Problem Display
PID: 200874 (8/2Q5/8/3k2Bp/8/3K4/8/8 w - - 0 1)

Moller, Ferdinand Friedrich

Source?, 1922

8/2Q5/8/3k2Bp/8/3K4/8/8

#4

3 + 2


6490 yacpdb 2020

SOLUTION


  • COOKED
  • Keys
    • 1.Bh4!
      • 1...Ke6
        • 2.Qb7
          • 2...Ke5
            • 3.Qc6
              • 3...Kf4
                • 4.Qe4#
              • 3...Kf5
                • 4.Qe4#
          • 2...Kd6
            • 3.Kd4
              • 3...Ke6
                • 4.Qd5#
    • 1.Qb7+!
      • 1...Ke5
        • 2.Qd7
          • 2...h4
            • 3.Kc4
              • threat
                • 4.Qd5#
              • 3...Ke4
                • 4.Qd5#
      • 1...Kd6
        • 2.Kd4
          • threat
            • 3.Bh4
              • 3...Ke6
                • 4.Qd5#
            • 3.Bd8
              • threat
                • 4.Qd5#
              • 3...Ke6
                • 4.Qd5#
      • 1...Ke6
        • 2.Bh4
          • 2...Ke5
            • 3.Qc6
              • 3...Kf4
                • 4.Qe4#
              • 3...Kf5
                • 4.Qe4#
          • 2...Kd6
            • 3.Kd4
              • 3...Ke6
                • 4.Qd5#
    • 1.Qc8!
      • threat
        • 2.Bf4
          • 2...h4
            • 3.Qc4#
      • 1...Ke5
        • 2.Qd7
          • 2...h4
            • 3.Kc4
              • threat
                • 4.Qd5#
              • 3...Ke4
                • 4.Qd5#
      • 1...Kd6
        • 2.Bh4
          • 2...Kd5
            • 3.Bg3
              • 3...h4
                • 4.Qc4#
          • 2...Ke5
            • 3.Qc6
              • 3...Kf4
                • 4.Qe4#
              • 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).