Problem Display
PID: 171115 (5k2/6p1/5bKp/8/8/p1p5/1p6/nQ2RR2 w - - 0 1)

Ahlheim, Karl-Heinz

1st Prize, Die Rheinpfalz, 1961

5k2/6p1/5bKp/8/8/p1p5/1p6/nQ2RR2

#3

4 + 8


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Sets
    • 1...Kg8
      • 2.Re8#
    • 1...Sc2
      • 2.Qa2
        • threat
          • 3.Qf7#
  • Tries
    • 1.Re4?
      • threat
        • 2.Qd3
          • threat
            • 3.Qd8#
          • 2...Kg8
            • 3.Re8#
        • 2.Qd1
          • threat
            • 3.Qd8#
          • 2...Kg8
            • 3.Re8#
      • 1...c2
        • 2.Qe1
          • threat
            • 3.Re8#
          • 2...Kg8
            • 3.Re8#
      • 1...Sc2
        • 2.Qa2
          • threat
            • 3.Qf7#
      • 1...Sb3!
    • 1.Re6?
      • threat
        • 2.Qe4
          • threat
            • 3.Re8#
            • 3.Qa8#
          • 2...Kg8
            • 3.Re8#
      • 1...c2
        • 2.Qe1
          • threat
            • 3.Re8#
          • 2...Kg8
            • 3.Re8#
      • 1...Sc2!
    • 1.Rf5?
      • threat
        • 2.Qd3
          • threat
            • 3.Qd8#
          • 2...Kg8
            • 3.Re8#
        • 2.Qe4
          • threat
            • 3.Qa8#
            • 3.Qe8#
          • 2...Kg8
            • 3.Qe8#
        • 2.Qd1
          • threat
            • 3.Qd8#
          • 2...Kg8
            • 3.Re8#
      • 1...Sb3
        • 2.Qe4
          • threat
            • 3.Qa8#
            • 3.Qe8#
          • 2...Kg8
            • 3.Qe8#
      • 1...Sc2
        • 2.Qa2
          • threat
            • 3.Qf7#
      • 1...c2!
    • 1.Rxf6+?
      • 1...Kg8
        • 2.Re8#
      • 1...gxf6!
  • Keys
    • 1.Re5!
      • threat
        • 2.Qe4
          • threat
            • 3.Re8#
            • 3.Qa8#
          • 2...Kg8
            • 3.Re8#
      • 1...Sc2
        • 2.Qa2
          • threat
            • 3.Qf7#
      • 1...c2
        • 2.Qe1
          • threat
            • 3.Re8#
          • 2...Kg8
            • 3.Re8#

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).