MESON Chess Problem Database

Problem Display
PID: 5076 (3n2Q1/2B3NB/8/5N2/2p1k3/8/2P5/6nK w - - 0 1)

van Beek, Huibrecht

1st Prize, Tijdschrift vd NSB JT, 1898

3n2Q1/2B3NB/8/5N2/2p1k3/8/2P5/6nK

#2

7 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Se6
      • 2.Qa8#
    • 1...Sf7
      • 2.Qa8#
  • Keys
    • 1.Se6!
      • threat
        • 2.Sg5#
      • 1...Kf3
        • 2.Qg2#
      • 1...Kd5
        • 2.Se7#
      • 1...Sxe6
        • 2.Qa8#
      • 1...Sf3
        • 2.Sc5#
      • 1...Sh3
        • 2.Qg2#
      • 1...Sf7
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(d);OGATE::QAB(G)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(c);S_FLIGHT::QAB1(G)
      • K(c);S_FLIGHT::S(C)
      • S(d);OGATE,XS(E)::QAB(G)
      • S(a);SBLOCK::S(E)
      • S(a);N_GUARD::QAB(G)
      • S(d);OGATE::QAB(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).