411 REFERENCE · Wikibooks
Chess Opening Theory/1. d4/1...d6/2. c4/2...e5/3. dxe5
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Rat Defence rd nd bd qd kd bd nd rd pd pd pd pd pd pd pd pl pl pl pl pl pl pl pl rl nl bl ql kl bl nl rl
Rat Defence
At this point, black has 2 main options. /3...dxe5/, the best move according to the engine; and /3...Nc6/, the Lisbon Gambit.