VAN: the three-cell opening
Read the opening word through these cells: 1 at row 2, column 5; 2 at row 2, column 4; 3 at row 1, column 4. The letters appear as V → A → N, producing VAN in three cells. This route starts with a horizontal move and finishes with a vertical move.
From row 2, column 5, go left to row 2, column 4, then turn upward to row 1, column 4. The path has one left move, one up move, one turn, and two straight segments. It spans two rows and two columns, visits two edge cells, and touches no corner cell. Both its starting cell and ending cell have two open orthogonal neighbors. Once VAN is assigned, three open cells are used and 16 remain.