Queens Indian Accelerated (1.d4 Nf6 2.c4 b6) Chess Puzzles

Queens Indian Accelerated is a Queens Indian line where White tries to “accelerate” development and central play, typically by committing to an early e4 break rather than slowly building in the center. In practice, it’s defined by the early move-order choice that reaches a Queens Indian–type structure while giving White tempo to challenge Black’s queenside setup. Because “Accelerated” can vary by transposition, the exact defining move sequence is not consistently standardized across sources, but the hallmark is an early central thrust that forces Black to respond quickly.