Problem Display
PID: 247142 (8/5Q2/N2k1pK1/2pp1p2/1N1P4/6p1/8/4q3 w - - 0 1)

Drazkowski, Krzysztof

US Problem Bulletin, 1990

8/5Q2/N2k1pK1/2pp1p2/1N1P4/6p1/8/4q3

#2

5 + 7


SOLUTION


  • COOKED
  • Sets
    • 1...Qe5
      • 2.dxc5#
    • 1...Qe6
      • 2.Qc7#
    • 1...Qe7
      • 2.Qxd5#
  • Tries
    • 1.Sxc5?
      • threat
        • 2.Sb7#
        • 2.Qd7#
      • 1...Qxb4
        • 2.Qd7#
      • 1...Qe6
        • 2.Sb7#
      • 1...Qe8
        • 2.Sb7#
      • 1...Qe7!
  • Keys
    • 1.Kxf6!
      • threat
        • 2.Qxd5#
        • 2.Qc7#
        • 2.dxc5#
      • 1...Qe5+
        • 2.dxe5#
      • 1...Qe6+
        • 2.Qxe6#
      • 1...Qe7+
        • 2.Qxe7#
      • 1...Qxb4
        • 2.Qe6#
        • 2.Qc7#
      • 1...cxb4
        • 2.Qc7#
      • 1...cxd4
        • 2.Qxd5#
        • 2.Qc7#
      • 1...Qf2
        • 2.Qxd5#
        • 2.Qe6#
        • 2.Qc7#
        • 2.Qe7#
      • 1...Qc3
        • 2.Qxd5#
        • 2.Qe6#
        • 2.Qc7#
        • 2.Qe7#
      • 1...Qa1
        • 2.Qxd5#
        • 2.Qe6#
        • 2.Qc7#
        • 2.Qe7#
      • 1...Qc1
        • 2.Qxd5#
        • 2.Qe6#
        • 2.Qc7#
        • 2.Qe7#
      • 1...Qg1
        • 2.Qxd5#
        • 2.Qe6#
        • 2.Qc7#
        • 2.Qe7#
      • 1...Qh1
        • 2.Qe6#
        • 2.Qc7#
        • 2.Qe7#
        • 2.dxc5#
      • 1...Qe3
        • 2.Qxd5#
        • 2.Qc7#
      • 1...Qe4
        • 2.Qc7#
        • 2.dxc5#
      • 1...c4
        • 2.Qxd5#
        • 2.Qc7#
    • 1.Qc7+!
      • 1...Ke6
        • 2.Sxc5#

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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).