[OoC: In case I was mistaken I double checked.
From the 3.5 SRD
From the 3.5 SRD
Quote:Measuring Distance
Diagonals
When measuring distance, the first diagonal counts as 1 square, the second counts as 2 squares, the third counts as 1, the fourth as 2, and so on. You can’t move diagonally past a corner (even by taking a 5-foot step). You can move diagonally past a creature, even an opponent.
You can also move diagonally past other impassable obstacles, such as pits.
