Problem Display
PID: 63920 (4N3/3NBk1p/8/p4p1P/5p2/5P2/K7/1Q6 w - - 0 1)

Romeyn, John C

Source?, 0000

4N3/3NBk1p/8/p4p1P/5p2/5P2/K7/1Q6

#3

7 + 5


1679 American Chess Nuts 1868

SOLUTION


  • SOUND
  • Sets
    • 1...Kg8
      • 2.Qb3+
        • 2...Kh8
          • 3.Bf6#
  • Tries
    • 1.Bg5?
      • threat
        • 2.Qxf5+
          • 2...Kxe8
            • 3.Qe6#
          • 2...Kg8
            • 3.Qf8#
        • 2.Qb3+
          • 2...Kxe8
            • 3.Qe6#
      • 1...Kxe8
        • 2.Qxf5
          • threat
            • 3.Qe6#
      • 1...Kg8
        • 2.Qb3+
          • 2...Kh8
            • 3.Bf6#
      • 1...a4
        • 2.Qxf5+
          • 2...Kxe8
            • 3.Qe6#
          • 2...Kg8
            • 3.Qf8#
      • 1...h6
        • 2.Qb3+
          • 2...Kxe8
            • 3.Qe6#
      • 1...Ke6!
    • 1.Qxf5+?
      • 1...Kxe8
        • 2.Bh4
          • threat
            • 3.Qe6#
        • 2.Bg5
          • threat
            • 3.Qe6#
        • 2.Qe6
          • threat
            • 3.Sf6#
            • 3.Bh4#
            • 3.Bg5#
            • 3.Bf6#
      • 1...Kxe7!
    • 1.Qb3+?
      • 1...Kxe8
        • 2.Qe6
          • threat
            • 3.Sf6#
            • 3.Bh4#
            • 3.Bg5#
            • 3.Bf6#
      • 1...Kxe7!
  • Keys
    • 1.Bh4!
      • threat
        • 2.Qxf5+
          • 2...Kxe8
            • 3.Qe6#
          • 2...Kg8
            • 3.Qf8#
        • 2.Qb3+
          • 2...Kxe8
            • 3.Qe6#
      • 1...Ke6
        • 2.Qxf5+
          • 2...Kxf5
            • 3.Sg7#
      • 1...Kxe8
        • 2.Qxf5
          • threat
            • 3.Qe6#
      • 1...Kg8
        • 2.Qb3+
          • 2...Kh8
            • 3.Bf6#
      • 1...a4
        • 2.Qxf5+
          • 2...Kxe8
            • 3.Qe6#
          • 2...Kg8
            • 3.Qf8#
      • 1...h6
        • 2.Qb3+
          • 2...Kxe8
            • 3.Qe6#

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).