Problem Display
PID: 144673 (1r1r1n2/b1p2N2/2P2N1K/QpkP1Rpb/3p4/P2p1qB1/8/8 w - - 0 1)

Lyubashevsky, Leonid Abramovic

Makaronets, Leonid

Probleemblad, 2011

1r1r1n2/b1p2N2/2P2N1K/QpkP1Rpb/3p4/P2p1qB1/8/8

#4

9 + 12


SOLUTION


  • SOUND
  • Keys
    • 1.Se5!
      • threat
        • 2.Qb4+
          • 2...Kb6
            • 3.Sc4+
              • 3...Ka6
                • 4.Qa5#
      • 1...Kd6
        • 2.Qb4+
          • 2...Bc5
            • 3.Sg6+
              • 3...Qxg3
                • 4.Se4#
              • 3...Qf4
                • 4.Se4#
      • 1...Qxd5
        • 2.Se4+
          • 2...Qxe4
            • 3.Sd7+
              • 3...Kc4
                • 4.Qb4#
              • 3...Kxc6
                • 4.Qxc7#
      • 1...Rxd5
        • 2.Sed7+
          • 2...Sxd7
            • 3.Sxd7+
              • 3...Kc4
                • 4.Qb4#
              • 3...Kxc6
                • 4.Qxc7#

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).