Tree path 2 levels King's Pawn Game › King's Knight Opening
- Chess Codex
- King's Pawn Game C20
- King's Knight Opening C40 you are here
King's Knight Opening
Overview
King's Knight Opening is a named branch in the Open Games group of chess theory, classified under ECO C40.
The Open Games group covers open games — classical 1.e4 e5 openings where both sides contest the centre directly with pawns.
Play reaches this position via 1. e4 e5 2. Nf3, after 3 plies of opening development.
It branches immediately from King's Pawn Game in the opening tree.
10 distinct sub-variations branch from this opening; prominent examples include Elephant Gambit, Gunderam Defense, Normal Variation, and others.
This is a deep theory tree with 680 total sub-variations across all depths — one of the larger branches in chess theory.
Use the board to walk through every move, check how the position has scored on Lichess, or take it head-to-head against Stockfish.
- ECO code
- C40
- Group
- Open Games (C)
- Plies
- 3
- Parent
- King's Pawn Game
- Direct variations
- 10
- Total in subtree
- 680
This overview is generated automatically from the opening's metadata. A more detailed, human-written description is on the way — and you can speed it up by suggesting one yourself.
Statistics from Lichess
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| Moves | Games | W / D / B |
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Source: Lichess Opening Explorer · cached
Description
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Variations (10)
Show all 680 sub-variations (full subtree)
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