MESON Chess Problem Database

Problem Display
PID: 76889 (8/1R6/kP6/1b6/1Rp1Q3/8/2K5/8 w - - 0 1)

Davey, David Murray

The Tablet, 1947

(First published on Sat Oct 18 1947)

8/1R6/kP6/1b6/1Rp1Q3/8/2K5/8

#2

5 + 3

15239 Valois Notebooks 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bc6
      • 2.Ra7#
    • 1...Bd7
      • 2.Ra7#
    • 1...Be8
      • 2.Ra7#
  • Tries
    • 1.Kc3?
      • 1...Bc6
        • 2.Ra7#
      • 1...Ba4
        • 2.Ra7#
      • 1...Bd7
        • 2.Ra7#
      • 1...Be8
        • 2.Ra7#
      • 1...Ka5!
    • 1.Qd5?
      • 1...Ba4+
        • 2.Rxa4#
      • 1...Ka5
        • 2.Qxb5#
      • 1...Bc6
        • 2.Ra7#
      • 1...Bd7
        • 2.Ra7#
      • 1...Be8
        • 2.Ra7#
      • 1...c3!
    • 1.Qxc4?
      • 1...Ka5
        • 2.Qxb5#
      • 1...Bxc4
        • 2.Ra7#
      • 1...Kxb7!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Ra7#
      • 1...Ba4+
        • 2.Rxa4#
      • 1...Ka5
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(b);::R1(E)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • B(b);::R1(E)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • B(b);CHECK,N_GUARD::R(B),XB(b)
        • K(c);P-FLIGHT,P_SPINB(b)::QAR1(C),XB(b)
        • B(b);::R1(E)
      • Refutation
        • P(a);
    • Try
      • Q(C);P_PINB(b),XP(a)
      • Vars
        • K(c);N_SPINB(b),P-FLIGHT::QAR1(C),XB(b)
        • B(b);N_SPINB(b),XQ(C)::R1(E)
      • Refutation
        • K(c);N_SPINB(b),S_FLIGHT,XR(E)
  • Actual
    • Q(C);
    • Threat
      • R1(E)
    • Vars
      • B(b);CHECK,N_GUARD::R(B),XB(b)
      • K(c);P-FLIGHT::QAR1(C),XB(b)
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).