The variation against the Ruy Lopez presented in meticulous detail by Alexei Shirov (3...a6 4.Ba4 Nf6 5.0-0 b5 6.Bb3 Bc5) has so far had no recognised name and Shirov himself has named it after Vladislav Tkachiev, the 2007 European champion, the Tkachiev Ruy Lopez. In fact the grandmaster from Kazakhstan has played a few important games with this system, but it would have been just as justified to name the variation after our author himself, because since 1996 Shirov has not only played numerous games with it, but recently he has turned it into his main weapon against 1.e4 - with splendid success and a lot of imitators. The super grandmaster now shares all this collected knowledge with his viewers. Apart from the Exchange Variation (to which Shirov also devotes a model game) White has hardly any serious deviation after 3.Bb5, making of the Tkachiev Variation a good weapon against the Ruy Lopez. Video running time: 6 hours.