Problem Display
PID: 271607 (qnB5/1r6/kB5R/3p4/Kpb4r/N3n3/RbP3p1/1N3Q2 w - - 0 1)

Caine, Walter Edmund

The Problemist, 1956

qnB5/1r6/kB5R/3p4/Kpb4r/N3n3/RbP3p1/1N3Q2

#4

9 + 11


SOLUTION


  • SOUND
  • Keys
    • 1.Kxb4!
      • threat
        • 2.Sxc4+
          • 2...Ba3+
            • 3.Rxa3#
      • 1...Bc3+
        • 2.Sxc3
          • threat
            • 3.Sab1#
            • 3.Sxc4#
          • 2...Bb5+
            • 3.Sc4+
              • 3...Ba4
                • 4.Rxa4#
            • 3.Bd4+
              • 3...Rxh6
                • 4.Sab1#
                • 4.Saxb5#
                • 4.Qxb5#
              • 3...Sc6+
                • 4.Rxc6#
          • 2...Sc6+
            • 3.Rxc6
              • threat
                • 4.Sab1#
                • 4.Sxc4#
              • 3...Bxf1+
                • 4.Sc4#
              • 3...Be2+
                • 4.Sc4#
              • 3...Bd3+
                • 4.Sc4#
              • 3...Bb5+
                • 4.Bd4#
              • 3...Sxc2+
                • 4.Sxc2#
      • 1...Sc6+
        • 2.Rxc6
          • threat
            • 3.Sxc4+
              • 3...Ba3+
                • 4.Rxa3#
            • 3.Sb5+
              • 3...Ba3+
                • 4.Rxa3#
              • 3...Bxa2+
                • 4.Bd4#
          • 2...Bc3+
            • 3.Sxc3
              • threat
                • 4.Sab1#
                • 4.Sxc4#
              • 3...Bxf1+
                • 4.Sc4#
              • 3...Be2+
                • 4.Sc4#
              • 3...Bd3+
                • 4.Sc4#
              • 3...Bb5+
                • 4.Bd4#
              • 3...Sxc2+
                • 4.Sxc2#
          • 2...Bxf1+
            • 3.Sc4+
              • 3...Ba3+
                • 4.Rxa3#
          • 2...Be2+
            • 3.Sc4+
              • 3...Ba3+
                • 4.Rxa3#
          • 2...Bd3+
            • 3.Sc4+
              • 3...Ba3+
                • 4.Rxa3#
          • 2...Sxc2+
            • 3.Sxc2+
              • 3...Ba3+
                • 4.Rxa3#
          • 2...Bc1
            • 3.Sxc4+
              • 3...Ba3+
                • 4.Rxa3#
            • 3.Sb5+
              • 3...Ba3+
                • 4.Rxa3#
              • 3...Bxa2+
                • 4.Bd4#

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).