MESON Chess Problem Database

Problem Display
PID: 148473 (4k1Kn/3N4/1p6/5BB1/2r5/b2n4/Q7/1R1R4 w - - 0 1)

Boy, Claude

diagrammes, 1975

4k1Kn/3N4/1p6/5BB1/2r5/b2n4/Q7/1R1R4

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4
      • 2.Qe6#
    • 1...Rc5
      • 2.Qe6#
    • 1...Bc5
      • 2.Qa8#
  • Keys
    • 1.Sc5!
      • threat
        • 2.Bd7#
      • 1...Rxc5
        • 2.Qe6#
      • 1...Bxc5
        • 2.Qa8#
      • 1...Sxc5
        • 2.Rd8#
      • 1...bxc5
        • 2.Rb8#
      • 1...Rd4
        • 2.Qe6#
      • 1...Se5
        • 2.Rd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(c);OGATE::QAR2(C)
    • B(a);OGATE::QAR(C)
  • Actual
    • S(F);
    • Threat
      • B(D)
    • Vars
      • R(c);OGATE,XS(F)::QAR2(C)
      • B(a);OGATE,XS(F)::QAR(C)
      • S(b);OGATE,XS(F)::R1(B)
      • P(d);OGATE,XS(F)::R(A)
      • R(c);OGATE::QAR2(C)
      • S(b);OGATE::R1(B)
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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).