Problem Display
PID: 219097 (1B6/7K/p2rNp1b/3pkB2/1P1pP3/4p3/3q3P/2N1rQ2 w - - 0 1)

Wormald, Robert Bownas

English Mechanic and World of Science, 1874

(First published on Fri Aug 7 1874)

1B6/7K/p2rNp1b/3pkB2/1P1pP3/4p3/3q3P/2N1rQ2

#3

9 + 10


15239 Valois Notebooks 2020

SOLUTION


  • SOUND
  • Sets
    • 1...Qxb4
      • 2.Sd3#
    • 1...Qa2
      • 2.Sd3#
    • 1...Qb2
      • 2.Sd3#
    • 1...Qf2
      • 2.Sd3#
    • 1...Qg2
      • 2.Sd3#
    • 1...Qxh2
      • 2.Sd3#
    • 1...Qd3
      • 2.Sxd3#
    • 1...Bf4
      • 2.Qxf4#
    • 1...Bg7
      • 2.Qf4#
    • 1...Bf8
      • 2.Qf4#
    • 1...a5
      • 2.Qb5
        • threat
          • 3.Qxd5#
        • 2...Qa2
          • 3.Sd3#
  • Tries
    • 1.Bg4?
      • threat
        • 2.Qf5#
      • 1...Qf2
        • 2.Sd3+
          • 2...Kxe4
            • 3.Sec5#
      • 1...Rxf1!
    • 1.Qc4?
      • threat
        • 2.Qxd5#
      • 1...dxe4
        • 2.Qc5#
      • 1...Qa2
        • 2.Sd3#
        • 2.Qxd4#
      • 1...dxc4!
    • 1.Qb5?
      • threat
        • 2.Qxd5#
      • 1...Qa2
        • 2.Sd3#
      • 1...axb5!
  • Keys
    • 1.Qxa6!
      • threat
        • 2.Bxd6#
        • 2.Qxd6#
      • 1...Bf8
        • 2.Qa2
          • threat
            • 3.Qxd5#
          • 2...Qxh2+
            • 3.Qxh2#
          • 2...Qxa2
            • 3.Sd3#
          • 2...dxe4
            • 3.Qa5#

This is a version of 218781

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).