Problem Display
PID: 132697 (4N3/2BkPP2/2N4n/KPp3p1/7b/2P5/8/8 w - - 0 1)

Foyster, HT

Morning Post, 1910

4N3/2BkPP2/2N4n/KPp3p1/7b/2P5/8/8

#3

8 + 5


1829 The Theory of Pawn Promotion 1912

SOLUTION


  • SOUND
  • Tries
    • 1.Sf6+?
      • 1...Kxc7
        • 2.e8Q
          • threat
            • 3.Qd7#
            • 3.Qb8#
          • 2...Kd6
            • 3.Qd7#
            • 3.Qe5#
            • 3.Qe7#
          • 2...Kb7
            • 3.Qb8#
      • 1...Kc8
        • 2.Kb6
          • threat
            • 3.Sa7#
            • 3.e8Q#
            • 3.e8R#
            • 3.f8Q#
            • 3.f8R#
        • 2.e8Q+
          • 2...Kb7
            • 3.Qb8#
          • 2...Kxc7
            • 3.Qd7#
            • 3.Qb8#
        • 2.f8Q+
          • 2...Kb7
            • 3.Qb8#
          • 2...Kxc7
            • 3.Qb8#
      • 1...Ke6!
    • 1.f8S+?
      • 1...Kc8
        • 2.Ka6
          • threat
            • 3.Sa7#
        • 2.Kb6
          • threat
            • 3.Sa7#
            • 3.Sd6#
        • 2.Sd6+
          • 2...Kxc7
            • 3.e8S#
      • 1...Kxe8!
  • Keys
    • 1.Sd6!
      • threat
        • 2.e8Q+
          • 2...Kxc7
            • 3.Qe7#
            • 3.Qd8#
        • 2.f8S+
          • 2...Kxc7
            • 3.e8S#
      • 1...Ke6
        • 2.f8S+
          • 2...Kd5
            • 3.c4#
          • 2...Kf6
            • 3.e8S#
      • 1...Kxc7
        • 2.e8S+
          • 2...Kd7
            • 3.f8S#
      • 1...Sxf7
        • 2.e8Q+
          • 2...Kxc7
            • 3.Qe7#
      • 1...Sf5
        • 2.e8Q+
          • 2...Kxc7
            • 3.Qd8#
        • 2.f8S+
          • 2...Kxc7
            • 3.e8S#
      • 1...Sg8
        • 2.e8Q+
          • 2...Kxc7
            • 3.Qd8#
        • 2.fxg8Q
          • threat
            • 3.Qc8#
          • 2...Kxc7
            • 3.Qd8#
        • 2.f8Q
          • threat
            • 3.Qc8#
          • 2...Ke6
            • 3.Qf5#
          • 2...Kxc7
            • 3.Qd8#
          • 2...Sxe7
            • 3.Qxe7#
        • 2.f8S+
          • 2...Kxc7
            • 3.e8S#
      • 1...g4
        • 2.f8S+
          • 2...Kxc7
            • 3.e8S#

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).