Problem Display
PID: 81727 (3Q4/8/2R1NP2/3N4/8/3k4/8/7K w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Mat Plus, 2007

3Q4/8/2R1NP2/3N4/8/3k4/8/7K

#3

6 + 1


SOLUTION


  • SOUND
  • Tries
    • 1.Kg2?
      • 1...Kd2
        • 2.Sdf4+
          • 2...Ke1
            • 3.Rc1#
          • 2...Ke3
            • 3.Qd3#
            • 3.Qd4#
      • 1...Ke2
        • 2.Sc3+
          • 2...Ke1
            • 3.Qd1#
          • 2...Ke3
            • 3.Qd4#
        • 2.Sdf4+
          • 2...Ke1
            • 3.Rc1#
          • 2...Ke3
            • 3.Qd3#
            • 3.Qd4#
      • 1...Ke4!
    • 1.Sc3+?
      • 1...Ke3
        • 2.Qd4+
          • 2...Kf3
            • 3.Qf4#
      • 1...Kc2!
    • 1.Qb6?
      • threat
        • 2.Qe3#
      • 1...Kd2
        • 2.Qf2+
          • 2...Kd1
            • 3.Se3#
          • 2...Kd3
            • 3.Qe3#
            • 3.Qc2#
        • 2.Qe3+
          • 2...Kd1
            • 3.Rc1#
        • 2.Qb2+
          • 2...Kd1
            • 3.Rc1#
          • 2...Ke1
            • 3.Rc1#
          • 2...Kd3
            • 3.Qc2#
      • 1...Ke2
        • 2.Qe3+
          • 2...Kd1
            • 3.Rc1#
          • 2...Kf1
            • 3.Rc1#
        • 2.Qb2+
          • 2...Kd1
            • 3.Rc1#
          • 2...Ke1
            • 3.Rc1#
          • 2...Kf1
            • 3.Rc1#
          • 2...Kd3
            • 3.Qc2#
          • 2...Kf3
            • 3.Qg2#
      • 1...Ke4!
  • Keys
    • 1.Qb8!
      • 1...Kd2
        • 2.Qb2+
          • 2...Kd1
            • 3.Rc1#
          • 2...Ke1
            • 3.Rc1#
          • 2...Kd3
            • 3.Qc2#
      • 1...Ke2
        • 2.Qb2+
          • 2...Kd1
            • 3.Rc1#
          • 2...Ke1
            • 3.Rc1#
          • 2...Kf1
            • 3.Rc1#
          • 2...Kd3
            • 3.Qc2#
          • 2...Kf3
            • 3.Qg2#
      • 1...Ke4
        • 2.Qf4+
          • 2...Kd3
            • 3.Qe3#
          • 2...Kxd5
            • 3.Rd6#

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).