Ruy Lopez · C61

Bird Variation, Paulsen Variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. O-O Ne7

The structure hands Black the half-open e-file - rook pressure down it is a standing plan. Black's pawn on d7 is pinned against the king.

The first 4 moves, explained

• 1. e4 Stakes a claim in the centre, controlling d5, and frees the bishop and queen.
• 1... e5 Stakes a claim in the centre, controlling d4, and frees the bishop and queen.
• 2. Nf3 Develops the knight to f3, eyeing d4 and e5.
• 2... Nc6 Develops the knight to c6, eyeing d4 and e5. It also props up the e5 pawn.

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