Problem Display
PID: 19969 (1R6/pQ1Kb3/5p2/P1p5/k1pn4/p4p2/P3n1r1/1R1N1b2 w - - 0 1)

Przepiorka, Dawid

L'Italia Scacchistica, 1911

1R6/pQ1Kb3/5p2/P1p5/k1pn4/p4p2/P3n1r1/1R1N1b2

#4

7 + 12


SOLUTION


  • SOUND
  • Keys
    • 1.Ra1!
      • threat
        • 2.Sb2+
          • 2...axb2
            • 3.Qb3+
              • 3...Kxa5
                • 4.Qa3#
              • 3...Sxb3
                • 4.axb3#
              • 3...cxb3
                • 4.axb3#
      • 1...c3
        • 2.Qb3+
          • 2...Sxb3
            • 3.axb3+
              • 3...Kxa5
                • 4.Rxa3#

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).