Problem Display
PID: 20235 (2n5/3p4/1R6/8/p7/kr2R3/5B2/K7 w - - 0 1)

Kraemer, Adolf Herrmann Rudolf Ferdinand

2nd Prize, Schach, 1952

2n5/3p4/1R6/8/p7/kr2R3/5B2/K7

#4

4 + 5


SOLUTION


  • SOUND
  • Keys
    • 1.Rh3!
      • threat
        • 2.Bc5#
      • 1...d6
        • 2.Bg3
          • threat
            • 3.Bf4
              • threat
                • 4.Bc1#
              • 3...Sxb6
                • 4.Bxd6#
              • 3...Re3
                • 4.Rxe3#
          • 2...Rb1+
            • 3.Kxb1
              • threat
                • 4.Be1#
                • 4.Bf2#
                • 4.Bh2#
                • 4.Bf4#
                • 4.Bh4#
                • 4.Be5#
                • 4.Bxd6#
            • 3.Rxb1
              • threat
                • 4.Be1#
                • 4.Bf2#
                • 4.Bh2#
                • 4.Bf4#
                • 4.Bh4#
                • 4.Be5#
                • 4.Bxd6#
          • 2...Rc3
            • 3.Bxd6+
              • 3...Sxd6
                • 4.Rxc3#
          • 2...Rd3
            • 3.Bxd6+
              • 3...Sxd6
                • 4.Rxd3#
          • 2...Re3
            • 3.Bxd6+
              • 3...Sxd6
                • 4.Rxe3#
          • 2...Rf3
            • 3.Bxd6+
              • 3...Sxd6
                • 4.Rxf3#
          • 2...d5
            • 3.Bf4
              • threat
                • 4.Bc1#
              • 3...Sxb6
                • 4.Bd6#
              • 3...Re3
                • 4.Rxe3#

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).