Problem Display
PID: 182632 (3Q4/4B3/4k3/8/2N5/8/4K3/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Problem Observer, 2015

3Q4/4B3/4k3/8/2N5/8/4K3/8

#3

4 + 1


SOLUTION


  • SOUND
  • Tries
    • 1.Se3?
      • 1...Ke5
        • 2.Bg5
          • threat
            • 3.Qd5#
          • 2...Ke4
            • 3.Qd5#
          • 2...Ke6
            • 3.Qe7#
            • 3.Qd5#
        • 2.Qd5+
          • 2...Kf4
            • 3.Bd6#
      • 1...Kf7!
    • 1.Qc7?
      • 1...Kd5
        • 2.Qd6+
          • 2...Kxc4
            • 3.Qd3#
          • 2...Ke4
            • 3.Qe5#
      • 1...Kf5
        • 2.Qc6
          • 2...Kf4
            • 3.Qf3#
          • 2...Kg4
            • 3.Qf3#
      • 1...Kf7!
    • 1.Qd6+?
      • 1...Kf5
        • 2.Qc6
          • 2...Kf4
            • 3.Qf3#
          • 2...Kg4
            • 3.Qf3#
        • 2.Qf6+
          • 2...Ke4
            • 3.Qe5#
          • 2...Kg4
            • 3.Qf3#
      • 1...Kf7!
  • Keys
    • 1.Qe8!
      • 1...Kd5
        • 2.Qg6
          • 2...Kxc4
            • 3.Qd3#
          • 2...Kd4
            • 3.Qd3#
      • 1...Kf5
        • 2.Qc6
          • 2...Kf4
            • 3.Qf3#
          • 2...Kg4
            • 3.Qf3#

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).