King's Knight Opening

1.e4 e5 2.Nf3

ECO C40

The King's Knight Opening is a chess opening reached after 1.e4 e5 2.Nf3, catalogued under code C40 in the Encyclopaedia of Chess Openings (ECO).

The defining move Nf3 is chosen by White on move 2.

2 named continuations branch from this position, including the Konstantinopolsky and the Normal Variation.

Named variations

• King's Knight Opening: Konstantinopolsky — ECO C44
• King's Knight Opening: Normal Variation — ECO C44

Study this line with a grandmaster

This position is covered in the Scotch Opening course: a GM-authored repertoire you study move by move, then practice against a human-like AI opponent.

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