Problem Display
PID: 37005 (b7/1k6/8/3K4/8/8/8/2Q5 w - - 0 1)

Dehler, Otto Georg Edgar

Basler Nachrichten, 1934

b7/1k6/8/3K4/8/8/8/2Q5

#4

2 + 2


4349 Kleinste Schachaufgaben Drei- und Viersteiner 1970

SOLUTION


  • SOUND
  • Keys
    • 1.Kd6!
      • threat
        • 2.Qc7+
          • 2...Ka6
            • 3.Kc5
              • threat
                • 4.Qb6#
        • 2.Qc5
          • threat
            • 3.Qa5
              • 3...Kb8
                • 4.Qc7#
              • 3...Kc8
                • 4.Qc7#
                • 4.Qxa8#
          • 2...Ka6
            • 3.Kc7
              • threat
                • 4.Qb6#
      • 1...Ka6
        • 2.Qc5
          • threat
            • 3.Kc7
              • threat
                • 4.Qb6#
          • 2...Kb7
            • 3.Qa5
              • 3...Kb8
                • 4.Qc7#
              • 3...Kc8
                • 4.Qc7#
                • 4.Qxa8#
      • 1...Kb6
        • 2.Qc5+
          • 2...Ka6
            • 3.Kc7
              • threat
                • 4.Qb6#
          • 2...Kb7
            • 3.Qa5
              • 3...Kb8
                • 4.Qc7#
              • 3...Kc8
                • 4.Qc7#
                • 4.Qxa8#
      • 1...Ka7
        • 2.Qc5+
          • 2...Ka6
            • 3.Kc7
              • threat
                • 4.Qb6#
          • 2...Kb7
            • 3.Qa5
              • 3...Kb8
                • 4.Qc7#
              • 3...Kc8
                • 4.Qc7#
                • 4.Qxa8#

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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).