Problem Display
PID: 152563 (n3K3/2p5/2P1P2R/1N1kNR1r/1p1P1PPb/8/3P4/1Qn2r1b w - - 0 1)

Agapov, Igor Alexeyevich

Bakharev, Aleksandr Viktorovich

Prize, Bron-100 JT, 2009

n3K3/2p5/2P1P2R/1N1kNR1r/1p1P1PPb/8/3P4/1Qn2r1b

#3

12 + 9


145 StrateGems 2011
56 The Problemist 2013

SOLUTION


  • SOUND
  • Sets
    • 1...Be4
      • 2.Qxb4
        • threat
          • 3.Sc3#
          • 3.Qc5#
          • 3.Qc4#
  • Tries
    • 1.Sc3+?
      • 1...Kxd4
        • 2.Qxb4#
      • 1...Kd6
        • 2.Qxb4#
      • 1...bxc3!
    • 1.Qxb4?
      • threat
        • 2.Sc3#
      • 1...Rxh6
        • 2.Qc4+
          • 2...Ke4
            • 3.Sc3#
            • 3.d5#
      • 1...Bf6
        • 2.Sc3+
          • 2...Kxe6
            • 3.Rfxf6#
            • 3.Rhxf6#
            • 3.Qe7#
        • 2.Qc5+
          • 2...Ke4
            • 3.Sc3#
          • 2...Kxe6
            • 3.Rfxf6#
            • 3.Rhxf6#
        • 2.Qc4+
          • 2...Ke4
            • 3.Sc3#
            • 3.d5#
      • 1...Rf3
        • 2.Qc4+
          • 2...Ke4
            • 3.d5#
      • 1...Sa2
        • 2.Qc4+
          • 2...Ke4
            • 3.d5#
      • 1...Se2!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qc4+
          • 2...Ke4
            • 3.d5#
      • 1...Bf2
        • 2.Sg6+
          • 2...Kxe6
            • 3.Sf8#
          • 2...Rxf5
            • 3.Se7#
      • 1...Se2
        • 2.Sd3+
          • 2...Ke4
            • 3.Se1#
          • 2...Rxf5
            • 3.Sxb4#
      • 1...Sb3
        • 2.Sd3+
          • 2...Ke4
            • 3.Se1#
          • 2...Rxf5
            • 3.Sxb4#
      • 1...Sb6
        • 2.Sc4+
          • 2...Kxc6
            • 3.Sa5#
          • 2...Rxf5
            • 3.Se3#
      • 1...b3
        • 2.Qc4+
          • 2...Ke4
            • 3.Sc3#
            • 3.d5#
        • 2.Qc5+
          • 2...Ke4
            • 3.Sc3#

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).