Problem Display
PID: 117460 (3K4/Q7/3k4/2N5/8/2p2p2/2B5/8 w - - 0 1)

Lukashev, Viktor Sergeevich

Amirov MT, 2000

3K4/Q7/3k4/2N5/8/2p2p2/2B5/8

#3

4 + 3


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Tries
    • 1.Sd7?
      • threat
        • 2.Bb3
          • threat
            • 3.Qc5#
            • 3.Qb6#
            • 3.Qa6#
            • 3.Qc7#
          • 2...Kc6
            • 3.Qb6#
            • 3.Qa6#
        • 2.Qc5+
          • 2...Ke6
            • 3.Bb3#
      • 1...Kd5
        • 2.Qc5+
          • 2...Ke6
            • 3.Bb3#
      • 1...Kc6
        • 2.Bb3
          • threat
            • 3.Qb6#
            • 3.Qa6#
          • 2...Kb5
            • 3.Qb6#
            • 3.Qa4#
          • 2...Kd6
            • 3.Qc5#
            • 3.Qb6#
            • 3.Qa6#
            • 3.Qc7#
      • 1...Ke6!
    • 1.Bb3?
      • threat
        • 2.Qc7#
      • 1...Kc6
        • 2.Sa4
          • threat
            • 3.Qb6#
            • 3.Qa6#
            • 3.Qd7#
          • 2...Kb5
            • 3.Qb6#
          • 2...Kd6
            • 3.Qc5#
            • 3.Qc7#
        • 2.Sd7
          • threat
            • 3.Qb6#
            • 3.Qa6#
          • 2...Kb5
            • 3.Qb6#
            • 3.Qa4#
          • 2...Kd6
            • 3.Qc5#
            • 3.Qb6#
            • 3.Qa6#
            • 3.Qc7#
        • 2.Bc4
          • threat
            • 3.Qc7#
          • 2...Kd6
            • 3.Qc7#
      • 1...Ke5!
  • Keys
    • 1.Qa5!
      • threat
        • 2.Sb7+
          • 2...Kc6
            • 3.Be4#
          • 2...Ke6
            • 3.Qf5#
      • 1...Kd5
        • 2.Sb7+
          • 2...Kc4
            • 3.Qc5#
          • 2...Kd4
            • 3.Qc5#
          • 2...Kc6
            • 3.Be4#
          • 2...Ke6
            • 3.Qf5#
      • 1...Ke5
        • 2.Se4+
          • 2...Kd4
            • 3.Qc5#
          • 2...Kf4
            • 3.Qg5#
          • 2...Ke6
            • 3.Bb3#
      • 1...Kc6
        • 2.Be4+
          • 2...Kd6
            • 3.Qc7#

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).