Réti Opening: Réti Gambit
In the Reti - named for Richard Reti, one of the founders of Hypermodernism - White combines the move Nf3 and the fianchetto of the king's-bishop with the flank blow c2-c4. Thus he is trying to attack the black center from the side.
Pros:
- Positionally subtle
- Long-term pressure
Cons:
- Lack of immediate pressure on Black
- Less chances of a direct attack
- Black can gain space by ...d4