Problem Display
PID: 255515 (8/r2P4/p2Q4/P2N2K1/3k3p/pPpp3b/P2pP1p1/1n2b2r w - - 0 1)

Sukhitashvili, Sergey Nikolaevich

Sachove umeni (Ceskoslovensky sach), 1971

8/r2P4/p2Q4/P2N2K1/3k3p/pPpp3b/P2pP1p1/1n2b2r

#4

8 + 13


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Keys
    • 1.Kf6!
      • threat
        • 2.Qe5+
          • 2...Kc5
            • 3.Se7+
              • 3...Kb4
                • 4.Sc6#
      • 1...Rf1+
        • 2.Sf4+
          • 2...Ke3
            • 3.Qe5+
              • 3...Kf2
                • 4.Sxh3#
      • 1...Rxd7
        • 2.Qb4+
          • 2...Kxd5
            • 3.e4+
              • 3...Kc6
                • 4.Qb6#
      • 1...Bxd7
        • 2.Qb4+
          • 2...Kxd5
            • 3.e4+
              • 3...Kc6
                • 4.Qb6#
      • 1...Rc7
        • 2.Qe5+
          • 2...Kc5
            • 3.Sf4+
              • 3...Kb4
                • 4.Sxd3#
              • 3...Kc6
                • 4.Qd5#
      • 1...Bg3
        • 2.Sf4+
          • 2...Ke3
            • 3.Qc5+
              • 3...Ke4
                • 4.Qe5#
              • 3...Kxf4
                • 4.Qd4#
      • 1...Be6
        • 2.Kxe6
          • threat
            • 3.Qb4#
          • 2...dxe2
            • 3.Qf4+
              • 3...Kd3
                • 4.Sb4#
              • 3...Kc5
                • 4.Qc4#
          • 2...Rb7
            • 3.Qf4+
              • 3...Kc5
                • 4.Qc4#
            • 3.e3+
              • 3...Ke4
                • 4.Qf4#
          • 2...Rc7
            • 3.Qb4+
              • 3...Rc4
                • 4.Qxc4#
            • 3.Qf4+
              • 3...Kc5
                • 4.Qc4#
            • 3.e3+
              • 3...Ke4
                • 4.Qf4#
            • 3.Qxc7
              • threat
                • 4.Qc4#
              • 3...Ke4
                • 4.Qf4#
                • 4.Qe5#
                • 4.Qc4#

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).