Problem Display
PID: 26314 (K4R1b/1B6/1Bnpp1b1/P2k3r/1p1P1Q2/3p1n2/1N1p4/4N1q1 w - - 0 1)

Smirnov, M

64 Shakhmatnoe obozrenie, 1984

K4R1b/1B6/1Bnpp1b1/P2k3r/1p1P1Q2/3p1n2/1N1p4/4N1q1

#4

9 + 12


SOLUTION


  • SOUND
  • Keys
    • 1.Rd8!
      • threat
        • 2.Rxd6#
      • 1...e5
        • 2.Bxc6+
          • 2...Kxc6
            • 3.d5+
              • 3...Kb5
                • 4.Qc4#
              • 3...Kxd5
                • 4.Qc4#
          • 2...Ke6
            • 3.d5+
              • 3...Ke7
                • 4.Qf8#
      • 1...Re5
        • 2.Sc2
          • threat
            • 3.Sxb4#
          • 2...Qxd4
            • 3.Se3+
              • 3...Qxe3
                • 4.Qc4#
              • 3...Rxe3
                • 4.Rxd6#
          • 2...dxc2
            • 3.Qxf3+
              • 3...Re4
                • 4.Qb3#
              • 3...Be4
                • 4.Qb3#
      • 1...Be5
        • 2.Rc8
          • threat
            • 3.Bxc6#
          • 2...Sxd4
            • 3.Bxc6+
              • 3...Sxc6
                • 4.Qc4#
      • 1...Se5
        • 2.dxe5
          • threat
            • 3.Rxd6#
          • 2...Qxb6
            • 3.Rxd6+
              • 3...Kc5
                • 4.Qc4#
          • 2...Qc5
            • 3.Rxd6+
              • 3...Qxd6
                • 4.Qd4#

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).