Problem Display
PID: 145656 (8/1QK5/R4P2/1P2k3/3p2P1/3p4/3B4/8 w - - 0 1)

Bridgwater, Ralph Herbert

Birmingham Post, 1921

(First published on Tue Jul 19 1921)

8/1QK5/R4P2/1P2k3/3p2P1/3p4/3B4/8

#2

7 + 3


15372 Bridgwater Scrapbook 2012
5454 Near Snap 2013

SOLUTION


  • SOUND
  • Tries
    • 1.Rc6?
      • 1...Ke4
        • 2.Rc5#
        • 2.Re6#
      • 1...Kd5!
    • 1.Qc8?
      • threat
        • 2.Qf5#
        • 2.Qe6#
      • 1...Ke4
        • 2.Qf5#
      • 1...Kd5!
  • Keys
    • 1.Kc6!
      • threat
        • 2.Qe7#
      • 1...Ke4
        • 2.Kd6#
      • 1...Ke6
        • 2.Qe7#
      • 1...Kxf6
        • 2.Kd5#

Anticipated by 4576(1880), 109817(1891), 95234(1898), 92667(1900), 2409(1904)

This anticipates 208458(1950), 18161(1953)

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::QAB1(F)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • K(G);P-FLIGHT
    • Threat
      • QAR2(F)
    • Vars
      • K(c);P-FLIGHT::QAB(F)+K(G)
      • K(c);P-FLIGHT::QAR1(F)
      • K(c);S_FLIGHT,XP(E)::R(D)+K(G)


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).