Problem Display
PID: 65984 (K5bB/3Np3/p4pN1/3kP1p1/P3p3/8/4PP2/2Q3b1 w - - 0 1)

Anonymous

The Chess Monthly (Hoffer), 1881

K5bB/3Np3/p4pN1/3kP1p1/P3p3/8/4PP2/2Q3b1

#4

9 + 8


SOLUTION


  • SOUND
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qb3+
          • 2...Kd4
            • 3.e3#
          • 2...Kc6
            • 3.Qb7#
      • 1...Ke6
        • 2.Sdf8+
          • 2...Kf5
            • 3.Qh3+
              • 3...g4
                • 4.Qh5#
          • 2...Kf7
            • 3.e6+
              • 3...Ke8
                • 4.Qc8#
      • 1...Bxf2
        • 2.Sc5
          • threat
            • 3.Sxe7#
          • 2...Kc6
            • 3.Sxe7+
              • 3...Kb6
                • 4.Sd7#
              • 3...Kc7
                • 4.Qa5#
          • 2...Bxc5
            • 3.Qb3+
              • 3...Kd4
                • 4.e3#
              • 3...Kc6
                • 4.Qb7#
          • 2...fxe5
            • 3.Sxe7+
              • 3...Kd6
                • 4.Qxe5#
          • 2...Bd4
            • 3.Sxe7+
              • 3...Kxe5
                • 4.Qg3#
      • 1...fxe5
        • 2.Qxe5+
          • 2...Kc4
            • 3.Sb6+
              • 3...Kb3
                • 4.Qb2#
              • 3...Kb4
                • 4.Qc3#
          • 2...Kc6
            • 3.Sb8+
              • 3...Kb6
                • 4.a5#

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).