Problem Display
PID: 75272 (6KQ/1n1p1p2/1R6/PRpk1PP1/7P/r1pPp1P1/2n1r2b/8 w - - 0 1)

Makaronets, Leonid

1st Prize, Thema Danicum, 2004-2005

6KQ/1n1p1p2/1R6/PRpk1PP1/7P/r1pPp1P1/2n1r2b/8

#4

10 + 11


145 StrateGems 2007
15323 FIDE Album (2004-2006) 2013

SOLUTION


  • SOUND
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qxf7+
          • 2...Kd4
            • 3.Qc4+
              • 3...Ke5
                • 4.Qe4#
          • 2...Ke5
            • 3.Qe8+
              • 3...Kd4
                • 4.Qe4#
              • 3...Kd5
                • 4.Qe4#
              • 3...Kxf5
                • 4.Qe4#
            • 3.Qe7+
              • 3...Kd4
                • 4.Qe4#
              • 3...Kd5
                • 4.Qe4#
              • 3...Kxf5
                • 4.Qe4#
      • 1...Bxg3
        • 2.Qxf7+
          • 2...Kd4
            • 3.Qc4+
              • 3...Ke5
                • 4.Qe4#
          • 2...Ke5
            • 3.Qe8+
              • 3...Kd4
                • 4.Qe4#
              • 3...Kf4
                • 4.Qe4#
              • 3...Kd5
                • 4.Qe4#
              • 3...Kxf5
                • 4.Qe4#
            • 3.Qe7+
              • 3...Kd4
                • 4.Qe4#
              • 3...Kf4
                • 4.Qe4#
              • 3...Kd5
                • 4.Qe4#
              • 3...Kxf5
                • 4.Qe4#
      • 1...Ra4
        • 2.Rxc5+
          • 2...Kxc5
            • 3.Rb5+
              • 3...Kxb5
                • 4.Qb6#
      • 1...Sd4
        • 2.Rd6+
          • 2...Sxd6
            • 3.Qe5+
              • 3...Kxe5
                • 4.Rxc5#
              • 3...Kc6
                • 4.Qxc5#
      • 1...d6
        • 2.Qxf7+
          • 2...Kd4
            • 3.Qc4+
              • 3...Ke5
                • 4.Qe4#
          • 2...Ke5
            • 3.Qe6+
              • 3...Kd4
                • 4.Qe4#
            • 3.Qe8+
              • 3...Kd4
                • 4.Qe4#
              • 3...Kd5
                • 4.Qe4#
              • 3...Kxf5
                • 4.Qe4#
            • 3.Qe7+
              • 3...Kd4
                • 4.Qe4#
              • 3...Kd5
                • 4.Qe4#
              • 3...Kxf5
                • 4.Qe4#

FEATURES


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