King's Knight Opening — opening family
3 catalogued lines · ECO C40–C44
The shortest catalogued line of the family runs 1. e4 e5 2. Nf3 — the position below. The continuation chips count how many catalogued lines extend this head with each next move; explore the full tree below and play any branch against the engine.
Variations tree of the King's Knight Opening family
Click any move to jump to that position; switch branches at any point with the alternative moves. Test your knowledge plays the shown position against the engine.
Start
Main continuations
All 3 lines
| Name | ECO | Main line length |
|---|---|---|
| King's Knight Opening | C40 | 3 plies |
| King's Knight Opening: Normal Variation | C44 | 4 plies |
| King's Knight Opening: Konstantinopolsky | C44 | 5 plies |