MESON Chess Problem Database

Problem Display
PID: 51017 (8/2pK4/6Pb/4kp2/1B3N1P/R7/3P2B1/8 w - - 0 1)

McKean, JS

Wharfedale and Airedale Observer, 1888

8/2pK4/6Pb/4kp2/1B3N1P/R7/3P2B1/8

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Bc3#
    • 1...Bxf4
      • 2.Bc3#
  • Keys
    • 1.Ra4!
      • threat
        • 2.Bc3#
      • 1...Kd4
        • 2.Bd6#
      • 1...Kxf4
        • 2.Bd6#
      • 1...Kf6
        • 2.Bc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(a);S_FLIGHT::B(D)
    • B(c);SBLOCK,XS(E)::B(D)
  • Actual
    • R(C);
    • Threat
      • B(D)
    • Vars
      • K(a);S_FLIGHT::R(C)+B(D)
      • K(a);S_FLIGHT,XS(E)::R(C)+B(D),DCHECK
      • K(a);S_FLIGHT::B(D)
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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).