Dvoretsky: Chess TestsMark 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 At the time of his passing, there were two unpublished manuscripts he had finished (and one other co authored with study composer Oleg Pervakov).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