Not to be confused with The Tree Puzzle (Land 3).
The Tree Puzzle is a non-scroll challenge from Black & White. It is located at the "fourth" Indian village on Land 2 (the one that is closest to Lethys' realm. It becomes available after having influence over the area.
A signpost contains the instructions for the puzzle.
The goal is to make all trees the same, but whenever a tree is changed, the ones next to it (vertically and horizontally) are changed as well.