Smith-Morra Gambit: Smith-Morra Accepted
The main accepted line: full development versus the extra pawn.
Few openings have shaped modern chess as much as Smith-Morra Gambit: Smith-Morra Accepted. It has decided world championships, club trophies and late-night blitz games alike.
After 7.O-O the position resolves into a fluid centre — one side has staked a central pawn the other must decide how to challenge, so the structure is still being negotiated, with the c-file fully open and the d-file half-open for White, black is ahead by a pawn.
This is a branch of the Smith-Morra Gambit. If you are new to the system, start with the parent guide and return here when you want to go one move deeper.
The moves
After 7. O-O — Smith-Morra Gambit: Smith-Morra Accepted main line
Position breakdown
A factual read of the position after the main line — the files, the centre, the pawn structure and king safety that decide how the middlegame is played. These are computed from the actual board, not generic advice.
Files
Centre control
Fluid centre
The d4/d5/e4/e5 squares — who occupies the centre decides how open the game becomes.
Pawn skeleton
Pawns only — the structure that explains every open file and majority at a glance.
Black +1
Queenside pawns 2–2
Kingside pawns 3–3
Development
2 knights & light-squared bishop active
Knight active
King safety
White king g1
Castled kingside
Black king e8
Uncastled — take care
Computed from the final position of the main line above — 13 plies, black to move.
Strategic ideas
Ideas for White
with Nc3, Nf3, Bc4 and Qb3, piling on d6/c7 and the f7 square while Black consolidates.
Ideas for Black
Return the pawn for development (...Nc6/...Nf6/...e6), or grab more material with ...with the ...e5/...a6 setups at your own risk.
Plans & pawn structures
- 1Fight for the c-file: it is the only fully open line in the position, and the side that doubles rooks on it first controls the game.
- 2White plays down the d-file — with no White pawn there, a rook lift and pawn lever turn this file into direct pressure on d7.
- 3The centre is still fluid: decide early whether to lock it with a pawn advance or dissolve it with an exchange, because that choice picks the whole middlegame plan for you.
Typical middlegame structures
The main line leads to a fluid centre — one side has staked a central pawn the other must decide how to challenge, so the structure is still being negotiated. It leaves the c-file open, the d-file half-open for White — that is where the rooks belong and where the middlegame is decided. On the pawns, White holds a kingside pawn majority, while Black holds a kingside pawn majority — the long-term trump to nurse into the endgame.
Traps & tactical motifs
The ...Qb6 tricks: grabbing on to Qb3 hits and the c-file pressure.
How to Play Against the Smith-Morra Accepted
- Neutralise the d-file before White owns it: challenge with your own rook, or close the file with a pawn so the opponent's main artery of play dries up.
- As Black, strike at the fluid centre immediately with your own central pawn or piece pressure, before the opponent locks it into a shape that favours them.
Masters & history
Study plan & who it's for
Expect to invest a weekend or two into the main lines. In return you get a fighting system that scales all the way to master level for White players.
Play through the main line above until the piece setup feels natural.
Learn the two or three critical pawn breaks for both sides.
Drill one variation at a time — always connecting moves to plans.