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Title: So easy and predictable, it's monotonous
Review: Although this book is titled "Black Belt", the puzzles are equivalent to my daily paper's easy or medium puzzles. All 300 puzzles use the same basic logic rule and many have the same layout so that they actually become monotonous instead of challenging or even interesting. Many of the logic rules typically used to solve difficult puzzles are not even used here. Definitely a disappointment.
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