Problem Display
PID: 247383 (1q4n1/2r1PB2/3p2pr/P1k2p2/1pPN4/1P4pP/8/B2bQ1K1 w - - 0 1)

Hoffmann, Fritz

Stella Polaris, 1967

1q4n1/2r1PB2/3p2pr/P1k2p2/1pPN4/1P4pP/8/B2bQ1K1

#4

10 + 11


SOLUTION


  • COOKED
  • Keys
    • 1.Bd5!
      • threat
        • 2.Se6#
      • 1...Rxe7
        • 2.Qxe7
          • threat
            • 3.Se6#
          • 2...g5
            • 3.Qe3
              • threat
                • 4.Sc2#
                • 4.Se2#
                • 4.Sf3#
                • 4.Sb5#
                • 4.Sxf5#
                • 4.Sc6#
                • 4.Se6#
              • 3...Re6
                • 4.Sxe6#
    • 1.Qe4!
      • threat
        • 2.Se6#
        • 2.Qd5#
      • 1...fxe4
        • 2.Bd5
          • threat
            • 3.Se6#
          • 2...Rxe7
            • 3.Sc6
              • threat
                • 4.Bd4#
          • 2...Qc8
            • 3.Sb5
              • threat
                • 4.Bd4#
          • 2...Bg4
            • 3.Sc2
              • threat
                • 4.Bd4#
          • 2...g5
            • 3.Sf5
              • threat
                • 4.Bd4#
    • 1.e8Q!
      • threat
        • 2.Se6#
      • 1...Qxe8
        • 2.Qxe8
          • threat
            • 3.Se6#
            • 3.Qb5#
          • 2...d5
            • 3.Qe6
              • threat
                • 4.Qxd5#
                • 4.Qb6#
          • 2...Rd7
            • 3.Qc8+
              • 3...Rc7
                • 4.Qxc7#
            • 3.Qxd7
              • threat
                • 4.Se6#
                • 4.Qb5#
                • 4.Qc6#
                • 4.Qc8#
                • 4.Qa7#
                • 4.Qc7#

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).