Problem Display
PID: 75247 (3R1b2/r3p2K/4n1NP/2p1B1p1/2P1kNB1/2q1p1rP/2Ppn1P1/1b1Q4 w - - 0 1)

Makaronets, Leonid

Shifrin, Semion

1st Prize, StrateGems, 2007

3R1b2/r3p2K/4n1NP/2p1B1p1/2P1kNB1/2q1p1rP/2Ppn1P1/1b1Q4

#3

12 + 13


145 StrateGems 2008

SOLUTION


  • SOUND
  • Sets
    • 1...Rf3
      • 2.gxf3#
    • 1...Sc1
      • 2.Qf3+
        • 2...Rxf3
          • 3.gxf3#
    • 1...S2xf4
      • 2.Qf3+
        • 2...Rxf3
          • 3.gxf3#
  • Tries
    • 1.Sxe2?
      • threat
        • 2.Sxc3#
        • 2.Sxg3#
      • 1...Rxg4
        • 2.Sxc3+
          • 2...Kf5
            • 3.Qxg4#
            • 3.hxg4#
      • 1...Qxe5!
    • 1.Sxe6?
      • threat
        • 2.Sxc5#
        • 2.Sxg5#
      • 1...Rxg4
        • 2.Sxc5+
          • 2...Kf5
            • 3.Rxf8#
      • 1...Qxe5!
  • Keys
    • 1.Qf1!
      • threat
        • 2.Qf3+
          • 2...Rxf3
            • 3.gxf3#
      • 1...Rxh3
        • 2.Qf3+
          • 2...Rxf3
            • 3.gxf3#
      • 1...Rxg4
        • 2.Qf3+
          • 2...Kf5
            • 3.hxg4#
      • 1...Sg1
        • 2.Sd5
          • threat
            • 3.Sxc3#
            • 3.Bf5#
            • 3.Qf5#
          • 2...Qxe5
            • 3.Qd3#
      • 1...S2d4
        • 2.Se2
          • threat
            • 3.Sxc3#
            • 3.Sxg3#
          • 2...Sxe2
            • 3.Bf5#
            • 3.Qf5#
      • 1...S6d4
        • 2.Se6
          • threat
            • 3.Sxc5#
            • 3.Sxg5#
          • 2...Sxe6
            • 3.Bf5#
            • 3.Qf5#

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).