Problem Display
PID: 55471 (8/1N1Np1K1/1Pk2p2/8/2B5/5pb1/8/7Q w - - 0 1)

Berg, Wolfgang

Sonnecken, Albrecht

Troll, 1992

8/1N1Np1K1/1Pk2p2/8/2B5/5pb1/8/7Q

#3

6 + 5


SOLUTION


  • SOUND
  • Tries
    • 1.Sa5+?
      • 1...Kd6
        • 2.Qd1#
      • 1...Kxd7!
    • 1.Sbc5?
      • threat
        • 2.Qxf3+
          • 2...Kd6
            • 3.Qd5#
      • 1...Kd6
        • 2.Qd1+
          • 2...Kc6
            • 3.Qd5#
      • 1...e5
        • 2.Qd1
          • threat
            • 3.Qd5#
      • 1...e6!
    • 1.Sd8+?
      • 1...Kd6
        • 2.Qd1#
      • 1...Kxd7!
    • 1.Qd1?
      • threat
        • 2.Sa5#
        • 2.Sd8#
        • 2.Qd5#
      • 1...Bd6
        • 2.Sbc5
          • threat
            • 3.Qxf3#
            • 3.Qa4#
            • 3.Qd5#
      • 1...Kxb7!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qc8+
          • 2...Bc7
            • 3.Qxc7#
      • 1...Kxb7
        • 2.Qa8+
          • 2...Kxa8
            • 3.Bd5#
      • 1...Kxd7
        • 2.Qe8+
          • 2...Kxe8
            • 3.Bb5#
      • 1...Bh2
        • 2.Qc8+
          • 2...Bc7
            • 3.Qxc7#
      • 1...Bf4
        • 2.Qc8+
          • 2...Bc7
            • 3.Qxc7#
      • 1...Be5
        • 2.Qc8+
          • 2...Bc7
            • 3.Qxc7#
      • 1...Bd6
        • 2.Sd8+
          • 2...Kxd7
            • 3.Be6#
        • 2.Qc8+
          • 2...Bc7
            • 3.Qxc7#
      • 1...Bc7
        • 2.Qc8
          • threat
            • 3.Qxc7#
      • 1...Bb8
        • 2.Qc8+
          • 2...Bc7
            • 3.Qxc7#

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).