Nimzovich defence is the very good defence, especially when not expected by opponent. Black rapidly develops the King's flank, castles, and is ready to fight for the center. Meanwhile, White arranges the attack on the Queen's flank. I used to like this debut and play it in the long lasting tournament games, but then this debut was relegated to oblivion for me. I should actually refresh my knowledge of it as the repetition is mother of learning.