Zukertort Opening Nimzo Larsen Variation Intermediate (1.Nf3 Nf6 2.b3) in Chess

The Zukertort Opening, Nimzo-Larsen Variation is the 1.b3 branch of the Zukertort system, where White fianchettoes the bishop to b2 and often aims for pressure on the long diagonal. The exact "Nimzo-Larsen" label is used inconsistently in databases, so the defining feature is the early b3-bishop setup rather than a single universally fixed move order, which makes it an intermediate-level opening to understand by ideas, not memorized theory.