Problem Display
PID: 229986 (kb6/p7/K4N2/8/8/8/R7/8 w - - 0 1)

Olszewski, KE

Illustrierte Beobachter, 1934

kb6/p7/K4N2/8/8/8/R7/8

#4

3 + 3


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Keys
    • 1.Rg2!
      • threat
        • 2.Sd5
          • 2...Bh2
            • 3.Rg8+
              • 3...Bb8
                • 4.Sc7#
            • 3.Rxh2
              • 3...Kb8
                • 4.Rh8#
          • 2...Bg3
            • 3.Rxg3
              • 3...Kb8
                • 4.Rg8#
          • 2...Bf4
            • 3.Rg8+
              • 3...Bb8
                • 4.Sc7#
          • 2...Be5
            • 3.Rg8+
              • 3...Bb8
                • 4.Sc7#
          • 2...Bd6
            • 3.Rg8+
              • 3...Bb8
                • 4.Sc7#
              • 3...Bf8
                • 4.Rxf8#
          • 2...Bc7
            • 3.Rg8+
              • 3...Bb8
                • 4.Sc7#
              • 3...Bd8
                • 4.Rxd8#
      • 1...Bh2
        • 2.Rg8+
          • 2...Bb8
            • 3.Se8
              • threat
                • 4.Sc7#
              • 3...Bc7
                • 4.Sxc7#
        • 2.Rxh2
          • 2...Kb8
            • 3.Rc2
              • 3...Ka8
                • 4.Rc8#
      • 1...Bg3
        • 2.Rxg3
          • 2...Kb8
            • 3.Rc3
              • 3...Ka8
                • 4.Rc8#
      • 1...Bf4
        • 2.Rg8+
          • 2...Bb8
            • 3.Se8
              • threat
                • 4.Sc7#
              • 3...Bc7
                • 4.Sxc7#
      • 1...Be5
        • 2.Rg8+
          • 2...Bb8
            • 3.Se8
              • threat
                • 4.Sc7#
              • 3...Bc7
                • 4.Sxc7#
      • 1...Bd6
        • 2.Rg8+
          • 2...Bb8
            • 3.Se8
              • threat
                • 4.Sc7#
              • 3...Bc7
                • 4.Sxc7#
      • 1...Bc7
        • 2.Rg8+
          • 2...Bb8
            • 3.Se8
              • threat
                • 4.Sc7#
              • 3...Bc7
                • 4.Sxc7#

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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).