MESON Chess Problem Database

Problem Display
PID: 152591 (1B1RrRr1/q1nBkP1K/8/Q1nppPp1/8/8/8/8 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1941

1B1RrRr1/q1nBkP1K/8/Q1nppPp1/8/8/8/8

#2

8 + 9

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.fxg8S#
    • 1...Kxd8
      • 2.fxe8Q#
    • 1...Sb5
      • 2.fxe8Q#
      • 2.fxe8R#
    • 1...Sa6
      • 2.fxe8Q#
      • 2.fxe8R#
    • 1...Se6
      • 2.fxe8Q#
      • 2.fxe8R#
    • 1...Sa8
      • 2.fxe8Q#
      • 2.fxe8R#
  • Keys
    • 1.f6+!
      • 1...Kd6
        • 2.fxe8S#
      • 1...Kxf6
        • 2.fxg8S#
      • 1...Kxd8
        • 2.fxe8Q#
      • 1...Kxf8
        • 2.fxg8Q#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(g);S_FLIGHT::PXR(i)=S
    • K(g);P_SPINR(h),P_SPINS(f),S_FLIGHT,XR(G)::PXR(h)=Q
    • S(f);N_GUARD::PXR(h)=Q
  • Actual
    • P(B);CHECK
    • Vars
      • K(g);P_SPINS(f),S_FLIGHT::PXR(h)=S
      • K(g);S_FLIGHT,XP(B)::PXR(i)=S
      • K(g);P_SPINR(h),P_SPINS(f),S_FLIGHT,XR(G)::PXR(h)=Q
      • K(g);P_SPINR(h),S_FLIGHT,XR(H)::PXR(i)=Q
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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).