Problem Display
PID: 133829 (1nbB2KQ/1kNp3P/pPnp2p1/p2B4/P7/6P1/8/1R6 w - - 0 1)

Weyl, Paul

Akademische Monatshefte fur Schach, 1912

1nbB2KQ/1kNp3P/pPnp2p1/p2B4/P7/6P1/8/1R6

#4

10 + 9


1829 The Theory of Pawn Promotion 1912

SOLUTION


  • COOKED
  • Keys
    • 1.Rc1!
      • 1...g5
        • 2.g4
          • 2...Kxb6
            • 3.Qd4+
              • 3...Kb7
                • 4.Rb1#
              • 3...Sxd4
                • 4.Sb5#
    • 1.Qa1!
      • 1...g5
        • 2.h8B
          • 2...g4
            • 3.Bb2
              • 3...Kxb6
                • 4.Bd4#
    • 1.Qc3!
      • 1...g5
        • 2.Qxa5
          • 2...g4
            • 3.Rb5
              • 3...axb5
                • 4.Qa7#
    • 1.g4!
      • 1...g5
        • 2.Rc1
          • 2...Kxb6
            • 3.Qd4+
              • 3...Kb7
                • 4.Rb1#
              • 3...Sxd4
                • 4.Sb5#

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).