Problem Display
PID: 8789 (1B5k/4p1n1/4B3/4QpN1/2p2p2/n4p2/3p1K2/3b4 w - - 0 1)

Akerblom, Johan Axel

1st Prize, Praca, 1962

1B5k/4p1n1/4B3/4QpN1/2p2p2/n4p2/3p1K2/3b4

#3

5 + 10


SOLUTION


  • SOUND
  • Tries
    • 1.Qd4?
      • threat
        • 2.Be5
          • threat
            • 3.Bxg7#
            • 3.Qd8#
        • 2.Qd8+
          • 2...Se8
            • 3.Be5#
      • 1...Bc2
        • 2.Qd8+
          • 2...Se8
            • 3.Be5#
      • 1...Be2
        • 2.Qd8+
          • 2...Se8
            • 3.Be5#
      • 1...Bb3
        • 2.Qd8+
          • 2...Se8
            • 3.Be5#
      • 1...Sc2
        • 2.Qd8+
          • 2...Se8
            • 3.Be5#
      • 1...Sb5
        • 2.Qd8+
          • 2...Se8
            • 3.Be5#
      • 1...Ba4!
    • 1.Qxf5?
      • threat
        • 2.Qh7#
        • 2.Qf8#
      • 1...Sxe6
        • 2.Qh7#
      • 1...Bc2
        • 2.Qf8#
      • 1...Sxf5!
  • Keys
    • 1.Qa1!
      • 1...Bc2
        • 2.Qh1+
          • 2...Sh5
            • 3.Be5#
      • 1...Be2
        • 2.Qh1+
          • 2...Sh5
            • 3.Be5#
      • 1...Bb3
        • 2.Qh1+
          • 2...Sh5
            • 3.Be5#
      • 1...Ba4
        • 2.Qh1+
          • 2...Sh5
            • 3.Be5#
      • 1...Sb1
        • 2.Be5
          • threat
            • 3.Bxg7#
            • 3.Qa8#
      • 1...Sc2
        • 2.Qa8
          • threat
            • 3.Be5#
      • 1...Sb5
        • 2.Be5
          • threat
            • 3.Bxg7#
            • 3.Qa8#
      • 1...c3
        • 2.Be5
          • 2...Bc2
            • 3.Qh1#
          • 2...Be2
            • 3.Qh1#
          • 2...Bb3
            • 3.Qh1#
          • 2...Ba4
            • 3.Qh1#
          • 2...Sb1
            • 3.Qa8#
          • 2...Sc2
            • 3.Qa8#
          • 2...Sc4
            • 3.Qa8#
          • 2...Sb5
            • 3.Qa8#
          • 2...c2
            • 3.Bxg7#

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).