Problem Display
PID: 255701 (8/1N6/1k3K2/3Q4/8/1P6/8/8 w - - 0 1)

Kuligin, Nikolai Volodimirovich

Buletin Problemistic, 1995

8/1N6/1k3K2/3Q4/8/1P6/8/8

#3

4 + 1


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Tries
    • 1.Sd6?
      • 1...Ka6
        • 2.Qc6+
          • 2...Ka5
            • 3.Qb5#
          • 2...Ka7
            • 3.Qb7#
        • 2.Qb7+
          • 2...Ka5
            • 3.Sc4#
            • 3.Qb5#
        • 2.Qb5+
          • 2...Ka7
            • 3.Qb7#
        • 2.b4
          • threat
            • 3.Qb7#
            • 3.Qa5#
          • 2...Kb6
            • 3.Qb7#
          • 2...Ka7
            • 3.Qb7#
      • 1...Kc7!
    • 1.Sd8?
      • 1...Ka6
        • 2.Qb7+
          • 2...Ka5
            • 3.Sc6#
        • 2.b4
          • threat
            • 3.Qb7#
            • 3.Qa5#
          • 2...Kb6
            • 3.Qb7#
            • 3.Qa5#
          • 2...Ka7
            • 3.Qb7#
      • 1...Kc7!
    • 1.Qc6+?
      • 1...Ka7
        • 2.Sa5
          • 2...Kb8
            • 3.Qb7#
        • 2.Sc5
          • 2...Kb8
            • 3.Qb7#
        • 2.Sd6
          • 2...Kb8
            • 3.Qb7#
        • 2.Sd8
          • 2...Kb8
            • 3.Qb7#
      • 1...Kxc6!
    • 1.b4?
      • 1...Ka6
        • 2.Sa5
          • threat
            • 3.Qb7#
          • 2...Kb6
            • 3.Qb7#
          • 2...Ka7
            • 3.Qb7#
        • 2.Sd6
          • threat
            • 3.Qb7#
            • 3.Qa5#
          • 2...Kb6
            • 3.Qb7#
          • 2...Ka7
            • 3.Qb7#
        • 2.Sd8
          • threat
            • 3.Qb7#
            • 3.Qa5#
          • 2...Kb6
            • 3.Qb7#
            • 3.Qa5#
          • 2...Ka7
            • 3.Qb7#
      • 1...Ka7
        • 2.Sa5
          • threat
            • 3.Qb7#
          • 2...Ka6
            • 3.Qb7#
          • 2...Kb6
            • 3.Qb7#
          • 2...Kb8
            • 3.Qb7#
        • 2.Sc5
          • threat
            • 3.Qb7#
          • 2...Kb6
            • 3.Qb7#
          • 2...Kb8
            • 3.Qb7#
        • 2.Sd6
          • threat
            • 3.Qb7#
          • 2...Ka6
            • 3.Qb7#
            • 3.Qa5#
          • 2...Kb6
            • 3.Qb7#
          • 2...Kb8
            • 3.Qb7#
        • 2.Sd8
          • threat
            • 3.Qb7#
          • 2...Ka6
            • 3.Qb7#
            • 3.Qa5#
          • 2...Kb6
            • 3.Qb7#
            • 3.Qa5#
          • 2...Kb8
            • 3.Qb7#
      • 1...Kc7!
  • Keys
    • 1.Sa5!
      • 1...Ka6
        • 2.b4
          • threat
            • 3.Qb7#
          • 2...Kb6
            • 3.Qb7#
          • 2...Ka7
            • 3.Qb7#
      • 1...Kc7
        • 2.Qc6+
          • 2...Kb8
            • 3.Qb7#
          • 2...Kd8
            • 3.Sb7#

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).