Problem Display
PID: 228612 (8/8/8/3B2Q1/5p2/4k3/8/2K5 w - - 0 1)

Loquin, Paul

La Strategie, 1872

8/8/8/3B2Q1/5p2/4k3/8/2K5

#3

3 + 2


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Tries
    • 1.Kd1?
      • 1...Kf2
        • 2.Qg2+
          • 2...Ke3
            • 3.Qd2#
      • 1...Kd3
        • 2.Qxf4
          • 2...Kc3
            • 3.Qd2#
      • 1...Kd4!
    • 1.Qxf4+?
      • 1...Ke2
        • 2.Bc4+
          • 2...Ke1
            • 3.Qd2#
            • 3.Qe3#
            • 3.Qg3#
            • 3.Qf1#
            • 3.Qh4#
        • 2.Qg3
          • 2...Kf1
            • 3.Bc4#
      • 1...Kxf4!
    • 1.Qg2?
      • threat
        • 2.Qd2#
      • 1...Kd3
        • 2.Qd2#
      • 1...Kd4!
    • 1.Qe5+?
      • 1...Kd3
        • 2.Qb2
          • threat
            • 3.Qd2#
          • 2...Ke3
            • 3.Qd2#
        • 2.Qe4+
          • 2...Kc3
            • 3.Qc4#
      • 1...Kf2!
  • Keys
    • 1.Qg1+!
      • 1...Ke2
        • 2.Kc2
          • 2...f3
            • 3.Bc4#
      • 1...Kd3
        • 2.Qf2
          • threat
            • 3.Qd2#
          • 2...Kc3
            • 3.Qd2#
        • 2.Qd1+
          • 2...Kc3
            • 3.Qd2#
          • 2...Ke3
            • 3.Qd2#

FEATURES


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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).