Problem Display
PID: 142318 (K7/3N4/1P6/3k1N1R/3B1pQp/3p3P/P2P4/8 w - - 0 1)

Gittins, Frederick Richard

Brighton Society, 1904

(First published on Wed May 25 1904)

K7/3N4/1P6/3k1N1R/3B1pQp/3p3P/P2P4/8

#2

10 + 4


14868 Pirnie Collection 2011

SOLUTION


  • SOUND
  • Sets
    • 1...Ke4
      • 2.Sf6#
  • Tries
    • 1.Rh6?
      • 1...Ke4
        • 2.Sf6#
      • 1...f3
        • 2.Se3#
      • 1...Kc4!
  • Keys
    • 1.Bc5!
      • 1...Kc4
        • 2.Sd6#
      • 1...Ke4
        • 2.Sd6#
      • 1...Kc6
        • 2.Sd4#
      • 1...Ke6
        • 2.Sh6#
      • 1...f3
        • 2.Se7#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(d);P_SPINP(b),S_FLIGHT::S(I)
  • Tries
    • Try
      • R(G);
      • Vars
        • K(d);P_SPINP(b),S_FLIGHT::S(I)
        • P(b);N_GUARD::S(F)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • B(D);
    • Vars
      • K(d);P_SPINP(b),S_FLIGHT::S(F)
      • K(d);S_FLIGHT::S(F)
      • K(d);S_FLIGHT::QAB(E)+S(F)
      • P(b);::R(G)+S(F),DCHECK


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).