Problem Display
PID: 35780 (8/n5n1/8/1p1K1p2/1p6/8/2PN3R/RN1rk3 w - - 0 1)

Lazard, Frederic

1st Prize, Dresdner Anzeiger, 1927

8/n5n1/8/1p1K1p2/1p6/8/2PN3R/RN1rk3

#4

6 + 7


SOLUTION


  • SOUND
  • Keys
    • 1.c4!
      • 1...bxc4
        • 2.Kxc4
          • threat
            • 3.Sf3+
              • 3...Kf1
                • 4.Sbd2#
          • 2...Rc1+
            • 3.Sc3
              • threat
                • 4.Rxc1#
                • 4.Re2#
      • 1...Sc6
        • 2.Kxc6
          • threat
            • 3.Sf3+
              • 3...Kf1
                • 4.Sbd2#
          • 2...Rc1
            • 3.Sf3+
              • 3...Kd1
                • 4.Rd2#
              • 3...Kf1
                • 4.Sbd2#
            • 3.Sc3
              • threat
                • 4.Rxc1#
                • 4.Re2#
      • 1...Sc8
        • 2.Ke5
          • threat
            • 3.Sf3+
              • 3...Kf1
                • 4.Sbd2#
          • 2...Rc1
            • 3.Sf3+
              • 3...Kd1
                • 4.Rd2#
              • 3...Kf1
                • 4.Sbd2#
            • 3.Sc3
              • threat
                • 4.Rxc1#
                • 4.Re2#
      • 1...Sh5
        • 2.Kc5
          • threat
            • 3.Sf3+
              • 3...Kf1
                • 4.Sbd2#
          • 2...Rc1
            • 3.Sf3+
              • 3...Kd1
                • 4.Rd2#
              • 3...Kf1
                • 4.Sbd2#
            • 3.Sc3
              • threat
                • 4.Rxc1#
                • 4.Re2#
      • 1...Se6
        • 2.Kxe6
          • threat
            • 3.Sf3+
              • 3...Kf1
                • 4.Sbd2#
          • 2...Rc1
            • 3.Sf3+
              • 3...Kd1
                • 4.Rd2#
              • 3...Kf1
                • 4.Sbd2#
            • 3.Sc3
              • threat
                • 4.Rxc1#
                • 4.Re2#
      • 1...Se8
        • 2.Kc5
          • threat
            • 3.Sf3+
              • 3...Kf1
                • 4.Sbd2#
          • 2...Rc1
            • 3.Sf3+
              • 3...Kd1
                • 4.Rd2#
              • 3...Kf1
                • 4.Sbd2#
            • 3.Sc3
              • threat
                • 4.Rxc1#
                • 4.Re2#
      • 1...f4
        • 2.Ke4
          • threat
            • 3.Sf3+
              • 3...Kf1
                • 4.Sbd2#
            • 3.Kf3
              • threat
                • 4.Rh1#
                • 4.Re2#
              • 3...Rxb1
                • 4.Rxb1#
          • 2...Rc1
            • 3.Sf3+
              • 3...Kd1
                • 4.Rd2#
              • 3...Kf1
                • 4.Sbd2#
            • 3.Sc3
              • threat
                • 4.Rxc1#
                • 4.Re2#
          • 2...f3
            • 3.Sxf3+
              • 3...Kf1
                • 4.Sbd2#
            • 3.Kxf3
              • threat
                • 4.Rh1#
                • 4.Re2#
              • 3...Rxb1
                • 4.Rxb1#

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).