Library
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One puzzle per day. Difficulty is set when the puzzle goes live. One day each month is an Extreme challenge -- no flags allowed.
Past puzzles are fully playable. Replays do not affect your streak.
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One puzzle per day. Difficulty is set when the puzzle goes live. One day each month is an Extreme challenge -- no flags allowed.
Past puzzles are fully playable. Replays do not affect your streak.