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Game Courier. PHP script for playing Chess variants online.[All Comments] [Add Comment or Rating]
Fergus Duniho wrote on 2021-10-07 UTC

While the right-shifting was more readily apparent, I also checked for vertical shifting by creating a position where a Rook covered a whole file. What I found is that there is also downward-shifting. No matter whether the board is rotated for Black, the empty gifs in the lower right are closer to the lower right corner than empty gifs in spaces more to the left or top. This is consistent with right and down being the two directions that increase as the x or y position of the image increases, since 0,0 is in the top left corner.