A straight three-cell descent
Trace OWN from row 4, column 3, then continue straight down through row 5, column 3 and row 6, column 3. The letters read O, W, N in that order, so the full three-cell route stays within one column and never turns.
For a precise check, follow 1 at row 4, column 3; 2 at row 5, column 3; 3 at row 6, column 3. That is two downward moves, one straight segment, a three-row span, and no edge or corner visits. It assigns the first three of the board’s 35 open cells.