Problem Display
PID: 254892 (2b1B3/1p1p2p1/1P1P4/p5P1/kbR5/Np3p2/1P6/5K2 w - - 0 1)

Albarda, Johannes

Probleemblad, 1946

2b1B3/1p1p2p1/1P1P4/p5P1/kbR5/Np3p2/1P6/5K2

#4

8 + 9


SOLUTION


  • SOUND
  • Keys
    • 1.Rh4!
      • threat
        • 2.Bg6
          • 2...f2
            • 3.Bd3
              • 3...g6
                • 4.Bb5#
      • 1...g6
        • 2.Bxg6
          • 2...f2
            • 3.Be4
              • 3...Bxa3
                • 4.Bc6#
              • 3...Bxd6
                • 4.Bc6#
              • 3...Be1
                • 4.Bc6#
              • 3...Bd2
                • 4.Bc6#
              • 3...Bc3
                • 4.Bc6#
              • 3...Bc5
                • 4.Bc6#
      • 1...f2
        • 2.Bh5
          • 2...g6
            • 3.Bg4
              • 3...Bxa3
                • 4.Bxd7#
              • 3...Bxd6
                • 4.Bxd7#
              • 3...Be1
                • 4.Bxd7#
              • 3...Bd2
                • 4.Bxd7#
              • 3...Bc3
                • 4.Bxd7#
              • 3...Bc5
                • 4.Bxd7#

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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).