Problem Display
PID: 246887 (3k4/8/5Np1/6K1/8/2P5/2Q5/8 w - - 0 1)

Schrader, Carl

Lesestunde, 1957

3k4/8/5Np1/6K1/8/2P5/2Q5/8

#4

4 + 2


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Keys
    • 1.Qh2!
      • threat
        • 2.Qh7
          • 2...Kc8
            • 3.Qa7
              • 3...Kd8
                • 4.Qd7#
      • 1...Ke7
        • 2.Qc7+
          • 2...Ke6
            • 3.Qd7+
              • 3...Ke5
                • 4.Qd5#
                • 4.Qe7#
          • 2...Kf8
            • 3.Kh6
              • 3...g5
                • 4.Qg7#
        • 2.Qb8
          • 2...Ke6
            • 3.Qf8
              • 3...Ke5
                • 4.Qe7#
          • 2...Kf7
            • 3.Qe8+
              • 3...Kg7
                • 4.Qg8#
      • 1...Kc8
        • 2.Sd5
          • threat
            • 3.Qc7#
          • 2...Kb7
            • 3.Qc7+
              • 3...Ka6
                • 4.Qb6#
              • 3...Ka8
                • 4.Sb6#
          • 2...Kd7
            • 3.Qc7+
              • 3...Ke6
                • 4.Sf4#
              • 3...Ke8
                • 4.Qe7#
          • 2...Kd8
            • 3.Qd6+
              • 3...Kc8
                • 4.Qc7#
              • 3...Ke8
                • 4.Qe7#
            • 3.Qc7+
              • 3...Ke8
                • 4.Qe7#
            • 3.Qh7
              • 3...Kc8
                • 4.Qc7#
              • 3...Ke8
                • 4.Qe7#

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).