How to Read the Board
Tips for deciding which arrow to clear first.
When you first look at a board, start by finding outward-pointing arrows near the edges and corners. Their short paths mean they can usually be cleared right away.
For inner arrows, check what's sitting on their path. If it's blocked, that's a sign to clear the blocking arrow first.
If you spot a cell where multiple arrows' paths overlap, opening that spot up will simplify the whole board significantly.