Problem Display
PID: 1199 (7B/8/2B5/8/1p2pp2/kb5Q/7K/8 w - - 0 1)

Turnbull, Ronald

The Problemist Supplement, 1996

7B/8/2B5/8/1p2pp2/kb5Q/7K/8

#3

4 + 5


SOLUTION


  • SOUND
  • Tries
    • 1.Qc3?
      • threat
        • 2.Qb2#
      • 1...Ka2
        • 2.Qa1#
        • 2.Qb2#
      • 1...bxc3!
    • 1.Qd3?
      • threat
        • 2.Qb1
          • threat
            • 3.Bb2#
            • 3.Qb2#
        • 2.Qa6+
          • 2...Ba4
            • 3.Qxa4#
        • 2.Qd4
          • threat
            • 3.Qb2#
          • 2...Ka2
            • 3.Qa1#
            • 3.Qb2#
      • 1...Ka2
        • 2.Qd4
          • threat
            • 3.Qa1#
            • 3.Qb2#
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka3
            • 3.Qb2#
      • 1...exd3!
    • 1.Qe3?
      • threat
        • 2.Qc1+
          • 2...Ka2
            • 3.Qb2#
            • 3.Qa1#
        • 2.Qd4
          • threat
            • 3.Qb2#
          • 2...Ka2
            • 3.Qa1#
            • 3.Qb2#
        • 2.Qa7+
          • 2...Ba4
            • 3.Qxa4#
      • 1...Ka2
        • 2.Qc1
          • threat
            • 3.Qb2#
            • 3.Qa1#
        • 2.Qd4
          • threat
            • 3.Qa1#
            • 3.Qb2#
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka3
            • 3.Qb2#
      • 1...fxe3!
    • 1.Qg3?
      • threat
        • 2.Qg7
          • threat
            • 3.Qb2#
          • 2...Ka2
            • 3.Qa1#
            • 3.Qb2#
      • 1...Ka2
        • 2.Qg7
          • threat
            • 3.Qa1#
            • 3.Qb2#
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka3
            • 3.Qb2#
      • 1...fxg3+!
  • Keys
    • 1.Ba1!
      • threat
        • 2.Qh8
          • threat
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
      • 1...Ka2
        • 2.Qh8
          • threat
            • 3.Qb2#
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka3
            • 3.Qb2#

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).