Problem Display
PID: 36223 (8/Kp2N3/1p2p1Rp/bpr1k2p/1r2p3/4P3/8/1b1Q4 w - - 0 1)

Fraenkel, Febus Hirsch

Hamburgischer Correspondent, 1930

8/Kp2N3/1p2p1Rp/bpr1k2p/1r2p3/4P3/8/1b1Q4

#4

5 + 12


3773 FIDE Album (1914-1944) (II) 1972

SOLUTION


  • COOKED
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qh2#
      • 1...Rc2
        • 2.Qd8
          • threat
            • 3.Qb8+
              • 3...Rc7
                • 4.Qxc7#
          • 2...Rc1
            • 3.Qb8+
              • 3...Rc7
                • 4.Qxc7#
          • 2...Rd2
            • 3.Qb8+
              • 3...Rd6
                • 4.Qh8#
            • 3.Qxd2
              • threat
                • 4.Qh2#
              • 3...Rb2
                • 4.Qd4#
          • 2...Rc3
            • 3.Qb8+
              • 3...Rc7
                • 4.Qxc7#
          • 2...Rcc4
            • 3.Qb8+
              • 3...Rc7
                • 4.Qxc7#
          • 2...Rc5
            • 3.Qb8+
              • 3...Rc7
                • 4.Qxc7#
          • 2...Rc6
            • 3.Qb8+
              • 3...Rd6
                • 4.Qh8#
              • 3...Rc7
                • 4.Qxc7#
          • 2...Rc8
            • 3.Qxc8
              • threat
                • 4.Rxe6#
                • 4.Qxe6#
                • 4.Qc7#
                • 4.Qb8#
              • 3...Kd6
                • 4.Rxe6#
          • 2...Rbc4
            • 3.Qd7
              • threat
                • 4.Rxe6#
                • 4.Qxe6#
              • 3...Rc6
                • 4.Qd4#
    • 1.Qd8!
      • threat
        • 2.Qb8+
          • 2...Rc7
            • 3.Qxc7#
      • 1...Rbc4
        • 2.Sf5
          • threat
            • 3.Qf6+
              • 3...Kd5
                • 4.Qxe6#
            • 3.Qd6+
              • 3...Kxf5
                • 4.Qxe6#
            • 3.Sxh6
              • threat
                • 4.Rg5#
        • 2.Rf6
          • threat
            • 3.Sg6#
          • 2...Kxf6
            • 3.Qf8+
              • 3...Ke5
                • 4.Qf4#
              • 3...Kg5
                • 4.Qf4#

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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).