Problem Display
PID: 70635 (n2r4/6pR/1p4P1/pBkp1N1K/3pp2p/1Q6/3p3B/1bbrn3 w - - 0 1)

Horwitz, Walter

Chess, 1951

n2r4/6pR/1p4P1/pBkp1N1K/3pp2p/1Q6/3p3B/1bbrn3

#5

7 + 15


SOLUTION


  • SOUND
  • Keys
    • 1.Rh8!
      • threat
        • 2.Rxd8
          • threat
            • 3.Bd6#
            • 3.Rxd5#
      • 1...Rxh8+
        • 2.Kg4
          • threat
            • 3.Bd6#
          • 2...Rd8
            • 3.Sxd4
              • threat
                • 4.Se6#
                • 4.Qc3#
              • 3...Kxd4
                • 4.Qe3+
                  • 4...Kxe3
                    • 5.Bg1#
      • 1...Ba2
        • 2.Bd6+
          • 2...Rxd6
            • 3.Rc8+
              • 3...Sc7
                • 4.Rxc7+
                  • 4...Rc6
                    • 5.Rxc6#
      • 1...Bc2
        • 2.Bd6+
          • 2...Rxd6
            • 3.Rc8+
              • 3...Sc7
                • 4.Rxc7+
                  • 4...Rc6
                    • 5.Rxc6#
      • 1...Bd3
        • 2.Bd6+
          • 2...Rxd6
            • 3.Rc8+
              • 3...Sc7
                • 4.Rxc7+
                  • 4...Rc6
                    • 5.Rxc6#
        • 2.Rxd8
          • threat
            • 3.Bd6#
            • 3.Rxd5#
          • 2...Be2+
            • 3.Bxe2
              • threat
                • 4.Qb5#
              • 3...Sd3
                • 4.Rc8+
                  • 4...Sc7
                    • 5.Rxc7#
              • 3...Sc7
                • 4.Rc8
                  • threat
                    • 5.Rxc7#
                    • 5.Qb5#
                  • 4...Kc6
                    • 5.Rxc7#
                  • 4...b5
                    • 5.Qxb5#
              • 3...d3
                • 4.Rc8+
                  • 4...Sc7
                    • 5.Rxc7#
          • 2...Bxb5
            • 3.Rc8+
              • 3...Sc7
                • 4.Bd6+
                  • 4...Kc6
                    • 5.Rxc7#
                • 4.Rxc7+
                  • 4...Bc6
                    • 5.Bd6#
      • 1...a4
        • 2.Bd6+
          • 2...Rxd6
            • 3.Rc8+
              • 3...Sc7
                • 4.Rxc7+
                  • 4...Rc6
                    • 5.Rxc6#

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).