Problem Display
PID: 132760 (8/8/1PkBR3/4R3/8/1P6/8/1K6 w - - 0 1)

Pauly, Wolfgang

Deutsche Schachzeitung, 1906

8/8/1PkBR3/4R3/8/1P6/8/1K6

#4

6 + 1


1829 The Theory of Pawn Promotion 1912

SOLUTION


  • SOUND
  • Keys
    • 1.Re7!
      • threat
        • 2.Bb4
          • 2...Kxb6
            • 3.R5e6+
              • 3...Kb5
                • 4.Rb7#
        • 2.b7
          • threat
            • 3.b8R
              • 3...Kxd6
                • 4.Rb6#
          • 2...Kb6
            • 3.b8Q+
              • 3...Ka6
                • 4.Ra7#
                • 4.Qa7#
                • 4.Qb5#
                • 4.Qb7#
              • 3...Kc6
                • 4.Rc5#
                • 4.Qc7#
          • 2...Kxd6
            • 3.b8Q+
              • 3...Kc6
                • 4.Qc7#
      • 1...Kxb6
        • 2.Bb4
          • threat
            • 3.R5e6+
              • 3...Kb5
                • 4.Rb7#
          • 2...Ka6
            • 3.R5e6+
              • 3...Kb5
                • 4.Rb7#
          • 2...Kc6
            • 3.R5e6+
              • 3...Kb5
                • 4.Rb7#
              • 3...Kd5
                • 4.Rd6#
      • 1...Kxd6
        • 2.b7
          • 2...Kc6
            • 3.b8R
              • 3...Kd6
                • 4.Rb6#

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).