N-positions refer to specific configurations in combinatorial games, particularly in games like Nim or Chomp. In these games, players take turns making moves, and the outcome can be determined by analyzing the positions of the game. An N-position is a state where the player whose turn it is to move is guaranteed to lose if both players play optimally. In contrast, a P-position is one where the player whose turn it is can force a win. Understanding N-positions helps players strategize effectively, as recognizing these configurations allows them to avoid moves that lead to losing outcomes.