Question

When reading a book about chess, you come across the word "skewer." After looking up the term in the glossary, you know that a skewer is

a move or combination that aims for advantage in a game while carrying the danger of ending up with a poor position.
an act of exchanging pieces in a game to reduce complexity or stop an enemy attack.
the territory (squares) controlled and occupied by each player's pieces and pawns.
a tactic where you attack two of your opponent's pieces at the same time along a rank, file, or diagonal, and the more-valuable piece is attacked first.

Answer 1

It's a tactic where you attack 2 of your opponents, if you have ever seen chess, its also determined as "reverse pin" It can be seperated in 2 things. Absolute and relative.

Answer 2

The correct answer is:
a tactic where you attack two of your opponent's pieces at the same time along a rank, file, or diagonal, and the more-valuable piece is attacked first.