Problem Display
PID: 86114 (4k2K/1R2P3/3P4/8/8/1N6/8/n7 w - - 0 1)

Speckmann, Werner

Sachove umeni (Ceskoslovensky sach), 1959

4k2K/1R2P3/3P4/8/8/1N6/8/n7

#4

5 + 2


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Keys
    • 1.Sd4!
      • threat
        • 2.Kg7
          • threat
            • 3.Rb8+
              • 3...Kd7
                • 4.Rd8#
            • 3.Kf6
              • threat
                • 4.d7#
            • 3.Sf5
              • threat
                • 4.d7#
            • 3.Sc6
              • threat
                • 4.d7#
        • 2.Kg8
          • threat
            • 3.Rb8+
              • 3...Kd7
                • 4.Rd8#
            • 3.Sf5
              • threat
                • 4.Sg7#
                • 4.d7#
            • 3.Sc6
              • threat
                • 4.d7#
            • 3.Se6
              • threat
                • 4.Sg7#
      • 1...Kf7
        • 2.e8Q+
          • 2...Kf6
            • 3.Rb5
              • threat
                • 4.Rf5#
                • 4.Qe6#
            • 3.Rg7
              • threat
                • 4.Rg6#
                • 4.Qe6#
                • 4.Qe7#
            • 3.Qh5
              • threat
                • 4.Rf7#
                • 4.Qf5#
          • 2...Kxe8
            • 3.Se6
              • threat
                • 4.Re7#
        • 2.e8B+
          • 2...Kf6
            • 3.Rb5
              • threat
                • 4.Rf5#
          • 2...Kxe8
            • 3.Se6
              • threat
                • 4.Re7#
          • 2...Kf8
            • 3.Se6+
              • 3...Kxe8
                • 4.Re7#
            • 3.Ba4
              • threat
                • 4.Se6#
            • 3.Bb5
              • threat
                • 4.Se6#
            • 3.Bh5
              • threat
                • 4.Se6#
                • 4.Rb8#
            • 3.Bc6
              • threat
                • 4.Se6#
            • 3.Bg6
              • threat
                • 4.Se6#
                • 4.Rb8#
            • 3.Bf7
              • threat
                • 4.Se6#
            • 3.Re7
              • threat
                • 4.Se6#
            • 3.Rb8
              • threat
                • 4.Se6#
                • 4.Bh5#
                • 4.Bg6#
      • 1...Sb3
        • 2.Kg7
          • threat
            • 3.Rb8+
              • 3...Kd7
                • 4.Rd8#
          • 2...Sxd4
            • 3.Kf6
              • threat
                • 4.d7#

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).