MESON Chess Problem Database

Problem Display
PID: 138843 (5bnk/2K1N2p/5P1n/8/3B4/7Q/8/7R w - - 0 1)

Bernard, Henry D'Oyly

Source?, 0000

5bnk/2K1N2p/5P1n/8/3B4/7Q/8/7R

#2

6 + 5

3530 Het Half Pin Thema (II) 1947

SOLUTION

  • SOUND
  • Sets
    • 1...Bg7
      • 2.fxg7#
    • 1...Sg4
      • 2.Sg6#
      • 2.Qxh7#
    • 1...Sf5
      • 2.Sg6#
      • 2.Qxh7#
    • 1...Sf7
      • 2.Sg6#
      • 2.Qxh7#
  • Keys
    • 1.Qc8!
      • 1...Bxe7
        • 2.fxe7#
      • 1...Sxf6
        • 2.Bxf6#
      • 1...Sxe7
        • 2.f7#
      • 1...Bg7
        • 2.fxg7#
      • 1...Sg4
        • 2.Sg6#
      • 1...Sf5
        • 2.Sg6#
      • 1...Sf7
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(c);OGATE::P(D),XB(c)
  • Actual
    • Q(B);
    • Vars
      • B(c);OGATE,P_SPINS(d),XS(F)::B(C)+P(D),XB(c)
      • S(d);OGATE,P_SPINB(c),P_SPINS(d),XP(D)::B(C),XS(d)
      • S(d);N_GUARD,P_SPINB(c),XS(F)::B(C)+P(D)
      • B(c);OGATE,P_SPINS(d)::P(D),XB(c)
      • S(a);P_SPINP(b)::S(F)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).