Author/Opus: This is the 1st puzzle from guest contributor Ashish Kumar.
Rules: Locate a snake of unknown length in the grid, whose head, tail, and exact center are given. The snake does not touch itself, even diagonally. Numbers outside the grid indicate the number of snake cells in that row/column.
See also this example:
Answer String: Enter the length in cells of each of the snake segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma. This example has the key “211,31”.
Time Standards (highlight to view): Grandmaster = 4:00, Master = 9:30, Expert = 19:00