Problem Display
PID: 132197 (4R2K/8/1p1BB3/8/2Rpkp2/2pr1rp1/2bppbp1/3qn3 w - - 0 1)

Zagoruyko, Leonid Ivanovich

1st Prize, Shakhmaty v SSSR, 1966

4R2K/8/1p1BB3/8/2Rpkp2/2pr1rp1/2bppbp1/3qn3

#5

5 + 15


56 The Problemist 2008

SOLUTION


  • SOUND
  • Keys
    • 1.Bc7!
      • threat
        • 2.Bg8+
          • 2...Kf5
            • 3.Re5+
              • 3...Kg4
                • 4.Be6+
                  • 4...Kh4
                    • 5.Bd8#
      • 1...Rde3
        • 2.Rd8
          • threat
            • 3.Rcxd4#
            • 3.Rdxd4#
          • 2...Rd3
            • 3.Rd5
              • threat
                • 4.Re5#
              • 3...Rfe3
                • 4.Rf5
                  • threat
                    • 5.Rxf4#
                  • 4...Kf3
                    • 5.Rxf4#
                  • 4...Rf3
                    • 5.Re5#
                  • 4...f3
                    • 5.Rf4#
      • 1...Rfe3
        • 2.Rf8
          • threat
            • 3.Rxf4#
          • 2...Rf3
            • 3.Rf5
              • threat
                • 4.Re5#
              • 3...Rde3
                • 4.Rd5
                  • threat
                    • 5.Rcxd4#
                    • 5.Rdxd4#
                  • 4...Kd3
                    • 5.Rcxd4#
                    • 5.Rdxd4#
                  • 4...Rd3
                    • 5.Re5#
      • 1...Bb3
        • 2.Bg8+
          • 2...Kf5
            • 3.Re5+
              • 3...Kg4
                • 4.Be6+
                  • 4...Kh4
                    • 5.Bd8#
              • 3...Kf6
                • 4.Rc6+
                  • 4...Be6
                    • 5.Rcxe6#
              • 3...Kg6
                • 4.Rc6+
                  • 4...Be6
                    • 5.Rcxe6#
      • 1...Ba4
        • 2.Bd7+
          • 2...Kd5
            • 3.Re5+
              • 3...Kxc4
                • 4.Be6+
                  • 4...Kb4
                    • 5.Bd6#

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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).