411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bc4/3...Bc5/4. c3/4...Nf6/5. d4
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Center Attack rd bd qd kd rd pd pd pd pd pd pd pd nd nd bd pd bl pl pl pl nl pl pl pl pl pl rl nl bl ql kl rl
Center Attack
5. d4
White attacks the center with 5. d4, attempting to create a strong pawn center with the d4 and e4 pawns. Black has to respond with exd4, or else surrender the entire center to White.
Theory table
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4
5
6
7
8
...exd4
cxd4Bb4+
Bd2Nxe4
Bxb4Nxb4
=