Problem Display
PID: 20371 (8/6p1/3BPpP1/5k1p/2P1N3/3PPP1K/2R5/1B6 w - - 0 1)

Hartong, Jan

Probleemblad, 1971

8/6p1/3BPpP1/5k1p/2P1N3/3PPP1K/2R5/1B6

#4

11 + 4


SOLUTION


  • SOUND
  • Keys
    • 1.Bf8!
      • threat
        • 2.Rg2
          • threat
            • 3.Sc5
              • threat
                • 4.d4#
              • 3...Ke5
                • 4.d4#
            • 3.d4
              • threat
                • 4.Sc5#
                • 4.Sg5#
              • 3...Kxe6
                • 4.Sc5#
          • 2...Ke5
            • 3.d4+
              • 3...Kf5
                • 4.Sc5#
                • 4.Sg5#
              • 3...Kxe6
                • 4.Sc5#
          • 2...Kxe6
            • 3.Sc5+
              • 3...Ke5
                • 4.d4#
              • 3...Kf5
                • 4.d4#
          • 2...h4
            • 3.Sc5
              • 3...Ke5
                • 4.d4#
            • 3.d4
              • 3...Kxe6
                • 4.Sc5#
      • 1...Ke5
        • 2.d4+
          • 2...Kf5
            • 3.Rg2
              • threat
                • 4.Sc5#
                • 4.Sg5#
              • 3...Kxe6
                • 4.Sc5#
          • 2...Kxe6
            • 3.Sc5+
              • 3...Kf5
                • 4.Rg2#
      • 1...Kxe6
        • 2.Sc5+
          • 2...Ke5
            • 3.d4+
              • 3...Kf5
                • 4.Rg2#
          • 2...Kf5
            • 3.Rg2
              • threat
                • 4.d4#
              • 3...Ke5
                • 4.d4#
      • 1...Kxg6
        • 2.Rg2+
          • 2...Kf5
            • 3.Sc5
              • threat
                • 4.d4#
              • 3...Ke5
                • 4.d4#
          • 2...Kh6
            • 3.Bxg7+
              • 3...Kh7
                • 4.Sxf6#
            • 3.Sxf6
              • 3...h4
                • 4.Bxg7#
          • 2...Kh7
            • 3.Bxg7
              • threat
                • 4.Sxf6#
              • 3...Kg8
                • 4.Sxf6#
              • 3...f5
                • 4.Sf6#
      • 1...h4
        • 2.Rg2
          • threat
            • 3.Sc5
              • 3...Ke5
                • 4.d4#
            • 3.d4
              • 3...Kxe6
                • 4.Sc5#
          • 2...Ke5
            • 3.d4+
              • 3...Kf5
                • 4.Sc5#
                • 4.Sg5#
              • 3...Kxe6
                • 4.Sc5#
          • 2...Kxe6
            • 3.Sc5+
              • 3...Ke5
                • 4.d4#
              • 3...Kf5
                • 4.d4#

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).