MESON Chess Problem Database

Problem Display
PID: 151964 (B6B/1r2Q1nK/b6p/1ppk3p/1Pp1p2P/6R1/1PP5/8 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1936

B6B/1r2Q1nK/b6p/1ppk3p/1Pp1p2P/6R1/1PP5/8

#2

9 + 10

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qxc5#
      • 2.Qd6#
    • 1...Se6
      • 2.Qd7#
  • Tries
    • 1.Bxb7+?
      • 1...Kd4
        • 2.Bxg7#
        • 2.Qxc5#
        • 2.Qd6#
        • 2.Qf6#
        • 2.Qxe4#
        • 2.Qxg7#
        • 2.c3#
      • 1...Bxb7!
  • Keys
    • 1.Rg6!
      • threat
        • 2.Rd6#
        • 2.Qxc5#
        • 2.Qd6#
      • 1...Kd4
        • 2.Qxc5#
      • 1...cxb4
        • 2.Qd6#
      • 1...c3
        • 2.Qxc5#
      • 1...Sf5
        • 2.Qf7#
      • 1...Se6
        • 2.Qd7#
      • 1...Se8
        • 2.Qf7#
      • 1...e3
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(j);P_PINQ(F)::QAR2(F)
  • Tries
    • Try
      • B(H);CHECK,XR(i)
      • Refutation
        • B(g);XB(H)
  • Actual
    • R(C);
    • Threat
      • DUALS(3)
    • Vars
      • K(e);N_SPINR(i),P-FLIGHT,P_SPINS(j)::QAB1(F),XP(d)
      • P(d);XP(D)::QAR1(F)
      • P(a);::QAR1(F),XP(d)
      • S(j);N_GUARD,P_PINQ(F)::QAB(F)
      • S(j);P_PINQ(F)::QAR2(F)
      • P(b);::R1(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).