MESON Chess Problem Database

Problem Display
PID: 145492 (1K6/6p1/6Pp/Q3p3/4Nb1k/5BR1/6Pr/8 w - - 0 1)

Bridgwater, Ralph Herbert

Birmingham Post, 1921

(First published on Sun Feb 27 1921)

1K6/6p1/6Pp/Q3p3/4Nb1k/5BR1/6Pr/8

#2

7 + 6

15372 Bridgwater Scrapbook 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Rh3
      • 2.Rxh3#
    • 1...Bxg3
      • 2.Qd8#
  • Tries
    • 1.Rg5?
      • threat
        • 2.Rh5#
      • 1...Bxg5
        • 2.Qe1#
      • 1...h5
        • 2.Rxh5#
      • 1...hxg5!
    • 1.Qe1?
      • threat
        • 2.Rh3#
      • 1...Bxg3
        • 2.Qxg3#
      • 1...Rh3
        • 2.Rxh3#
      • 1...Rxg2!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Sf5#
      • 1...Kxg3
        • 2.Qe1#
      • 1...Bxg3
        • 2.Qd8#
      • 1...e4
        • 2.Rg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(a);N_GUARD::R1(C),XR(a)
    • B(b);N_GUARD,XR(C)::QAB(E)
  • Tries
    • Try
      • R(C);
      • Threat
        • R1(C)
      • Vars
        • B(b);N_GUARD,XR(C)::QAB(E)
        • P(e);::R1(C),XP(e)
      • Refutation
        • P(e);XR(C)
    • Try
      • Q(E);
      • Threat
        • QAB(E)+R(C),DCHECK
      • Vars
        • B(b);OGATE,P_SPINB(b),XR(C)::QAB1(E),XB(b)
        • R(a);::QAB(E)+R(C),DCHECK,XR(a)
      • Refutation
        • R(a);XP(A)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XR(C)::QAB(E)
      • B(b);N_GUARD,SBLOCK,XR(C)::QAB(E)
      • P(d);P_PINS(D)::R1(C)
HTML5 logo

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).