Problem Display
PID: 173225 (Q2B4/1K6/8/8/8/Np6/b7/k7 w - - 0 1)

Howard, David M

3rd Prize, Problem Observer, 1997-1998

Q2B4/1K6/8/8/8/Np6/b7/k7

#3

4 + 3


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Sets
    • 1...Bb1
      • 2.Bf6+
        • 2...Ka2
          • 3.Sc2#
          • 3.Sc4#
          • 3.Sb5#
        • 2...b2
          • 3.Sc2#
  • Tries
    • 1.Kc7?
      • 1...Bb1
        • 2.Bf6+
          • 2...Ka2
            • 3.Sc2#
            • 3.Sc4#
            • 3.Sb5#
          • 2...b2
            • 3.Sc2#
      • 1...b2
        • 2.Qh1+
          • 2...Bb1
            • 3.Qxb1#
          • 2...b1Q
            • 3.Bf6#
          • 2...b1S
            • 3.Bf6#
          • 2...b1B
            • 3.Bf6#
            • 3.Qh8#
          • 2...b1R
            • 3.Bf6#
      • 1...Kb2!
    • 1.Kc8?
      • 1...Bb1
        • 2.Bf6+
          • 2...Ka2
            • 3.Sc2#
            • 3.Sc4#
            • 3.Sb5#
          • 2...b2
            • 3.Sc2#
      • 1...b2
        • 2.Qh1+
          • 2...Bb1
            • 3.Qxb1#
          • 2...b1Q
            • 3.Bf6#
          • 2...b1S
            • 3.Bf6#
          • 2...b1B
            • 3.Bf6#
            • 3.Qh8#
          • 2...b1R
            • 3.Bf6#
      • 1...Kb2!
    • 1.Qa5?
      • 1...Kb2
        • 2.Bf6+
          • 2...Kc1
            • 3.Qe1#
      • 1...Bb1
        • 2.Bf6+
          • 2...Ka2
            • 3.Sc2#
            • 3.Sc4#
            • 3.Sb5#
          • 2...b2
            • 3.Sc2#
      • 1...b2!
    • 1.Qa7?
      • 1...Kb2
        • 2.Qd4+
          • 2...Kc1
            • 3.Bg5#
          • 2...Kxa3
            • 3.Be7#
      • 1...Bb1
        • 2.Bf6+
          • 2...Ka2
            • 3.Sc2#
            • 3.Sc4#
            • 3.Sb5#
          • 2...b2
            • 3.Sc2#
      • 1...b2!
  • Keys
    • 1.Qa4!
      • 1...Kb2
        • 2.Qd4+
          • 2...Kc1
            • 3.Bg5#
          • 2...Kxa3
            • 3.Be7#
      • 1...Bb1
        • 2.Bf6+
          • 2...Ka2
            • 3.Sc2#
            • 3.Sc4#
            • 3.Sb5#
          • 2...b2
            • 3.Sc2#
      • 1...b2
        • 2.Sb1
          • 2...Kxb1
            • 3.Qd1#

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).