MESON Chess Problem Database

Problem Display
PID: 148865 (8/7K/1P1Pp3/3pk3/3p4/6P1/2Q1P3/8 w - - 0 1)

Dawson, Thomas Rayner

Pittsburgh Sun, 1913

(First published on Sat Nov 29 1913)

8/7K/1P1Pp3/3pk3/3p4/6P1/2Q1P3/8

#2

6 + 4

15256 TRD Scrapbook 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd6
      • 2.Qc7#
  • Tries
    • 1.Kg6?
      • 1...Kxd6
        • 2.Qc7#
      • 1...d3!
    • 1.Kg7?
      • 1...Kxd6
        • 2.Qc7#
      • 1...d3!
    • 1.Qd2?
      • threat
        • 2.Qf4#
      • 1...Ke4
        • 2.Qf4#
      • 1...Kf5
        • 2.Qf4#
      • 1...Kf6
        • 2.Qf4#
      • 1...Kxd6!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Qf4#
      • 1...Ke4
        • 2.Qf4#
      • 1...Kf5
        • 2.Qf4#
      • 1...Kxd6
        • 2.Qc7#
      • 1...Kf6
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);OGATEB,S_FLIGHT,XP(E)::QAB1(A)
  • Tries
    • Try
      • K(F);S_FLIGHT
      • Vars
        • K(c);OGATEB,S_FLIGHT,XP(E)::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(c);OGATEB,S_FLIGHT,XP(E)::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(c);P-FLIGHT::QAR1(A)
        • K(c);S_FLIGHT::QAR2(A)
      • Refutation
        • K(c);S_FLIGHT,XP(E)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(c);P-FLIGHT::QAR1(A)
      • K(c);OGATEB,S_FLIGHT,XP(E)::QAB1(A)
      • K(c);S_FLIGHT::QAR2(A)
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).