Problem Display
PID: 34490 (4K2B/8/1N1PP1p1/R2PPb1p/1p1Nkn2/8/3QB1rb/3n1r2 w - - 0 1)

Postnikov, Oleksandr Borisovich

The Problemist, 1993

4K2B/8/1N1PP1p1/R2PPb1p/1p1Nkn2/8/3QB1rb/3n1r2

#4

11 + 10


3681 FIDE Album (1992-1994) 2001

SOLUTION


  • SOUND
  • Keys
    • 1.Sd7!
      • threat
        • 2.Sc5+
          • 2...Kxd5
            • 3.Sd7+
              • 3...Ke4
                • 4.Sf6#
      • 1...Rxe2
        • 2.Sc5+
          • 2...Kxd5
            • 3.Sd7+
              • 3...Kc4
                • 4.Sb6#
                • 4.Rc5#
              • 3...Ke4
                • 4.Sf6#
      • 1...Sxe2
        • 2.Sc5+
          • 2...Kxd5
            • 3.Sd7+
              • 3...Kc4
                • 4.Sb6#
                • 4.Rc5#
              • 3...Ke4
                • 4.Sf6#
      • 1...Sxe6
        • 2.Sf6+
          • 2...Kxe5
            • 3.Sd7+
              • 3...Ke4
                • 4.Bd3#
              • 3...Kxd6
                • 4.Sb5#
      • 1...Sd3
        • 2.Bxd3+
          • 2...Kxd4
            • 3.Be2+
              • 3...Ke4
                • 4.Sc5#
              • 3...Bd3
                • 4.Qxd3#
      • 1...Sc3
        • 2.Sf6+
          • 2...Kxe5
            • 3.Sg4+
              • 3...Ke4
                • 4.Qe3#
              • 3...Kxd6
                • 4.Be5#
      • 1...Sh3
        • 2.Sc5+
          • 2...Kxd5
            • 3.Scb3+
              • 3...Ke4
                • 4.Bd3#
            • 3.Sd7+
              • 3...Ke4
                • 4.Sf6#
        • 2.Sf6+
          • 2...Kxe5
            • 3.Se4+
              • 3...Kxe4
                • 4.Bd3#
            • 3.Sd7+
              • 3...Ke4
                • 4.Bd3#
              • 3...Kxd6
                • 4.Sb5#
        • 2.Bd3+
          • 2...Kxd4
            • 3.Be2+
              • 3...Ke4
                • 4.Sc5#
              • 3...Bd3
                • 4.Qxd3#

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).