Problem Display
PID: 269743 (8/4K3/2P1Pp2/BP5P/3p1pN1/3k4/1Q6/8 w - - 0 1)

Petrasinovic, Petrasin

Problem Forum, 2011

8/4K3/2P1Pp2/BP5P/3p1pN1/3k4/1Q6/8

#4

8 + 4


SOLUTION


  • SOUND
  • Keys
    • 1.Be1!
      • 1...Kc4
        • 2.Kd6
          • threat
            • 3.Sf2
              • threat
                • 4.Qb4#
          • 2...Kd3
            • 3.Kd5
              • threat
                • 4.Qd2#
      • 1...Ke4
        • 2.Qe2+
          • 2...Kd5
            • 3.Bb4
              • threat
                • 4.Sxf6#
              • 3...d3
                • 4.Qxd3#
              • 3...f5
                • 4.Sf6#
          • 2...Kf5
            • 3.Bh4
              • threat
                • 4.Sh6#
              • 3...f3
                • 4.Qxf3#
      • 1...f3
        • 2.Sf2+
          • 2...Kc4
            • 3.Kd6
              • threat
                • 4.Qb4#
      • 1...f5
        • 2.Se5+
          • 2...Ke3
            • 3.Bf2+
              • 3...Ke4
                • 4.Qxd4#
          • 2...Ke4
            • 3.Bf2
              • threat
                • 4.Qxd4#
              • 3...Kd5
                • 4.Qxd4#
              • 3...Kxe5
                • 4.Qxd4#
              • 3...d3
                • 4.Qd4#

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).