Nimzo Indian Defense Spielmann Variation (1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qb3) Chess Puzzles

The nimzo indian defense spielmann variation is a specific Nimzo-Indian line associated with Spielmann’s approach, where Black aims for active piece play while keeping the queenside structure flexible. I don’t have a reliably documented, universally agreed exact move order for the “Spielmann Variation” label in this exact Lichess family, so I can’t safely quote a precise sequence without risking inaccuracy. What you can look for instead is the defining Nimzo-Indian feature: Black’s bishop pressure on the c3-square after the early …Bb4, combined with a plan to challenge White’s center and devel