Problem Display
PID: 134609 (6K1/1p1p2Q1/3R4/1p3P2/1N4p1/N2P2P1/PPp5/k1b5 w - - 0 1)

Galitzky, Aleksandr Vasilevich

Meyer, Heinrich Friedrich Ludwig

Boys' Own Paper, 1896

6K1/1p1p2Q1/3R4/1p3P2/1N4p1/N2P2P1/PPp5/k1b5

#4

10 + 7


1829 The Theory of Pawn Promotion 1912

SOLUTION


  • SOUND
  • Keys
    • 1.Kh7!
      • 1...Bh6
        • 2.Rxh6
          • threat
            • 3.b3#
          • 2...c1Q
            • 3.b3+
              • 3...Qb2
                • 4.Rh1#
              • 3...Qc3
                • 4.Qxc3#
          • 2...c1B
            • 3.b3+
              • 3...Bb2
                • 4.Rh1#
            • 3.Rh1
              • threat
                • 4.Rxc1#
                • 4.b3#
          • 2...c1R
            • 3.b3+
              • 3...Rc3
                • 4.Qxc3#
          • 2...d5
            • 3.Saxc2+
              • 3...Kb1
                • 4.Rh1#
            • 3.Rh1+
              • 3...c1Q
                • 4.Rxc1#
              • 3...c1S
                • 4.Rxc1#
              • 3...c1B
                • 4.Rxc1#
              • 3...c1R
                • 4.Rxc1#
            • 3.b3+
              • 3...d4
                • 4.Qxd4#
      • 1...b6
        • 2.Qh8
          • 2...Bxb2
            • 3.Sbxc2+
              • 3...Kxa2
                • 4.Qg8#
          • 2...Bd2
            • 3.b3+
              • 3...Bc3
                • 4.Qxc3#
          • 2...Be3
            • 3.b3+
              • 3...Bd4
                • 4.Qxd4#
          • 2...Bf4
            • 3.b3+
              • 3...Be5
                • 4.Qxe5#
          • 2...Bg5
            • 3.b3+
              • 3...Bf6
                • 4.Qxf6#
          • 2...Bh6
            • 3.b3+
              • 3...Bg7
                • 4.Qxg7#

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).