Problem Display
PID: 153107 (KQ3B1b/p4B2/1P2R3/N2p2p1/r2k4/1b3q1r/1PP2nN1/8 w - - 0 1)

Makaronets, Leonid

Shifrin, Semion

Schweizerische Schachzeitung, 2001

KQ3B1b/p4B2/1P2R3/N2p2p1/r2k4/1b3q1r/1PP2nN1/8

#4

10 + 10


SOLUTION


  • SOUND
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qc5#
      • 1...Rxa5
        • 2.Qb4+
          • 2...Bc4
            • 3.Qd2+
              • 3...Qd3
                • 4.c3#
              • 3...Bd3
                • 4.Qc3#
              • 3...Sd3
                • 4.Qc3#
                • 4.c3#
      • 1...Bxc2
        • 2.Qc5+
          • 2...Kd3
            • 3.Se1+
              • 3...Kd2
                • 4.Qxc2#
      • 1...Rc4
        • 2.Sxb3+
          • 2...Qxb3
            • 3.Re4+
              • 3...Kxe4
                • 4.Qxd5#
              • 3...Sxe4
                • 4.Qxd5#
      • 1...Se4
        • 2.Sc6+
          • 2...Kc4
            • 3.Qxd5+
              • 3...Kxd5
                • 4.Rf6#

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).