MESON Chess Problem Database

Problem Display
PID: 175592 (8/b5p1/p5P1/N1kN4/K1Pp4/8/2Q4B/4n3 w - - 0 1)

van Dijk, Johannes

Tijdschrift vd NSB, 1900

8/b5p1/p5P1/N1kN4/K1Pp4/8/2Q4B/4n3

#2

7 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Qf2#
  • Tries
    • 1.Sf6?
      • threat
        • 2.Sd7#
      • 1...Kb6
        • 2.Sd7#
        • 2.c5#
      • 1...d3
        • 2.Qf2#
      • 1...gxf6!
    • 1.Qe4?
      • threat
        • 2.Qe7#
      • 1...d3
        • 2.Qe3#
      • 1...Bb8!
    • 1.Qf5?
      • threat
        • 2.Qc8#
        • 2.Qf8#
      • 1...d3
        • 2.Qf2#
      • 1...Bb6
        • 2.Sc3#
        • 2.Se3#
        • 2.Sb4#
        • 2.Sf6#
        • 2.Sc7#
        • 2.Se7#
        • 2.Qf8#
      • 1...Bb8!
    • 1.Qe2?
      • threat
        • 2.Qe7#
      • 1...d3
        • 2.Qf2#
        • 2.Qe3#
      • 1...Bb8!
  • Keys
    • 1.Sb6!
      • threat
        • 2.Sd7#
      • 1...Kxb6
        • 2.c5#
      • 1...Bxb6
        • 2.Qf5#
      • 1...d3
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB::QAB(A)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • P(b);OGATEB::QAB(A)
      • Refutation
        • P(f);XS(F)
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Vars
        • P(b);OGATEB::QAB(A)
      • Refutation
        • B(e);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);OGATEB::QAB(A)
      • Refutation
        • B(e);
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Refutation
        • B(e);
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(c);OGATE,S_FLIGHT,XS(F)::P(D)
      • B(e);SBLOCK,XS(F)::QAR(A)
      • P(b);OGATEB::QAB(A)
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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).