Problem Display
PID: 19527 (8/4nr1b/2p3P1/2PkP3/1K3p2/5N2/4RP2/7B w - - 0 1)

Blumenthal, Oscar

The Theory of Pawn Promotion, 1912

8/4nr1b/2p3P1/2PkP3/1K3p2/5N2/4RP2/7B

#3

8 + 6


SOLUTION


  • SOUND
  • Sets
    • 1...Rf5
      • 2.Rd2+
        • 2...Ke4
          • 3.Rd4#
        • 2...Ke6
          • 3.Rd6#
  • Keys
    • 1.e6!
      • threat
        • 2.Re5#
      • 1...Sxg6
        • 2.exf7
          • 2...Se5
            • 3.Rxe5#
          • 2...Bg8
            • 3.fxg8Q#
            • 3.fxg8B#
          • 2...Sh4
            • 3.Re5#
          • 2...Se7
            • 3.Re5#
          • 2...Sf8
            • 3.Re5#
          • 2...Sh8
            • 3.Re5#
      • 1...Rf5
        • 2.Rd2+
          • 2...Ke4
            • 3.Rd4#
          • 2...Kxe6
            • 3.Rd6#

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).