Problem Display
PID: 275565 (2Br4/5N1r/2P5/3pp1Rb/pQpkpP2/3p2p1/3N2P1/4K3 w - - 0 1)

Lyubashevsky, Leonid Abramovic

Makaronets, Leonid

Problemist Ukraini, 2023

2Br4/5N1r/2P5/3pp1Rb/pQpkpP2/3p2p1/3N2P1/4K3

#4

9 + 11


SOLUTION


  • SOUND
  • Keys
    • 1.Rxe5!
      • threat
        • 2.Rxe4+
          • 2...dxe4
            • 3.Qxc4+
              • 3...Ke3
                • 4.Qxe4#
      • 1...Ke3
        • 2.Qc5+
          • 2...Kxf4
            • 3.Rxe4+
              • 3...dxe4
                • 4.Qg5#
      • 1...Bxf7
        • 2.Sf3+
          • 2...exf3
            • 3.Kd2
              • threat
                • 4.Qb6#
      • 1...Re8
        • 2.Sb3+
          • 2...axb3
            • 3.Rxd5+
              • 3...Ke3
                • 4.Qd2#
              • 3...Kxd5
                • 4.Qd6#
      • 1...Bf3
        • 2.Sxf3+
          • 2...exf3
            • 3.Kd2
              • threat
                • 4.Qb6#
      • 1...Bg6
        • 2.Sf3+
          • 2...exf3
            • 3.Kd2
              • threat
                • 4.Qb6#

FEATURES


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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).