MESON Chess Problem Database

Problem Display
PID: 257969 (Q7/N7/kPb5/1R6/8/8/3K4/8 w - - 0 1)

Abdullayev, Elmar

Astafyeva-30 JT (Kudesnik), 2021

Q7/N7/kPb5/1R6/8/8/3K4/8

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb5
      • 2.Sc8#
    • 1...Be8
      • 2.Qc8#
  • Keys
    • 1.b7!
      • threat
        • 2.b8S#
      • 1...Bxb5
        • 2.Sc8#
      • 1...Bxb7
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(b);N_GUARD,SBLOCK,XR(B)::QAR(E)+S(D)
    • B(b);N_GUARD::QAB(E)
  • Actual
    • P(C);
    • Threat
      • P=S
    • Vars
      • B(b);SBLOCK,XR(B)::QAR(E)+S(D)
      • B(b);OGATE,XP(C)::QAB1(E),XB(b)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).