Problem Display
PID: 128745 (Q7/5N2/8/8/1K1k1P2/6p1/1P4N1/8 w - - 0 1)

Livshits, Eduard Yakovlevich

Orlov, Evgeny Serginovich

Sachove umeni (Ceskoslovensky sach), 1961

Q7/5N2/8/8/1K1k1P2/6p1/1P4N1/8

#3

6 + 2


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Tries
    • 1.Kb3?
      • 1...Kc5
        • 2.Qa6
          • 2...Kd4
            • 3.Qc4#
          • 2...Kd5
            • 3.Qc4#
      • 1...Kd3!
    • 1.Se1?
      • threat
        • 2.Qf3
          • 2...g2
            • 3.Sc2#
            • 3.Qd3#
      • 1...g2
        • 2.Qf3
          • threat
            • 3.Sc2#
            • 3.Qd3#
      • 1...Ke3!
    • 1.Qa6?
      • threat
        • 2.Qc4#
      • 1...Kd5
        • 2.Qc4#
      • 1...Ke4!
    • 1.Qc8?
      • threat
        • 2.Qc4#
      • 1...Ke4
        • 2.Qc2+
          • 2...Kf3
            • 3.Se5#
          • 2...Kd4
            • 3.Qc4#
          • 2...Kd5
            • 3.Qc4#
      • 1...Kd3!
    • 1.Qe8?
      • threat
        • 2.Qd7+
          • 2...Ke4
            • 3.Sg5#
        • 2.Qe2
          • 2...Kd5
            • 3.Qc4#
      • 1...Kd5
        • 2.Qd7+
          • 2...Ke4
            • 3.Sg5#
      • 1...Kd3!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Sg5
          • threat
            • 3.Qd1#
            • 3.Qd7#
          • 2...Kd3
            • 3.Qd1#
          • 2...Kd5
            • 3.Qd7#
        • 2.Qd1+
          • 2...Ke4
            • 3.Sd6#
        • 2.Qc2
          • 2...Kd5
            • 3.Qc4#
        • 2.Qd7+
          • 2...Ke4
            • 3.Sg5#
      • 1...Kd3
        • 2.Qd1+
          • 2...Ke4
            • 3.Sd6#
      • 1...Ke4
        • 2.Qc2+
          • 2...Kf3
            • 3.Se5#
          • 2...Kd4
            • 3.Qc4#
          • 2...Kd5
            • 3.Qc4#
      • 1...Kd5
        • 2.Qd7+
          • 2...Ke4
            • 3.Sg5#

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).