Problem Display
PID: 162896 (8/8/1P3p2/3N3K/1P1k4/pQ6/6P1/1B4b1 w - - 0 1)

Challenger, Alfred Clement

The Observer, 1925

(First published on Sun Jan 18 1925)

8/8/1P3p2/3N3K/1P1k4/pQ6/6P1/1B4b1

#3

7 + 4


15239 Valois Notebooks 2017

SOLUTION


  • SOUND
  • Tries
    • 1.Qd1+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Ke5!
    • 1.Qf3?
      • threat
        • 2.Qe4#
      • 1...f5
        • 2.Qxf5
          • threat
            • 3.Qe4#
          • 2...Kc4
            • 3.Qd3#
      • 1...Ke5!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sg6
          • threat
            • 3.Qd3#
      • 1...Ke5
        • 2.Qc3+
          • 2...Kxf4
            • 3.g3#
          • 2...Kd6
            • 3.Qc7#
          • 2...Bd4
            • 3.Qc7#
      • 1...a2
        • 2.Qb2+
          • 2...Ke3
            • 3.Sd5#
          • 2...Kc4
            • 3.Bd3#

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).