Problem Display
PID: 132962 (8/8/8/3N4/3kP3/5P1Q/K6P/8 w - - 0 1)

Ender, Adolf

Heilbronner Stimme, 1999

8/8/8/3N4/3kP3/5P1Q/K6P/8

#4

6 + 1


14503 Problemschach-Jahrbuch (1999) 2000

SOLUTION


  • SOUND
  • Keys
    • 1.Qf1!
      • threat
        • 2.Qb5
          • 2...Ke5
            • 3.Qc6
              • 3...Kd4
                • 4.Qc3#
            • 3.Qb4
              • 3...Ke6
                • 4.Qe7#
            • 3.Qc5
              • 3...Ke6
                • 4.Qe7#
      • 1...Kc5
        • 2.Qa6
          • 2...Kd4
            • 3.Kb3
              • 3...Kc5
                • 4.Qb6#
              • 3...Ke5
                • 4.Qf6#
      • 1...Ke5
        • 2.Qa6
          • 2...Kd4
            • 3.Kb3
              • 3...Kc5
                • 4.Qb6#
              • 3...Ke5
                • 4.Qf6#

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).