MESON Chess Problem Database

Problem Display
PID: 153502 (6RB/1B2p3/5p1q/2P1k1pn/r1n1NNK1/2P1p1P1/8/8 w - - 0 1)

Dawson, Thomas Rayner

Bath Chronicle, 1947

(First published on Wed Dec 31 1947)

6RB/1B2p3/5p1q/2P1k1pn/r1n1NNK1/2P1p1P1/8/8

#2

9 + 9

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qf8
      • 2.Rxg5#
    • 1...e6
      • 2.Sd3#
  • Keys
    • 1.Sxg5!
      • threat
        • 2.Sd3#
        • 2.Sf3#
        • 2.Sf7#
      • 1...Qxg5+
        • 2.Rxg5#
      • 1...Sxf4
        • 2.gxf4#
      • 1...Qg7
        • 2.Sd3#
      • 1...Qf8
        • 2.Sd3#
        • 2.Sg6#
        • 2.Sf3#
      • 1...Qg6
        • 2.Sxg6#
      • 1...Qh7
        • 2.Sf3#
      • 1...Sb2
        • 2.Sf3#
        • 2.Sf7#
      • 1...Sd2
        • 2.Sf7#
      • 1...Sa3
        • 2.Sf3#
        • 2.Sf7#
      • 1...Sa5
        • 2.Sf3#
        • 2.Sf7#
      • 1...Sb6
        • 2.Sf3#
        • 2.Sf7#
      • 1...Sd6
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • Q(h);N_GUARD::R(H),XP(e)
    • P(i);SBLOCK::S(D)
  • Actual
    • S(C);XP(e)
    • Threat
      • DUALS(3)
    • Vars
      • Q(h);CHECK,OGATE,XS(C)::R(H),XQ(h)
      • S(f);OGATE,XS(D)::P(B),XS(f)
      • Q(h);N_SPINP(g),P_PINS(C)::S(D)
      • Q(h);N_GUARD,P_PINS(C)::S(D),XQ(h)
      • Q(h);::S(C)
      • S(c);P_PINS(D)::S(C)
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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).