Problem Display
PID: 48372 (8/1P6/2P2P2/3N1P2/Q3PP1K/1B2Nkpp/4r1pP/4B1nR w - - 0 1)

Knoppel, Jan Heribert

Eskilstuna Kuriren, 1939

8/1P6/2P2P2/3N1P2/Q3PP1K/1B2Nkpp/4r1pP/4B1nR

#4

14 + 6


3680 Jan Knoppel Udvalgte Skakproblemer 1955

SOLUTION


  • SOUND
  • Keys
    • 1.Bd1!
      • threat
        • 2.Rxg1
          • 2...gxh2
            • 3.Bxe2+
              • 3...Kxe2
                • 4.Qd1#
            • 3.Sg4
              • threat
                • 4.Sxh2#
                • 4.Se5#
        • 2.b8Q
          • threat
            • 3.Qe8
              • threat
                • 4.Qh5#
            • 3.Qg8
              • threat
                • 4.Qxg3#
                • 4.Qg4#
            • 3.Qh8
              • threat
                • 4.Qh5#
          • 2...gxh1S
            • 3.Qg8
              • threat
                • 4.Qg4#
              • 3...Sf2
                • 4.Qxg3#
        • 2.b8S
          • threat
            • 3.Sd7
              • threat
                • 4.Se5#
      • 1...gxh1Q
        • 2.b8S
          • threat
            • 3.Sd7
              • threat
                • 4.Se5#
          • 2...gxh2
            • 3.Sd7
              • 3...Qg2
                • 4.Se5#
          • 2...g2
            • 3.Sg4
              • 3...Qxh2
                • 4.Sxh2#
                • 4.Se5#
            • 3.Sd7
              • 3...Qxh2
                • 4.Se5#
      • 1...gxh1S
        • 2.b8Q
          • threat
            • 3.Qg8
              • threat
                • 4.Qg4#
              • 3...Sf2
                • 4.Qxg3#
          • 2...gxh2
            • 3.Qg8
              • threat
                • 4.Qg4#
              • 3...Sf2
                • 4.Qg3#
          • 2...Sf2
            • 3.Qg8
              • threat
                • 4.Qxg3#
              • 3...Sxe4
                • 4.Qg4#
              • 3...gxh2
                • 4.Qg3#
              • 3...Sh1
                • 4.Qg4#
              • 3...Sg4
                • 4.Qxg4#
              • 3...g2
                • 4.Qg3#
          • 2...g2
            • 3.Sg4
              • threat
                • 4.Se5#
                • 4.Qbb3#
            • 3.Qg8
              • threat
                • 4.Qg4#
              • 3...Sf2
                • 4.Qg3#
      • 1...gxh1B
        • 2.Bxg3
          • 2...Bg2
            • 3.Sc2
              • threat
                • 4.Se1#
      • 1...gxh1R
        • 2.e5
          • threat
            • 3.Sc3
              • threat
                • 4.Qe4#
              • 3...Kxe3
                • 4.Qe4#
          • 2...gxh2
            • 3.Sc3
              • 3...Kxe3
                • 4.Qe4#
      • 1...gxh2
        • 2.Rxg1
          • threat
            • 3.Bxe2+
              • 3...Kxe2
                • 4.Qd1#
            • 3.Sg4
              • threat
                • 4.Sxh2#
                • 4.Se5#
          • 2...hxg1S
            • 3.Sg4
              • 3...h2
                • 4.Sxh2#
                • 4.Se5#

FEATURES


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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).