Problem Display
PID: 20082 (8/5N2/2p5/3p1p2/3pk2p/2p5/4B1p1/R1BR2Kn w - - 0 1)

Kainer, Cenek

Zlata Praha, 1923

8/5N2/2p5/3p1p2/3pk2p/2p5/4B1p1/R1BR2Kn

#4

6 + 9


SOLUTION


  • COOKED
  • Keys
    • 1.Bf3+!
      • 1...Kxf3
        • 2.Se5+
          • 2...Ke2
            • 3.Bf4
              • threat
                • 4.Re1#
    • 1.Re1!
      • threat
        • 2.Bd1+
          • 2...Kd3
            • 3.Se5#
      • 1...d3
        • 2.Ra4+
          • 2...d4
            • 3.Bd1+
              • 3...Kd5
                • 4.Re5#
            • 3.Bg4+
              • 3...Kd5
                • 4.Re5#
            • 3.Bh5+
              • 3...Kd5
                • 4.Re5#
      • 1...f4
        • 2.Bg4+
          • 2...Kd3
            • 3.Se5+
              • 3...Kc2
                • 4.Bd1#
      • 1...Sg3
        • 2.Bf3+
          • 2...Kd3
            • 3.Se5+
              • 3...Kc2
                • 4.Bd1#
        • 2.Bg4+
          • 2...Kd3
            • 3.Se5+
              • 3...Kc2
                • 4.Bd1#
          • 2...Se2+
            • 3.Rxe2+
              • 3...Kd3
                • 4.Se5#
        • 2.Bh5+
          • 2...Kd3
            • 3.Se5+
              • 3...Kc2
                • 4.Bd1#
          • 2...Se2+
            • 3.Rxe2+
              • 3...Kd3
                • 4.Se5#
      • 1...c2
        • 2.Ra3
          • threat
            • 3.Bd1#
            • 3.Bf1#
            • 3.Bf3#
            • 3.Bc4#
            • 3.Bg4#
            • 3.Bb5#
            • 3.Bh5#
            • 3.Ba6#
          • 2...d3
            • 3.Bxd3+
              • 3...Kf3
                • 4.Bxf5#
              • 3...Kd4
                • 4.Be3#

There are these versions: 251107

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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).