Mark Dvoretsky (1947-2016) is considered one of the greatest chess instructors in the modern era. He left behind a great legacy of many books and publications. At the time of his passing, there were two unpublished manuscripts he had finished (and one other co-authored with study composer Oleg Pervakov).

“Chess Tests offers chessplayers material of very high quality for working on various themes, from training combinative vision to techniques of realizing advantages. I recommend using those materials for in-depth work in the directions mentioned in the book. If you follow this advice, then this volume will become a valuable addition to your chess studies and will help you reinforce skills and knowledge you have already obtained.