Problem Display
PID: 26480 (8/8/1p5Q/1k6/3P4/P1K5/8/8 w - - 0 1)

Williams, Philip Hamilton

Source?, 0000

8/8/1p5Q/1k6/3P4/P1K5/8/8

#3

4 + 2


SOLUTION


  • SOUND
  • Sets
    • 1...Ka4
      • 2.Qxb6
        • 2...Kxa3
          • 3.Qa5#
          • 3.Qa7#
          • 3.Qb3#
          • 3.Qa6#
  • Tries
    • 1.Qf8?
      • 1...Ka5
        • 2.Qa8+
          • 2...Kb5
            • 3.a4#
      • 1...Ka6
        • 2.Qa8+
          • 2...Kb5
            • 3.a4#
      • 1...Kc6!
    • 1.Qxb6+?
      • 1...Ka4
        • 2.Qb4#
        • 2.Qa6#
      • 1...Kxb6!
    • 1.Qc6+?
      • 1...Ka5
        • 2.Kc4
          • threat
            • 3.Qb5#
            • 3.Qa8#
          • 2...b5+
            • 3.Qxb5#
          • 2...Ka6
            • 3.Qa8#
        • 2.Qa8+
          • 2...Kb5
            • 3.a4#
        • 2.a4
          • threat
            • 3.Qb5#
            • 3.Qa8#
          • 2...Ka6
            • 3.Qa8#
          • 2...b5
            • 3.Qxb5#
      • 1...Ka6
        • 2.Qa8+
          • 2...Kb5
            • 3.a4#
      • 1...Kxc6!
    • 1.Qh8?
      • 1...Ka4
        • 2.Qa8+
          • 2...Kb5
            • 3.a4#
      • 1...Ka5
        • 2.Qa8+
          • 2...Kb5
            • 3.a4#
      • 1...Ka6
        • 2.Qa8+
          • 2...Kb5
            • 3.a4#
      • 1...Kc6!
    • 1.a4+?
      • 1...Kxa4
        • 2.Qxb6
          • 2...Ka3
            • 3.Qa5#
            • 3.Qa7#
            • 3.Qb3#
            • 3.Qa6#
      • 1...Ka5
        • 2.Qc6
          • threat
            • 3.Qb5#
            • 3.Qa8#
          • 2...Ka6
            • 3.Qa8#
          • 2...b5
            • 3.Qxb5#
      • 1...Ka6!
  • Keys
    • 1.Qh1!
      • 1...Ka4
        • 2.Qd5
          • 2...Kxa3
            • 3.Qb3#
            • 3.Qa8#
          • 2...b5
            • 3.Qa8#
        • 2.Qa8+
          • 2...Kb5
            • 3.a4#
      • 1...Ka5
        • 2.Qa8+
          • 2...Kb5
            • 3.a4#
      • 1...Ka6
        • 2.Qa8+
          • 2...Kb5
            • 3.a4#

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).