Problem Display
PID: 116427 (8/6p1/8/8/1Q2N3/8/4p2K/5k1n w - - 0 1)

Hoffmann, Martin Wolfgang

Neue Zurcher Nachrichten, 1972

8/6p1/8/8/1Q2N3/8/4p2K/5k1n

#3

3 + 4


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Sets
    • 1...Sf2
      • 2.Sg3#
    • 1...e1B
      • 2.Qc4#
      • 2.Qb5#
  • Tries
    • 1.Qd2?
      • threat
        • 2.Qf4+
          • 2...Ke1
            • 3.Qc1#
          • 2...Sf2
            • 3.Qxf2#
      • 1...e1S
        • 2.Kxh1
          • threat
            • 3.Sg3#
            • 3.Qf2#
        • 2.Qf2+
          • 2...Sxf2
            • 3.Sg3#
      • 1...Sg3
        • 2.Sxg3+
          • 2...Kf2
            • 3.Qxe2#
        • 2.Qf4+
          • 2...Ke1
            • 3.Qc1#
      • 1...g5!
    • 1.Qc5?
      • threat
        • 2.Qg1#
      • 1...e1S
        • 2.Qf2+
          • 2...Sxf2
            • 3.Sg3#
      • 1...e1R
        • 2.Qf2+
          • 2...Sxf2
            • 3.Sg3#
      • 1...e1Q!
    • 1.Qf8+?
      • 1...Sf2
        • 2.Qxf2#
      • 1...Ke1!
    • 1.Qd4?
      • threat
        • 2.Qg1#
      • 1...e1S
        • 2.Qf2+
          • 2...Sxf2
            • 3.Sg3#
      • 1...e1R
        • 2.Qf2+
          • 2...Sxf2
            • 3.Sg3#
      • 1...e1Q!
    • 1.Qb6?
      • threat
        • 2.Qg1#
      • 1...e1S
        • 2.Qf2+
          • 2...Sxf2
            • 3.Sg3#
      • 1...e1R
        • 2.Qf2+
          • 2...Sxf2
            • 3.Sg3#
      • 1...e1Q!
  • Keys
    • 1.Qb2!
      • 1...e1S
        • 2.Qf2+
          • 2...Sxf2
            • 3.Sg3#
      • 1...Sf2
        • 2.Sg3+
          • 2...Ke1
            • 3.Qxe2#
      • 1...Sg3
        • 2.Sxg3+
          • 2...Ke1
            • 3.Qxe2#
          • 2...Kf2
            • 3.Qxe2#
      • 1...g5
        • 2.Qf6+
          • 2...Ke1
            • 3.Qa1#
          • 2...Sf2
            • 3.Qxf2#
      • 1...g6
        • 2.Qf6+
          • 2...Ke1
            • 3.Qa1#
          • 2...Sf2
            • 3.Qxf2#

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).