GURU — Four cells and one turn
Trace GURU from row 1, column 7, moving left to row 1, column 6 and left again to row 1, column 5. Turn down once and finish at row 2, column 5. That spells G → U → R → U without leaving the four-cell route.
The shape is two straight segments joined by one turn, spanning two rows and three columns. Three of its cells sit on the board edge, including the corner start. After this path is placed, four cells are assigned and 35 open cells remain for the five longer paths.