A),XB(g)
    • P(b);OGATEB::B(A)
  • Actual
    • P(B);
    • Threat
      • PXB(g)=Q
    • Vars
      • B(g);OGATE,XP(B)::B(A),XB(g)
      • P(b);OGATEB::B(A)
      • S(e);N_GUARD::P=S
      • S(e);::PXB(g)=Q
      • P(a);::PXB(g)=Q
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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).