Problem Display
PID: 150624 (8/3K4/8/2pk4/8/2P5/8/BQ2N3 w - - 0 1)

Edwards, Brian

British Chess Magazine, 1989

8/3K4/8/2pk4/8/2P5/8/BQ2N3

#2

5 + 2


15235 Bedwards Best (Brian Edwards) 2014

SOLUTION


  • SOUND
  • Sets
    • 1...c4
      • 2.Qf5#
  • Tries
    • 1.Sf3?
      • threat
        • 2.Qd3#
      • 1...c4
        • 2.Qf5#
      • 1...Kc4!
  • Keys
    • 1.Sg2!
      • 1...Kc4
        • 2.Se3#
      • 1...Ke5
        • 2.c4#
      • 1...c4
        • 2.Qf5#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(a);SBLOCK::QAR2(B)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR2(B)
      • Vars
        • P(a);SBLOCK::QAR2(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(b);S_FLIGHT::S(C)
      • K(b);P-FLIGHT::B(A)+P(D)
      • P(a);SBLOCK::QAR2(B)


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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).