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Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bb5/3...a6/4. Bxc6/4...dxc6/5. d4
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Ruy Lopez: Exchange Variation rd bd qd kd bd nd rd pd pd pd pd pd pd pd pd pl pl nl pl pl pl pl pl pl rl nl bl ql kl rl Ruy Lopez
Ruy Lopez: Exchange Variation
Against this move, Black should play /5...exd4/, as he shouldn't allow White to play Nxe5 or dxe5 which would favor White.
Theory table
.
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.d4
5
...
exd4
=/+
References
Ruy Lopez