MESON Chess Problem Database

Problem Display
PID: 6762 (6Q1/3k4/K2B4/8/2N3P1/8/8/8 w - - 0 1)

Massmann, Wilhelm Karl Heinrich

Kieler Neueste Nachrichten, 1933

6Q1/3k4/K2B4/8/2N3P1/8/8/8

#2

5 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Sb6+?
      • 1...Kc6
        • 2.Qd5#
      • 1...Kxd6!
    • 1.Qf7+?
      • 1...Kc6
        • 2.Qb7#
      • 1...Kc8
        • 2.Qe8#
        • 2.Qc7#
      • 1...Kd8!
    • 1.Qh7+?
      • 1...Kc6
        • 2.Qb7#
      • 1...Ke6
        • 2.Qf5#
      • 1...Kc8
        • 2.Qc7#
      • 1...Ke8
        • 2.Qe7#
      • 1...Kd8!
    • 1.Qb8?
      • 1...Kc6
        • 2.Qb5#
        • 2.Qb7#
      • 1...Ke6!
    • 1.Qf8?
      • 1...Ke6
        • 2.Qf5#
      • 1...Kc6!
  • Keys
    • 1.Qg5!
      • 1...Kc6
        • 2.Qb5#
      • 1...Ke6
        • 2.Qf5#
      • 1...Kc8
        • 2.Sb6#
      • 1...Ke8
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT,XB(D)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(E)
        • K(a);S_FLIGHT::QAB1(E)
        • K(a);OGATE,S_FLIGHT::QAR1(E)
        • K(a);S_FLIGHT::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(a);S_FLIGHT::QAB1(E)
      • K(a);S_FLIGHT::S(A)
      • K(a);S_FLIGHT::QAR1(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).