Problem Display
PID: 194601 (6NK/7p/2p1p2p/2B1k3/Q6P/4NP1n/3r3P/1b6 w - - 0 1)

Zipperlin, Otto

Source?, 1918

6NK/7p/2p1p2p/2B1k3/Q6P/4NP1n/3r3P/1b6

#4

8 + 8


6490 yacpdb 2019

SOLUTION


  • COOKED
  • Keys
    • 1.Qb4!
      • threat
        • 2.Sg4+
          • 2...Kd5
            • 3.S8f6#
            • 3.Se7#
          • 2...Kf5
            • 3.Se7#
        • 2.Qb8+
          • 2...Rd6
            • 3.Qxd6#
      • 1...Rd8
        • 2.Bd6+
          • 2...Rxd6
            • 3.Sg4+
              • 3...Kd5
                • 4.S8f6#
                • 4.Se7#
              • 3...Kf5
                • 4.Se7#
        • 2.Qc3+
          • 2...Kf4
            • 3.Sg2+
              • 3...Kf5
                • 4.Qf6#
    • 1.Qg4!
      • threat
        • 2.Qg3+
          • 2...Sf4
            • 3.Qg7#
        • 2.Qg7+
          • 2...Kf4
            • 3.Qg3#
      • 1...Bg6
        • 2.Qb4
          • threat
            • 3.Sg4+
              • 3...Kd5
                • 4.S8f6#
                • 4.Se7#
              • 3...Kf5
                • 4.S8xh6#
                • 4.Se7#
                • 4.Qe4#
            • 3.Qb8+
              • 3...Rd6
                • 4.Qxd6#
          • 2...Rd5
            • 3.Sg4+
              • 3...Kf5
                • 4.S8xh6#
                • 4.Se7#
                • 4.Qe4#
            • 3.Qb8+
              • 3...Rd6
                • 4.Qxd6#
          • 2...Rd7
            • 3.Sg4+
              • 3...Kd5
                • 4.S8f6#
                • 4.Qd4#
              • 3...Kf5
                • 4.S8xh6#
                • 4.Qe4#
            • 3.Qb8+
              • 3...Rd6
                • 4.Qxd6#
              • 3...Rc7
                • 4.Qxc7#
          • 2...Rd8
            • 3.Sg4+
              • 3...Kd5
                • 4.Qd4#
              • 3...Kf5
                • 4.Qe4#

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).