Problem Display
PID: 176917 (8/8/8/5K2/8/1N2p3/7Q/5k2 w - - 0 1)

Holler, Werner

Schach-Echo, 1990

8/8/8/5K2/8/1N2p3/7Q/5k2

#3

3 + 2


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Ke4?
      • threat
        • 2.Kxe3
          • 2...Ke1
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qe2#
        • 2.Kf3
          • threat
            • 3.Qh1#
          • 2...Ke1
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qe2#
      • 1...Ke1
        • 2.Kxe3
          • threat
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qe2#
          • 2...Kd1
            • 3.Qd2#
            • 3.Qe2#
          • 2...Kf1
            • 3.Qh1#
            • 3.Qf2#
        • 2.Kf3
          • threat
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qe2#
          • 2...Kd1
            • 3.Qe2#
          • 2...Kf1
            • 3.Qh1#
      • 1...e2!
    • 1.Kf4?
      • threat
        • 2.Kxe3
          • 2...Ke1
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qe2#
        • 2.Kf3
          • threat
            • 3.Qh1#
          • 2...Ke1
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qe2#
      • 1...Ke1
        • 2.Kxe3
          • threat
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qe2#
          • 2...Kd1
            • 3.Qd2#
            • 3.Qe2#
          • 2...Kf1
            • 3.Qh1#
            • 3.Qf2#
        • 2.Kf3
          • threat
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qe2#
          • 2...Kd1
            • 3.Qe2#
          • 2...Kf1
            • 3.Qh1#
      • 1...e2!
    • 1.Sc1?
      • threat
        • 2.Sd3
          • 2...e2
            • 3.Qh1#
            • 3.Qf2#
      • 1...Ke1
        • 2.Qe2#
      • 1...e2!
    • 1.Sd4?
      • threat
        • 2.Sf3
          • 2...e2
            • 3.Qg1#
      • 1...Ke1
        • 2.Qe2#
      • 1...e2!
    • 1.Qg3?
      • 1...e2
        • 2.Sd2#
      • 1...Ke2!
  • Keys
    • 1.Kg4!
      • threat
        • 2.Kf3
          • threat
            • 3.Qh1#
          • 2...Ke1
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qe2#
      • 1...Ke1
        • 2.Kf3
          • threat
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qe2#
          • 2...Kd1
            • 3.Qe2#
          • 2...Kf1
            • 3.Qh1#
      • 1...e2
        • 2.Kh3
          • 2...Ke1
            • 3.Qg1#
          • 2...e1Q
            • 3.Qg2#
          • 2...e1S
            • 3.Sd2#
          • 2...e1B
            • 3.Qg2#
          • 2...e1R
            • 3.Sd2#
            • 3.Qg2#

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).