Problem Display
PID: 28551 (2n5/8/8/3Q4/8/5pr1/2K1R3/7k w - - 0 1)

Speckmann, Werner

1st Prize, Deutsche Schachzeitung, 1961

2n5/8/8/3Q4/8/5pr1/2K1R3/7k

#3

3 + 4


13255 Hoekstenen 1967
3485 Sachova skladba 1985

SOLUTION


  • SOUND
  • Sets
    • 1...Kg1
      • 2.Qd1#
    • 1...Rg1
      • 2.Qh5#
    • 1...Rg2
      • 2.Qxf3
        • threat
          • 3.Qxg2#
        • 2...Kg1
          • 3.Qxg2#
        • 2...Kh2
          • 3.Qxg2#
    • 1...Rh3
      • 2.Qd1#
  • Tries
    • 1.Qxf3+?
      • 1...Kg1
        • 2.Re1+
          • 2...Kh2
            • 3.Rh1#
            • 3.Qh1#
        • 2.Qf2+
          • 2...Kh1
            • 3.Qh2#
        • 2.Qxg3+
          • 2...Kf1
            • 3.Re1#
            • 3.Qe1#
            • 3.Qf2#
            • 3.Qg2#
          • 2...Kh1
            • 3.Re1#
            • 3.Rh2#
            • 3.Qe1#
            • 3.Qh2#
            • 3.Qg2#
      • 1...Rxf3!
    • 1.Qh5+?
      • 1...Kg1
        • 2.Qh2+
          • 2...Kf1
            • 3.Qf2#
      • 1...Rh3!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qa1+
          • 2...Rg1
            • 3.Qh8#
      • 1...Rg2
        • 2.Qxf3
          • threat
            • 3.Qxg2#
          • 2...Kg1
            • 3.Qxg2#
          • 2...Kh2
            • 3.Qxg2#
      • 1...Rg4
        • 2.Qa1+
          • 2...Rg1
            • 3.Qh8#
      • 1...Rg1
        • 2.Qxf3+
          • 2...Rg2
            • 3.Qxg2#
      • 1...Rg5
        • 2.Qa1+
          • 2...Rg1
            • 3.Qh8#
      • 1...Rg6
        • 2.Qa1+
          • 2...Rg1
            • 3.Qh8#
      • 1...Rg7
        • 2.Qa1+
          • 2...Rg1
            • 3.Qh8#
      • 1...Rg8
        • 2.Qa1+
          • 2...Rg1
            • 3.Qh8#
      • 1...Sa7
        • 2.Qh8+
          • 2...Kg1
            • 3.Qa1#
          • 2...Rh3
            • 3.Qa1#

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).