Problem Display
PID: 89686 (1B2K3/4p2p/1p2N2P/4pR2/r3k1p1/1Q2p3/p4pr1/1b3n2 w - - 0 1)

Skalik, Frantisek

Zlata Praha, 1907

1B2K3/4p2p/1p2N2P/4pR2/r3k1p1/1Q2p3/p4pr1/1b3n2

#4

6 + 13


6490 yacpdb 2009
1101 BCSC Final 2009-2010
56 The Problemist 2010

SOLUTION


  • SOUND
  • Keys
    • 1.Qb5!
      • threat
        • 2.Rf4+
          • 2...exf4
            • 3.Sg5+
              • 3...Kd4
                • 4.Be5#
      • 1...Rc4
        • 2.Qd5+
          • 2...Kxd5
            • 3.Rxe5+
              • 3...Kc6
                • 4.Sd8#
          • 2...Kxf5
            • 3.Qxe5+
              • 3...Kg6
                • 4.Qg5#
      • 1...e2
        • 2.Qxe2+
          • 2...Kd5
            • 3.Rxe5+
              • 3...Kc6
                • 4.Sd8#
          • 2...Kxf5
            • 3.Qxe5+
              • 3...Kg6
                • 4.Qg5#
      • 1...Ra8
        • 2.Rxe5+
          • 2...Kf3
            • 3.Rf5+
              • 3...Ke4
                • 4.Rf4#
                • 4.Qd5#
              • 3...Bxf5
                • 4.Sg5#

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).