Problem Display
PID: 197881 (b7/P2N2pr/Q1P5/pKpkBB1p/2p5/b7/8/8 w - - 0 1)

Poponin, Vladimir Grigorievich

Zadachi i Etyudi, 1997

b7/P2N2pr/Q1P5/pKpkBB1p/2p5/b7/8/8

#3

7 + 9


SOLUTION


  • SOUND
  • Sets
    • 1...Bxc6+
      • 2.Qxc6#
  • Tries
    • 1.Qc8?
      • threat
        • 2.Qg8#
      • 1...Rh6
        • 2.Qg8+
          • 2...Re6
            • 3.Qxe6#
      • 1...g5
        • 2.Qg8+
          • 2...Rf7
            • 3.Qxf7#
      • 1...g6
        • 2.Qg8+
          • 2...Rf7
            • 3.Qxf7#
      • 1...Rh8!
    • 1.Qxa5?
      • threat
        • 2.Qd2#
      • 1...Bc1
        • 2.Qc7
          • threat
            • 3.Sb6#
            • 3.Qd6#
          • 2...Bxc6+
            • 3.Qxc6#
      • 1...Bb2
        • 2.Qd2+
          • 2...Bd4
            • 3.Qg2#
        • 2.Qc7
          • threat
            • 3.Sb6#
            • 3.Qd6#
          • 2...Bxc6+
            • 3.Qxc6#
          • 2...Bxe5
            • 3.Qxe5#
      • 1...Bb4
        • 2.Qc7
          • threat
            • 3.Sb6#
            • 3.Qd6#
          • 2...Bxc6+
            • 3.Qxc6#
      • 1...c3
        • 2.Qc7
          • threat
            • 3.Sb6#
            • 3.Qd6#
          • 2...Bxc6+
            • 3.Qxc6#
      • 1...Bxc6+!
    • 1.c7?
      • threat
        • 2.Qd6#
        • 2.Qe6#
      • 1...Bc6+
        • 2.Qxc6#
      • 1...Rh6!
  • Keys
    • 1.Ka4!
      • threat
        • 2.Qxc4+
          • 2...Kxc4
            • 3.Sb6#
          • 2...Kxc6
            • 3.Qe4#
      • 1...Bxc6+
        • 2.Qxc6+
          • 2...Kxc6
            • 3.a8Q#
            • 3.a8B#
      • 1...Bb7
        • 2.Qxc4+
          • 2...Kxc4
            • 3.Sb6#
          • 2...Kxc6
            • 3.Qe6#
            • 3.Qe4#
      • 1...c3
        • 2.Qd3+
          • 2...Kxc6
            • 3.Be4#
            • 3.Qe4#
            • 3.Qf3#
        • 2.Qc4+
          • 2...Kxc4
            • 3.Sb6#
          • 2...Kxc6
            • 3.Qe4#

FEATURES


NOT CLASSIFIED


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).