Problem Display
PID: 222072 (5K2/p2Q1pp1/3N4/2pkp3/r5r1/2P1P3/3B4/8 w - - 0 1)

Koehler, Uwe

Freie Presse, 1975

5K2/p2Q1pp1/3N4/2pkp3/r5r1/2P1P3/3B4/8

#4

6 + 8


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Ke8!
      • threat
        • 2.Qb7+
          • 2...Ke6
            • 3.Qxf7+
              • 3...Kxd6
                • 4.Qd7#
        • 2.Qxf7+
          • 2...Kc6
            • 3.Qb7+
              • 3...Kxd6
                • 4.Qd7#
      • 1...Rab4
        • 2.e4+
          • 2...Rbxe4
            • 3.Sb7+
              • 3...Kc4
                • 4.Sa5#
          • 2...Rgxe4
            • 3.Sb7+
              • 3...Kc4
                • 4.Sa5#
      • 1...Raf4
        • 2.e4+
          • 2...Rxe4
            • 3.Sb7+
              • 3...Kc4
                • 4.Sa5#
      • 1...Rgb4
        • 2.c4+
          • 2...Rxc4
            • 3.Sxf7+
              • 3...Ke4
                • 4.Sg5#
      • 1...Rgf4
        • 2.c4+
          • 2...Raxc4
            • 3.Sxf7+
              • 3...Ke4
                • 4.Sg5#
          • 2...Rfxc4
            • 3.Sxf7+
              • 3...Ke4
                • 4.Sg5#
      • 1...f5
        • 2.Qb7+
          • 2...Ke6
            • 3.Qf7+
              • 3...Kxd6
                • 4.Qd7#
        • 2.Qf7+
          • 2...Kc6
            • 3.Qb7+
              • 3...Kxd6
                • 4.Qd7#
      • 1...f6
        • 2.Qb7+
          • 2...Ke6
            • 3.Qf7+
              • 3...Kxd6
                • 4.Qd7#
        • 2.Qf7+
          • 2...Kc6
            • 3.Qb7+
              • 3...Kxd6
                • 4.Qd7#

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).