Nimzo-Indian Defense: Normal Variation, Gligoric System, Smyslov Variation

The Nimzo-Indian Defense: Normal Variation, Gligoric System, Smyslov Variation is a strategic chess opening where Black aims to control the center and develop harmoniously, while White focuses on exerting pressure and maintaining flexibility.

The Nimzo-Indian Defense: Normal Variation, Gligoric System, Smyslov Variation begins with 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 Qe7.

In this opening, Black's third move, Bb4, pins White's knight on c3, preventing the immediate pawn break with d4. Black's fourth move, e6, supports the central pawn on d5 and prepares to develop the light-squared bishop to e7 or fianchetto it to g7. White's fifth move, Bd3, develops the bishop and prepares to castle kingside.

Black's sixth move, Nc6, challenges White's control over the d4 square and prepares to reinforce the central pawn with d5. White's seventh move, O-O, completes the kingside development and prepares to connect the rooks.

Black's eighth move, c5, aims to undermine White's central pawn structure and gain more control over the center. White's ninth move, O-O, solidifies the kingside position and prepares to bring the rooks into play.

Finally, Black's tenth move, dxc4, opens up the center, creating asymmetry in the pawn structure. Black's eleventh move, Qe7, connects the rooks and prepares to potentially support the pawn on e6 with f5 or f6.

Overall, the Nimzo-Indian Defense: Normal Variation, Gligoric System, Smyslov Variation is a flexible and strategic opening where both sides aim to control the center and develop their pieces harmoniously, setting the stage for a complex middlegame.