This opening is defined by the position shown on the board below. The moves displayed are a typical sequence that leads to it, but different sequences can reach the same position and still carry the same opening name.
Nimzo-Indian: Romanishin Variation, 6.Nxd4 O-O
This variation arises after the moves 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.g3 c5 5.Nf3 cxd4 6.Nxd4 O-O. Here, Black opts for a solid and flexible setup by castling early, prioritizing king safety and preparing to challenge White's center later.
Characteristic of the Move 6...O-O: By castling, Black completes development of the kingside and avoids immediate central tension. This move is typical in the Nimzo-Indian to maintain dynamic balance and keep options open, rather than committing to immediate pawn breaks.
Attacking or Defensive: From Black's perspective, 6...O-O is a somewhat defensive, prophylactic move focusing on king safety and solid development rather than direct attack. White, meanwhile, aims for central control and potential kingside expansion, so White’s stance is more attacking-oriented.
Center Control: This opening phase involves both sides contesting the center indirectly. White establishes a strong central presence with pawns and knights, while Black contests the center with c5 and prepares to challenge it further after castling. Overall, the opening does focus on control and influence over the center.
You can also discover how top players used Nimzo-Indian: Romanishin, 6.Nxd4 O-O to leverage key strategies to secure victories in these classic matchups.