MESON Chess Problem Database

Problem Display
PID: 140836 (1n5n/8/8/2p1N2p/8/4pQ2/p1p4r/k1K2b2 w - - 0 1)

Sibinovski, Zoran

Liga Problemista, 1989/2

1n5n/8/8/2p1N2p/8/4pQ2/p1p4r/k1K2b2

#2

3 + 10

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...e2
      • 2.Qc3#
  • Keys
    • 1.Qf6!
      • threat
        • 2.Sd3#
        • 2.Sf3#
        • 2.Sc4#
        • 2.Sg4#
        • 2.Sc6#
        • 2.Sg6#
        • 2.Sd7#
        • 2.Sf7#
      • 1...Rf2
        • 2.Sf3#
      • 1...Rd2
        • 2.Sd3#
      • 1...Rh4
        • 2.Sg4#
      • 1...Bd3
        • 2.Sxd3#
        • 2.Sf3#
        • 2.Sc4#
        • 2.Sg4#
        • 2.Sc6#
        • 2.Sg6#
        • 2.Sd7#
        • 2.Sf7#
      • 1...Bc4
        • 2.Sd3#
        • 2.Sf3#
        • 2.Sxc4#
        • 2.Sg4#
        • 2.Sc6#
        • 2.Sg6#
        • 2.Sd7#
        • 2.Sf7#
      • 1...Sc6
        • 2.Sxc6#
      • 1...Sd7
        • 2.Sxd7#
      • 1...Sg6
        • 2.Sxg6#
      • 1...Sf7
        • 2.Sxf7#
      • 1...c4
        • 2.Sxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • P(f);OGATE::QAB(B)
  • Actual
    • Q(B);
    • Threat
      • DUALS(8)
    • Vars
      • R(e);::QAB(B)+S(C)
      • S(i);::QAB(B)+S(C),XS(i)
      • S(j);::QAB(B)+S(C),XS(j)
      • P(g);::QAB(B)+S(C),XP(g)
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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).