MESON Chess Problem Database

Problem Display
PID: 20931 (R6Q/1R3PNP/2p4k/K3Npr1/4p2r/8/8/8 w - - 0 1)

Albert, Bernard

Good Companions (December), 1914

R6Q/1R3PNP/2p4k/K3Npr1/4p2r/8/8/8

#2

8 + 6

3132 The Good Companion Two-Mover 1922

SOLUTION

  • SOUND
  • Keys
    • 1.Qd8!
      • threat
        • 2.h8Q#
      • 1...Kxg7
        • 2.f8Q#
      • 1...Kxh7
        • 2.Qh8#
      • 1...Rxg7
        • 2.Qxh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(H);
    • Threat
      • P=Q
    • Vars
      • K(f);S_FLIGHT,XS(E)::P=Q
      • K(f);OGATEB,P-FLIGHT,XP(F)::QAR1(H)
      • R(d);OGATE,SBLOCK,XS(E)::QAR2(H),XR(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).