Problem Display
PID: 135555 (8/kp2K3/1r1N1P2/p3Q3/8/8/8/8 w - - 0 1)

Shevchenko, Vitaly Ivanovich

Tsaplin, Aleksandr Borisovich

StrateGems, 2009

8/kp2K3/1r1N1P2/p3Q3/8/8/8/8

#3

4 + 4


SOLUTION


  • SOUND
  • Tries
    • 1.Qd4?
      • 1...Ka8
        • 2.Qxb6
          • threat
            • 3.Qxb7#
          • 2...Kb8
            • 3.Qxb7#
      • 1...Kb8
        • 2.Qxb6
          • threat
            • 3.Qxb7#
          • 2...Ka8
            • 3.Qxb7#
      • 1...a4
        • 2.Sb5+
          • 2...Ka6
            • 3.Qxa4#
          • 2...Ka8
            • 3.Qd8#
          • 2...Kb8
            • 3.Qd8#
      • 1...Ka6!
  • Keys
    • 1.Qxa5+!
      • 1...Kb8
        • 2.Qxb6
          • 2...Ka8
            • 3.Qxb7#
      • 1...Ra6
        • 2.Sb5+
          • 2...Ka8
            • 3.Qd8#
          • 2...Kb8
            • 3.Qd8#

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).