Brian's public fiddles
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Count Tile Boards with Only Vertical Runs
Counts the number of different ways to arrange M by N tiles of C colors such that there are no three horizontal neighboring tiles, but there are three vertical neighboring tiles, on the board.
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Count Tile Rows without Three-In-A-Row Runs
Counts the number of different ways to arrange N tiles of C colors such that there are no three neighboring tiles with the same color.
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Count Color Normalized Match-Three Boards
Brute force enumeration and counting of color-normalized match-three boards.