Tree path 2 levels King's Pawn Game › Lemming Defense
- Caissa Codex
- King's Pawn Game B00
- Lemming Defense B00 you are here
Lemming Defense
Overview
Lemming Defense is a specific line in the Semi-Open Games family (ECO B00), arising from a recognised theoretical 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.
Play reaches this position via 1. e4 Na6, after 2 plies of opening development.
The line is a first-level refinement of King's Pawn Game.
Explore the position on the interactive board, study its real-world results from Lichess, and challenge the engine when you are ready.
- ECO code
- B00
- Group
- Semi-Open Games (B)
- Plies
- 2
- Parent
- King's Pawn Game
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
108,494 games · White 50.9% / Draw 3.9% / Black 45.2%
| Moves | Games | W / D / B |
|---|---|---|
| d4 | 36,654 | |
| Bxa6 | 31,048 | |
| Nf3 | 21,705 | |
| Nc3 | 4,990 | |
| Bc4 | 4,252 | |
| f4 | 3,858 | |
| d3 | 1,500 | |
| Qf3 | 941 |
Source: Lichess Opening Explorer · cached 2026-09-26 00:49:48
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Submissions are reviewed before publishing.