Problem Display
PID: 215352 (8/3NRp2/3k4/3Nb3/3p4/3K4/8/8 w - - 0 1)

Meyer, Heinrich Friedrich Ludwig

Baltimore American and Commercial Advertiser, 1881

8/3NRp2/3k4/3Nb3/3p4/3K4/8/8

#4

4 + 4


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Kc4!
      • threat
        • 2.Sxe5
          • threat
            • 3.Sxf7+
              • 3...Kc6
                • 4.Rc7#
          • 2...f5
            • 3.Sf7+
              • 3...Kc6
                • 4.Rc7#
          • 2...f6
            • 3.Sf7+
              • 3...Kc6
                • 4.Rc7#
        • 2.S7b6
          • threat
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
          • 2...Kc6
            • 3.Sc8
              • threat
                • 4.Sb4#
              • 3...Bc7
                • 4.Rxc7#
              • 3...Bd6
                • 4.Sa7#
          • 2...Bf6
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
                • 4.Rc7#
          • 2...Bg7
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
                • 4.Rc7#
          • 2...Bh8
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
                • 4.Rc7#
      • 1...Kc6
        • 2.Sxe5+
          • 2...Kd6
            • 3.Sxf7+
              • 3...Kc6
                • 4.Rc7#
      • 1...Bh2
        • 2.S7b6
          • threat
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
          • 2...Kc6
            • 3.Sc8
              • threat
                • 4.Sb4#
              • 3...Bc7
                • 4.Rxc7#
              • 3...Bd6
                • 4.Sa7#
          • 2...Bg1
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
                • 4.Rc7#
      • 1...Bg3
        • 2.S7b6
          • threat
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
          • 2...Kc6
            • 3.Sc8
              • threat
                • 4.Sb4#
              • 3...Bc7
                • 4.Rxc7#
              • 3...Be1
                • 4.Rc7#
              • 3...Bd6
                • 4.Sa7#
          • 2...Be1
            • 3.Sc8+
              • 3...Kc6
                • 4.Rc7#
          • 2...Bf2
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
                • 4.Rc7#
          • 2...Bh4
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
                • 4.Rc7#
      • 1...Bf4
        • 2.S7b6
          • threat
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
          • 2...Kc6
            • 3.Sc8
              • threat
                • 4.Sb4#
              • 3...Bc7
                • 4.Rxc7#
              • 3...Bd2
                • 4.Rc7#
              • 3...Bd6
                • 4.Sa7#
          • 2...Bc1
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
                • 4.Rc7#
          • 2...Bd2
            • 3.Sc8+
              • 3...Kc6
                • 4.Rc7#
          • 2...Be3
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
                • 4.Rc7#
          • 2...Bg5
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
                • 4.Rc7#
          • 2...Bh6
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
                • 4.Rc7#
      • 1...Bf6
        • 2.S7xf6
          • threat
            • 3.Se4+
              • 3...Kc6
                • 4.Rc7#
            • 3.Se8+
              • 3...Kc6
                • 4.Rc7#
          • 2...Kc6
            • 3.Se4
              • threat
                • 4.Rc7#
            • 3.Se8
              • threat
                • 4.Rc7#
      • 1...Bg7
        • 2.S7b6
          • threat
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
                • 4.Rc7#
          • 2...Kc6
            • 3.Sc8
              • threat
                • 4.Sb4#
                • 4.Rc7#
          • 2...Be5
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
      • 1...Bh8
        • 2.S7b6
          • threat
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
                • 4.Rc7#
          • 2...Kc6
            • 3.Sc8
              • threat
                • 4.Sb4#
                • 4.Rc7#
          • 2...Be5
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
      • 1...f6
        • 2.S7b6
          • threat
            • 3.Sc8+
              • 3...Kc6
                • 4.Sb4#
          • 2...Kc6
            • 3.Sc8
              • threat
                • 4.Sb4#
              • 3...Bc7
                • 4.Rxc7#
              • 3...Bd6
                • 4.Sa7#

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).