Problem Display
PID: 25241 (3r2B1/1bB3p1/1Np1r1n1/2k5/1pP5/5pQq/1KNR3b/7n w - - 0 1)

Campbell, Joseph Graham

Era Ty., 1856

3r2B1/1bB3p1/1Np1r1n1/2k5/1pP5/5pQq/1KNR3b/7n

#5

8 + 12


1693 English Chess Problems 1876
1842 The White King 1914

SOLUTION


  • SOUND
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qe3+
          • 2...Rxe3
            • 3.Sa4#
          • 2...Rd4
            • 3.Qxd4#
        • 2.Rd4
          • threat
            • 3.Sa4#
            • 3.Qxb4#
      • 1...Be5+
        • 2.Rd4
          • threat
            • 3.Sa4#
            • 3.Qxb4#
          • 2...Bxd4+
            • 3.Qc3
              • threat
                • 4.Sa4#
              • 3...Bxc3+
                • 4.Kb3
                  • threat
                    • 5.Sa4#
                  • 4...Ra8
                    • 5.Sd7#
              • 3...bxc3+
                • 4.Kb3
                  • threat
                    • 5.Sa4#
                  • 4...Ra8
                    • 5.Sd7#
      • 1...Ra8
        • 2.Sd7+
          • 2...Kxc4
            • 3.Rd4+
              • 3...Kb5
                • 4.Rxb4+
                  • 4...Ka6
                    • 5.Qa1#
                • 4.Qxb4+
                  • 4...Ka6
                    • 5.Qa5#
                    • 5.Qa4#
                    • 5.Qb6#
            • 3.Qe4+
              • 3...Kb5
                • 4.Qd3+
                  • 4...Ka4
                    • 5.Sc5#
                • 4.Qxb4+
                  • 4...Ka6
                    • 5.Qa5#
                    • 5.Qa4#
                    • 5.Qb6#
      • 1...f2
        • 2.Sd7+
          • 2...Rxd7
            • 3.Rd5+
              • 3...Kxc4
                • 4.Qxb4+
                  • 4...Kxd5
                    • 5.Qd4#
              • 3...cxd5
                • 4.Qxb4+
                  • 4...Kc6
                    • 5.Qb6#

FEATURES


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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).