Problem Display
PID: 266583 (1B1bN3/2np3B/b1PP1P1K/1p4Q1/1pPk4/1P3pP1/3pp1n1/3RN3 w - - 0 1)

Stojanovic, Borislav (aka Bota)

The Problemist, 1997

1B1bN3/2np3B/b1PP1P1K/1p4Q1/1pPk4/1P3pP1/3pp1n1/3RN3

#3

13 + 11


SOLUTION


  • SOUND
  • Sets
    • 1...Sxe1
      • 2.Qe3+
        • 2...Kxe3
          • 3.Ba7#
    • 1...Se3
      • 2.Rxd2+
        • 2...Kc3
          • 3.Qxe3#
      • 2.Qxe3+
        • 2...Kxe3
          • 3.Ba7#
    • 1...Sh4
      • 2.Rxd2+
        • 2...Kc3
          • 3.Qe3#
      • 2.Qe3+
        • 2...Kxe3
          • 3.Ba7#
    • 1...Se6
      • 2.Qe5+
        • 2...Kxe5
          • 3.Sxf3#
  • Tries
    • 1.Qxd2+?
      • 1...Ke5
        • 2.Qg5+
          • 2...Ke6
            • 3.Bg8#
      • 1...Kc5!
    • 1.Qe3+?
      • 1...Kxe3
        • 2.Ba7#
      • 1...Sxe3!
  • Keys
    • 1.Bc2!
      • threat
        • 2.Ba7+
          • 2...Kc3
            • 3.Qe5#
      • 1...Bxf6
        • 2.Ba7+
          • 2...Kc3
            • 3.Qxf6#
      • 1...Sxe1
        • 2.Qe3+
          • 2...Kxe3
            • 3.Ba7#
      • 1...Sxe8
        • 2.Qd5+
          • 2...Kc3
            • 3.Qe5#
          • 2...Ke3
            • 3.Qc5#
      • 1...dxc6
        • 2.Qc5+
          • 2...Kc3
            • 3.Qe5#
          • 2...Kxc5
            • 3.Ba7#
      • 1...Sd5
        • 2.Qxd5+
          • 2...Kc3
            • 3.Qe5#
          • 2...Ke3
            • 3.Qc5#
      • 1...Se6
        • 2.Qe5+
          • 2...Kxe5
            • 3.Sxf3#
      • 1...Sa8
        • 2.Qd5+
          • 2...Kc3
            • 3.Qe5#
          • 2...Ke3
            • 3.Qc5#

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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).