Problem Display
PID: 83246 (r1B5/kP4K1/b5p1/1pp5/3p4/1Q6/1p6/8 w - - 0 1)

Havel, Miroslav

Sachove umeni (Ceskoslovensky sach), 1929

r1B5/kP4K1/b5p1/1pp5/3p4/1Q6/1p6/8

#4

4 + 8


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Keys
    • 1.Qa3!
      • threat
        • 2.Qxc5+
          • 2...Kb8
            • 3.Qc6
              • threat
                • 4.bxa8Q#
                • 4.bxa8R#
              • 3...Ka7
                • 4.bxa8Q#
                • 4.bxa8R#
              • 3...Bxb7
                • 4.Qxb7#
              • 3...Ra7
                • 4.Qd6#
        • 2.bxa8Q+
          • 2...Kb6
            • 3.Qb8+
              • 3...Kc6
                • 4.Qf3#
              • 3...Bb7
                • 4.Qxb7#
          • 2...Kxa8
            • 3.Qxa6+
              • 3...Kb8
                • 4.Qb7#
        • 2.bxa8S
          • threat
            • 3.Qxa6+
              • 3...Kb8
                • 4.Qb7#
          • 2...Kxa8
            • 3.Qxa6+
              • 3...Kb8
                • 4.Qb7#
          • 2...Kb8
            • 3.Qxa6
              • threat
                • 4.Qb7#
      • 1...Kb6
        • 2.bxa8S+
          • 2...Kc6
            • 3.Qxa6+
              • 3...Kd5
                • 4.Qe6#
          • 2...Ka7
            • 3.Qxa6+
              • 3...Kb8
                • 4.Qb7#
      • 1...Kb8
        • 2.Qg3+
          • 2...Ka7
            • 3.Qc7
              • threat
                • 4.b8Q#
                • 4.b8B#
              • 3...Bxb7
                • 4.Qxb7#
              • 3...Rb8
                • 4.Qxc5#
      • 1...b4
        • 2.bxa8Q+
          • 2...Kb6
            • 3.Qa5+
              • 3...Kxa5
                • 4.Qxa6#
            • 3.Qb8+
              • 3...Kc6
                • 4.Qf3#
              • 3...Bb7
                • 4.Qxb7#
          • 2...Kxa8
            • 3.Qxa6+
              • 3...Kb8
                • 4.Qb7#

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).