Problem Display
PID: 19870 (8/8/b4p2/1p2pp2/1Q4pp/1PB1P3/P1kNK1R1/7r w - - 0 1)

Orlimont, PA (= Ernst Krieger)

Deutsches Wochenschach, 1904

8/8/b4p2/1p2pp2/1Q4pp/1PB1P3/P1kNK1R1/7r

#4

8 + 9


SOLUTION


  • SOUND
  • Keys
    • 1.Ba1!
      • threat
        • 2.Qc3#
        • 2.Qc5#
      • 1...Rxa1
        • 2.Sb1
          • threat
            • 3.Qd2+
              • 3...Kxb1
                • 4.Rg1#
            • 3.Rg1
              • threat
                • 4.Qd2#
                • 4.Qc3#
              • 3...Kb2
                • 4.Qd2#
          • 2...Kxb1
            • 3.Kf1
              • threat
                • 4.Qe1#
              • 3...Kc1
                • 4.Qe1#
          • 2...Kc1
            • 3.Rg1+
              • 3...Kb2
                • 4.Qd2#
              • 3...Kc2
                • 4.Qd2#
                • 4.Qc3#
            • 3.Qd2+
              • 3...Kxb1
                • 4.Rg1#
            • 3.Kf1
              • threat
                • 4.Qe1#
              • 3...Kxb1
                • 4.Qe1#
              • 3...Kd1
                • 4.Qe1#
                • 4.Qd2#
          • 2...Kb2
            • 3.Kf1+
              • 3...Kxb1
                • 4.Qe1#
              • 3...Kc1
                • 4.Qe1#
            • 3.Kd3+
              • 3...Kxb1
                • 4.Qe1#
              • 3...Kc1
                • 4.Qe1#
            • 3.Qd2+
              • 3...Kxb1
                • 4.Rg1#
          • 2...Rxa2
            • 3.Rg1
              • threat
                • 4.Qc3#
              • 3...Kb2
                • 4.Qc3#

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).