Alexander Alekhine to the game, his chess ideas. I am sure that the future belongs to Alekhine chess." In 2012, Levon Aronian said that he considers Alekhine the greatest chess player of all time. Several openings and opening variations are named after Alekhine. In addition to the well-known Alekhine's Defence (1.e4 Nf6) and the Albin-Chatard-Alekhine Attack in the "orthodox" Paulsen variation of the French Defense, there are Alekhine Variations in: the Budapest Gambit, the Vienna Game, the Exchange Variation of the Ruy Lopez, the Winawer Variation of the French Defense; the Dragon Variation of the Sicilian Defense, the Queen's Gambit Accepted, the
Ruy Lopez a significant advantage against it in the 18th game. It is solid but slightly passive. Confusingly 9...Nd7 is also called the Chigorin Variation so there are two variations of the Ruy Lopez with that name, but 9...Na5 is the move more commonly associated with Chigorin. This defense is also known as the Keres Variation, after Paul Keres. The Kholmov Variation, 9...Be6, was popular in the 1980s but is now rarely played. The main line runs 10.d4 Bxb3 11.axb3 (11.Qxb3 is another option) exd4 12.cxd4 d5 13.e5 Ne4 14.Nc3 f5 15.exf6 Bxf6 16.Nxe4 dxe4 17.Rxe4 Qd5 18.Rg4, when it has been