Problem Display
PID: 256019 (8/3Q4/8/4k3/8/6K1/8/1B6 w - - 0 1)

Antonov, Yuri Mikhailovich

Volgogradskaya Pravda, 1973

8/3Q4/8/4k3/8/6K1/8/1B6

#4

3 + 1


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Keys
    • 1.Ba2!
      • threat
        • 2.Kg4
          • threat
            • 3.Qd5+
              • 3...Kf6
                • 4.Qg5#
          • 2...Ke4
            • 3.Qd2
              • 3...Ke5
                • 4.Qf4#
          • 2...Kf6
            • 3.Qf7+
              • 3...Ke5
                • 4.Qf4#
      • 1...Ke4
        • 2.Qd6
          • threat
            • 3.Bb1+
              • 3...Ke3
                • 4.Qd3#
          • 2...Ke3
            • 3.Bc4
              • 3...Ke4
                • 4.Qf4#
          • 2...Kf5
            • 3.Bb1+
              • 3...Kg5
                • 4.Qg6#
      • 1...Kf6
        • 2.Qf7+
          • 2...Kg5
            • 3.Bb1
              • 3...Kh6
                • 4.Qg6#
        • 2.Kf4
          • 2...Kg6
            • 3.Bg8
              • 3...Kh5
                • 4.Qh7#
              • 3...Kf6
                • 4.Qf7#
              • 3...Kh6
                • 4.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).