Problem Display
PID: 186856 (8/8/2p5/2K3p1/4k3/4NpR1/8/6Q1 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Problem Observer, 2018

8/8/2p5/2K3p1/4k3/4NpR1/8/6Q1

#3

4 + 4


SOLUTION


  • SOUND
  • Sets
    • 1...f2
      • 2.Qxf2
        • threat
          • 3.Qf5#
        • 2...Kd3
          • 3.Qc2#
        • 2...Ke5
          • 3.Qf5#
  • Tries
    • 1.Rg4+?
      • 1...Kd3
        • 2.Qf2
          • 2...Kc3
            • 3.Qc2#
        • 2.Qe1
          • 2...f2
            • 3.Rd4#
      • 1...Ke5!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qd4#
      • 1...Kxe3
        • 2.Rxf3+
          • 2...Ke4
            • 3.Qe2#
      • 1...Kf4
        • 2.Qxf3+
          • 2...Ke5
            • 3.Qf5#
      • 1...Ke5
        • 2.Qd6+
          • 2...Ke4
            • 3.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).