Problem Display
PID: 215061 (1n4rr/b1N5/1kpN1B1p/2p2B2/6R1/P7/1n1Qp2K/1q3b2 w - - 0 1)

Nielsen, Vilhelm

Nordiske Skakproblemer (Arnell & Sorensen), 1879

1n4rr/b1N5/1kpN1B1p/2p2B2/6R1/P7/1n1Qp2K/1q3b2

#4

8 + 12


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Bd8!
      • threat
        • 2.Sd5+
          • 2...Ka6
            • 3.Bc8#
            • 3.Qa5#
        • 2.Sa8+
          • 2...Ka6
            • 3.Bc8#
            • 3.Qa5#
        • 2.Sce8+
          • 2...Ka6
            • 3.Bc8#
            • 3.Qa5#
        • 2.Rb4+
          • 2...Ka5
            • 3.Sb7#
          • 2...cxb4
            • 3.Qxb4#
        • 2.Bc8
          • threat
            • 3.Sd5#
            • 3.Sa8#
            • 3.Sce8#
          • 2...c4
            • 3.Qb4#
      • 1...Rxd8
        • 2.Ra4
          • threat
            • 3.Sa8#
            • 3.Qa5#
          • 2...Kxc7
            • 3.Rxa7+
              • 3...Kb6
                • 4.Qa5#
          • 2...Rxd6
            • 3.Qa5+
              • 3...Kb7
                • 4.Qxa7#
          • 2...Sxa4
            • 3.Qa5+
              • 3...Kxa5
                • 4.Sc4#
      • 1...Sc4
        • 2.Sd5+
          • 2...Ka6
            • 3.Bc8+
              • 3...Qb7
                • 4.Bxb7#
        • 2.Sa8+
          • 2...Ka6
            • 3.Bc8+
              • 3...Qb7
                • 4.Bxb7#
        • 2.Sce8+
          • 2...Ka6
            • 3.Bc8+
              • 3...Qb7
                • 4.Bxb7#
        • 2.Bc8
          • threat
            • 3.Sxc4#
            • 3.Sd5#
            • 3.Sa8#
            • 3.Sce8#
          • 2...Sxd6
            • 3.Sd5+
              • 3...Kb5
                • 4.Sc3#
                • 4.Qa5#
                • 4.a4#
            • 3.Sa8+
              • 3...Kb5
                • 4.Qa5#
                • 4.a4#
            • 3.Se8+
              • 3...Kb5
                • 4.Sxd6#
                • 4.Qa5#
                • 4.a4#

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).