Problem Display
PID: 26259 (8/3N4/pp4BK/2N5/3k4/2p2p1p/Q7/8 w - - 0 1)

Mach, Julius Zdenek

Zlata Praha, 1916

8/3N4/pp4BK/2N5/3k4/2p2p1p/Q7/8

#4

5 + 6


3773 FIDE Album (1914-1944) (II) 1972

SOLUTION


  • SOUND
  • Keys
    • 1.Qh2!
      • threat
        • 2.Qf4+
          • 2...Kd5
            • 3.Be4+
              • 3...Kc4
                • 4.Bc6#
              • 3...Kd4
                • 4.Bxf3#
                • 4.Bc6#
                • 4.Bb7#
                • 4.Ba8#
        • 2.Qe5+
          • 2...Kc4
            • 3.Qe4+
              • 3...Kb5
                • 4.Qa4#
      • 1...Ke3
        • 2.Sd3
          • threat
            • 3.Qf2#
          • 2...Kd4
            • 3.Sxb6
              • threat
                • 4.Qf4#
                • 4.Qe5#
                • 4.Qf2#
              • 3...Ke3
                • 4.Qf2#
      • 1...Kc4
        • 2.Qf4+
          • 2...Kd5
            • 3.Be4+
              • 3...Kc4
                • 4.Bc6#
              • 3...Kd4
                • 4.Bxf3#
                • 4.Bc6#
                • 4.Bb7#
                • 4.Ba8#
      • 1...Kd5
        • 2.Bf7+
          • 2...Kc6
            • 3.Qb8
              • threat
                • 4.Qxb6#
              • 3...Kb5
                • 4.Qxb6#
              • 3...bxc5
                • 4.Se5#
              • 3...b5
                • 4.Qb6#
      • 1...bxc5
        • 2.Qe5+
          • 2...Kc4
            • 3.Bc2
              • threat
                • 4.Qxc5#
              • 3...Kb4
                • 4.Qxc5#
              • 3...Kb5
                • 4.Qxc5#
      • 1...c2
        • 2.Qd2+
          • 2...Kc4
            • 3.Bd3+
              • 3...Kd4
                • 4.Bf1#
                • 4.Be2#
                • 4.Bb5#
                • 4.Bxa6#
              • 3...Kd5
                • 4.Bb5#

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).