It sounds like your friend really enjoys the challenge and competition of Sudoku tournaments. Given that, there are a few gift ideas that could cater to her/his interests:
1. Sudoku Puzzle Book: One of the easiest and most thoughtful gifts you could get your friend is a book of Sudoku puzzles. Puzzle books are inexpensive and can provide days of enjoyment. Look for a book with a variety of puzzle difficulties, so your friend can challenge themselves in new ways.
2. Sudoku Board Game: If your friend likes board games, you could consider getting them a Sudoku board game. There are several different variations of Sudoku board games available, many of which offer a timed component, like a tournament. They can play alone or with family and friends and work to solve puzzles in a set amount of time.
3. Personalized Sudoku Board: A unique idea is to consider creating a personalized Sudoku board for your friend. You could create a board with custom photos or colors that mean something to them or their puzzle-solving abilities. A personalized board is a very thoughtful gift that will be treasured for years to come.
4. Private Tutoring Session with a Pro: If your friend is really into Sudoku tournaments, consider getting them a private tutoring session with a professional puzzle-solver. This would be a unique and thoughtful gift that would allow them to learn new strategies to improve their gameplay and tournament status.
5. Subscription to Sudoku App or Website: Finally, you could consider gifting your friend a subscription to a Sudoku app, website or competition. With this, they can access daily challenges, puzzle archives and opportunities to participate in online or in-person tournaments.
Ultimately, the best gift for your friend is going to depend on their puzzle-solving preferences, and how they like to compete. But with these ideas in mind, you’re sure to come up with something perfect for the Sudoku-loving friend in your life.
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