Problem Display
PID: 134729 (R1Q5/Kp6/p2p1prP/1p1kp1P1/R7/1P3p1n/1PP1Pp2/4r3 w - - 0 1)

Lyubashevsky, Leonid Abramovic

Makaronets, Leonid

2nd HM., StrateGems, 2009

R1Q5/Kp6/p2p1prP/1p1kp1P1/R7/1P3p1n/1PP1Pp2/4r3

#4

10 + 12


145 StrateGems 2010

SOLUTION


  • SOUND
  • Keys
    • 1.c3!
      • threat
        • 2.Rd4+
          • 2...exd4
            • 3.Qf5+
              • 3...Kc6
                • 4.Rc8#
      • 1...Rxe2
        • 2.c4+
          • 2...Kd4
            • 3.cxb5+
              • 3...Kd3
                • 4.Qc3#
              • 3...Ke3
                • 4.Qc3#
              • 3...Kd5
                • 4.Qc4#
          • 2...Ke4
            • 3.cxb5+
              • 3...Kd3
                • 4.Qc3#
              • 3...Ke3
                • 4.Qc3#
              • 3...Kd5
                • 4.Qc4#
      • 1...Rxg5
        • 2.Qxb7+
          • 2...Ke6
            • 3.Re8+
              • 3...Kf5
                • 4.Qe4#
      • 1...Rg7
        • 2.hxg7
          • threat
            • 3.g8Q#
            • 3.g8B#
          • 2...Sxg5
            • 3.g8Q+
              • 3...Se6
                • 4.Qgxe6#
              • 3...Sf7
                • 4.Qxf7#
            • 3.g8B+
              • 3...Se6
                • 4.Bxe6#
              • 3...Sf7
                • 4.Bxf7#
          • 2...e4
            • 3.Qf5+
              • 3...Kc6
                • 4.Rc8#
          • 2...Sf4
            • 3.g8Q+
              • 3...Se6
                • 4.Qgxe6#
            • 3.g8B+
              • 3...Se6
                • 4.Bxe6#
      • 1...Rg8
        • 2.Qxg8+
          • 2...Kc6
            • 3.Rc8+
              • 3...Kd7
                • 4.Qe8#

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).