Problem Display
PID: 230206 (8/8/8/4Q3/1pk1K3/8/P7/8 w - - 0 1)

Pierce, William Timbrell

English Mechanic and World of Science, 1879

(First published on Fri May 2 1879)

8/8/8/4Q3/1pk1K3/8/P7/8

#4

3 + 2


15239 Valois Notebooks 2021

SOLUTION


  • COOKED
  • Keys
    • 1.Qg5!
      • 1...b3
        • 2.a3
          • threat
            • 3.Qa5
              • 3...b2
                • 4.Qb4#
          • 2...b2
            • 3.Qd5+
              • 3...Kc3
                • 4.Qd3#
    • 1.Qh5!
      • 1...Kc3
        • 2.Qe2
          • 2...b3
            • 3.a3
              • 3...b2
                • 4.Qd3#
      • 1...b3
        • 2.a3
          • threat
            • 3.Qa5
              • 3...b2
                • 4.Qb4#
          • 2...Kc3
            • 3.Qe2
              • 3...b2
                • 4.Qd3#
          • 2...b2
            • 3.Qd5+
              • 3...Kc3
                • 4.Qd3#

FEATURES


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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).