ModernChess, Opening Databases, 2021.
ChessBase file
In his second database, GM Mihail Marin completes the examination of Nimzo-Indian Defense. After dealing with the two main moves (4.Qc2 and 4.e3) in Part 1, he now analyzes all other possibilities for White. The Romanian grandmaster stays loyal to his style and suggests some less explored systems based on solid positional grounds. Following his repertoire, you shouldn't memorize long and forced lines but build a fundamental understanding of the arising positions and structures. The database contains 20 theoretical chapters
part 1