Problem Display
PID: 102722 (K4NB1/3PB1k1/pbp5/qp6/p2p1pp1/3b1P2/7Q/5rrn w - - 0 1)

Schmitt, Olivier

Europe Echecs, 1990

K4NB1/3PB1k1/pbp5/qp6/p2p1pp1/3b1P2/7Q/5rrn

#5

7 + 14


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Keys
    • 1.Qa2!
      • threat
        • 2.Qf7+
          • 2...Kh6
            • 3.Qf6+
              • 3...Kh5
                • 4.Qh4#
                • 4.Qg5#
              • 3...Bg6
                • 4.Qxg6#
      • 1...Kh6
        • 2.Qe6+
          • 2...Kg7
            • 3.Qf7+
              • 3...Kh6
                • 4.Qf6+
                  • 4...Kh5
                    • 5.Qh4#
                    • 5.Qg5#
                  • 4...Bg6
                    • 5.Qxg6#
            • 3.Bf7
              • threat
                • 4.Qf6#
              • 3...Bg6
                • 4.Qf6+
                  • 4...Kh6
                    • 5.Qxg6#
                • 4.Qxg6+
                  • 4...Kh8
                    • 5.Bf6#
                    • 5.Qh7#
                    • 5.Qf6#
                    • 5.Qh6#
                    • 5.Qg8#
        • 2.Qf7
          • threat
            • 3.Qf6+
              • 3...Kh5
                • 4.Qh4#
                • 4.Qg5#
              • 3...Bg6
                • 4.Qxg6#
          • 2...gxf3
            • 3.Qf6+
              • 3...Bg6
                • 4.Qh8+
                  • 4...Bh7
                    • 5.Qxh7#
      • 1...gxf3
        • 2.Qf7+
          • 2...Kh6
            • 3.Qf6+
              • 3...Bg6
                • 4.Qh8+
                  • 4...Bh7
                    • 5.Qxh7#
      • 1...Bc4
        • 2.Qc2
          • threat
            • 3.Qh7#
          • 2...d3
            • 3.Qh2
              • threat
                • 4.Qh7#
              • 3...Bxg8
                • 4.Qh8+
                  • 4...Kf7
                    • 5.Qf6#
                  • 4...Kxh8
                    • 5.Bf6#
      • 1...Bd8
        • 2.Qf7+
          • 2...Kh8
            • 3.Sg6+
              • 3...Bxg6
                • 4.Qxg6
                  • threat
                    • 5.Qh7#

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).