Problem Display
PID: 276599 (1R6/p1Kp1pp1/k2p4/1p2p3/1Pb3P1/2P1p3/7r/1Q2n1b1 w - - 0 1)

Kupper, Josef

Schweizerische Schachzeitung, 1954

1R6/p1Kp1pp1/k2p4/1p2p3/1Pb3P1/2P1p3/7r/1Q2n1b1

#5

6 + 13


6490 yacpdb 2024

SOLUTION


  • SOUND
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qxd7
          • threat
            • 3.Qc6#
            • 3.Qc8#
            • 3.Qxd6#
          • 2...Bd5
            • 3.Qxb5#
      • 1...Rh8
        • 2.Qxd7
          • threat
            • 3.Qc6#
            • 3.Qxd6#
          • 2...e2
            • 3.Qc6+
              • 3...Bb6+
                • 4.Rxb6+
                  • 4...axb6
                    • 5.Qb7#
                    • 5.Qxb6#
            • 3.Qxd6+
              • 3...Bb6+
                • 4.Rxb6+
                  • 4...axb6
                    • 5.Qxb6#
      • 1...Be6
        • 2.Qe4
          • threat
            • 3.Qb7#
          • 2...d5
            • 3.c4
              • threat
                • 4.cxb5#
              • 3...bxc4
                • 4.Qxe5
                  • threat
                    • 5.Qd6#
                  • 4...e2
                    • 5.Qa1#
                  • 4...d6
                    • 5.Qxd6#
              • 3...Rc2
                • 4.Qxc2
                  • threat
                    • 5.Qa2#
                    • 5.cxb5#
      • 1...e2
        • 2.Qxd7
          • threat
            • 3.Qc8#
          • 2...Bb6+
            • 3.Rxb6+
              • 3...axb6
                • 4.Qc8+
                  • 4...Ka7
                    • 5.Qb7#
                • 4.Qc6
                  • threat
                    • 5.Qb7#
                    • 5.Qa8#
                    • 5.Qxb6#
                  • 4...Ka7
                    • 5.Qb7#
            • 3.Kc6
              • threat
                • 4.Qc8#
                • 4.Qb7#
              • 3...Bd5+
                • 4.Kxd5
                  • threat
                    • 5.Qc8#
                    • 5.Qb7#
          • 2...Rh8
            • 3.Qc6+
              • 3...Bb6+
                • 4.Rxb6+
                  • 4...axb6
                    • 5.Qb7#
                    • 5.Qxb6#
            • 3.Qxd6+
              • 3...Bb6+
                • 4.Rxb6+
                  • 4...axb6
                    • 5.Qxb6#

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).