Problem Display
PID: 37415 (8/p2p1p2/2prkP2/2Prn2K/P3RR2/2P5/B7/3N4 w - - 0 1)

Seilberger, Johann Joseph Petrus Adrianus

HM., Bevrijdings, 1946

8/p2p1p2/2prkP2/2Prn2K/P3RR2/2P5/B7/3N4

#4

9 + 8


SOLUTION


  • SOUND
  • Keys
    • 1.Re2!
      • threat
        • 2.Sf2
          • threat
            • 3.Sd3
              • threat
                • 4.Rxe5#
            • 3.Sh3
              • threat
                • 4.Sg5#
            • 3.Se4
              • threat
                • 4.Sg5#
            • 3.Sg4
              • threat
                • 4.Rxe5#
      • 1...a5
        • 2.Se3
          • 2...Sd3+
            • 3.Sxd5+
              • 3...Se5
                • 4.Sc7#
          • 2...Sf3+
            • 3.Sxd5+
              • 3...Se5
                • 4.Sc7#
          • 2...Sc4+
            • 3.Sxd5+
              • 3...Kxd5
                • 4.Rf5#
              • 3...Se3
                • 4.Rxe3#
              • 3...Se5
                • 4.Sc7#
          • 2...Sg4+
            • 3.Sxd5+
              • 3...Se3
                • 4.Rxe3#
              • 3...Se5
                • 4.Sc7#
            • 3.Kxg4
              • 3...Ke5
                • 4.Sd1#
                • 4.Sf1#
                • 4.Sc2#
                • 4.Sg2#
                • 4.Sc4#
                • 4.Sxd5#
          • 2...Sg6+
            • 3.Sxd5+
              • 3...Se5
                • 4.Sc7#
      • 1...a6
        • 2.Sf2
          • 2...a5
            • 3.Se4
              • threat
                • 4.Sg5#

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).