Problem Display
PID: 238646 (8/B7/B1p5/p1p5/kpp2KpQ/6P1/5R2/8 w - - 0 1)

Christiaans, Frank

Probleemblad, 1981

8/B7/B1p5/p1p5/kpp2KpQ/6P1/5R2/8

#3

6 + 7


SOLUTION


  • SOUND
  • Tries
    • 1.Bxc4?
      • threat
        • 2.Ra2#
      • 1...Ka3
        • 2.Ra2#
      • 1...b3!
    • 1.Qh1?
      • 1...Kb3
        • 2.Qa1
          • 2...c3
            • 3.Qa2#
          • 2...a4
            • 3.Qb2#
      • 1...c3
        • 2.Ra2+
          • 2...Kb3
            • 3.Qb1#
        • 2.Qa1+
          • 2...Kb3
            • 3.Qa2#
      • 1...b3
        • 2.Bxc5
          • threat
            • 3.Qxc6#
            • 3.Qa1#
          • 2...b2
            • 3.Qd1#
      • 1...Ka3!
    • 1.Qh7?
      • threat
        • 2.Ra2+
          • 2...Kb3
            • 3.Qc2#
      • 1...Kb3
        • 2.Qc2+
          • 2...Ka3
            • 3.Qa2#
      • 1...c3
        • 2.Ra2+
          • 2...Kb3
            • 3.Qb1#
            • 3.Qc2#
      • 1...b3
        • 2.Bxc5
          • 2...b2
            • 3.Qc2#
          • 2...c3
            • 3.Qe4#
      • 1...Ka3!
  • Keys
    • 1.Qd8!
      • 1...Ka3
        • 2.Bxc4
          • threat
            • 3.Ra2#
            • 3.Qxa5#
          • 2...Ka4
            • 3.Ra2#
      • 1...Kb3
        • 2.Qd2
          • 2...Ka3
            • 3.Qa2#
          • 2...Ka4
            • 3.Qa2#
          • 2...c3
            • 3.Qa2#
          • 2...a4
            • 3.Qb2#
      • 1...c3
        • 2.Qxa5+
          • 2...Kb3
            • 3.Qa2#
          • 2...Kxa5
            • 3.Ra2#
      • 1...b3
        • 2.Bxc5
          • 2...b2
            • 3.Qd1#
          • 2...c3
            • 3.Qd4#

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).