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Frank Erwich is a FIDE Master and an experienced chess trainer from the Netherlands. 1001 Chess Exercises for Club Players. -- "CHESS Magazine". Reprinted with an improved design. He teaches how to reach the next level of identifying weak spots in the position of your opponent, recognizing patterns of combinations, visualizing tricks and calculating effectively.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.