Ruy Lopez, Exchange Variation grandmaster play by Emanuel Lasker, and later invigorated with new ideas by Bobby Fischer. The Exchange Variation can be a powerful psychological weapon. Black is forced to play actively, which is psychologically difficult if all one needs is a draw. Lasker's famous win against Jose Raul Capablanca in the St. Petersburg 1914 chess tournament is an example of this. With a lead in the tournament, Capablanca was intent on simplifying the game to obtain a draw, but faced with the Exchange Ruy he played too passively and was routed by Lasker as a result. 4...dxc6 is the main recapture. Black's
Sicilian language either side) and had a significant influence on the Sicilian vocabulary. The following words are of Spanish derivation: Since the Italian Unification (the Risorgimento of 1860–1861), the Sicilian language has been significantly influenced by (Tuscan) Italian. During the Fascist period it became obligatory that Italian be taught and spoken in all schools, whereas up to that point, Sicilian had been used extensively in schools. This process has quickened since World War II due to improving educational standards and the impact of mass media, such that increasingly, even within the family home, Sicilian is not necessarily the language of choice. The