Problem Display
PID: 134572 (3BR1K1/1p1P4/1P2B3/8/8/8/1p1p1p2/krbN4 w - - 0 1)

von Holzhausen, Walther Freiherr

Deutsches Wochenschach, 1905

3BR1K1/1p1P4/1P2B3/8/8/8/1p1p1p2/krbN4

#4

7 + 7


1829 The Theory of Pawn Promotion 1912

SOLUTION


  • SOUND
  • Keys
    • 1.Be7!
      • threat
        • 2.Ra8#
      • 1...f1Q
        • 2.Ra8+
          • 2...Qa6
            • 3.d8Q
              • 3...Qxa8
                • 4.Qxa8#
              • 3...Qa2
                • 4.Rxa2#
              • 3...Qa3
                • 4.Rxa3#
              • 3...Qa4
                • 4.Rxa4#
              • 3...Qa5
                • 4.Rxa5#
              • 3...Qa7
                • 4.Rxa7#
            • 3.d8R
              • 3...Qxa8
                • 4.Rxa8#
              • 3...Qa2
                • 4.Rxa2#
              • 3...Qa3
                • 4.Rxa3#
              • 3...Qa4
                • 4.Rxa4#
              • 3...Qa5
                • 4.Rxa5#
              • 3...Qa7
                • 4.Rxa7#
      • 1...f1B
        • 2.Ra8+
          • 2...Ba6
            • 3.Ba3
              • 3...Bc4
                • 4.Bxb2#
              • 3...Bf1
                • 4.Bxb2#
              • 3...Be2
                • 4.Bxb2#
              • 3...Bd3
                • 4.Bxb2#
              • 3...Bb5
                • 4.Bxb2#

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).