MESON Chess Problem Database

Problem Display
PID: 69376 (8/pK6/p3p3/B5p1/2Pk2p1/2NB2P1/4P3/2Q5 w - - 0 1)

van Dijk, Johannes

Tijdschrift vd NSB, 1897

8/pK6/p3p3/B5p1/2Pk2p1/2NB2P1/4P3/2Q5

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Qg1#
  • Tries
    • 1.Kc6?
      • 1...e5
        • 2.Qg1#
      • 1...Ke5!
    • 1.Kc7?
      • 1...Kc5
        • 2.Qe3#
        • 2.Qg1#
      • 1...e5
        • 2.Qg1#
      • 1...Ke5!
    • 1.Sb5+?
      • 1...Kc5
        • 2.Qa3#
        • 2.Qe3#
        • 2.Qg1#
      • 1...Ke5
        • 2.Bc3#
        • 2.Qb2#
        • 2.Qxg5#
        • 2.Qa1#
        • 2.Qc3#
      • 1...axb5!
    • 1.Qb2?
      • 1...Ke3
        • 2.Sd1#
      • 1...Kc5
        • 2.Se4#
      • 1...Ke5
        • 2.Sb5#
      • 1...e5!
    • 1.Qf4+?
      • 1...Kc5
        • 2.Sa4#
        • 2.Qe5#
      • 1...gxf4!
  • Keys
    • 1.Qa1!
      • 1...Ke3
        • 2.Sd1#
      • 1...Kc5
        • 2.Se4#
      • 1...Ke5
        • 2.Sb5#
      • 1...e5
        • 2.Qg1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(e);SBLOCK::QAB(A)
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Vars
        • P(e);SBLOCK::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(H);P-FLIGHT
      • Vars
        • P(e);SBLOCK::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);CHECK
      • Refutation
        • P(d);XS(C)
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::S(C)
        • K(a);S_FLIGHT::QAB(A)+S(C)
      • Refutation
        • P(e);
    • Try
      • Q(A);CHECK
      • Refutation
        • P(c);XQ(A)
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::S(C)
      • K(a);S_FLIGHT::QAB(A)+S(C)
      • P(e);SBLOCK::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).