100 Tactical Patterns, containing 441 annotated examples. Name index. From the cover: Chess is 99% tactics.. This book is the long-awaited middlegame companion to 100 Endgames You Must Know, the all-time bestseller of all chess books published by New In Chess. In three hundred pages, experienced chess trainer Frank Erwich teaches you all the tactical patterns that occur most frequently, are easy to learn and explain ideas that are useful in practical games. Frank Erwich is a FIDE Master and an experienced chess trainer from the Netherlands. He wrote the best-sellers: 1001 Chess Exercises for Club Players and 1001 Chess Exercises for Advanced Club Players. Further information about the book and a sample are available at newinchess.com. The second picture shows the first page of content.