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Title: I'm amazed at the positive reviews below.
Review: This book is overflowing with errors in analysis. I'm not talking about out-dated analysis, which goes without saying for such an old opening book, but outright blunders. I used this book in the 1970's until I became aware of its shortcomings. Also, I've never heard a strong player recommend this book.I'd recommend the latest Modern Chess Openings (MCO 14 by de Firmian) for a one-volume reference that includes explanatory text. If you want an excellent opening book from that era, you'd be much better advised to buy "How To Open a Chess Game" by Gligoric et al, which really explains what to do in the opening.
