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1. Adding Smith Morra Gambit Accepted
The database later distinguishes between the accepted version and the declined version. But the accepted version already starts with 3.... dxc3.
2. Add Siberian Variation
https://en.wikipedia.org/wiki/Smith%E2%80%93Morra_Gambit#Morra_Gambit_Declined
It leads to the famous Siberian Trap:
https://en.wikipedia.org/wiki/Sicilian_Defence,_Smith%E2%80%93Morra_Gambit,_Siberian_Trap
Maybe this variation should be called Siberian Trap?