Tree path 7 levels King's Pawn Game › Caro-Kann Defense › Caro-Kann Defense › Caro-Kann Defense › Caro-Kann Defense › Caro-Kann Defense › Alien Gambit
- Chess Codex
- King's Pawn Game B00
- Caro-Kann Defense B10
- Caro-Kann Defense B12
- Caro-Kann Defense B12
- Caro-Kann Defense B15
- Caro-Kann Defense B15
- Alien Gambit B15 you are here
Caro-Kann Defense: Alien Gambit
Overview
Caro-Kann Defense: Alien Gambit is a sacrificial opening line filed under ECO B15 in the Semi-Open Games group. The defining idea is the early concession of material to seize the initiative and unbalance the position.
The Semi-Open Games group covers semi-open games — replies to 1.e4 where Black declines the symmetrical 1…e5 in favour of an asymmetric pawn structure.
It is reached after 11 plies of play, with the move sequence 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Ng5 h6 6. Nxf7.
In the opening tree, this line branches off from Caro-Kann Defense, part of the broader King's Pawn Game system.
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
- B15
- Group
- Semi-Open Games (B)
- Plies
- 11
- Parent
- Caro-Kann Defense
This overview is generated automatically from the opening's metadata. Know this line well? Write a description — submissions are reviewed before publishing.
Statistics from Lichess
175,465 games · White 55.8% / Draw 3.4% / Black 40.8%
| Moves | Games | W / D / B |
|---|---|---|
| Kxf7 | 175,266 | |
| Qa5+ | 40 | |
| Bg4 | 36 | |
| e6 | 25 | |
| Qd5 | 20 | |
| g5 | 19 | |
| c5 | 15 | |
| Bf5 | 11 |
Source: Lichess Opening Explorer · cached 2026-09-26 02:24:29
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Submissions are reviewed before publishing.