LBW explained: more than a ball hitting the pad
Read the core leg-before-wicket conditions without assuming every pad contact is out.
Several conditions must be met
MCC Law 36 makes LBW a set of conditions, not a rule that every pad hit loses a wicket. The delivery must not be a no-ball, and the ball must not have touched the bat before interception by the striker's person.
If it pitches rather than arriving full-pitch, it must pitch between the wickets or on the off side of the striker's wicket. A delivery pitching outside leg stump does not satisfy that pitching condition, even if it later turns towards the stumps.
Impact and the path matter
The impact normally has to be between wicket and wicket. When the striker makes no genuine attempt to play the ball with the bat, the Law allows impact outside the off-stump line as well. The ball must also have been going on to hit the wicket.
These are distinct questions: where it pitched, what it touched first, where it hit the striker and where it would have travelled. Satisfying one does not establish all the others.
A scoreboard cannot decide the appeal
A hypothetical pad contact on a legal ball is still only part of the evidence. Television-review procedures and competition conditions add their own operational context; this guide does not invent a review outcome.
ScoreZaap's wicket count follows the reported decision. Wait for confirmed status when a review is ongoing, rather than counting an appeal as a wicket. LBW names the dismissal; it does not by itself describe how many runs the team scored before that ball.