By playing d6, the player enters the Ruy Lopez: Morphy Defense, Steinitz Deferred, a system within the Ruy Lopez complex. Instead of the usual g6, the player opts for d6. It succeeds by sacrificing popularity for a statistically stronger weapon. This move solidifies the center without committing.
The strategic battle ahead will be defined by the struggle to control the long diagonal to exert lasting pressure. Data analysis shows a 42% win rate for White, indicating White advantage.
Also known as: Spanish: Steinitz Deferred, Spanish Game, Morphy Defense, Russian Defense, Ruy Lopez; C79; Lasker Defense
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