This workbook offers over five hundred carefully selected exercises to accompany the book 100 Tactical Patterns You Must Know.Experienced chess trainer Frank Erwich has not only identified the 100 most important tactical patterns, he has also collected hundreds of exercises for you to train these patterns. Solving these puzzles will drive home the key ideas, refresh your knowledge and improve your technique. It is probably best to study the manual and workbook together, but you can also use the workbook as a stand-alone training tool as each pattern is summarised.