Problem Display
PID: 197624 (8/K6N/Q7/4p3/3p4/4k3/8/5R2 w - - 0 1)

Vetter, Hans

1st HM., Deutsches Wochenschach, 1920

8/K6N/Q7/4p3/3p4/4k3/8/5R2

#3

4 + 3


6490 yacpdb 2019

SOLUTION


  • SOUND
  • Tries
    • 1.Rf2?
      • threat
        • 2.Qe2#
      • 1...Ke4
        • 2.Sf6+
          • 2...Ke3
            • 3.Qe2#
        • 2.Qc4
          • 2...Ke3
            • 3.Qe2#
      • 1...d3
        • 2.Qb6+
          • 2...Ke4
            • 3.Sf6#
      • 1...Kxf2!
    • 1.Qc4?
      • 1...Kd2
        • 2.Rf2+
          • 2...Kd1
            • 3.Qf1#
          • 2...Ke1
            • 3.Qf1#
            • 3.Qe2#
          • 2...Ke3
            • 3.Qe2#
      • 1...Ke4
        • 2.Rf2
          • 2...Ke3
            • 3.Qe2#
      • 1...e4
        • 2.Qc2
          • 2...d3
            • 3.Qf2#
      • 1...d3!
  • Keys
    • 1.Qa2!
      • 1...Kd3
        • 2.Rf3+
          • 2...Ke4
            • 3.Sg5#
      • 1...Ke4
        • 2.Sg5+
          • 2...Kd3
            • 3.Rf3#
          • 2...Ke3
            • 3.Rf3#
      • 1...d3
        • 2.Qf2+
          • 2...Ke4
            • 3.Sf6#
      • 1...e4
        • 2.Qc2
          • 2...d3
            • 3.Qf2#

FEATURES


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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).