Problem Display
PID: 89417 (8/2p2Rp1/2Q5/4kp1p/7p/1N5P/n4P2/K7 w - - 0 1)

Zimmermann, Stepan

Zlata Praha, 1890

8/2p2Rp1/2Q5/4kp1p/7p/1N5P/n4P2/K7

#3

6 + 7


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Tries
    • 1.Qd5+?
      • 1...Kf4
        • 2.Rxf5#
        • 2.Qxf5#
      • 1...Kxd5!
    • 1.Qd7?
      • threat
        • 2.Rxf5+
          • 2...Ke4
            • 3.Sd2#
            • 3.Sc5#
            • 3.Qd5#
      • 1...Sc3
        • 2.Rxf5+
          • 2...Ke4
            • 3.Sd2#
            • 3.Sc5#
      • 1...Sb4
        • 2.Rxf5+
          • 2...Ke4
            • 3.Sd2#
            • 3.Sc5#
      • 1...f4
        • 2.Rf5+
          • 2...Ke4
            • 3.Sd2#
            • 3.Qd5#
      • 1...c5
        • 2.Rxf5+
          • 2...Ke4
            • 3.Sd2#
            • 3.Sxc5#
            • 3.Qd5#
      • 1...c6
        • 2.Rxf5+
          • 2...Ke4
            • 3.Sd2#
            • 3.Sc5#
        • 2.Qxf5+
          • 2...Kd6
            • 3.Rd7#
      • 1...g6!
    • 1.Qc5+?
      • 1...Ke4
        • 2.Qxf5#
      • 1...Kf4
        • 2.Qe3#
        • 2.Qxf5#
      • 1...Ke6!
    • 1.Qe6+?
      • 1...Kf4
        • 2.Rxf5#
        • 2.Qxf5#
        • 2.Qe3#
      • 1...Kxe6!
  • Keys
    • 1.Rd7!
      • 1...Kf4
        • 2.Rd4+
          • 2...Ke5
            • 3.f4#
          • 2...Kg5
            • 3.f4#
      • 1...Sc1
        • 2.Qc3+
          • 2...Ke4
            • 3.Qe3#
          • 2...Kf4
            • 3.Qe3#
          • 2...Ke6
            • 3.Sc5#
      • 1...Sc3
        • 2.Qxc3+
          • 2...Ke4
            • 3.Qe3#
          • 2...Kf4
            • 3.Qe3#
          • 2...Ke6
            • 3.Sc5#
      • 1...Sb4
        • 2.Qc3+
          • 2...Ke4
            • 3.Qe3#
          • 2...Kf4
            • 3.Qe3#
          • 2...Ke6
            • 3.Sc5#
      • 1...f4
        • 2.Rd5+
          • 2...Ke4
            • 3.Sd2#
      • 1...g5
        • 2.Qxc7+
          • 2...Ke4
            • 3.Sd2#
          • 2...Ke6
            • 3.Qd6#
          • 2...Kf6
            • 3.Qd6#
      • 1...g6
        • 2.Qc5+
          • 2...Ke4
            • 3.Qe3#
          • 2...Kf4
            • 3.Qe3#
          • 2...Ke6
            • 3.Qe7#
          • 2...Kf6
            • 3.Qe7#

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).