Complex sentence: A player's non-pawn pieces start in their normal setup on the back rank (one of the 8 × 1 extensions on the board perimeter), with pawns on the next rank in front of the pieces, as in standard chess.
Split into simpler sentences: A player's non-pawn pieces start in their normal setup on the back rank (one of the 8 × 1 extensions on the board perimeter). Pawns start on the next rank in front of the pieces as in standard chess.