Problem Display
PID: 80746 (8/4p3/KQ2p3/8/2k5/5R2/8/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Koster, 1984

8/4p3/KQ2p3/8/2k5/5R2/8/8

#3

3 + 3


SOLUTION


  • SOUND
  • Tries
    • 1.Rd3?
      • threat
        • 2.Qd4#
        • 2.Qb5#
      • 1...e5
        • 2.Qb5#
      • 1...Kxd3!
    • 1.Qd8?
      • 1...Kc5
        • 2.Rc3+
          • 2...Kb4
            • 3.Qa5#
            • 3.Qd4#
      • 1...e5!
    • 1.Qb3+?
      • 1...Kc5
        • 2.Rd3
          • threat
            • 3.Qc3#
            • 3.Qb5#
          • 2...Kc6
            • 3.Qc2#
            • 3.Qc4#
            • 3.Qc3#
            • 3.Qb6#
      • 1...Kd4!
    • 1.Qc6+?
      • 1...Kb4
        • 2.Qb5#
      • 1...Kd4!
  • Keys
    • 1.Kb7!
      • threat
        • 2.Kc6
          • 2...e5
            • 3.Qc5#
      • 1...Kd5
        • 2.Rf4
          • threat
            • 3.Qd4#
          • 2...Ke5
            • 3.Qd4#
          • 2...e5
            • 3.Qc6#
      • 1...e5
        • 2.Kc6
          • threat
            • 3.Qc5#

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).