Problem Display
PID: 254408 (4K3/8/4k3/R3P3/8/4P2P/3N4/8 w - - 0 1)

Koblov, N

Zadachi i Etyudi, 2005

4K3/8/4k3/R3P3/8/4P2P/3N4/8

#4

6 + 1


3713 Snap 2021
  • SOUND
  • Keys
    • 1.Ra8!
      • 1...Kd5
        • 2.Kd7
          • threat
            • 3.Ra5#
          • 2...Kc5
            • 3.Rb8
              • 3...Kd5
                • 4.Rb5#
          • 2...Kxe5
            • 3.Rf8
              • 3...Kd5
                • 4.Rf5#
      • 1...Kxe5
        • 2.Ke7
          • threat
            • 3.Ra5#
          • 2...Kd5
            • 3.Rc8
              • 3...Ke5
                • 4.Rc5#
          • 2...Kf5
            • 3.Rg8
              • 3...Ke5
                • 4.Rg5#
      • 1...Kf5
        • 2.Kf7
          • 2...Kxe5
            • 3.Rd8
              • 3...Kf5
                • 4.Rd5#
          • 2...Kg5
            • 3.Rh8
              • 3...Kf5
                • 4.Rh5#

Anticipated by 177208(1965)



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).