Problem Display
PID: 82693 (n1Q5/B3kp1K/3p1p2/3P1p1p/2N1p1p1/6r1/5n1q/3b4 w - - 0 1)

Havel, Miroslav

The Observer, 1931

(First published on Sun Apr 5 1931)

n1Q5/B3kp1K/3p1p2/3P1p1p/2N1p1p1/6r1/5n1q/3b4

#3

5 + 13


6490 yacpdb 2009
15239 Valois Notebooks 2018

SOLUTION


  • SOUND
  • Sets
    • 1...Qg1
      • 2.Bc5
        • threat
          • 3.Bxd6#
        • 2...dxc5
          • 3.d6#
    • 1...Qh1
      • 2.Bc5
        • threat
          • 3.Bxd6#
        • 2...dxc5
          • 3.d6#
    • 1...Qg2
      • 2.Bc5
        • threat
          • 3.Bxd6#
        • 2...dxc5
          • 3.d6#
    • 1...Qh3
      • 2.Bc5
        • threat
          • 3.Bxd6#
        • 2...dxc5
          • 3.d6#
    • 1...Qh4
      • 2.Bc5
        • threat
          • 3.Bxd6#
        • 2...dxc5
          • 3.d6#
    • 1...Bf3
      • 2.Se3
        • threat
          • 3.Sxf5#
        • 2...f4
          • 3.Sf5#
      • 2.Sa5
        • threat
          • 3.Sc6#
    • 1...Sb6
      • 2.Bxb6
        • threat
          • 3.Qd8#
  • Tries
    • 1.Sb6?
      • threat
        • 2.Qd7+
          • 2...Kf8
            • 3.Qd8#
      • 1...Sxb6
        • 2.Bxb6
          • threat
            • 3.Qd8#
      • 1...Sc7
        • 2.Kg8
          • threat
            • 3.Qd7#
            • 3.Qf8#
      • 1...Ba4!
    • 1.Bb6?
      • threat
        • 2.Qd8#
      • 1...Sc7
        • 2.Bxc7
          • threat
            • 3.Bxd6#
            • 3.Qd8#
        • 2.Qxc7+
          • 2...Ke8
            • 3.Qd8#
          • 2...Kf8
            • 3.Qd8#
      • 1...Sxb6!
    • 1.Qd7+?
      • 1...Kf8
        • 2.Qd8#
      • 1...Kxd7!
    • 1.Qc7+?
      • 1...Ke8
        • 2.Sxd6+
          • 2...Kf8
            • 3.Qd8#
            • 3.Qxf7#
      • 1...Sxc7!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Bxf6+
          • 2...Kxf6
            • 3.Qd8#
      • 1...Qh4
        • 2.Bc5
          • threat
            • 3.Bxd6#
          • 2...dxc5
            • 3.d6#
      • 1...f4
        • 2.Sxd6
          • threat
            • 3.Sf5#
          • 2...Kxd6
            • 3.Qd8#
          • 2...f5
            • 3.Sxf5#

This is a version

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).