Tree path 6 levels King's Pawn Game › Sicilian Defense › Smith-Morra Gambit › Sicilian Defense: Smith-Morra Gambit › Sicilian Defense: Smith-Morra Gambit Declined, Push Variation › Sicilian Defense: Smith-Morra Gambit Declined, Dubois Variation
- Chess Codex
- King's Pawn Game B00
- Sicilian Defense B20
- Smith-Morra Gambit B21
- Sicilian Defense: Smith-Morra Gambit B21
- Sicilian Defense: Smith-Morra Gambit Declined, Push Variation B21
- Sicilian Defense: Smith-Morra Gambit Declined, Dubois Variation B21 you are here
Sicilian Defense: Smith-Morra Gambit Declined, Dubois Variation
Overview
Sicilian Defense: Smith-Morra Gambit Declined, Dubois Variation is a gambit, classified under ECO code B21 within the Semi-Open Games family. As with all gambits, one side sacrifices material early — usually a pawn — in exchange for development, open lines, or initiative.
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 c5 2. d4 cxd4 3. c3 d3 4. c4, after 7 plies of opening development.
It is a variation of Sicilian Defense: Smith-Morra Gambit Declined, Push Variation, which itself descends from the root opening King's Pawn Game.
Step through the moves on the interactive board below, review the live Lichess statistics, or play this position against Stockfish at one of six difficulty levels.
- ECO code
- B21
- Group
- Semi-Open Games (B)
- Plies
- 7
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
129,871 games · White 50.0% / Draw 6.2% / Black 43.8%
| Moves | Games | W / D / B |
|---|---|---|
| Nc6 | 59,748 | |
| d6 | 27,750 | |
| g6 | 15,904 | |
| e6 | 10,393 | |
| e5 | 4,786 | |
| Nf6 | 4,637 | |
| d2+ | 2,831 | |
| a6 | 1,217 |
Source: Lichess Opening Explorer · cached 2026-09-26 01:35:27
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