"Ioannis Simeonidis has woven a repertoire based on a virtually brand new way to meet the Spanish Opening. The fact that it has Carsen's seal of approval should in itself make the potential readership already sit up and pay attention, and that's even before we get delving into the details. It's complete because the Greek author seems to have thought through, and prepared answers to, all the evident ways for White to react. It's also surprising, as play often veers off into unknown territory in quite a startling manner. It's rare that any monograph displays what's in store so lucidly. The chapters themselves, each demonstrating how to meet each of White's main attempts, are short but to the point. They involve one illustrative game, with detailed notes, plus an intro and a conclusion. One of the most original works on the Spanish/Ruy Lopez that I've seen for years and an excellent choice for all levels."

– Glenn Flear, Grandmaster, Yearbook 138

"A good book particularly for Black players, who will be able to surprise White players that failed to buy this work. Every variation is being expertly explained and at the end of every chapter there are practical conclusions."

– Bab Wilders, Nederlands Dagblad

"The author has taken pains to make the book as user-friendly as possible for club players, but there is no getting around the fact that the play can be very forcing and, in some cases, Black needs to memorize concrete variations."

– John Donaldson, International master, International Master

"You play 1.e4 e5 but are always afraid of the Ruy Lopez? Worry no more. Carlsen's Neo Moeller is just great. The opening and the book. Simeonidis manages to deal with all questions concisely and convincingly and has also added exercises to test your new knowledge immediately. Join the World Champion in his fight against the Ruy Lopez!"

– Karsten Muller, Grandmaster