Tree path 4 levels King's Pawn Game › King's Knight Opening › Latvian Gambit › Mason Countergambit
- Chess Codex
- King's Pawn Game C20
- King's Knight Opening C40
- Latvian Gambit C40
- Mason Countergambit C40 you are here
Latvian Gambit: Mason Countergambit
Overview
Latvian Gambit: Mason Countergambit is a sacrificial opening line filed under ECO C40 in the Open Games group. The defining idea is the early concession of material to seize the initiative and unbalance the position.
The Open Games group covers open games — classical 1.e4 e5 openings where both sides contest the centre directly with pawns.
The line arises from 5 plies — specifically the moves 1. e4 e5 2. Nf3 f5 3. d4.
In the opening tree, this line branches off from Latvian Gambit, 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
- C40
- Group
- Open Games (C)
- Plies
- 5
- Parent
- Latvian Gambit
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
284,134 games · White 49.6% / Draw 3.8% / Black 46.6%
| Moves | Games | W / D / B |
|---|---|---|
| fxe4 | 209,270 | |
| exd4 | 38,824 | |
| Nf6 | 16,414 | |
| d6 | 8,606 | |
| Nc6 | 6,604 | |
| d5 | 2,290 | |
| f4 | 827 | |
| Qf6 | 269 |
Source: Lichess Opening Explorer · cached 2026-09-26 01:12:40
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Submissions are reviewed before publishing.