MESON Chess Problem Database

Problem Display
PID: 266727 (8/5Q2/3N4/1N2k3/7n/4p3/4Pp2/5K2 w - - 0 1)

Koblov, N

Zadachi i Etyudi, 2011

8/5Q2/3N4/1N2k3/7n/4p3/4Pp2/5K2

#5

5 + 4

SOLUTION

  • SOUND
  • Keys
    • 1.Qf8!
      • threat
        • 2.Qf7
          • 2...Sf5
            • 3.Qxf5#
          • 2...Sg2
            • 3.Qf5#
          • 2...Sf3
            • 3.Qf5#
          • 2...Sg6
            • 3.Qf5#
      • 1...Kd5
        • 2.Qg8+
          • 2...Kc5
            • 3.Qc4+
              • 3...Kb6
                • 4.Qc7+
                  • 4...Ka6
                    • 5.Qa7#
          • 2...Kc6
            • 3.Qc4+
              • 3...Kb6
                • 4.Qc7+
                  • 4...Ka6
                    • 5.Qa7#
              • 3...Kd7
                • 4.Qe4
                  • threat
                    • 5.Qe8#
                  • 4...Kd8
                    • 5.Qe8#
      • 1...Ke6
        • 2.Qf4
          • 2...Kd5
            • 3.Qc4+
              • 3...Ke5
                • 4.Qf7
                  • 4...Sf5
                    • 5.Qxf5#
                  • 4...Sg2
                    • 5.Qf5#
                  • 4...Sf3
                    • 5.Qf5#
                  • 4...Sg6
                    • 5.Qf5#
          • 2...Sf5
            • 3.Qxf5+
              • 3...Ke7
                • 4.Qf7+
                  • 4...Kd8
                    • 5.Qe8#
                    • 5.Qc7#
                • 4.Qg6
                  • 4...Kd7
                    • 5.Qe8#
                  • 4...Kd8
                    • 5.Qe8#
                  • 4...Kf8
                    • 5.Qf7#

FEATURES

NOT CLASSIFIED
HTML5 logo

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).