Problem Display
PID: 266549 (7b/2p2R2/2Ppp3/2B1k3/KQ1Nr2P/1p3P2/1P6/1b6 w - - 0 1)

Seilberger, Johann Joseph Petrus Adrianus

Probleemblad, 1950

7b/2p2R2/2Ppp3/2B1k3/KQ1Nr2P/1p3P2/1P6/1b6

#3

9 + 8


SOLUTION


  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Qxd4#
    • 1...dxc5
      • 2.Qxc5#
  • Tries
    • 1.Bxd6+?
      • 1...Kd5
        • 2.Qc5#
      • 1...cxd6!
    • 1.Ba7?
      • threat
        • 2.Qa5+
          • 2...d5
            • 3.Qxc7#
      • 1...Bf6
        • 2.Qa5+
          • 2...Kf4
            • 3.Qg5#
          • 2...d5
            • 3.Qxc7#
      • 1...d5
        • 2.Bb8
          • threat
            • 3.Bxc7#
      • 1...Bd3!
  • Keys
    • 1.Qa5!
      • threat
        • 2.Ba7+
          • 2...d5
            • 3.Qxc7#
      • 1...Rxd4+
        • 2.Bb4+
          • 2...Rd5
            • 3.Bc3#
          • 2...d5
            • 3.Qxc7#
      • 1...Kd5
        • 2.Bb6+
          • 2...Kc4
            • 3.Qb5#
        • 2.Ba7+
          • 2...Kc4
            • 3.Qb5#
      • 1...Bf6
        • 2.Ba7+
          • 2...Kf4
            • 3.Qg5#
          • 2...d5
            • 3.Qxc7#
      • 1...Bd3
        • 2.Bxd6+
          • 2...Kxd4
            • 3.Qc5#
          • 2...Kxd6
            • 3.Rd7#

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).