The concept is unusual but effective. I tried it this way every evening for a week, doing 3 or 4 easy puzzles before attempting some harder ones, and it worked beautifully. Edouard clearly invested a lot of time in selecting the examples. All in all, an enjoyable book of exercises that put me in a good mood for playing: GM Matthew Sadler, New In Chess Magazine 05/2017 – 4 stars rated. Edouard’s book is an advanced workbook for the ambitious improver. John Hartmann, CHESSLIFE 08.2017.
