Problem Display
PID: 42965 (8/5p1n/1p6/1N3B2/7Q/1k6/8/5K2 w - - 0 1)

Brown, Theodore Morris

Source?, 0000

8/5p1n/1p6/1N3B2/7Q/1k6/8/5K2

#3

4 + 4


1679 American Chess Nuts 1868

SOLUTION


  • SOUND
  • Sets
    • 1...Ka2
      • 2.Qg3
        • threat
          • 3.Qa3#
        • 2...Ka1
          • 3.Qa3#
        • 2...Kb2
          • 3.Qa3#
      • 2.Qh3
        • threat
          • 3.Qa3#
        • 2...Ka1
          • 3.Qa3#
        • 2...Kb2
          • 3.Qa3#
      • 2.Qa4+
        • 2...Kb2
          • 3.Qa3#
      • 2.Qb4
        • threat
          • 3.Qa3#
          • 3.Qb1#
        • 2...Ka1
          • 3.Qa3#
          • 3.Qb1#
    • 1...Kb2
      • 2.Qa4
        • threat
          • 3.Qa3#
        • 2...Kc1
          • 3.Qc2#
  • Tries
    • 1.Qa4+?
      • 1...Kb2
        • 2.Qa3#
      • 1...Kxa4!
    • 1.Qb4+?
      • 1...Ka2
        • 2.Qa3#
        • 2.Qb1#
      • 1...Kxb4!
    • 1.Qc4+?
      • 1...Kb2
        • 2.Qd3
          • threat
            • 3.Qb1#
            • 3.Qa3#
          • 2...Ka1
            • 3.Qb1#
            • 3.Qa3#
          • 2...Kc1
            • 3.Qc2#
          • 2...Ka2
            • 3.Qb1#
            • 3.Qa3#
        • 2.Qc2+
          • 2...Ka1
            • 3.Qb1#
        • 2.Qc3+
          • 2...Ka2
            • 3.Qa3#
        • 2.Qa4
          • threat
            • 3.Qa3#
          • 2...Kc1
            • 3.Qc2#
      • 1...Kxc4!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Bd3
          • threat
            • 3.Qa3#
          • 2...Ka2
            • 3.Qa3#
          • 2...Kb2
            • 3.Qa3#
          • 2...Ka4
            • 3.Qa3#
      • 1...Ka4
        • 2.Bd3
          • threat
            • 3.Qa3#
          • 2...Kb3
            • 3.Qa3#
          • 2...Ka5
            • 3.Qa3#
      • 1...Kc4
        • 2.Bd3+
          • 2...Kb3
            • 3.Qa3#
          • 2...Kxd3
            • 3.Qe2#
          • 2...Kd5
            • 3.Qd6#

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).