Problem Display
PID: 147994 (R5BK/P7/8/8/7p/k1pNp2n/2pbQ3/3bq3 w - - 0 1)

Kraemer, Adolf Herrmann Rudolf Ferdinand

Deutsche Schachzeitung, 1943

R5BK/P7/8/8/7p/k1pNp2n/2pbQ3/3bq3

#4

6 + 9


56 The Problemist 2013

SOLUTION


  • SOUND
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qa5#
      • 1...Bxh5
        • 2.Re8
          • threat
            • 3.a8Q#
            • 3.a8R#
          • 2...Ka4
            • 3.a8Q+
              • 3...Kb5
                • 4.Rb8#
          • 2...Bxe8
            • 3.a8Q+
              • 3...Ba4
                • 4.Qf8#
          • 2...Bf7
            • 3.a8Q+
              • 3...Kb3
                • 4.Bxf7#
            • 3.a8R+
              • 3...Kb3
                • 4.Bxf7#
          • 2...Qh1
            • 3.a8Q+
              • 3...Qxa8
                • 4.Rxa8#
            • 3.a8R+
              • 3...Qxa8
                • 4.Rxa8#
          • 2...Bf3
            • 3.a8Q+
              • 3...Bxa8
                • 4.Rxa8#
            • 3.a8R+
              • 3...Bxa8
                • 4.Rxa8#
      • 1...Sg5
        • 2.Qxg5
          • threat
            • 3.Qa5#
          • 2...Ka4
            • 3.Qc5
              • threat
                • 4.Qb4#
          • 2...c1Q
            • 3.Qe7+
              • 3...Ka4
                • 4.Qb4#
            • 3.Qa5+
              • 3...Ba4
                • 4.Qb4#
                • 4.Qc5#
            • 3.Qc5+
              • 3...Ka4
                • 4.Qb4#
          • 2...c1S
            • 3.Qe7+
              • 3...Ka4
                • 4.Qb4#
            • 3.Qa5+
              • 3...Ba4
                • 4.Qb4#
                • 4.Qc5#
            • 3.Qc5+
              • 3...Ka4
                • 4.Qb4#
          • 2...c1B
            • 3.Qe7+
              • 3...Ka4
                • 4.Qb4#
            • 3.Qa5+
              • 3...Ba4
                • 4.Qb4#
                • 4.Qc5#
            • 3.Qc5+
              • 3...Ka4
                • 4.Qb4#
            • 3.Qb5
              • threat
                • 4.Qb4#
              • 3...Bb3
                • 4.Qxb3#
              • 3...c2
                • 4.Qb3#
          • 2...c1R
            • 3.Qe7+
              • 3...Ka4
                • 4.Qb4#
            • 3.Qa5+
              • 3...Ba4
                • 4.Qb4#
                • 4.Qc5#
            • 3.Qc5+
              • 3...Ka4
                • 4.Qb4#

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).