Problem Display
PID: 253937 (BK1B4/3p4/k7/8/P7/8/1R6/6rb w - - 0 1)

Jansen, Herbert

Schach, 1963

BK1B4/3p4/k7/8/P7/8/1R6/6rb

#3

5 + 4


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Rg2
      • 2.Bb7#
    • 1...Rg5
      • 2.Rb7
        • threat
          • 3.Ra7#
        • 2...Bxb7
          • 3.Bxb7#
        • 2...Rb5
          • 3.axb5#
    • 1...Bf3
      • 2.Bxf3
        • threat
          • 3.Be2#
          • 3.Bb7#
    • 1...Be4
      • 2.Bxe4
        • threat
          • 3.Bd3#
          • 3.Bb7#
    • 1...Bd5
      • 2.Bxd5
        • threat
          • 3.Bc4#
          • 3.Bb7#
    • 1...Bb7
      • 2.Bxb7#
    • 1...d5
      • 2.Bb7#
  • Tries
    • 1.Bxh1?
      • threat
        • 2.Bb7#
      • 1...Rg2
        • 2.Bxg2
          • threat
            • 3.Bf1#
            • 3.Bb7#
        • 2.Rc2
          • 2...Rxc2
            • 3.Bb7#
          • 2...Rg1
            • 3.Bb7#
          • 2...Rd2
            • 3.Bb7#
          • 2...Re2
            • 3.Bb7#
          • 2...Rf2
            • 3.Bb7#
          • 2...Rh2
            • 3.Bb7#
          • 2...Rg3
            • 3.Bb7#
          • 2...Rg4
            • 3.Bb7#
          • 2...Rg5
            • 3.Bb7#
          • 2...Rg6
            • 3.Bb7#
          • 2...Rg7
            • 3.Bb7#
          • 2...Rg8
            • 3.Bb7#
          • 2...d5
            • 3.Rc6#
          • 2...d6
            • 3.Rc6#
        • 2.Rb5
          • threat
            • 3.Ra5#
          • 2...Rb2
            • 3.Bb7#
          • 2...Rg5
            • 3.Bb7#
      • 1...d5
        • 2.Bxd5
          • threat
            • 3.Bc4#
            • 3.Bb7#
      • 1...Rxh1!
    • 1.Rb7?
      • threat
        • 2.Ra7#
      • 1...Bxb7
        • 2.Bxb7#
      • 1...Rb1!
  • Keys
    • 1.Rb5!
      • threat
        • 2.Ra5#
      • 1...Rb1
        • 2.Bb7+
          • 2...Bxb7
            • 3.Ra5#
      • 1...Rg5
        • 2.Rb7
          • threat
            • 3.Ra7#
          • 2...Bxb7
            • 3.Bxb7#
          • 2...Rb5
            • 3.axb5#

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).