Problem Display
PID: 223991 (k2K4/Pp2R3/1P6/8/4P3/R7/p7/B4b2 w - - 0 1)

Gfeller, Heinz

Deutsche Schachzeitung, 1980

k2K4/Pp2R3/1P6/8/4P3/R7/p7/B4b2

#3

7 + 4


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Sets
    • 1...Bd3
      • 2.Rc7
        • threat
          • 3.Rc8#
    • 1...Ba6
      • 2.Rc7
        • threat
          • 3.Rc8#
  • Tries
    • 1.Kc7?
      • threat
        • 2.Re8#
      • 1...Bh3
        • 2.Re8+
          • 2...Bc8
            • 3.Rxc8#
      • 1...Bb5!
    • 1.Bd4?
      • threat
        • 2.Rxb7
          • threat
            • 3.Rb8#
          • 2...Kxb7
            • 3.a8Q#
      • 1...Ba6
        • 2.Rc7
          • threat
            • 3.Rc8#
      • 1...a1Q!
    • 1.Rc3?
      • threat
        • 2.Rc8#
      • 1...Bc4
        • 2.Rd7
          • 2...Bf1
            • 3.Rc8#
          • 2...Be2
            • 3.Rc8#
          • 2...Bb3
            • 3.Rc8#
          • 2...Bd3
            • 3.Rc8#
          • 2...Bb5
            • 3.Rc8#
          • 2...Bd5
            • 3.Rc8#
          • 2...Ba6
            • 3.Rc8#
          • 2...Be6
            • 3.Rc8#
          • 2...Bf7
            • 3.Rc8#
          • 2...Bg8
            • 3.Rc8#
      • 1...Bh3!
    • 1.Re8?
      • threat
        • 2.Kc7#
        • 2.Kd7#
        • 2.Ke7#
      • 1...Bh3
        • 2.Kc7+
          • 2...Bc8
            • 3.Rxc8#
        • 2.Ke7+
          • 2...Bc8
            • 3.Rxc8#
      • 1...Bb5!
  • Keys
    • 1.Ra6!
      • threat
        • 2.Rxb7
          • threat
            • 3.Rb8#
          • 2...Kxb7
            • 3.a8Q#
      • 1...Bxa6
        • 2.Rc7
          • threat
            • 3.Rc8#
      • 1...bxa6
        • 2.Bd4
          • threat
            • 3.b7#

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).