Problem Display
PID: 226033 (K7/8/2k5/3N4/3p4/3P4/B7/7Q w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Praca, 1999

K7/8/2k5/3N4/3p4/3P4/B7/7Q

#3

5 + 2


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Tries
    • 1.Qh2?
      • 1...Kb5
        • 2.Bc4+
          • 2...Ka4
            • 3.Qa2#
          • 2...Ka5
            • 3.Qa2#
          • 2...Kc5
            • 3.Qc7#
          • 2...Kc6
            • 3.Qc7#
      • 1...Kc5
        • 2.Bc4
          • 2...Kc6
            • 3.Qc7#
      • 1...Kd7!
    • 1.Qh6+?
      • 1...Kb5
        • 2.Ka7
          • 2...Ka4
            • 3.Qa6#
          • 2...Ka5
            • 3.Qa6#
          • 2...Kc5
            • 3.Qb6#
        • 2.Kb7
          • 2...Ka4
            • 3.Qa6#
          • 2...Ka5
            • 3.Qa6#
          • 2...Kc5
            • 3.Qb6#
            • 3.Qc6#
        • 2.Bb3
          • threat
            • 3.Qb6#
          • 2...Ka5
            • 3.Qb6#
          • 2...Kc5
            • 3.Qb6#
        • 2.Bc4+
          • 2...Ka4
            • 3.Qa6#
          • 2...Ka5
            • 3.Qa6#
          • 2...Kc5
            • 3.Qb6#
        • 2.Qb6+
          • 2...Ka4
            • 3.Qb4#
            • 3.Qa6#
      • 1...Kd7!
  • Keys
    • 1.Qe1!
      • 1...Kb5
        • 2.Kb7
          • threat
            • 3.Qb4#
          • 2...Ka4
            • 3.Qb4#
          • 2...Kc5
            • 3.Qb4#
      • 1...Kc5
        • 2.Kb7
          • threat
            • 3.Qb4#
          • 2...Kb5
            • 3.Qb4#
          • 2...Kd6
            • 3.Qe7#
      • 1...Kd6
        • 2.Kb7
          • threat
            • 3.Qe7#
          • 2...Kc5
            • 3.Qb4#
          • 2...Kd7
            • 3.Qe7#
      • 1...Kd7
        • 2.Kb7
          • threat
            • 3.Qe7#
          • 2...Kd6
            • 3.Qe7#
          • 2...Kd8
            • 3.Qe7#

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).