Problem Display
PID: 170594 (4B3/8/8/3n4/8/k2N1Q2/4P3/K7 w - - 0 1)

Meck, Karl

Basler Nachrichten, 1965

4B3/8/8/3n4/8/k2N1Q2/4P3/K7

#3

5 + 2


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Sets
    • 1...Sf6
      • 2.Qb7
        • threat
          • 3.Qb2#
          • 3.Qb4#
  • Tries
    • 1.Sc1+?
      • 1...Sc3
        • 2.Qxc3#
        • 2.Qf8#
      • 1...Se3
        • 2.Qf8#
      • 1...Kb4!
    • 1.Se1+?
      • 1...Se3
        • 2.Qb7
          • threat
            • 3.Qb2#
          • 2...Sc2+
            • 3.Sxc2#
          • 2...Sd1
            • 3.Sc2#
          • 2...Sc4
            • 3.Sc2#
      • 1...Kb4!
    • 1.Qe4?
      • threat
        • 2.Qa4#
      • 1...Sc3
        • 2.Qb4#
      • 1...Sb4
        • 2.Qxb4#
      • 1...Sb6
        • 2.Qb4#
      • 1...Kb3!
    • 1.Qf6?
      • threat
        • 2.Qb2#
      • 1...Kb3
        • 2.Qb2+
          • 2...Kc4
            • 3.Bb5#
      • 1...Sxf6!
  • Keys
    • 1.Ba4!
      • threat
        • 2.Qe4
          • 2...Sb4
            • 3.Qxb4#
          • 2...Sc3
            • 3.Qb4#
          • 2...Se3
            • 3.Qb4#
          • 2...Sf4
            • 3.Qb4#
          • 2...Sb6
            • 3.Qb4#
          • 2...Sf6
            • 3.Qb4#
          • 2...Sc7
            • 3.Qb4#
          • 2...Se7
            • 3.Qb4#
      • 1...Kxa4
        • 2.Qxd5
          • 2...Ka3
            • 3.Qa2#
      • 1...Se3
        • 2.Qf8+
          • 2...Kxa4
            • 3.Qb4#
      • 1...Sc3
        • 2.Qf8+
          • 2...Kxa4
            • 3.Qb4#
      • 1...Sb4
        • 2.Qf8
          • 2...Kxa4
            • 3.Qxb4#
      • 1...Sf4
        • 2.Qb7
          • threat
            • 3.Qb3#
            • 3.Qb4#
          • 2...Kxa4
            • 3.Qb4#
      • 1...Sb6
        • 2.Qf8+
          • 2...Kxa4
            • 3.Qb4#
      • 1...Sf6
        • 2.Qb7
          • threat
            • 3.Qb3#
            • 3.Qb4#
          • 2...Kxa4
            • 3.Qb4#
        • 2.Qa8
          • threat
            • 3.Bd1#
            • 3.Bc2#
      • 1...Sc7
        • 2.Qf8+
          • 2...Kxa4
            • 3.Qb4#
      • 1...Se7
        • 2.Qb7
          • threat
            • 3.Qb3#
            • 3.Qb4#
          • 2...Kxa4
            • 3.Qb4#

FEATURES


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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).