Problem Display
PID: 181286 (8/6B1/8/3N4/3K4/2R5/pp6/k7 w - - 0 1)

Gelle, Jean

Bulletin Ouvrier des Echecs, 1953

8/6B1/8/3N4/3K4/2R5/pp6/k7

#3

4 + 3


SOLUTION


  • SOUND
  • Sets
    • 1...b1B
      • 2.Rb3
        • threat
          • 3.Ke3#
          • 3.Kc4#
          • 3.Kc5#
  • Tries
    • 1.Ke4?
      • threat
        • 2.Rc1#
      • 1...b1Q+
        • 2.Rc2+
          • 2...Qb2
            • 3.Rc1#
        • 2.Rd3+
          • 2...Qb2
            • 3.Rd1#
      • 1...Kb1!
    • 1.Rc2?
      • 1...Kb1
        • 2.Kd3
          • 2...Ka1
            • 3.Rc1#
          • 2...a1Q
            • 3.Sc3#
          • 2...a1S
            • 3.Sc3#
          • 2...a1B
            • 3.Sc3#
          • 2...a1R
            • 3.Sc3#
      • 1...b1Q
        • 2.Kd3+
          • 2...Qb2
            • 3.Rc1#
        • 2.Ke3+
          • 2...Qb2
            • 3.Rc1#
        • 2.Kc4+
          • 2...Qb2
            • 3.Rc1#
        • 2.Ke4+
          • 2...Qb2
            • 3.Rc1#
        • 2.Kc5+
          • 2...Qb2
            • 3.Rc1#
      • 1...b1R
        • 2.Kd3+
          • 2...Rb2
            • 3.Rc1#
        • 2.Ke3+
          • 2...Rb2
            • 3.Rc1#
        • 2.Kc4+
          • 2...Rb2
            • 3.Rc1#
        • 2.Ke4+
          • 2...Rb2
            • 3.Rc1#
        • 2.Kc5+
          • 2...Rb2
            • 3.Rc1#
      • 1...b1S!
  • Keys
    • 1.Kd3!
      • threat
        • 2.Rc1#
      • 1...b1Q+
        • 2.Rc2+
          • 2...Qb2
            • 3.Rc1#
      • 1...Kb1
        • 2.Rc2
          • 2...Ka1
            • 3.Rc1#
          • 2...a1Q
            • 3.Sc3#
          • 2...a1S
            • 3.Sc3#
          • 2...a1B
            • 3.Sc3#
          • 2...a1R
            • 3.Sc3#

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).