Problem Display
PID: 180918 (3K4/1p6/8/1p1P4/kp3p1B/5Q2/8/8 w - - 0 1)

Howard, David M

Problem Observer, 2013

3K4/1p6/8/1p1P4/kp3p1B/5Q2/8/8

#3

4 + 5


SOLUTION


  • SOUND
  • Tries
    • 1.Qb3+?
      • 1...Ka5
        • 2.Kc7
          • threat
            • 3.Qa2#
          • 2...Ka6
            • 3.Qa2#
        • 2.Bf2
          • threat
            • 3.Qa2#
          • 2...Ka6
            • 3.Qa2#
        • 2.Qa2+
          • 2...Kb6
            • 3.Bf2#
      • 1...Kxb3!
  • Keys
    • 1.Be1!
      • 1...Ka5
        • 2.Qa3+
          • 2...Kb6
            • 3.Bf2#
      • 1...b3
        • 2.Qc3
          • threat
            • 3.Qa1#
            • 3.Qb4#
            • 3.Qa5#
          • 2...Ka3
            • 3.Qa1#
          • 2...b4
            • 3.Qxb4#
      • 1...b6
        • 2.d6
          • 2...Ka5
            • 3.Qa8#
            • 3.Qa3#
          • 2...b3
            • 3.Qa8#

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).