Problem Display
PID: 171713 (8/K7/8/3NP3/p7/3k4/1Q6/4B3 w - - 0 1)

Antipov, Viacheslav Pavlovich

Shakh-M (Borovich), 1997

8/K7/8/3NP3/p7/3k4/1Q6/4B3

#3

5 + 2


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Qc3+?
      • 1...Ke2
        • 2.Qe3+
          • 2...Kd1
            • 3.Qd2#
          • 2...Kf1
            • 3.Qf2#
      • 1...Ke4!
    • 1.Qd2+?
      • 1...Kc4
        • 2.Sb4
          • threat
            • 3.Qd5#
          • 2...Kb3
            • 3.Qc3#
            • 3.Qa2#
          • 2...Kb5
            • 3.Qd5#
          • 2...Kc5
            • 3.Qd5#
      • 1...Ke4!
    • 1.Qb4?
      • threat
        • 2.Sc3
          • threat
            • 3.Qe4#
          • 2...Kc2
            • 3.Qb1#
          • 2...Ke3
            • 3.Qe4#
      • 1...Kc2
        • 2.Sc3
          • threat
            • 3.Qb1#
          • 2...Kc1
            • 3.Qb1#
          • 2...Kd3
            • 3.Qe4#
      • 1...Ke2!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Qd2+
          • 2...Kc4
            • 3.Qd5#
      • 1...Ke3
        • 2.Qd2+
          • 2...Kf3
            • 3.Qf2#
      • 1...Kc4
        • 2.Qb4+
          • 2...Kd3
            • 3.Qe4#

FEATURES


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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).