Problem Display
PID: 176705 (K7/8/7Q/3k4/8/3N4/3PN2p/8 w - - 0 1)

Erdos, Dr Geza

Schach-Echo, 1955

K7/8/7Q/3k4/8/3N4/3PN2p/8

#3

5 + 2


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Sc3+?
      • 1...Kd4
        • 2.Qd6+
          • 2...Kc4
            • 3.Qd5#
      • 1...Kc4!
    • 1.Sef4+?
      • 1...Kd4
        • 2.Qd6+
          • 2...Kc4
            • 3.Qb4#
            • 3.Qd5#
          • 2...Ke4
            • 3.Qd5#
      • 1...Ke4
        • 2.Qg5
          • threat
            • 3.Qd5#
          • 2...Kf3
            • 3.Qg2#
          • 2...Kd4
            • 3.Qd5#
        • 2.Qh5
          • threat
            • 3.Qd5#
          • 2...Kd4
            • 3.Qd5#
        • 2.Qc6+
          • 2...Kd4
            • 3.Qa4#
            • 3.Qd5#
          • 2...Kf5
            • 3.Qg6#
      • 1...Kc4!
  • Keys
    • 1.Kb7!
      • threat
        • 2.Qc6#
      • 1...Kc4
        • 2.Qa6+
          • 2...Kb3
            • 3.Sd4#
          • 2...Kd5
            • 3.Qc6#
      • 1...Ke4
        • 2.Qg6+
          • 2...Kf3
            • 3.Sd4#
          • 2...Kd5
            • 3.Qc6#

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).