Problem Display
PID: 251128 (8/Q7/3B4/7p/7K/5P2/5Nk1/8 w - - 0 1)

Alekseev, Yuri Mikhailovich

Uralski Problemist, 2012

8/Q7/3B4/7p/7K/5P2/5Nk1/8

#3

5 + 2


SOLUTION


  • SOUND
  • Tries
    • 1.Sh1?
      • threat
        • 2.Qf2+
          • 2...Kxh1
            • 3.Qf1#
            • 3.Qh2#
      • 1...Kxh1
        • 2.Kh3
          • 2...h4
            • 3.Qa1#
      • 1...Kxf3!
    • 1.Sd3?
      • threat
        • 2.Qf2+
          • 2...Kh1
            • 3.Qf1#
            • 3.Qh2#
      • 1...Kh1
        • 2.Kh3
          • 2...h4
            • 3.Qa1#
      • 1...Kxf3!
    • 1.Sh3?
      • threat
        • 2.Qf2+
          • 2...Kh1
            • 3.Qg1#
            • 3.Qf1#
            • 3.Qh2#
        • 2.Qe3
          • 2...Kf1
            • 3.Qf2#
          • 2...Kh1
            • 3.Qg1#
      • 1...Kf1
        • 2.Qf2#
      • 1...Kh1
        • 2.Qg1#
      • 1...Kxf3!
    • 1.Se4?
      • threat
        • 2.Qf2+
          • 2...Kh1
            • 3.Sg3#
            • 3.Qf1#
            • 3.Qh2#
      • 1...Kh1
        • 2.Kh3
          • 2...h4
            • 3.Qa1#
      • 1...Kxf3!
    • 1.Qa1?
      • 1...Kxf3
        • 2.Bc5
          • 2...Ke2
            • 3.Qd1#
          • 2...Kg2
            • 3.Qh1#
          • 2...Kf4
            • 3.Qf6#
      • 1...Kxf2!
  • Keys
    • 1.Bc5!
      • 1...Kf1
        • 2.Qa1+
          • 2...Ke2
            • 3.Qd1#
          • 2...Kg2
            • 3.Qh1#
      • 1...Kg1
        • 2.Qa1+
          • 2...Kg2
            • 3.Qh1#
          • 2...Kh2
            • 3.Qh1#
      • 1...Kh2
        • 2.Qa1
          • 2...Kg2
            • 3.Qh1#
      • 1...Kxf3
        • 2.Qa1
          • 2...Ke2
            • 3.Qd1#
          • 2...Kg2
            • 3.Qh1#
          • 2...Kf4
            • 3.Qf6#

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).