Problem Display
PID: 156464 (1K4n1/5p2/B1p1p3/2Bk1N2/1pp1N3/6p1/6P1/7Q w - - 0 1)

Lukashev, Viktor Sergeevich

5th Comm., Best Problems, 2006-2007

1K4n1/5p2/B1p1p3/2Bk1N2/1pp1N3/6p1/6P1/7Q

#3

7 + 8


4901 Best Problems 2008

SOLUTION


  • SOUND
  • Sets
    • 1...e5
      • 2.Qd1+
        • 2...Kxe4
          • 3.Qf3#
        • 2...Ke6
          • 3.Sg7#
          • 3.Bc8#
  • Tries
    • 1.Sfxg3?
      • threat
        • 2.Qd1+
          • 2...Ke5
            • 3.Bd6#
            • 3.Qd6#
      • 1...e5
        • 2.Qd1+
          • 2...Ke6
            • 3.Bxc4#
            • 3.Bc8#
            • 3.Qd6#
      • 1...Ke5!
    • 1.Qd1+?
      • 1...Kxe4
        • 2.Qf3+
          • 2...Ke5
            • 3.Bd4#
      • 1...Ke5!
  • Keys
    • 1.Qf1!
      • threat
        • 2.Bd6
          • threat
            • 3.Qxc4#
          • 2...Kxe4
            • 3.Qf3#
          • 2...c5
            • 3.Bb7#
          • 2...c3
            • 3.Qd3#
            • 3.Qc4#
      • 1...Kxe4
        • 2.Qf3+
          • 2...Ke5
            • 3.Bd4#
      • 1...Ke5
        • 2.Bd6+
          • 2...Kxe4
            • 3.Qf3#
          • 2...Kd5
            • 3.Qxc4#
      • 1...Sf6
        • 2.Sxf6+
          • 2...Kxc5
            • 3.Qg1#
          • 2...Ke5
            • 3.Bd4#
      • 1...Sh6
        • 2.Sf6+
          • 2...Kxc5
            • 3.Qg1#
          • 2...Ke5
            • 3.Bd4#
        • 2.Bd6
          • threat
            • 3.Sf6#
            • 3.Qxc4#
          • 2...Kxe4
            • 3.Qf3#
          • 2...c5
            • 3.Bb7#
      • 1...Se7
        • 2.Sf6+
          • 2...Kxc5
            • 3.Qg1#
          • 2...Ke5
            • 3.Bd4#
      • 1...b3
        • 2.Bd6
          • threat
            • 3.Sc3#
            • 3.Qxc4#
          • 2...Kxe4
            • 3.Qf3#
          • 2...c5
            • 3.Bb7#
          • 2...c3
            • 3.Sxc3#
            • 3.Qd3#
            • 3.Qc4#
      • 1...c3
        • 2.Bd6
          • threat
            • 3.Qd3#
            • 3.Qc4#
          • 2...Kxe4
            • 3.Qd3#
            • 3.Qf3#
          • 2...c5
            • 3.Bb7#

FEATURES


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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).