Problem Display
PID: 172580 (8/1kP5/8/1PP5/Q1Kn4/8/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1997

8/1kP5/8/1PP5/Q1Kn4/8/8/8

#3

5 + 2


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Qa8+?
      • 1...Kxa8
        • 2.c8Q+
          • 2...Ka7
            • 3.b6#
      • 1...Kxc7!
    • 1.c8R?
      • threat
        • 2.Qa6#
        • 2.Qa8#
      • 1...Sxb5
        • 2.Qa8#
      • 1...Kxc8!
  • Keys
    • 1.b6!
      • threat
        • 2.Qe8
          • threat
            • 3.c8Q#
          • 2...Ka6
            • 3.Qa8#
        • 2.Qa8+
          • 2...Kxa8
            • 3.c8Q#
      • 1...Kc8
        • 2.Qe8+
          • 2...Kb7
            • 3.c8Q#
      • 1...Sb5
        • 2.Qa8+
          • 2...Kxa8
            • 3.c8Q#
      • 1...Sc2
        • 2.Qc6+
          • 2...Ka6
            • 3.Qa8#
          • 2...Kxc6
            • 3.c8Q#
          • 2...Kc8
            • 3.b7#
        • 2.Qa8+
          • 2...Kxa8
            • 3.c8Q#
      • 1...Sb3
        • 2.Qc6+
          • 2...Ka6
            • 3.Qa8#
          • 2...Kxc6
            • 3.c8Q#
          • 2...Kc8
            • 3.b7#
        • 2.Qa8+
          • 2...Kxa8
            • 3.c8Q#
      • 1...Sf3
        • 2.Qc6+
          • 2...Ka6
            • 3.Qa8#
          • 2...Kxc6
            • 3.c8Q#
          • 2...Kc8
            • 3.b7#
        • 2.Qa8+
          • 2...Kxa8
            • 3.c8Q#
      • 1...Sf5
        • 2.Qc6+
          • 2...Ka6
            • 3.Qa8#
          • 2...Kxc6
            • 3.c8Q#
          • 2...Kc8
            • 3.b7#
        • 2.Qa8+
          • 2...Kxa8
            • 3.c8Q#
      • 1...Sc6
        • 2.Qxc6+
          • 2...Ka6
            • 3.Qa8#
          • 2...Kxc6
            • 3.c8Q#
          • 2...Kc8
            • 3.b7#
      • 1...Se6
        • 2.Qa8+
          • 2...Kxa8
            • 3.c8Q#

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).