The position arises from the Queen's Gambit Accepted: Alekhine Defense, Borisenko-Furman Variation. White has captured a pawn on c4 with the aim to regain it later, but in the meantime, White develops pieces and controls the center with ♙e4, creating a strong pawn duo on d4 and e4. Black needs to find a way to deal with this central control.
Best Move
The Strategic ♙b5
The move ♙b5 is the best for Black. It aims to defend the pawn on c4, making it less accessible for White to recapture immediately and support further c5, fortifying Black's position. This move allows Black to develop the light-squared bishop to b7, where it can participate in controlling the center. Additionally, it prepares to expand on the queenside and can put pressure on the central pawns.
Important Alternatives
The Overambitious ♘Nf6
The move ♘Nf6 is less effective. Although it develops a piece and aims for quick kingside development, White's response of ♙e5 can immediately push the knight away, gaining additional space.
The Risky ♗Bg4
The move ♗Bg4 pins the knight to the queen, as the short-term tactical ploy can backfire if White captures on c4 with ♗Bxc4. This exchange opens White's game more comfortably and leaves the pinning bishop slightly awkward.
Critical Mistakes
The Problematic ♙e6
The ineffective ♙e6 move can lead to weaknesses in Black's pawn structure after ♗Bxc4♙c5♙d5. White's d4 pawn becomes a passed pawn with dominant influence in the center, only one step from promotion if Black is not careful.
Conclusion
In the Queen's Gambit Accepted, Alekhine Defense, Borisenko-Furman Variation, White leverages central control and active development. Black’s best approach is to challenge White’s central pawns while retaining the advanced pawn on c4 with moves like ♙b5. Other moves such as ♘Nf6 and ♗Bg4 are less desirable, offering White opportunities to solidify their advantage. The move ♙e6 can lead to substantial weaknesses and should be avoided to maintain balance in this opening.