Problem Display
PID: 20394 (4K1B1/NRN1p3/1P1kP3/2p5/2p2P2/8/n7/1r2b1B1 w - - 0 1)

Diot, Roger

Drumare, Pierre

4th HM., Grunenwald/Monreal JT (diagrammes), 1978

4K1B1/NRN1p3/1P1kP3/2p5/2p2P2/8/n7/1r2b1B1

#4

9 + 7


SOLUTION


  • SOUND
  • Keys
    • 1.Bh2!
      • threat
        • 2.f5+
          • 2...Bg3
            • 3.Bxg3#
      • 1...Rb2
        • 2.Rb8
          • threat
            • 3.Rd8#
          • 2...Rxb6
            • 3.f5+
              • 3...Bg3
                • 4.Bxg3#
      • 1...Rb3
        • 2.Bh7
          • threat
            • 3.Sc8+
              • 3...Kc6
                • 4.Be4#
            • 3.Be4
              • threat
                • 4.Sc8#
          • 2...Rd3
            • 3.Rb8
              • threat
                • 4.Rd8#
          • 2...Re3
            • 3.Rb8
              • threat
                • 4.Rd8#
          • 2...Sc3
            • 3.f5+
              • 3...Bg3
                • 4.Bxg3#
          • 2...Sb4
            • 3.Rb8
              • threat
                • 4.Rd8#
              • 3...Sc6
                • 4.Sc8#
        • 2.Rb8
          • threat
            • 3.Rd8#
          • 2...Rxb6
            • 3.f5+
              • 3...Bg3
                • 4.Bxg3#
      • 1...Bc3
        • 2.Bh7
          • threat
            • 3.Sc8+
              • 3...Kc6
                • 4.Be4#
            • 3.Be4
              • threat
                • 4.Sc8#
          • 2...Rd1
            • 3.Rb8
              • threat
                • 4.Rd8#
          • 2...Re1
            • 3.Rb8
              • threat
                • 4.Rd8#
          • 2...Sb4
            • 3.Rb8
              • threat
                • 4.Rd8#
              • 3...Sc6
                • 4.Sc8#
      • 1...Bg3
        • 2.Bxg3
          • threat
            • 3.f5#
          • 2...Re1
            • 3.Rb8
              • threat
                • 4.Rd8#
          • 2...Rf1
            • 3.f5+
              • 3...Rf4
                • 4.Bxf4#
            • 3.Rb8
              • threat
                • 4.Rd8#
              • 3...Rxf4
                • 4.Bxf4#
          • 2...Rg1
            • 3.Rb8
              • threat
                • 4.Rd8#
          • 2...Rb3
            • 3.Bh4
              • threat
                • 4.Bxe7#
            • 3.Rb8
              • threat
                • 4.Rd8#
              • 3...Rxb6
                • 4.f5#

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).