Really, among the open games the only opening with which White can really fight for an advantage in the long term is the Ruy Lopez. But in order to make this serious effort, he has buckle down and learn a whole series of sub-variations.

That is what the professionals do, including of course Viktor Bologan, who now reveals the secrets of his own grandmaster repertoire.

Winning with Ruy Lopez vol. 1: In the first part the top Moldovan player deals with systems in which Black avoids the main continuation 3...a6 on his third move. These include exotic lines such as 3...Nd4, 3...Nge7, 3...g6 and 3...Bc5, which should however not be under-estimated.

In 3...f5 (the Schliemann Defence) he examines a system which has even found its way into the repertoire of many a top player. But the most important variation starts with 3...Nf6 and in its main move order leads to the Berlin Wall.

Wining with the Ruy Lopez vol. 2: On his second Ruy Lopez DVD Viktor Bologan shows how things continue after 3...a6 4.Ba4.

Black has some possible deviations before we reach the main lines which are dealt with in Part 3. These include the solid Steinitz Defence and the Archangelsk Variation which has again been brought up to date.

In the Open Ruy Lopez quite different types of positions are reached - and White need to understand these too. And our author prefers to avoid the Marshall Attack - so he suggests the Anti-Marshall beginning with 8.h3.

Wining with the Ruy Lopez vol. 3: For many the Ruy Lopez really only begins after the moves 3...a6 4.Ba4 Nf6 5.0-0 Be7 6.Re1 b5 7.Bb3 d6 8.h3 0-0 9.c3 - the starting point for Bologan’s third DVD.

Black then has a whole host of variations, but the ensuing structures have much in common and if you are equipped with some insider tips you will be able to take the correct decisions which can frequently only be made on a basis of generalised evaluations

Nowadays, anyone who plays the Ruy Lopez must know above all what he is going to play against this modern defence.

Viktor Bologan is a pupil of the top Moldovan trainer Vecheslav Chebanenko. For many years Bologan has been the number 1 in Moldova and has represented his country in nine chess Olympiads.

His greatest successes were in 2003, when he first of all won the Aeroflot Open and then the famous Dortmund Tournament, ahead of Kramnik and Anand. The Moldovan has extensive experience as a trainer and has also published his first books.

System requirements: Pentium-Processor at 300 Mhz or higher, 64 MB RAM, Windows XP, Windows Vista, Windows 7, DVD drive, mouse, soundcard.