411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...c5/2. d4/2...cxd4/3. c3/3...dxc3/4. Nxc3
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Smith-Morra gambit accepted B21 Sicilian defence → Smith-Morra gambit → 3...dxc3
4. Nxc3
White is now ready to develop all their minor pieces to natural squares. Their next few moves are straight-forward developing moves: Nf3, Bc4, O-O. Meanwhile, Black will still have to make some pawns moves before they can catch up.
Black has a few different moves that are mainly just changes in move order, but 4...Nc6 seems to be the most flexible starting point, as it is a good developing move that controls d4 and e5. if 4...Nf6?! instead, then 5. e5 is a free tempo move to embarrass Black.
Theory table
1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3
4
5
Smith-Morra Gambit Accepted
Nc6
Nf3d6
e6
Nf3d6
References
See also
Smith-Morra Gambit