Answer 1: SEEN, 4 letters
Trace SEEN through these cells: 1 at row 2, column 1; 2 at row 3, column 1; 3 at row 4, column 1; 4 at row 5, column 1. The letters read S → E → E → N. This is a direct vertical trace, so the repeated E is resolved by continuing through its exact positions instead of choosing another E elsewhere on the board.
From the starting S, move down three times and do not turn. The route has one straight segment, spans four rows and one column, and visits four edge cells, including one corner cell. Its starting cell has three open orthogonal neighbors, while its ending cell has two. As the first answer, it assigns four open cells and leaves 18 for the remaining three paths.