Problem Display
PID: 261909 (8/7Q/4K3/2N3k1/6P1/6N1/8/8 w - - 0 1)

Erdos, Dr Geza

Problemnoter, 1957

8/7Q/4K3/2N3k1/6P1/6N1/8/8

#3

5 + 1


6490 yacpdb 2022

SOLUTION


  • SOUND
  • Tries
    • 1.Sf1?
      • threat
        • 2.Qh5+
          • 2...Kf4
            • 3.Qf5#
      • 1...Kf4
        • 2.Qf5#
      • 1...Kxg4!
    • 1.Sge4+?
      • 1...Kf4
        • 2.Qf5+
          • 2...Ke3
            • 3.Qf2#
      • 1...Kxg4!
    • 1.Sce4+?
      • 1...Kxg4
        • 2.Qf5+
          • 2...Kh4
            • 3.Qh5#
      • 1...Kf4!
    • 1.Qh3?
      • 1...Kf4
        • 2.Se2+
          • 2...Kg5
            • 3.Qh5#
      • 1...Kg6!
  • Keys
    • 1.Sh1!
      • 1...Kf4
        • 2.Qf5+
          • 2...Ke3
            • 3.Qf2#
      • 1...Kxg4
        • 2.Kf6
          • 2...Kf3
            • 3.Qe4#
          • 2...Kf4
            • 3.Qe4#

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).