Main lineC40
1. e4 e5 2. Nf3
In the centre, White holds e4 while Black holds e5.
C40-C44
King's Knight Opening
3 named lines in this family, ECO C40-C44. Every one of them opens 1. e4 e5 2. Nf3, so the notes on those moves are written once, just below, instead of once per line. Under each line you get its moves and the sentences it adds that this page has not already printed. A line's own page carries up to its first 4 per-move notes in full.
The moves every line here plays
1. e4 e5 2. Nf3
- 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.
Normal VariationC44
1. e4 e5 2. Nf3 Nc6
- 2... Nc6 Develops the knight to c6, eyeing d4 and e5. It also props up the e5 pawn.
KonstantinopolskyC44
1. e4 e5 2. Nf3 Nc6 3. g3
Walk these lines on a board
An account opens every move's note in this family, the plan behind each line, and a trainer that plays the line back at you. It is free.