Problem Display
PID: 191511 (8/8/1R2p3/2kN4/3R4/2p2NP1/3P4/K7 w - - 0 1)

Votruba, Otakar

Deutsche Schachzeitung, 1916

8/8/1R2p3/2kN4/3R4/2p2NP1/3P4/K7

#4

7 + 3


6490 yacpdb 2019

SOLUTION


  • SOUND
  • Keys
    • 1.Ra4!
      • threat
        • 2.d3
          • threat
            • 3.Ra5#
          • 2...exd5
            • 3.Rab4
              • threat
                • 4.R4b5#
                • 4.d4#
      • 1...Kxd5
        • 2.d3
          • threat
            • 3.Ra5#
          • 2...Kc5
            • 3.Rab4
              • threat
                • 4.R4b5#
              • 3...Kd5
                • 4.R4b5#
      • 1...cxd2
        • 2.Sxd2
          • 2...Kxd5
            • 3.Se4
              • 3...Ke5
                • 4.Rb5#
              • 3...e5
                • 4.Rd6#
          • 2...exd5
            • 3.Rab4
              • 3...d4
                • 4.R4b5#
          • 2...e5
            • 3.Se4+
              • 3...Kxd5
                • 4.Rd6#
      • 1...exd5
        • 2.Rab4
          • threat
            • 3.d4#
          • 2...cxd2
            • 3.Sxd2
              • 3...d4
                • 4.R4b5#
          • 2...d4
            • 3.R4b5+
              • 3...Kc4
                • 4.Se5#
            • 3.d3
              • threat
                • 4.R4b5#
              • 3...Kd5
                • 4.R4b5#
      • 1...c2
        • 2.Ra5+
          • 2...Kc4
            • 3.Rb4+
              • 3...Kd3
                • 4.Sf4#

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).