Nikolaos Ntirlis is an award-winning author, chess openings expert, and Correspondence Chess IM. He has worked as an openings adviser to numerous grandmasters, including the Danish Olympiad team.

“He finds the best line he can and that’s the repertoire! … He always takes the time to explain the rationale behind choosing a specific system and he is very good at doing so too! ... On top of all that great explanation, the analysis is simply first class with many new, interesting and unusual ideas. All in all, a really great effort worthy of the highest praise! ... this is definitely worth 5 stars!”GM Matthew Sadler, New in Chess“I have been playing and studying the English Opening, on and off, for 40 years yet this book still brought many new ideas and plans to my attention. The clear explanations are also suitable for anyone taking up 1.c4 for the first time. Therefore, I can recommend this book to both sets of players: those who already play the English and those who would like to expand their repertoires by adding 1.c4 to their arsenal of openings.”Sean Marsh, CHESS“I already indicated that opening books are not my favourite chess books and many are unread on my bookshelf. The greatest compliment I can give Nikolaos is: this book will remain on my desk and I will certainly continue to study it with great pleasure. In short: highly recommended for both c4 and d4 players. As far as I'm concerned: 5 stars.”Michel Hoetmer, www.schaaksite.nl

Nikolaos Ntirlis is an award-winning author, chess openings expert, and Correspondence Chess IM. He has worked as an openings adviser to numerous grandmasters, including the Danish Olympiad team.

“He finds the best line he can and that’s the repertoire! … He always takes the time to explain the rationale behind choosing a specific system and he is very good at doing so too! ... On top of all that great explanation, the analysis is simply first class with many new, interesting and unusual ideas. All in all, a really great effort worthy of the highest praise! ... this is definitely worth 5 stars!”GM Matthew Sadler, New in Chess“I have been playing and studying the English Opening, on and off, for 40 years yet this book still brought many new ideas and plans to my attention. The clear explanations are also suitable for anyone taking up 1.c4 for the first time. Therefore, I can recommend this book to both sets of players: those who already play the English and those who would like to expand their repertoires by adding 1.c4 to their arsenal of openings.”Sean Marsh, CHESS“I already indicated that opening books are not my favourite chess books and many are unread on my bookshelf. The greatest compliment I can give Nikolaos is: this book will remain on my desk and I will certainly continue to study it with great pleasure. In short: highly recommended for both c4 and d4 players. As far as I'm concerned: 5 stars.”Michel Hoetmer, www.schaaksite.nl