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Theme: Logical

Author/Opus: This is the 22nd puzzle from our contributing puzzlemaster Ashish Kumar.

Rules: Shade some cells to create a one-cell wide snake in the grid that does not cross or touch itself, not even diagonally. The snake starts and ends at the gray circles. The numbers on the outside of the grid indicate how many cells the snake occupies in that row or column.

Answer String: For each cell in the marked rows, enter a capital letter X if it is part of the snake or a capital letter O if it is not part of the snake. Separate each row’s entry with a comma. An example entry is “OOXXXXXOXO,XXXOOOOOXX”

Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:15, Expert = 4:30