Problem Display
PID: 29341 (1b3r2/7p/5ppK/2p1p3/p7/8/3k4/N4QB1 w - - 0 1)

Hage, Poul

3rd HM., Tidskrift for Schack, 1961

1b3r2/7p/5ppK/2p1p3/p7/8/3k4/N4QB1

#3

4 + 9


SOLUTION


  • SOUND
  • Sets
    • 1...Kc3
      • 2.Qc1+
        • 2...Kd3
          • 3.Qc2#
        • 2...Kb4
          • 3.Qxc5#
  • Tries
    • 1.Qe2+?
      • 1...Kc3
        • 2.Bxc5
          • threat
            • 3.Qc2#
        • 2.Qc2+
          • 2...Kb4
            • 3.Qxc5#
      • 1...Kxe2!
    • 1.Qd3+?
      • 1...Kc1
        • 2.Qc2#
      • 1...Ke1
        • 2.Sc2#
      • 1...Kxd3!
    • 1.Qc4?
      • threat
        • 2.Bf2
          • threat
            • 3.Qc2#
          • 2...Kd1
            • 3.Qc2#
      • 1...Kd1
        • 2.Bf2
          • threat
            • 3.Qc2#
          • 2...Kd2
            • 3.Qc2#
        • 2.Qd3+
          • 2...Kc1
            • 3.Qc2#
          • 2...Ke1
            • 3.Sc2#
      • 1...Ke1
        • 2.Qd3
          • threat
            • 3.Sc2#
      • 1...e4!
    • 1.Qd1+?
      • 1...Kc3
        • 2.Qc2+
          • 2...Kb4
            • 3.Qxc5#
        • 2.Qc1+
          • 2...Kd3
            • 3.Qc2#
          • 2...Kb4
            • 3.Qxc5#
      • 1...Kxd1!
    • 1.Qf2+?
      • 1...Kc3
        • 2.Qc2+
          • 2...Kb4
            • 3.Qxc5#
      • 1...Kd1!
  • Keys
    • 1.Bf2!
      • threat
        • 2.Qc4
          • threat
            • 3.Qc2#
          • 2...Kd1
            • 3.Qc2#
      • 1...Kc3
        • 2.Qc1+
          • 2...Kd3
            • 3.Qc2#
          • 2...Kb4
            • 3.Qxc5#
      • 1...c4
        • 2.Qe1+
          • 2...Kd3
            • 3.Qe3#
      • 1...e4
        • 2.Be1+
          • 2...Kc1
            • 3.Bc3#
          • 2...Kd1
            • 3.Bc3#
            • 3.Bb4#
            • 3.Ba5#
          • 2...Ke3
            • 3.Sc2#

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).