Problem Display
PID: 221995 (8/R1Bpp3/2kp2N1/3br1n1/Kpp2p2/1Nb2p2/7Q/8 w - - 0 1)

Baumgarten, Ernst

Freie Presse, 1974

8/R1Bpp3/2kp2N1/3br1n1/Kpp2p2/1Nb2p2/7Q/8

#4

6 + 12


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Qxf4!
      • threat
        • 2.Sxe7+
          • 2...Rxe7
            • 3.Qxd6#
      • 1...Se4
        • 2.Qe3
          • threat
            • 3.Sa5#
            • 3.Qb6#
          • 2...Sc5+
            • 3.Qxc5+
              • 3...dxc5
                • 4.Sa5#
          • 2...Bf7
            • 3.Qb6+
              • 3...Kd5
                • 4.Sf4#
          • 2...Bg8
            • 3.Qb6+
              • 3...Kd5
                • 4.Sf4#
          • 2...Bd4
            • 3.Sxd4+
              • 3...Kc5
                • 4.Ra5#
      • 1...Sf7
        • 2.Qxe5
          • threat
            • 3.Sxe7#
          • 2...cxb3
            • 3.Sxe7+
              • 3...Kc5
                • 4.Qxd5#
        • 2.Qe3
          • threat
            • 3.Sa5#
            • 3.Qb6#
          • 2...Rxe3
            • 3.Ba5
              • threat
                • 4.Rc7#
              • 3...Be4
                • 4.Sxe7#
              • 3...Be6
                • 4.Sxe7#
          • 2...Be4
            • 3.Qb6+
              • 3...Kd5
                • 4.Sf4#
          • 2...Bd4
            • 3.Sxd4+
              • 3...Kc5
                • 4.Ra5#

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).