This should be a simple question - but we've had a new discussion about it at our game last night.
The text for determining cover for ranged attacks says "To determine whether your target has cover from your ranged attack, choose a corner of your square. If any line from this corner to any corner of the target's square passes through a square or border that blocks line of effect or provides cover, or through a square occupied by a creature, the target has cover (+4 to AC)."
Assuming the following situation, where the Xs are the walls, Os are open spaces, A is an archer, and the T is his target
XXXXX
OOOOX
OAOOX
XXOOX
XXTOX
Would the target have cover vs A's ranged attack?
The only two corners A can choose to draw lines from would be the upper or lower right. (well you could choose the upper and lower left, but then the target has total cover). Lines from both the upper and lower right corners go through the border of the wall to the upper & lower left corners of the target. A wall is something that blocks line of effect or provide cover.
Or does "through a border" mean something that I'm missing?
The reason my group is having this discussion is due to the diagram used for determining cover with large creatures. The descriptive text of that diagram states "The ogre has melee cover from her, but if it attacks her, Merisiel does not have cover from it, as the ogre has reach (so it figures attacks as if attacking with a ranged weapon)." However, if you draw lines from corners of the ogres squares they go through a border of the wall and a wall normally blocks line of effect or provides cover. This appears to contradict the text for determining cover vs ranged attacks.
