Theme: Clue Symmetry & Logic (prepared for the 2017 Puzzle Grand Prix)
Author/Opus: This is the 279th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Standard Cave rules.
Answer String: Enter the length in cells of each of the cave segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma.
Time Standards (highlight to view): Grandmaster = 6:00, Master = 18:00, Expert = 36:00 (*Estimates from competition scoring, not our usual process)
Note: Follow this link for other classic Caves. If you are new to this puzzle type, here are our easiest Cave Puzzles to get started on. More Cave puzzles can be found in The Art of Puzzles and in Roger Barkan’s Colossal Cave Collection.