Problem Display
PID: 269907 (8/1pB2K2/1pp1P3/Nbbk1P2/B1Rp2pP/3Ppp2/P3n1N1/nQ6 w - - 0 1)

Dowd, Steven B

Prentos, Kostas

Tehtavaniekka, 2021

8/1pB2K2/1pp1P3/Nbbk1P2/B1Rp2pP/3Ppp2/P3n1N1/nQ6

#4

12 + 12


SOLUTION


  • SOUND
  • Keys
    • 1.Qg1!
      • threat
        • 2.Qh2
          • threat
            • 3.Qe5#
          • 2...g3
            • 3.Qxg3
              • threat
                • 4.Qe5#
                • 4.Qxf3#
              • 3...Sxg3
                • 4.Sf4#
              • 3...Bd6
                • 4.Qxd6#
      • 1...Bd6
        • 2.Qxe3
          • threat
            • 3.Qe4#
          • 2...Bxc4
            • 3.dxc4+
              • 3...Kc5
                • 4.Qa3#
          • 2...Bxc7
            • 3.Qe4+
              • 3...Kd6
                • 4.Sxb7#
          • 2...dxe3
            • 3.Sxe3+
              • 3...Ke5
                • 4.Re4#
      • 1...g3
        • 2.Qf1
          • threat
            • 3.Qxf3#
          • 2...Bd6
            • 3.Qxf3+
              • 3...Ke5
                • 4.Qe4#
          • 2...f2
            • 3.Sxe3+
              • 3...dxe3
                • 4.Qg2#

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).