Problem Display
PID: 69162 (2Bn4/4ppQ1/NRpkp3/2pP3q/1B1r2R1/3nN2p/b7/K7 w - - 0 1)

Doukhan, Gerard

1st Prize, Problemas, 1980

2Bn4/4ppQ1/NRpkp3/2pP3q/1B1r2R1/3nN2p/b7/K7

#3

9 + 12


SOLUTION


  • SOUND
  • Sets
    • 1...Bxd5
      • 2.Qxd4
        • threat
          • 3.Sc4#
        • 2...Sb2
          • 3.Bxc5#
        • 2...Se5
          • 3.Bxc5#
          • 3.Qxc5#
    • 1...Sc1
      • 2.Bxc5#
    • 1...Se1
      • 2.Bxc5#
    • 1...Sb2
      • 2.Bxc5#
    • 1...Sf2
      • 2.Bxc5#
    • 1...Sf4
      • 2.Bxc5#
    • 1...Se5
      • 2.Bxc5#
    • 1...Sb7
      • 2.Rxc6#
  • Keys
    • 1.Ba5!
      • threat
        • 2.Rxc6+
          • 2...Sxc6
            • 3.Bc7#
      • 1...Qxd5
        • 2.Rb1
          • threat
            • 3.Bc7#
      • 1...Rxd5
        • 2.Rb2
          • threat
            • 3.Bc7#
      • 1...Bxd5
        • 2.Rb4
          • threat
            • 3.Bc7#
      • 1...exd5
        • 2.Rb7
          • threat
            • 3.Bc7#
          • 2...Se6
            • 3.Rd7#
          • 2...e5
            • 3.Qf8#
          • 2...e6
            • 3.Rd7#
      • 1...f6
        • 2.Rxc6+
          • 2...Ke5
            • 3.Bc7#
          • 2...Sxc6
            • 3.Bc7#
      • 1...Sb4
        • 2.Rxc6+
          • 2...Sbxc6
            • 3.Bc7#
          • 2...Sdxc6
            • 3.Bc7#
      • 1...Se5
        • 2.Rxc6+
          • 2...Sexc6
            • 3.Bc7#
          • 2...Sdxc6
            • 3.Bc7#

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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).