Problem Display
PID: 251801 (b1r5/2b1R2p/p2kPPPK/1r5p/1N1P3p/2Q5/8/8 w - - 0 1)

Nichtawitz, Alois

Die Schwalbe, 2021

b1r5/2b1R2p/p2kPPPK/1r5p/1N1P3p/2Q5/8/8

#4

8 + 9


SOLUTION


  • SOUND
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qh2+
          • 2...Re5
            • 3.Qxe5#
      • 1...Rg5
        • 2.Kxg5
          • threat
            • 3.Qh2#
            • 3.Qc5#
          • 2...h6+
            • 3.Kxh4
              • threat
                • 4.Qh2#
                • 4.Qc5#
      • 1...Bg2
        • 2.Qc1
          • threat
            • 3.Qf4+
              • 3...Re5
                • 4.Qxe5#
          • 2...Ra5
            • 3.Qf4+
              • 3...Re5
                • 4.Qxe5#
          • 2...Re5
            • 3.Qf4
              • threat
                • 4.Qxe5#
            • 3.Qc4
              • threat
                • 4.Rd7#
              • 3...Rxe6
                • 4.Qxe6#
                • 4.Qc5#
              • 3...Rd5
                • 4.Qc6#
              • 3...Rd8
                • 4.Qxc7#
              • 3...Bd5
                • 4.Qc5#
              • 3...Bc6
                • 4.Qxc6#
          • 2...Rf5
            • 3.Qc4
              • threat
                • 4.Rd7#
              • 3...Rd5
                • 4.Qc6#
              • 3...Rd8
                • 4.Qxc7#
              • 3...Bd5
                • 4.Qc5#
              • 3...Bc6
                • 4.Qxc6#
          • 2...Rg5
            • 3.Qf4+
              • 3...Re5
                • 4.Qxe5#
            • 3.Qxg5
              • threat
                • 4.Qf4#
                • 4.Qc5#
                • 4.Qe5#

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).