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'''[[Main Page|Home]] * [[Chess]] * [[Chess Position|Position]] * Diagonal Mirroring'''
[[FILE:Hilma af Klint - Group IX SUW, The Swan No. 7 (13945).jpg|border|right|thumb| [[:Category:Hilma af Klint|Hilma af Klint]] - Group IX SUW, The Swan No. 7
<ref>[[:Category:Hilma af Klint|Hilma af Klint]] - [https://commons.wikimedia.org/wiki/File:Hilma_af_Klint_-_Group_IX_SUW,_The_Swan_No._7_(13945).jpg Group IX SUW, The Swan No. 7], 1915, [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''Diagonal mirroring''' mirrors all [[Pieces|pieces]] along the [[Diagonals|main diagonal]] or [[Anti-Diagonals|main anti-diagonal]]. It is applicable in pawn-less [[Endgame|endgames]] with [[Castling|castling]] no longer possible. Along with [[Horizontal Mirroring|horizontal]] and/or [[Vertical Flipping|vertical flipping]], diagonal mirroring is used in pawn-less [[Endgame Tablebases|endgame tablebases]] to restrict a white king to the 10 squares of the a1-d4-d1 triangle of the board.
