Problem Display
PID: 37504 (K7/1p6/8/1k6/3Q4/8/RP6/8 w - - 0 1)

Marjanovic, Dragoslav

Politika, 1969

K7/1p6/8/1k6/3Q4/8/RP6/8

#3

4 + 2


SOLUTION


  • SOUND
  • Tries
    • 1.Ra4?
      • 1...b6
        • 2.Qc4#
      • 1...Kc6!
    • 1.Ra5+?
      • 1...Kc6
        • 2.Kb8
          • 2...b5
            • 3.Ra6#
          • 2...b6
            • 3.Qd5#
        • 2.Rc5+
          • 2...Kb6
            • 3.Qd6#
        • 2.Rd5
          • threat
            • 3.Qc5#
          • 2...Kc7
            • 3.Qc5#
          • 2...b6
            • 3.Qc4#
      • 1...Kxa5!
    • 1.Ra7?
      • 1...b6
        • 2.b4
          • 2...Kc6
            • 3.Qd7#
      • 1...Kc6!
    • 1.Qc3?
      • threat
        • 2.Ra5+
          • 2...Kb6
            • 3.Qc5#
      • 1...Kb6
        • 2.b4
          • 2...Kb5
            • 3.Qc5#
      • 1...b6!
    • 1.Qd5+?
      • 1...Kb4
        • 2.Ra5
          • threat
            • 3.Qb5#
          • 2...b5
            • 3.Qxb5#
      • 1...Kb6!
    • 1.b3?
      • 1...b6
        • 2.Qc4#
      • 1...Kc6!
    • 1.b4?
      • threat
        • 2.Qc5#
      • 1...b6
        • 2.Ra7
          • 2...Kc6
            • 3.Qd7#
      • 1...Kc6!
  • Keys
    • 1.Kb8!
      • 1...Kc6
        • 2.Ra5
          • 2...b5
            • 3.Ra6#
          • 2...b6
            • 3.Qd5#
      • 1...b6
        • 2.Ra6
          • 2...Kxa6
            • 3.Qa4#
          • 2...Kc6
            • 3.Rxb6#

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).