Problem Display
PID: 138730 (1R3B1q/p2p2P1/2pPpPp1/K2k1bQn/P3p3/PP1NP3/n3R3/6bB w - - 0 1)

Sigurov, Aleksandr Ilich

1st Prize, Birnov MT, 2008

1R3B1q/p2p2P1/2pPpPp1/K2k1bQn/P3p3/PP1NP3/n3R3/6bB

#3

14 + 12


145 StrateGems 2010

SOLUTION


  • SOUND
  • Tries
    • 1.Rb5+?
      • 1...c5
        • 2.Rxc5#
      • 1...cxb5!
  • Keys
    • 1.Rd2!
      • threat
        • 2.Sf2+
          • 2...Kc5
            • 3.Sxe4#
          • 2...Ke5
            • 3.Sg4#
      • 1...Bxe3
        • 2.Qxe3
          • threat
            • 3.Qc5#
          • 2...c5
            • 3.Qxc5#
          • 2...e5
            • 3.Sf4#
            • 3.Sc5#
      • 1...Sxf6
        • 2.Sb4+
          • 2...Kc5
            • 3.Sa6#
          • 2...Ke5
            • 3.Qf4#
            • 3.Qg3#
      • 1...c5
        • 2.Sxc5+
          • 2...Kxc5
            • 3.Rc8#
          • 2...Ke5
            • 3.Sxd7#
          • 2...Kc6
            • 3.Rc8#
      • 1...e5
        • 2.Sxe5+
          • 2...Kc5
            • 3.Sxd7#
          • 2...Kxe5
            • 3.Re8#
          • 2...Ke6
            • 3.Re8#
      • 1...Bf2
        • 2.Sxf2+
          • 2...Kc5
            • 3.Sxe4#
          • 2...Ke5
            • 3.Sg4#
      • 1...Sc1
        • 2.Sf4+
          • 2...Kc5
            • 3.Rc2#
          • 2...Ke5
            • 3.Sxg6#
      • 1...Sc3
        • 2.Sb2+
          • 2...Kc5
            • 3.b4#
          • 2...Ke5
            • 3.Sc4#
      • 1...Sb4
        • 2.Sf4+
          • 2...Kc5
            • 3.axb4#
          • 2...Ke5
            • 3.Sxg6#
      • 1...Sg3
        • 2.Qf4
          • threat
            • 3.Qe5#
          • 2...c5
            • 3.Sb4#
            • 3.Se5#
          • 2...e5
            • 3.Qxe5#
      • 1...Sf4
        • 2.Sb4+
          • 2...Kc5
            • 3.Sa6#
          • 2...Ke5
            • 3.exf4#

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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).