Problem Display
PID: 186740 (7N/2K5/6p1/3B1k2/3Q4/6p1/8/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Problem Observer, 2018

7N/2K5/6p1/3B1k2/3Q4/6p1/8/8

#3

4 + 3


SOLUTION


  • SOUND
  • Sets
    • 1...g5
      • 2.Kd6
        • threat
          • 3.Be6#
        • 2...g4
          • 3.Qe5#
  • Tries
    • 1.Kd6?
      • 1...Kg5
        • 2.Sf7+
          • 2...Kf5
            • 3.Be6#
          • 2...Kh5
            • 3.Bf3#
      • 1...g2!
    • 1.Kd7?
      • 1...Kg5
        • 2.Sf7+
          • 2...Kf5
            • 3.Be6#
          • 2...Kh5
            • 3.Bf3#
      • 1...g2!
    • 1.Sf7?
      • threat
        • 2.Qe4+
          • 2...Kf6
            • 3.Qe5#
        • 2.Qh4
          • threat
            • 3.Qg5#
          • 2...g5
            • 3.Qxg5#
      • 1...g2
        • 2.Qe4+
          • 2...Kf6
            • 3.Qe5#
      • 1...g5!
    • 1.Bf3?
      • 1...Kg5
        • 2.Sf7+
          • 2...Kf5
            • 3.Bg4#
            • 3.Qe5#
      • 1...Ke6
        • 2.Bg4+
          • 2...Ke7
            • 3.Qd8#
      • 1...g2!
    • 1.Bc6?
      • 1...Kg5
        • 2.Sf7+
          • 2...Kf5
            • 3.Bd7#
          • 2...Kh5
            • 3.Bf3#
      • 1...Ke6
        • 2.Bd7+
          • 2...Ke7
            • 3.Qg7#
            • 3.Qd6#
      • 1...g2!
    • 1.Be6+?
      • 1...Kg5
        • 2.Sf7+
          • 2...Kh5
            • 3.Qh8#
            • 3.Qg4#
      • 1...Kxe6!
    • 1.Bb7?
      • 1...Kg5
        • 2.Sf7+
          • 2...Kf5
            • 3.Bc8#
          • 2...Kh5
            • 3.Bf3#
      • 1...Ke6
        • 2.Bc8+
          • 2...Ke7
            • 3.Qd8#
      • 1...g2!
  • Keys
    • 1.Bg2!
      • 1...Kg5
        • 2.Sf7+
          • 2...Kf5
            • 3.Bh3#
          • 2...Kh5
            • 3.Bf3#
      • 1...Ke6
        • 2.Bh3+
          • 2...Ke7
            • 3.Qd8#
      • 1...g5
        • 2.Kd6
          • 2...g4
            • 3.Qe5#

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).