MESON Chess Problem Database

Problem Display
PID: 152966 (8/8/6pk/6NN/7P/6KQ/8/8 w - - 0 1)

Aleksandrov, Vladimir Aleksandrovich

Best Problems, 2004

8/8/6pk/6NN/7P/6KQ/8/8

#2

5 + 2

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Sf7+?
      • 1...Kxh5
        • 2.Qg4#
      • 1...Kh7!
    • 1.Qf1?
      • 1...gxh5
        • 2.Qf6#
      • 1...Kxh5!
    • 1.Qc8?
      • threat
        • 2.Qh8#
      • 1...Kxh5
        • 2.Qh8#
      • 1...gxh5!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qh7#
      • 1...Kxh5
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(b);P-FLIGHT,XS(E)::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • P(a);OGATEB,SBLOCK,XS(E)::QAR2(B)
      • Refutation
        • K(b);P-FLIGHT,XS(E)
    • Try
      • Q(B);
      • Threat
        • QAR2(B)
      • Vars
        • K(b);P-FLIGHT,XS(E)::QAR(B)
      • Refutation
        • P(a);XS(E)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • K(b);P-FLIGHT,XS(E)::QAR2(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).