Problem Display
PID: 254471 (2K2n2/4b3/1k3N2/R2PPr2/p1p2q2/4N3/b3p3/4B2Q w - - 0 1)

Dittrich, Kurt

Die Schwalbe, 1930

2K2n2/4b3/1k3N2/R2PPr2/p1p2q2/4N3/b3p3/4B2Q

#4

8 + 9


SOLUTION


  • SOUND
  • Keys
    • 1.Qg1!
      • threat
        • 2.Sxc4#
      • 1...Qf2
        • 2.Qg6
          • threat
            • 3.Sd7#
          • 2...Qxe1
            • 3.Sd7+
              • 3...Kxa5
                • 4.Qb6#
          • 2...Rxf6
            • 3.Qb1+
              • 3...Bxb1
                • 4.Sxc4#
              • 3...Bb3
                • 4.Sxc4#
              • 3...Bb4
                • 4.Qxb4#
          • 2...Bxf6
            • 3.Qe8
              • threat
                • 4.Qb5#
                • 4.Qc6#
              • 3...Sd7
                • 4.Qe6#
          • 2...Bb4
            • 3.Sd7+
              • 3...Kxa5
                • 4.Qb6#
          • 2...c3
            • 3.Sd7+
              • 3...Kxa5
                • 4.Qb6#
          • 2...Bd6
            • 3.Sd7+
              • 3...Sxd7
                • 4.Qxd6#
            • 3.Qe8
              • threat
                • 4.Qb5#
                • 4.Qc6#
              • 3...Sd7
                • 4.Sxd7#
      • 1...Qd4
        • 2.Sxc4+
          • 2...Bxc4
            • 3.Qxd4+
              • 3...Bc5
                • 4.Qxc5#
      • 1...Bc5
        • 2.Qg7
          • threat
            • 3.Qa7#
            • 3.Qb7#
            • 3.Qc7#
          • 2...Be7
            • 3.Qxe7
              • threat
                • 4.Qb4#
                • 4.Qc5#
                • 4.Qd6#
                • 4.Qd8#
                • 4.Qa7#
                • 4.Qb7#
                • 4.Qc7#

FEATURES


NOT CLASSIFIED


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).