Problem Display
PID: 217360 (7k/r1n3p1/5N2/r2bB3/6p1/1pQ3K1/8/8 w - - 0 1)

Kozdon, Baldur

3rd Prize, Schweizerische Schachzeitung, 1966

7k/r1n3p1/5N2/r2bB3/6p1/1pQ3K1/8/8

#5

4 + 8


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Qd3!
      • threat
        • 2.Qh7#
      • 1...gxf6
        • 2.Bxf6+
          • 2...Kg8
            • 3.Qg6+
              • 3...Kf8
                • 4.Qg7+
                  • 4...Ke8
                    • 5.Qe7#
      • 1...Bg8
        • 2.Qd2
          • threat
            • 3.Qh2+
              • 3...Bh7
                • 4.Qxh7#
          • 2...Rxe5
            • 3.Qh2+
              • 3...Rh5
                • 4.Qxh5+
                  • 4...Bh7
                    • 5.Qxh7#
          • 2...gxf6
            • 3.Qh6+
              • 3...Bh7
                • 4.Bxf6+
                  • 4...Kg8
                    • 5.Qg7#
                • 4.Qxf6+
                  • 4...Kg8
                    • 5.Qg7#
          • 2...g5
            • 3.Sd5+
              • 3...Kh7
                • 4.Qxg5
                  • threat
                    • 5.Qh5#
                    • 5.Qg7#
            • 3.Qxg5
              • threat
                • 4.Qxg8#
              • 3...Ra8
                • 4.Sd5+
                  • 4...Kh7
                    • 5.Qh5#
                    • 5.Qg7#
                • 4.Sh5+
                  • 4...Kh7
                    • 5.Qg7#
                  • 4...Rxe5
                    • 5.Qg7#
                • 4.Se8+
                  • 4...Kh7
                    • 5.Qh5#
                    • 5.Qg7#
                  • 4...Rxe5
                    • 5.Qg7#
                • 4.Qh6+
                  • 4...Bh7
                    • 5.Qxh7#
          • 2...Ra2
            • 3.Qh6+
              • 3...gxh6
                • 4.Sd7+
                  • 4...Kh7
                    • 5.Sf8#
          • 2...Bh7
            • 3.Qd8+
              • 3...Se8
                • 4.Qxe8+
                  • 4...Bg8
                    • 5.Qxg8#

FEATURES


NOT CLASSIFIED


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).