411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...Nc6/2. Nf3/2...d6
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Williams Variation rd bd qd kd bd nd rd pd pd pd pd pd pd pd nd pd pl nl pl pl pl pl pl pl pl rl nl bl ql kl bl rl
Nimzowitsch Defence, Williams Variation
At this point, White can build a large pawn center with /3. d4/. Black can attempt to control the center with pieces with either /3...Bg4/, allowing 4. d5 Ne5 5. Nxe5, or /3...Nf6/
Nimzowitsch Defence