Problem Display
PID: 26278 (rk6/p2p1K1N/B1pPp3/3N2P1/p7/p2Qnp1b/1b4r1/5nq1 w - - 0 1)

Laue, Kurt

HM., Deutsche Schachbund, 1925

rk6/p2p1K1N/B1pPp3/3N2P1/p7/p2Qnp1b/1b4r1/5nq1

#4

7 + 15


SOLUTION


  • SOUND
  • Keys
    • 1.Sdf6!
      • threat
        • 2.Sxd7#
      • 1...Bxf6
        • 2.Qg6
          • threat
            • 3.Qg8+
              • 3...Bd8
                • 4.Qxd8#
            • 3.Sxf6
              • threat
                • 4.Sxd7#
                • 4.Qg8#
            • 3.Qxf6
              • threat
                • 4.Qd8#
                • 4.Qh8#
          • 2...Rxg5
            • 3.Sf8
              • threat
                • 4.Sxd7#
              • 3...e5
                • 4.Qb1#
          • 2...Bxg5
            • 3.Qg8+
              • 3...Bd8
                • 4.Qxd8#
          • 2...Be7
            • 3.Qg8+
              • 3...Bd8
                • 4.Qxd8#
              • 3...Bf8
                • 4.Qxf8#
          • 2...Bg7
            • 3.Qxg7
              • threat
                • 4.Qf8#
                • 4.Qh8#
                • 4.Qg8#
          • 2...Bd8
            • 3.Qg8
              • threat
                • 4.Qxd8#
      • 1...e5
        • 2.Sf8
          • threat
            • 3.S6xd7+
              • 3...Bxd7
                • 4.Sxd7#
            • 3.S8xd7+
              • 3...Bxd7
                • 4.Sxd7#
          • 2...Be6+
            • 3.Sxe6
              • threat
                • 4.Sxd7#
              • 3...dxe6
                • 4.Sd7#
          • 2...Bg4
            • 3.S6xd7+
              • 3...Bxd7
                • 4.Sxd7#
            • 3.S8xd7+
              • 3...Bxd7
                • 4.Sxd7#
            • 3.Sxg4
              • threat
                • 4.Sxd7#
          • 2...Bf5
            • 3.S6xd7+
              • 3...Bxd7
                • 4.Sxd7#
            • 3.S8xd7+
              • 3...Bxd7
                • 4.Sxd7#
            • 3.Qxf5
              • threat
                • 4.S6xd7#
                • 4.S8xd7#

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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).