Problem Display
PID: 201017 (8/1p5K/p1p4B/4k3/2P3Q1/pP5P/P7/8 w - - 0 1)

Kubbel, Arvid Ivanovich

Shakhmaty, 1923

8/1p5K/p1p4B/4k3/2P3Q1/pP5P/P7/8

#4

7 + 5


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Qg6!
      • threat
        • 2.Bg7+
          • 2...Kf4
            • 3.Bd4
              • threat
                • 4.Qg4#
              • 3...Kf3
                • 4.Qg4#
      • 1...Kd4
        • 2.Qg3
          • threat
            • 3.Qe3#
          • 2...Ke4
            • 3.Kg6
              • threat
                • 4.Qe3#
              • 3...Kd4
                • 4.Qe3#
          • 2...Kc5
            • 3.Be3+
              • 3...Kb4
                • 4.Qe1#
      • 1...c5
        • 2.Qf7
          • threat
            • 3.Qd5+
              • 3...Kf6
                • 4.Bg5#
          • 2...Kd4
            • 3.Qd5+
              • 3...Kc3
                • 4.Qd2#
          • 2...Kd6
            • 3.Bf4+
              • 3...Kc6
                • 4.Qe6#
                • 4.Qc7#

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).