Problem Display
PID: 197788 (4kN2/K2R1p1N/2p4p/p1P5/8/4p3/8/R3b2r w - - 0 1)

Efrosinin, Oleg

Probleemblad, 1980

4kN2/K2R1p1N/2p4p/p1P5/8/4p3/8/R3b2r

#5

6 + 8


SOLUTION


  • SOUND
  • Keys
    • 1.Ra3!
      • threat
        • 2.Rxe3#
      • 1...Rh3
        • 2.Rad3
          • threat
            • 3.Rd8+
              • 3...Ke7
                • 4.R3d7#
          • 2...Bh4
            • 3.Rb3
              • threat
                • 4.Rb8+
                  • 4...Bd8
                    • 5.Rbxd8#
              • 3...Bg3
                • 4.Rxe3+
                  • 4...Be5
                    • 5.Rxe5#
              • 3...Bg5
                • 4.Rb8+
                  • 4...Bd8
                    • 5.Rbxd8#
              • 3...Bf6
                • 4.Rb8+
                  • 4...Bd8
                    • 5.Rbxd8#
              • 3...Be7
                • 4.Rb8+
                  • 4...Bd8
                    • 5.Rbxd8#
              • 3...Bd8
                • 4.Rb8
                  • threat
                    • 5.Rbxd8#
      • 1...Bf2
        • 2.Rad3
          • threat
            • 3.Rd8+
              • 3...Ke7
                • 4.R3d7#
          • 2...Rd1
            • 3.Rd8+
              • 3...Ke7
                • 4.Rxd1
                  • threat
                    • 5.R1d7#

FEATURES


NOT CLASSIFIED


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).