Problem Display
PID: 89606 (1r4n1/4pp2/1pp5/3pN3/1QNk3K/8/8/8 w - - 0 1)

Mach, Julius Zdenek

Zlata Praha, 1902

1r4n1/4pp2/1pp5/3pN3/1QNk3K/8/8/8

#4

4 + 8


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Keys
    • 1.Kg5!
      • threat
        • 2.Kf4
          • threat
            • 3.Sb2#
            • 3.Sd2#
            • 3.Sa3#
            • 3.Se3#
            • 3.Sa5#
            • 3.Sxb6#
            • 3.Sd6#
          • 2...dxc4
            • 3.Qxc4#
          • 2...c5
            • 3.Qd2#
            • 3.Qb2#
      • 1...dxc4
        • 2.Kf4
          • threat
            • 3.Qxc4#
          • 2...Kd5
            • 3.Qxc4+
              • 3...Kd6
                • 4.Qxc6#
          • 2...b5
            • 3.Qd2+
              • 3...Kc5
                • 4.Sd7#
      • 1...Ra8
        • 2.Qb2+
          • 2...Ke4
            • 3.Qe2+
              • 3...Kd4
                • 4.Qe3#
        • 2.Kf4
          • threat
            • 3.Sb2#
            • 3.Sd2#
            • 3.Sa3#
            • 3.Se3#
            • 3.Sa5#
            • 3.Sxb6#
            • 3.Sd6#
          • 2...Ra4
            • 3.Qb2+
              • 3...Kc5
                • 4.Qxb6#
            • 3.Qxb6+
              • 3...Kc3
                • 4.Qb2#
              • 3...c5
                • 4.Qb2#
      • 1...Sf6
        • 2.Sa5+
          • 2...Ke3
            • 3.Qe1+
              • 3...Kd4
                • 4.Sb3#
          • 2...Kxe5
            • 3.Sxc6+
              • 3...Ke6
                • 4.Qxe7#
      • 1...b5
        • 2.Sxc6+
          • 2...Kd3
            • 3.Qd2+
              • 3...Kxc4
                • 4.Qc2#
              • 3...Ke4
                • 4.Qe3#
                • 4.Qe2#
          • 2...Ke4
            • 3.S4e5+
              • 3...Ke3
                • 4.Qe1#
              • 3...d4
                • 4.Qxd4#
        • 2.Kf4
          • threat
            • 3.Sb2#
            • 3.Sd2#
            • 3.Sa3#
            • 3.Se3#
            • 3.Sa5#
            • 3.Sb6#
            • 3.Sd6#
          • 2...bxc4
            • 3.Sf3+
              • 3...Kd3
                • 4.Qd2#
          • 2...dxc4
            • 3.Qd2+
              • 3...Kc5
                • 4.Sd7#

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).