MESON Chess Problem Database

Problem Display
PID: 187663 (Q7/8/8/8/1r6/N2B4/1kP2K2/2R5 w - - 0 1)

White, Alain Campbell

Sp. Prize, British Chess Magazine, 1909

Q7/8/8/8/1r6/N2B4/1kP2K2/2R5

#2

6 + 2

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Keys
    • 1.Sc4+!
      • 1...Kxc1
        • 2.Qh1#
      • 1...Kc3
        • 2.Qh8#
      • 1...Rxc4
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(D);CHECK
    • Vars
      • K(a);S_FLIGHT,XR(A)::QAR(F)
      • K(a);S_FLIGHT::QAB(F)
      • R(b);XS(D)::QAB1(F)
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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).