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
Tactical role-playing game to equip them, change classes, train them, depending on the game. A number of early role-playing video games used a tactical form of combat, such as "Tunnels of Doom" (1982) and "" (1983), as well as "The Dragon and Princess" (1982) and "Bokosuka Wars" (1983), which introduced party-based, tiled combat to America and Japan, respectively. Further, tactical RPGs are descendents of tabletop role-playing games and wargames, such as "Dungeons & Dragons" and "Chainmail", which were mainly tactical in their original form. Nevertheless, much of the development of tactical RPGs has diverged on each side of the Pacific, and the term