Problem Display
PID: 61798 (6B1/1N1Q4/1KR1p2r/1p3bn1/k4p2/8/PPq1n2r/8 w - - 0 1)

Eichstadt, Heinrich S

Schachzeitung der Berliner Schachgesellschaft, 1848

6B1/1N1Q4/1KR1p2r/1p3bn1/k4p2/8/PPq1n2r/8

#4

7 + 10


SOLUTION


  • SOUND
  • Keys
    • 1.Qd1!
      • threat
        • 2.Rc4+
          • 2...bxc4
            • 3.Sc5+
              • 3...Kb4
                • 4.a3#
            • 3.Qd7+
              • 3...Kb4
                • 4.Qb5#
      • 1...Kb4
        • 2.Qd6+
          • 2...Qc5+
            • 3.Qxc5+
              • 3...Ka4
                • 4.Qa3#
                • 4.Qxb5#
                • 4.b3#
      • 1...Qxd1
        • 2.Rc4+
          • 2...bxc4
            • 3.Sc5+
              • 3...Kb4
                • 4.a3#
      • 1...R2h3
        • 2.Rc4+
          • 2...bxc4
            • 3.Qd7+
              • 3...Kb4
                • 4.Qb5#
      • 1...R6h3
        • 2.Rc4+
          • 2...bxc4
            • 3.Qd7+
              • 3...Kb4
                • 4.Qb5#
      • 1...Rh7
        • 2.Rc4+
          • 2...bxc4
            • 3.Sc5+
              • 3...Kb4
                • 4.a3#
      • 1...Bd3
        • 2.Rc4+
          • 2...Bxc4
            • 3.Sc5+
              • 3...Kb4
                • 4.a3#
            • 3.Qxc2+
              • 3...Kb4
                • 4.a3#
              • 3...Bb3
                • 4.Qxb3#
          • 2...bxc4
            • 3.Sc5+
              • 3...Kb4
                • 4.a3#
      • 1...Be4
        • 2.Rc4+
          • 2...bxc4
            • 3.Sc5+
              • 3...Kb4
                • 4.a3#
      • 1...Sd4
        • 2.Sc5+
          • 2...Kb4
            • 3.Qxd4+
              • 3...Qc4
                • 4.a3#
        • 2.Rc4+
          • 2...bxc4
            • 3.Sc5+
              • 3...Kb4
                • 4.a3#

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).