The Ruy Lopez: Closed, Chigorin Defense is characterized by solid pawn structures and maneuvering for central control. In this position, after 9. ♘Na5, Black aims to put pressure on the bishop stationed at b3 and potentially undermine White's control over the center through pieces.
Best Move
The Strategic ♗Bc2
♗Bc2 is the optimal choice. By retreating the bishop to c2, White avoids any exchanges and maintains the valuable piece on a diagonal aimed at Black's kingside. The move also supports potential central pawn thrusts like ♙d4 in the future, increasing control over the center and retaining flexibility. This position typically transitions into established variations such as the Borisenko Variation, where White seeks to leverage the extra space.
Important Alternatives
The Ambitious ♙a4
Playing ♙a4 immediately challenges Black's pawn structure by targeting the b5 pawn. While the move intends to destabilize Black's setup, it subjects White to tactical possibilities after ♘Nxb3♕Qxb3♗Be6. White might still maintain equality, but Black gains a tempo by developing with threats in mind.
The Centralizing ♙d4
♙d4 is a common central break in similar pawn structures. However, it might not be as effective here due to Black's ability to respond with ♘Nxb3♙axb3♗Bb7, aligning Black’s bishop on the b7 to apply pressure on the weakened pawn chain.
Critical Mistakes
The Passive ♙d3
♙d3 is considered too passive as it doesn’t challenge Black’s setup or improve the coordination of White's pieces. After ♘Nxb3♕Qxb3♙h6, Black is able to consolidate their position, preparing to advance with moves like ♙c5 with good prospects.
The Misguided ♕Qe2
Using ♕Qe2 is suboptimal as it prematurely commits the queen without addressing Black's threats. Capturing the bishop with ♘Nxb3♙axb3, Black can then further advance their center while White's queen recapture loses time.
Conclusion
The Closed Ruy Lopez: Chigorin Defense emphasizes piece coordination and control over the center. The move ♗Bc2 stands as the most strategically sound choice, aligning with the principles of strong piece placement and central pressure. Players should be wary of less dynamic options like ♙d3 or ♕Qe2, as they fail to capitalize on White's position in this richly strategic opening.