Bishop's Opening: Lewis Countergambit, Walker Variation

1.e4 e5 2.Bc4 Bc5 3.c3 d5 4.Bxd5 Nf6 5.d4

ECO C23

The Bishop's Opening: Lewis Countergambit, Walker Variation is a chess opening line in the Bishop's Opening complex, reached after 1.e4 e5 2.Bc4 Bc5 3.c3 d5 4.Bxd5 Nf6 5.d4.

It is catalogued under code C23 in the Encyclopaedia of Chess Openings (ECO).

The defining move d4 is chosen by White on move 5.

Do you want to learn openings?

Start with a GM-authored repertoire you study move by move, then practice against a human-like AI opponent:

• Catalan Opening
• King's Indian Defense with ...e5

Every chess term used here is defined in the chess terms glossary. Browse all opening courses or the full ECO code index.