Problem Display
PID: 168611 (8/8/8/kp4N1/2p5/2N5/7Q/4K3 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Best Problems, 2000

8/8/8/kp4N1/2p5/2N5/7Q/4K3

#3

4 + 3


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Sd5?
      • threat
        • 2.Qa2#
      • 1...Ka6
        • 2.Qc7
          • threat
            • 3.Sb4#
            • 3.Qb6#
        • 2.Qb8
          • threat
            • 3.Qb6#
            • 3.Qa8#
          • 2...Ka5
            • 3.Qa7#
            • 3.Qa8#
      • 1...b4!
    • 1.Sge4?
      • 1...Kb4
        • 2.Qb2+
          • 2...Ka5
            • 3.Qxb5#
      • 1...Ka6
        • 2.Qc7
          • 2...b4
            • 3.Sc5#
      • 1...b4
        • 2.Qc7+
          • 2...Ka6
            • 3.Sc5#
      • 1...Kb6!
    • 1.Qc7+?
      • 1...Ka6
        • 2.Sd5
          • threat
            • 3.Sb4#
            • 3.Qb6#
        • 2.Sge4
          • 2...b4
            • 3.Sc5#
        • 2.Se6
          • 2...b4
            • 3.Sc5#
      • 1...Kb4!
    • 1.Qb8?
      • threat
        • 2.Qxb5#
      • 1...Ka6
        • 2.Sd5
          • threat
            • 3.Qb6#
            • 3.Qa8#
          • 2...Ka5
            • 3.Qa7#
            • 3.Qa8#
      • 1...Kb4!
  • Keys
    • 1.Se6!
      • 1...Kb4
        • 2.Qb2+
          • 2...Ka5
            • 3.Qxb5#
      • 1...Ka6
        • 2.Qc7
          • 2...b4
            • 3.Sc5#
      • 1...Kb6
        • 2.Qc7+
          • 2...Ka6
            • 3.Sc5#
      • 1...b4
        • 2.Qc7+
          • 2...Ka6
            • 3.Sc5#

FEATURES


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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).