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
Ruy López de Dávalos 18-year-old king Charles, born in Ghent, Flanders, an aspiring, and successful, Holy Roman Emperor. A few male descendants of the family emigrated earlier to Italy, including Malta island, around 1430 and became there important people of the nobility for over 400 years or so, using names approaching the Spanish spelling of the name, but no necessarily with the same exact graphical signs. The genealogical descent is as follows: 1. Ruy Lopez d'Avalos, Count of Ribadeo, Constable of Castile (1357–1421), married firstly to Maria Gutierrez de Fontechecha; secondly 1395 to Elvira de Guevara; married thirdly to Constanza de Tovar y Toledo,