Problem Display
PID: 222037 (8/3p4/Pp6/1k1K2n1/2p1pp2/R1P2P2/P7/8 w - - 0 1)

Belchikov, Nikolai Invanovich

Petrusenko, Alexey Matveevich

Freie Presse, 1975

8/3p4/Pp6/1k1K2n1/2p1pp2/R1P2P2/P7/8

#4

6 + 7


6490 yacpdb 2020
  • SOUND
  • Keys
    • 1.a7!
      • threat
        • 2.a8Q
          • threat
            • 3.Qa4#
            • 3.Qa6#
      • 1...Se6
        • 2.a8S
          • threat
            • 3.Ra7
              • threat
                • 4.a4#
              • 3...Sc7+
                • 4.Sxc7#
              • 3...Sc5
                • 4.Sc7#
      • 1...Sh7
        • 2.a8Q
          • threat
            • 3.Qa4#
            • 3.Qa6#
          • 2...Sf6+
            • 3.Kd4
              • threat
                • 4.Qa4#


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).