Problem Display
PID: 53435 (1K1B2n1/4p3/k4P2/pp6/7R/3p4/B4r1p/3b4 w - - 0 1)

Dunhaupt, Dr Heinz Wilhelm

Schach-Express, 1950

1K1B2n1/4p3/k4P2/pp6/7R/3p4/B4r1p/3b4

#4

5 + 9


SOLUTION


  • SOUND
  • Keys
    • 1.Re4!
      • threat
        • 2.Re6#
      • 1...Rxf6
        • 2.Be6
          • threat
            • 3.Bc8#
          • 2...Bg4
            • 3.Ra4
              • threat
                • 4.Rxa5#
              • 3...bxa4
                • 4.Bc4#
      • 1...Bb3
        • 2.Bxb3
          • threat
            • 3.Re6#
          • 2...Rxf6
            • 3.Be6
              • threat
                • 4.Bc8#
              • 3...Rxe6
                • 4.Rxe6#
              • 3...b4
                • 4.Bc4#
          • 2...h1Q
            • 3.Re6+
              • 3...Qc6
                • 4.Rxc6#
          • 2...h1B
            • 3.Re6+
              • 3...Bc6
                • 4.Rxc6#
          • 2...Rc2
            • 3.Re6+
              • 3...Rc6
                • 4.Rxc6#
          • 2...Re2
            • 3.Bd5
              • threat
                • 4.Bb7#
              • 3...b4
                • 4.Bc4#
          • 2...e5
            • 3.Bd5
              • threat
                • 4.Bb7#
              • 3...b4
                • 4.Bc4#
      • 1...Bg4
        • 2.Bd5
          • threat
            • 3.Bb7#
          • 2...Bc8
            • 3.Re6+
              • 3...Bxe6
                • 4.Bb7#

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).