Problem Display
PID: 236145 (k7/P1p5/R1P1p3/3pp3/1pN1P3/3B4/P7/4BK2 w - - 0 1)

Ubeleisen, Adam

Hamburger Problem-Nachrichten, 1949

k7/P1p5/R1P1p3/3pp3/1pN1P3/3B4/P7/4BK2

#4

9 + 6


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Keys
    • 1.Ra4!
      • 1...dxc4
        • 2.Bf2
          • threat
            • 3.Rxb4
              • threat
                • 4.Rb8#
          • 2...cxd3
            • 3.Rxb4
              • 3...d2
                • 4.Rb8#
          • 2...b3
            • 3.Rb4
              • threat
                • 4.Rb8#
          • 2...c3
            • 3.Rxb4
              • 3...c2
                • 4.Rb8#
            • 3.Ba6
              • threat
                • 4.Bb7#
      • 1...dxe4
        • 2.Sb6+
          • 2...cxb6
            • 3.Bxe4
              • threat
                • 4.c7#
        • 2.Bxe4
          • 2...b3
            • 3.Sb6+
              • 3...cxb6
                • 4.c7#
      • 1...b3
        • 2.Sa3
          • threat
            • 3.Sb5
              • threat
                • 4.Sxc7#
      • 1...d4
        • 2.Sa3
          • threat
            • 3.Sb5
              • 3...b3
                • 4.Sxc7#
          • 2...bxa3
            • 3.Ba5
              • 3...Kxa7
                • 4.Bxc7#
          • 2...b3
            • 3.Sb5
              • threat
                • 4.Sxc7#

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).