MESON Chess Problem Database

Problem Display
PID: 136964 (6n1/1K1k1P2/2p1NnNR/b1P5/8/4R3/8/8 w - - 0 1)

Janevski, Zivko

Liga Problemista, 1983/2

6n1/1K1k1P2/2p1NnNR/b1P5/8/4R3/8/8

#2

7 + 5

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Bd8
      • 2.Sef8#
    • 1...Se8
      • 2.f8S#
    • 1...Se7
      • 2.Sgf8#
  • Tries
    • 1.fxg8Q?
      • threat
        • 2.Qf7#
        • 2.Qc8#
      • 1...Bd8
        • 2.Sef8#
        • 2.Qxd8#
      • 1...Sd5
        • 2.Qc8#
      • 1...Se8
        • 2.Qf7#
      • 1...Sxg8!
  • Keys
    • 1.f8Q!
      • threat
        • 2.Qc8#
      • 1...Bd8
        • 2.Qxd8#
      • 1...Se8
        • 2.Se5#
      • 1...Se7
        • 2.Qxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::S(C)
    • S(c);SBLOCK::P=S
    • S(e);SBLOCK::S(D)
  • Tries
    • Try
      • P(G);XS(e)
      • Threat
        • DUALS(2)
      • Vars
        • S(c);::QAB1(G)
        • S(c);::QAR2(G)
      • Refutation
        • S(c);XQ(G)
  • Actual
    • P(G);
    • Threat
      • QAB1(G)
    • Vars
      • B(a);N_GUARD::QAR1(G),XB(a)
      • S(c);::S(D)
      • S(e);N_GUARD::QAR1(G),XS(e)
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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).