Problem Display
PID: 163822 (5nK1/4RP2/2p1bp2/R1p1k2P/1b3n2/1P1Q1p2/5P1B/8 w - - 0 1)

Fomichev, Evgeny Vasilevich

Sp. Prize, StrateGems, 2014

5nK1/4RP2/2p1bp2/R1p1k2P/1b3n2/1P1Q1p2/5P1B/8

#3

9 + 9


145 StrateGems 2015

SOLUTION


  • SOUND
  • Sets
    • 1...Be1
      • 2.Rxc5#
    • 1...Bd2
      • 2.Rxc5#
    • 1...Bc3
      • 2.Rxc5#
  • Tries
    • 1.Qe4+?
      • 1...Kd6
        • 2.Kxf8
          • threat
            • 3.Bxf4#
            • 3.Qxe6#
        • 2.Qxf4+
          • 2...Kd5
            • 3.Qc4#
          • 2...Kxe7
            • 3.Qd6#
      • 1...Kxe4!
    • 1.Qe3+?
      • 1...Kd6
        • 2.Qxf4+
          • 2...Kd5
            • 3.Qc4#
          • 2...Kxe7
            • 3.Qd6#
      • 1...Kd5!
    • 1.Qd4+?
      • 1...Kf5
        • 2.Qxf4#
      • 1...Kxd4!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qxf4+
          • 2...Kd5
            • 3.Qc4#
      • 1...Kd6
        • 2.Qxf4+
          • 2...Kd5
            • 3.Qc4#
          • 2...Kxe7
            • 3.Qd6#
      • 1...Bd2
        • 2.Qxc5+
          • 2...Ke4
            • 3.Qc4#
      • 1...Sg6
        • 2.Qxe6+
          • 2...Kd4
            • 3.Qc4#
      • 1...f5
        • 2.Qxf4+
          • 2...Kd5
            • 3.Qe5#
            • 3.Qc4#
          • 2...Kf6
            • 3.Qh4#

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).