Problem Display
PID: 82700 (5r2/2pN1p2/2B1p1n1/2B5/3PRp1n/p2k1p2/rp1p4/bK1N4 w - - 0 1)

Havel, Miroslav

The Observer, 1931

(First published on Sun Dec 27 1931)

5r2/2pN1p2/2B1p1n1/2B5/3PRp1n/p2k1p2/rp1p4/bK1N4

#3

7 + 14


6490 yacpdb 2009
15239 Valois Notebooks 2018

SOLUTION


  • SOUND
  • Sets
    • 1...Sf5
      • 2.Bb5+
        • 2...Kxe4
          • 3.Sf6#
    • 1...Se5
      • 2.Sxe5#
    • 1...Se7
      • 2.Se5#
    • 1...Sh8
      • 2.Se5#
  • Tries
    • 1.Re3+?
      • 1...Kc4
        • 2.Rc3#
      • 1...fxe3!
  • Keys
    • 1.Ba7!
      • threat
        • 2.Sc5+
          • 2...Kc4
            • 3.d5#
      • 1...Kc4
        • 2.d5+
          • 2...Kb3
            • 3.Sc5#
            • 3.Ba4#
          • 2...Kd3
            • 3.Sc5#
      • 1...f5
        • 2.d5
          • threat
            • 3.Sc5#
          • 2...Kxe4
            • 3.Sf2#
          • 2...fxe4
            • 3.Bb5#
      • 1...Sf5
        • 2.Bb5+
          • 2...Kxe4
            • 3.Sf6#
      • 1...e5
        • 2.Sc5+
          • 2...Kc4
            • 3.dxe5#
            • 3.d5#
        • 2.Bd5
          • threat
            • 3.Sc5#
          • 2...c5
            • 3.Sxc5#
        • 2.dxe5
          • threat
            • 3.Sc5#

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).