Problem Display
PID: 122226 (5R1N/1n4Bk/1K4NP/8/8/5n2/8/8 w - - 0 1)

Siers, Theodor

2nd Comm., Lippische Landeszeitung, 1950

5R1N/1n4Bk/1K4NP/8/8/5n2/8/8

#4

6 + 3


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Keys
    • 1.Rd8!
      • threat
        • 2.Sf8+
          • 2...Kg8
            • 3.Sd7+
              • 3...Kh7
                • 4.Sf6#
              • 3...Sxd8
                • 4.Sf6#
      • 1...Sxd8
        • 2.Sf8+
          • 2...Kg8
            • 3.Sd7
              • threat
                • 4.Sf6#
              • 3...Kh7
                • 4.Sf6#
      • 1...Sd4
        • 2.Sf8+
          • 2...Kg8
            • 3.Sd7+
              • 3...Kh7
                • 4.Sf6#
              • 3...Sxd8
                • 4.Sf6#
            • 3.Rd7
              • threat
                • 4.h7#
      • 1...Se1
        • 2.Sf8+
          • 2...Kg8
            • 3.Sd7+
              • 3...Kh7
                • 4.Sf6#
              • 3...Sxd8
                • 4.Sf6#
            • 3.Rd7
              • threat
                • 4.h7#
        • 2.Rd7
          • threat
            • 3.Sf8+
              • 3...Kg8
                • 4.h7#
            • 3.Bf8+
              • 3...Kg8
                • 4.Rg7#
                • 4.h7#
          • 2...Kg8
            • 3.Sf8
              • threat
                • 4.h7#
            • 3.Ba1
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Bb2
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Bc3
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Bd4
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Be5
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Bf6
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Bf8
              • threat
                • 4.Rg7#
                • 4.h7#
      • 1...Sg1
        • 2.Sf8+
          • 2...Kg8
            • 3.Sd7+
              • 3...Kh7
                • 4.Sf6#
              • 3...Sxd8
                • 4.Sf6#
            • 3.Rd7
              • threat
                • 4.h7#
        • 2.Rd7
          • threat
            • 3.Sf8+
              • 3...Kg8
                • 4.h7#
            • 3.Bf8+
              • 3...Kg8
                • 4.Rg7#
                • 4.h7#
          • 2...Kg8
            • 3.Sf8
              • threat
                • 4.h7#
            • 3.Ba1
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Bb2
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Bc3
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Bd4
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Be5
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Bf6
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Bf8
              • threat
                • 4.Rg7#
                • 4.h7#
      • 1...Sh2
        • 2.Sf8+
          • 2...Kg8
            • 3.Sd7+
              • 3...Kh7
                • 4.Sf6#
              • 3...Sxd8
                • 4.Sf6#
            • 3.Rd7
              • threat
                • 4.h7#
        • 2.Rd7
          • threat
            • 3.Sf8+
              • 3...Kg8
                • 4.h7#
            • 3.Bf8+
              • 3...Kg8
                • 4.Rg7#
                • 4.h7#
          • 2...Kg8
            • 3.Sf8
              • threat
                • 4.h7#
            • 3.Ba1
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Bb2
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Bc3
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Bd4
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Be5
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Bf6
              • threat
                • 4.Rg7#
                • 4.h7#
            • 3.Bf8
              • threat
                • 4.Rg7#
                • 4.h7#
      • 1...Sh4
        • 2.Sf8+
          • 2...Kg8
            • 3.Sd7+
              • 3...Kh7
                • 4.Sf6#
              • 3...Sxd8
                • 4.Sf6#
            • 3.Rd7
              • threat
                • 4.h7#
      • 1...Sa5
        • 2.Sf8+
          • 2...Kg8
            • 3.Sd7+
              • 3...Kh7
                • 4.Sf6#
      • 1...Sc5
        • 2.Sf8+
          • 2...Kg8
            • 3.Sd7+
              • 3...Kh7
                • 4.Sf6#
      • 1...Sd6
        • 2.Sf8+
          • 2...Kg8
            • 3.Sd7+
              • 3...Kh7
                • 4.Sf6#
              • 3...Se8
                • 4.Sf6#

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).