Problem Display
PID: 153105 (8/8/8/NP6/k1p1p3/8/3QKB2/8 w - - 0 1)

Bogdanov, Evgeny Mikhailovich

Schweizerische Schachzeitung, 2001

8/8/8/NP6/k1p1p3/8/3QKB2/8

#3

5 + 3


SOLUTION


  • SOUND
  • Sets
    • 1...Ka3
      • 2.Bc5+
        • 2...Ka4
          • 3.Qb4#
  • Tries
    • 1.Bc5?
      • threat
        • 2.Qb4#
      • 1...Kxb5
        • 2.Qb4+
          • 2...Ka6
            • 3.Qb6#
      • 1...c3!
    • 1.Bb6?
      • 1...Ka3
        • 2.Bc5+
          • 2...Ka4
            • 3.Qb4#
      • 1...c3
        • 2.Qd5
          • threat
            • 3.Qb3#
          • 2...Ka3
            • 3.Qb3#
          • 2...Kb4
            • 3.Qb3#
      • 1...e3
        • 2.Qb2
          • 2...c3
            • 3.Qb3#
      • 1...Kxb5!
    • 1.Qb2?
      • threat
        • 2.Sc6
          • threat
            • 3.Qb4#
        • 2.Bc5
          • threat
            • 3.Qb4#
          • 2...Kxa5
            • 3.Qb4#
      • 1...Kxa5
        • 2.Bc5
          • threat
            • 3.Qb4#
          • 2...Ka4
            • 3.Qb4#
      • 1...e3
        • 2.Sc6
          • threat
            • 3.Qb4#
      • 1...c3!
  • Keys
    • 1.Be1!
      • threat
        • 2.Qb4#
      • 1...Ka3
        • 2.Qc2
          • threat
            • 3.Sxc4#
          • 2...c3
            • 3.Qb3#
      • 1...Kxb5
        • 2.Qb4+
          • 2...Ka6
            • 3.Qb7#
      • 1...c3
        • 2.Qxc3
          • threat
            • 3.Qb4#
            • 3.Qb3#
          • 2...Kxb5
            • 3.Qc6#

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).