Problem Display
PID: 270916 (7K/8/1Q1BR3/6kn/4P3/5P2/6P1/8 w - - 0 1)

Westbury, Eric Ernest

Birmingham Daily Post, 1901

7K/8/1Q1BR3/6kn/4P3/5P2/6P1/8

#2

7 + 2


17417 Westbury Scrapbooks 2023

SOLUTION


  • SOUND
  • Tries
    • 1.Rg6+?
      • 1...Kh4
        • 2.Rg4#
      • 1...Kxg6!
  • Keys
    • 1.Rh6!
      • 1...Kh4
        • 2.Qd8#
      • 1...Kxh6
        • 2.Bf4#
      • 1...Sg3
        • 2.Qe3#
      • 1...Sf4
        • 2.Be7#
      • 1...Sf6
        • 2.Qe3#
      • 1...Sg7
        • 2.Qe3#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::R1(F)
      • Refutation
        • K(a);P-FLIGHT,XR(F)
  • Actual
    • R(F);
    • Vars
      • K(a);N_GUARD,P_SPINS(b),S_FLIGHT::QAB(D)
      • K(a);N_GUARD,S_FLIGHT,XR(F)::QAR(D)+B(E),DCHECK
      • S(b);N_GUARD::QAB(D)
      • S(b);N_GUARD,SBLOCK::B(E)


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).