Problem Display
PID: 34214 (K7/B7/6p1/6P1/2p4p/2N1pQ1B/5bn1/4rkr1 w - - 0 1)

Massmann, Wilhelm Karl Heinrich

Die Schwalbe, 1937

K7/B7/6p1/6P1/2p4p/2N1pQ1B/5bn1/4rkr1

#4

6 + 9


SOLUTION


  • SOUND
  • Keys
    • 1.Qd5!
      • threat
        • 2.Qf3
          • 2...Ra1
            • 3.Qe2#
          • 2...Rb1
            • 3.Qe2#
          • 2...Rc1
            • 3.Qe2#
          • 2...Rd1
            • 3.Qe2#
          • 2...Re2
            • 3.Qxe2#
          • 2...Rh1
            • 3.Qxg2#
          • 2...e2
            • 3.Qxf2#
      • 1...Re2
        • 2.Qd1+
          • 2...Re1
            • 3.Qf3
              • 3...Ra1
                • 4.Qe2#
              • 3...Rb1
                • 4.Qe2#
              • 3...Rc1
                • 4.Qe2#
              • 3...Rd1
                • 4.Qe2#
              • 3...Re2
                • 4.Qxe2#
              • 3...Rh1
                • 4.Qxg2#
              • 3...e2
                • 4.Qxf2#
      • 1...Bg3
        • 2.Qf7+
          • 2...Bf2
            • 3.Qf3
              • 3...Ra1
                • 4.Qe2#
              • 3...Rb1
                • 4.Qe2#
              • 3...Rc1
                • 4.Qe2#
              • 3...Rd1
                • 4.Qe2#
              • 3...Re2
                • 4.Qxe2#
              • 3...Rh1
                • 4.Qxg2#
              • 3...e2
                • 4.Qxf2#

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).