Problem Display
PID: 81744 (8/4K3/1B2N3/3k4/3n4/3Q4/4n3/8 w - - 0 1)

Kostylev, Mikhail Romanovich

Melnichuk, Aleksandr Nikolaevich

Mat Plus, 2008

8/4K3/1B2N3/3k4/3n4/3Q4/4n3/8

#4

4 + 3


SOLUTION


  • SOUND
  • Keys
    • 1.Ba7!
      • threat
        • 2.Sf4+
          • 2...Kc6
            • 3.Qa6+
              • 3...Kc7
                • 4.Sd5#
          • 2...Sxf4
            • 3.Qxd4+
              • 3...Kc6
                • 4.Qd7#
      • 1...Ke5
        • 2.Bb8+
          • 2...Kd5
            • 3.Kd7
              • 3...Sc1
                • 4.Qxd4#
              • 3...Sg1
                • 4.Qxd4#
              • 3...Sc3
                • 4.Qxd4#
              • 3...Sg3
                • 4.Qxd4#
              • 3...Sf4
                • 4.Qxd4#
      • 1...Kc6
        • 2.Qc4+
          • 2...Kb7
            • 3.Qc7+
              • 3...Ka6
                • 4.Qb6#
              • 3...Ka8
                • 4.Qb8#

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).