Problem Display
PID: 273383 (7Q/P2NP1p1/5pR1/1N1k2n1/8/P6P/5B2/5K2 w - - 0 1)

Janevski, Zivko

diagrammes, 1978

7Q/P2NP1p1/5pR1/1N1k2n1/8/P6P/5B2/5K2

#3

10 + 4


SOLUTION


  • SOUND
  • Tries
    • 1.e8Q?
      • threat
        • 2.Sb6#
      • 1...Kc4
        • 2.Qe2+
          • 2...Kb3
            • 3.Sc5#
          • 2...Kd5
            • 3.Qa8#
            • 3.a8Q#
            • 3.a8B#
      • 1...Kc6
        • 2.Se5+
          • 2...Kd5
            • 3.a8Q#
            • 3.a8B#
          • 2...Kb7
            • 3.Qc6#
            • 3.Qc8#
            • 3.a8Q#
        • 2.Sb6+
          • 2...Kb7
            • 3.Qc8#
            • 3.a8Q#
        • 2.Sxf6+
          • 2...Kb7
            • 3.Qc8#
            • 3.a8Q#
        • 2.a4
          • threat
            • 3.a8Q#
            • 3.a8B#
          • 2...Kd5
            • 3.Sb6#
          • 2...Kb7
            • 3.Qc8#
            • 3.a8Q#
        • 2.a8Q+
          • 2...Kxb5
            • 3.Se5#
            • 3.Sb6#
            • 3.Qe2#
      • 1...Se6!
  • Keys
    • 1.Qh5!
      • 1...Kc4
        • 2.Qe2+
          • 2...Kb3
            • 3.Sc5#
          • 2...Kd5
            • 3.a8Q#
            • 3.a8B#
      • 1...Ke4
        • 2.Qg4+
          • 2...Kd3
            • 3.Qe2#
          • 2...Kd5
            • 3.a8Q#
            • 3.a8B#
      • 1...Kc6
        • 2.a8Q+
          • 2...Kxb5
            • 3.Qe2#
          • 2...Kxd7
            • 3.e8Q#
      • 1...Ke6
        • 2.e8Q+
          • 2...Kd5
            • 3.Sb6#
          • 2...Kf5
            • 3.Qg4#
      • 1...f5
        • 2.Qe2
          • threat
            • 3.Sc3#
            • 3.Sc7#
            • 3.Sb6#
            • 3.Rd6#
            • 3.Qd3#
            • 3.a8Q#
            • 3.a8B#

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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).