Problem Display
PID: 156533 (6rB/5Rr1/B2PP1p1/3R4/1Pp1kN2/4n2P/p1n1Q2P/1N2b1K1 w - - 0 1)

Fomichev, Evgeny Vasilevich

2nd Prize, Olympic Ty., 2016

6rB/5Rr1/B2PP1p1/3R4/1Pp1kN2/4n2P/p1n1Q2P/1N2b1K1

#3

13 + 9


145 StrateGems 2016

SOLUTION


  • SOUND
  • Sets
    • 1...Bd2
      • 2.Sxd2#
    • 1...Bf2+
      • 2.Kxf2
        • threat
          • 3.Sd2#
          • 3.Sc3#
          • 3.Qf3#
    • 1...Bc3
      • 2.Sxc3#
    • 1...Bg3
      • 2.Sd2#
      • 2.Sc3#
    • 1...Bh4
      • 2.Sd2#
      • 2.Sc3#
    • 1...c3
      • 2.Bd3#
  • Tries
    • 1.Qxc4+?
      • 1...Kf3
        • 2.Qe2+
          • 2...Ke4
            • 3.Bd3#
      • 1...Sd4
        • 2.Rxd4+
          • 2...Kf3
            • 3.Qe2#
          • 2...Ke5
            • 3.Sd3#
            • 3.Sxg6#
        • 2.Qxd4+
          • 2...Kf3
            • 3.Be2#
      • 1...Sxc4!
    • 1.Qxc2+?
      • 1...Kf3
        • 2.Re5
          • threat
            • 3.Qe4#
            • 3.Qe2#
          • 2...Bf2+
            • 3.Qxf2#
          • 2...Sxc2
            • 3.Bb7#
      • 1...Sxc2!
  • Keys
    • 1.Bb7!
      • threat
        • 2.Qf3+
          • 2...Kxf3
            • 3.Rd3#
      • 1...Bf2+
        • 2.Kxf2
          • threat
            • 3.Sd2#
            • 3.Sc3#
            • 3.Qf3#
      • 1...Rxf7
        • 2.Re5+
          • 2...Kd4
            • 3.Re4#
          • 2...Kxf4
            • 3.Qf3#
      • 1...Sxb4
        • 2.Rd3+
          • 2...Ke5
            • 3.Qxe3#
          • 2...Sd5
            • 3.Qxe3#
          • 2...Sc6
            • 3.Qxe3#
      • 1...Rb8
        • 2.Rd4+
          • 2...Kxd4
            • 3.Bxg7#
          • 2...Ke5
            • 3.Bxg7#
      • 1...Rc8
        • 2.Rd4+
          • 2...Kxd4
            • 3.Bxg7#
          • 2...Ke5
            • 3.Bxg7#
      • 1...Sd4
        • 2.Qxe3+
          • 2...Kxe3
            • 3.Re5#

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).