Problem Display
PID: 120167 (7n/8/Q7/3Pp3/6P1/8/3K1pPB/5N1k w - - 0 1)

Aleksandrov, Rostislav Nikolaevich

British Chess Magazine, 1935

7n/8/Q7/3Pp3/6P1/8/3K1pPB/5N1k

#3

7 + 4


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Tries
    • 1.Bg3?
      • threat
        • 2.Se3
          • threat
            • 3.Qf1#
          • 2...f1S+
            • 3.Qxf1#
          • 2...Kg1
            • 3.Qf1#
          • 2...f1Q
            • 3.Qxf1#
          • 2...f1B
            • 3.Qxf1#
          • 2...f1R
            • 3.Qxf1#
      • 1...Kg1
        • 2.Se3
          • threat
            • 3.Qf1#
          • 2...f1S+
            • 3.Qxf1#
          • 2...Kh1
            • 3.Qf1#
          • 2...f1Q
            • 3.Qxf1#
          • 2...f1B
            • 3.Qxf1#
          • 2...f1R
            • 3.Qxf1#
      • 1...Kxg2!
    • 1.Qe2?
      • threat
        • 2.Qxf2
          • threat
            • 3.Qg1#
        • 2.Qe4
          • threat
            • 3.g3#
      • 1...Sg6
        • 2.Qxf2
          • threat
            • 3.Qg1#
      • 1...Sf7
        • 2.Qxf2
          • threat
            • 3.Qg1#
      • 1...e4
        • 2.Qxe4
          • threat
            • 3.g3#
      • 1...Kxg2!
    • 1.Qa3?
      • threat
        • 2.Qh3
          • threat
            • 3.Sg3#
      • 1...Kxg2
        • 2.Qg3+
          • 2...Kxf1
            • 3.Qh3#
          • 2...Kh1
            • 3.Qf3#
      • 1...e4!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Qe4
          • threat
            • 3.g3#
        • 2.Qh3
          • threat
            • 3.Sg3#
      • 1...Kxg2
        • 2.Qg3+
          • 2...Kxf1
            • 3.Qh3#
          • 2...Kh1
            • 3.Qf3#
      • 1...Sg6
        • 2.Qh3
          • threat
            • 3.Sg3#
      • 1...Sf7
        • 2.Qh3
          • threat
            • 3.Sg3#
      • 1...e4
        • 2.Qxe4
          • threat
            • 3.g3#

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).