Problem Display
PID: 248595 (3b2K1/3ppN2/4pk2/4N1R1/8/B1p5/8/3q4 w - - 0 1)

Rautanen, Aleksis Richard Rurik

Helsingin Sanomat, 1961

3b2K1/3ppN2/4pk2/4N1R1/8/B1p5/8/3q4

#4

5 + 7


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Keys
    • 1.Kf8!
      • threat
        • 2.Bb4
          • threat
            • 3.Bxc3
              • threat
                • 4.Sg4#
                • 4.Sxd7#
          • 2...Qd4
            • 3.Bxc3
              • threat
                • 4.Sg4#
                • 4.Sxd7#
              • 3...Qxe5
                • 4.Bxe5#
          • 2...c2
            • 3.Bd2
              • threat
                • 4.Sxd7#
              • 3...Qxd2
                • 4.Sg4#
              • 3...d5
                • 4.Sd7#
              • 3...d6
                • 4.Sd7#
            • 3.Bc3
              • threat
                • 4.Sg4#
                • 4.Sxd7#
            • 3.Bd6
              • threat
                • 4.Sxd7#
              • 3...Qxd6
                • 4.Sg4#
        • 2.Bd6
          • threat
            • 3.Sxd7#
          • 2...Qa4
            • 3.Sg4+
              • 3...Qxg4
                • 4.Be5#
            • 3.Sxd7+
              • 3...Qxd7
                • 4.Be5#
      • 1...Qa4
        • 2.Bb4
          • threat
            • 3.Sg4#
          • 2...Qd1
            • 3.Bxc3
              • threat
                • 4.Sg4#
                • 4.Sxd7#
      • 1...Qd4
        • 2.Bd6
          • threat
            • 3.Sxd7#
          • 2...Qa4
            • 3.Sg4+
              • 3...Qxg4
                • 4.Be5#
            • 3.Sxd7+
              • 3...Qxd7
                • 4.Be5#

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).