What is nimzowitch defense?

Nimzowitsch Defense is a chess opening that begins with the moves 1.e4 Nc6. It is classified as an unconventional opening as it does not follow the mainline approaches of chess. The name Nimzowitch Defense is derived from the name of the Latvian-born chess master Aron Nimzowitsch, who popularized this opening in the early 1900s.

The Nimzowitsch Defense is flexible and can lead to various lines of play. Black's aim is to control the center of the board while avoiding the traditional pawn structures. The Knight on c6 restricts the movement of White's pawns and can be a disruptive force in the position. Black can also develop their pieces in a non-standard way, often relocating the Knight to d4 or b4.

One of the drawbacks to the Nimzowitsch Defense is that it can be difficult to play for inexperienced players, primarily due to the unfamiliar pawn structure and piece placements. White can take advantage of Black's deviations to obtain a more favorable position.

Overall, the Nimzowitsch Defense is an interesting alternative to traditional chess openings, and it requires creative thinking and tactical play to succeed with it.