Problem Display
PID: 236818 (R7/2r5/1p6/1Np5/P1k5/5P2/2P5/4RK2 w - - 0 1)

Jahn, Gunther

Comm., Main-Post, 1976

R7/2r5/1p6/1Np5/P1k5/5P2/2P5/4RK2

#5

7 + 4


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Keys
    • 1.Rc8!
      • threat
        • 2.Re4+
          • 2...Kd5
            • 3.c4+
              • 3...Kc6
                • 4.Rxc7#
      • 1...Rxc8
        • 2.Re4+
          • 2...Kd5
            • 3.c4+
              • 3...Kc6
                • 4.Re7
                  • 4...Rc7
                    • 5.Rxc7#
                  • 4...Ra8
                    • 5.Rc7#
                  • 4...Rb8
                    • 5.Rc7#
                  • 4...Rd8
                    • 5.Rc7#
                  • 4...Re8
                    • 5.Rc7#
                  • 4...Rf8
                    • 5.Rc7#
                  • 4...Rg8
                    • 5.Rc7#
                  • 4...Rh8
                    • 5.Rc7#
      • 1...Re7
        • 2.Rxe7
          • threat
            • 3.Re4+
              • 3...Kd5
                • 4.c4#
          • 2...Kb4
            • 3.Re4+
              • 3...c4
                • 4.Rexc4+
                  • 4...Ka5
                    • 5.Ra8#

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).