Tree path 4 levels King's Pawn Game › Nimzowitsch Defense › Declined Variation › Nimzowitsch Defense: Colorado Countergambit
- Chess Codex
- King's Pawn Game B00
- Nimzowitsch Defense B00
- Declined Variation B00
- Nimzowitsch Defense: Colorado Countergambit B00 you are here
Nimzowitsch Defense: Colorado Countergambit
Overview
Nimzowitsch Defense: Colorado Countergambit is a sacrificial opening line filed under ECO B00 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 begins with 4 plies and takes 1. e4 Nc6 2. Nf3 f5 to reach the canonical position.
In the opening tree, this line branches off from Nimzowitsch Defense: Declined Variation, part of the broader King's Pawn Game system.
It continues primarily into one named line, Nimzowitsch Defense: Colorado Countergambit Accepted.
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
- B00
- Group
- Semi-Open Games (B)
- Plies
- 4
- Direct variations
- 1
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
924,050 games · White 45.6% / Draw 4.1% / Black 50.3%
| Moves | Games | W / D / B |
|---|---|---|
| exf5 | 515,265 | |
| e5 | 241,349 | |
| Nc3 | 68,725 | |
| d3 | 39,191 | |
| d4 | 19,354 | |
| Bc4 | 18,118 | |
| Bb5 | 9,985 | |
| Nh4 | 5,328 |
Source: Lichess Opening Explorer · cached 2026-09-26 00:58:02
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Submissions are reviewed before publishing.