Problem Display
PID: 261915 (8/8/4K3/1p6/5k2/2P5/6Q1/2N5 w - - 0 1)

Erdos, Dr Geza

Problemnoter, 1964

8/8/4K3/1p6/5k2/2P5/6Q1/2N5

#3

4 + 2


6490 yacpdb 2022

SOLUTION


  • SOUND
  • Sets
    • 1...Ke3
      • 2.Ke5
        • 2...b4
          • 3.Qe2#
      • 2.Kf5
        • 2...b4
          • 3.Qe2#
  • Tries
    • 1.Kf6?
      • 1...Ke3
        • 2.Ke5
          • 2...b4
            • 3.Qe2#
        • 2.Kf5
          • 2...b4
            • 3.Qe2#
        • 2.Kg5
          • 2...b4
            • 3.Qe2#
      • 1...b4!
    • 1.Sa2?
      • 1...Ke3
        • 2.Sb4
          • 2...Kf4
            • 3.Sd5#
      • 1...b4!
    • 1.Qg3+?
      • 1...Ke4
        • 2.Sb3
          • 2...b4
            • 3.Sd2#
            • 3.Sc5#
        • 2.Sd3
          • 2...b4
            • 3.Sf2#
            • 3.Sc5#
      • 1...Kxg3!
  • Keys
    • 1.Sd3+!
      • 1...Ke3
        • 2.Sb4
          • 2...Kf4
            • 3.Sd5#

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).