Problem Display
PID: 83343 (6B1/8/2k5/Q4p2/2p2K2/8/2N5/8 w - - 0 1)

Havel, Miroslav

Revue FIDE, 1958

6B1/8/2k5/Q4p2/2p2K2/8/2N5/8

#4

4 + 3


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Keys
    • 1.Qa7!
      • threat
        • 2.Bxc4
          • 2...Kd6
            • 3.Qb7
              • 3...Kc5
                • 4.Qc7#
      • 1...Kb5
        • 2.Qc7
          • threat
            • 3.Bxc4+
              • 3...Ka4
                • 4.Qa7#
          • 2...Ka4
            • 3.Qb6
              • 3...c3
                • 4.Bb3#
                • 4.Qb4#
                • 4.Qa6#
          • 2...c3
            • 3.Bc4+
              • 3...Ka4
                • 4.Qa7#
            • 3.Bb3
              • 3...Ka6
                • 4.Bc4#
      • 1...Kd6
        • 2.Bxc4
          • 2...Kc6
            • 3.Ke5
              • 3...f4
                • 4.Sb4#
                • 4.Sd4#
        • 2.Bd5
          • 2...Kxd5
            • 3.Qb6
              • 3...c3
                • 4.Se3#
          • 2...c3
            • 3.Qb7
              • 3...Kc5
                • 4.Qc6#
      • 1...c3
        • 2.Bc4
          • 2...Kd6
            • 3.Qb7
              • 3...Kc5
                • 4.Qc7#

FEATURES


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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).