MESON Chess Problem Database

Problem Display
PID: 154017 (B2b1B2/2NPp3/2Nk1P2/8/2K5/8/8/8 w - - 0 1)

Schmidt, Leif Carl

Thema Danicum, 1977

B2b1B2/2NPp3/2Nk1P2/8/2K5/8/8/8

#2

7 + 3

SOLUTION

  • SOUND
  • Keys
    • 1.fxe7!
      • threat
        • 2.exd8Q#
      • 1...Kxc7
        • 2.exd8Q#
      • 1...Kxd7
        • 2.exd8Q#
      • 1...Bxc7
        • 2.e8Q#
      • 1...Bxe7
        • 2.d8Q#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • P(C);XP(b)
    • Threat
      • PXB(c)=Q
    • Vars
      • K(a);S_FLIGHT,XS(D)::PXB(c)=Q
      • K(a);P-FLIGHT,XP(E)::PXB(c)=Q
      • B(c);N_GUARD,SBLOCK,XS(D)::P=Q
      • B(c);OGATE,P_SPINB(c),XP(C)::P=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).