Problem Display
PID: 136431 (5br1/4p1p1/6p1/5p2/2p5/p1K4p/p7/kb1Q4 w - - 0 1)

Densmore, Darso James

The Problem, 1914

5br1/4p1p1/6p1/5p2/2p5/p1K4p/p7/kb1Q4

#4

2 + 12


14689 A Memorial to D. J. Densmore 1920

SOLUTION


  • SOUND
  • Keys
    • 1.Qe1!
      • threat
        • 2.Kxc4
          • threat
            • 3.Qc3#
            • 3.Qe5#
          • 2...Kb2
            • 3.Qc3#
      • 1...e5
        • 2.Kxc4
          • threat
            • 3.Qc3#
            • 3.Qxe5#
          • 2...Bb4
            • 3.Qxe5+
              • 3...Bc3
                • 4.Qxc3#
      • 1...Rh8
        • 2.Kd2
          • threat
            • 3.Qe5+
              • 3...c3+
                • 4.Qxc3#
            • 3.Kc1
              • threat
                • 4.Qc3#
              • 3...c3
                • 4.Qxc3#
            • 3.Qc1
              • threat
                • 4.Qc3#
              • 3...c3+
                • 4.Qxc3#
          • 2...c3+
            • 3.Kc1
              • threat
                • 4.Qxc3#
              • 3...c2
                • 4.Qc3#
                • 4.Qe5#
          • 2...Kb2
            • 3.Qe5+
              • 3...Kb3
                • 4.Qb5#
              • 3...c3+
                • 4.Qxc3#
          • 2...e5
            • 3.Qxe5+
              • 3...c3+
                • 4.Qxc3#
      • 1...e6
        • 2.Kxc4
          • threat
            • 3.Qc3#
            • 3.Qe5#
          • 2...Bb4
            • 3.Qe5+
              • 3...Bc3
                • 4.Qxc3#

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).