Fourth edition (2013), Hardcover, 660pp. (Formerly known as Anthology of Chess Combinations) A beautiful and powerful hardcover book at 660 pages that offers years of enjoyment and training material to test the reader's tactical ability. ECC4 is a completely revised and updated edition of one of the fundamental books about the art of combinational chess. In comparison to the third edition there are 292 more examples. The content represents the work of the Chess Informant Editorial Board of experienced grandmasters and international masters. Inside there are ten themes with 3,001 combinations subdivided into three difficulty levels