Problem Display
PID: 163940 (qb1r1r2/nBB1NR2/3Qpnp1/3Pp2p/7p/1p3k2/3K1N2/5R1b w - - 0 1)

Aleksandrov, Vladimir Aleksandrovich

Best Problems, 2014

qb1r1r2/nBB1NR2/3Qpnp1/3Pp2p/7p/1p3k2/3K1N2/5R1b

#3

9 + 14


SOLUTION


  • SOUND
  • Sets
    • 1...Kf4
      • 2.Qxe5+
        • 2...Kf3
          • 3.Qe4#
    • 1...b2
      • 2.Qa3+
        • 2...Kg2
          • 3.Qh3#
        • 2...Kf4
          • 3.Qe3#
  • Tries
    • 1.Se4+?
      • 1...Kxe4
        • 2.Qb4#
        • 2.Qxe5#
      • 1...Kg4
        • 2.Qxe6#
      • 1...Kg2!
  • Keys
    • 1.Qxe6!
      • threat
        • 2.Qh3+
          • 2...Kf4
            • 3.Qe3#
      • 1...Rxd5+
        • 2.Qxd5+
          • 2...Kg3
            • 3.Qxe5#
          • 2...Kf4
            • 3.Qxe5#
          • 2...e4
            • 3.Qxe4#
      • 1...Kg3
        • 2.Qh3+
          • 2...Kf4
            • 3.Qe3#
      • 1...Kf4
        • 2.Qxe5+
          • 2...Kf3
            • 3.Qe4#
      • 1...Bg2
        • 2.Qxf6+
          • 2...Kg3
            • 3.Qxe5#
      • 1...h3
        • 2.Qxh3+
          • 2...Kf4
            • 3.Qe3#
      • 1...g5
        • 2.Qh3+
          • 2...Kf4
            • 3.Sg6#
            • 3.Qe3#

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).