Problem Display
PID: 228708 (3k4/1p3K2/8/2pp1p1p/8/R5B1/qb5Q/r7 w - - 0 1)

Kornin, Zalmen

StrateGems, 2020

3k4/1p3K2/8/2pp1p1p/8/R5B1/qb5Q/r7

#5

4 + 9


SOLUTION


  • SOUND
  • Keys
    • 1.Bc7+!
      • 1...Kc8
        • 2.Qd6
          • threat
            • 3.Qd8#
          • 2...d4+
            • 3.Rxa2
              • threat
                • 4.Qd8#
              • 3...b5
                • 4.Bb6
                  • threat
                    • 5.Qc7#
                  • 4...Kb7
                    • 5.Qc7#
                • 4.Bb8
                  • threat
                    • 5.Qc7#
                  • 4...Kb7
                    • 5.Qc7#
                • 4.Bd8
                  • threat
                    • 5.Qc7#
                  • 4...Kb7
                    • 5.Qc7#
              • 3...b6
                • 4.Bxb6
                  • threat
                    • 5.Qc7#
                  • 4...Kb7
                    • 5.Qc7#
                • 4.Bb8
                  • threat
                    • 5.Qc7#
                  • 4...Kb7
                    • 5.Qc7#
                • 4.Bd8
                  • threat
                    • 5.Qc7#
                  • 4...Kb7
                    • 5.Qc7#
          • 2...b5
            • 3.Bb6
              • threat
                • 4.Qc7#
              • 3...d4+
                • 4.Rxa2
                  • threat
                    • 5.Qc7#
                  • 4...Kb7
                    • 5.Qc7#
              • 3...Be5
                • 4.Qc6+
                  • 4...Kb8
                    • 5.Ba7#
                    • 5.Qa8#
                  • 4...Bc7
                    • 5.Qxc7#
          • 2...b6
            • 3.Bxb6
              • threat
                • 4.Qc7#
              • 3...d4+
                • 4.Rxa2
                  • threat
                    • 5.Qc7#
                  • 4...Kb7
                    • 5.Qc7#
              • 3...Be5
                • 4.Qc6+
                  • 4...Kb8
                    • 5.Ba7#
                    • 5.Qa8#
                  • 4...Bc7
                    • 5.Qxc7#
          • 2...Bf6
            • 3.Ra8+
              • 3...Qxa8
                • 4.Bb6
                  • threat
                    • 5.Qc7#
                  • 4...Qb8
                    • 5.Qe6#
                  • 4...Be5
                    • 5.Qd8#
                  • 4...Bd8
                    • 5.Qxd8#

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).