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Chess Opening Theory/1. e4/1...c5/2. Nf3/2...Nc6/3. a3

Delayed Mengarini Variation
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Position in Forsyth-Edwards Notation (FEN)
Moves: 1. e4 c5 2. Nf3 Nc6 3. a3

The delayed Mengarini Variation (French Wing Variation) is a variation of the Sicilian Defense where White plays a move that delays development for an interesting idea: playing the move b4. The move a3 itself is not the best choice since it does not control the center and does not develop any pieces.

Black can respond in several ways, including 3...g6 to fianchetto the dark-squared bishop, 3...Nf6, 3...d6, and 3...e5.


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Chess Opening Theory
1. e4 e5
Open games
3. Bb5
Spanish
3. Bc4
Italian
3. Nc3 Nf6
Four knights
Other
2...Nf6
Russian
2...d6
Philidor
Other
2. f4
King's gambit
2. Nc3
Vienna
Other
1. e4 c5
Sicilian
1. e4 e6
French
1. e4 c6
Caro-Kann
1. e4 other
1. d4 d5
Closed games
1. d4 Nf6
Indian
1. d4 f5
Dutch
1. d4 ...other:
Flank
Unorthodox