RELATED: Little Nightmares 2: Chess Puzzle SolutionĪs many players may have already guessed, the solution to the puzzle lies in following the sound of Six's music box that players may recognize from Little Nightmares 2's Chapter 1. Similar to the mechanics of the portals in the Portal series, when Mono walks through one of the doorways, he is immediately teleported through another door in either the same room or to a different location. Unlike the majority of Little Nightmares 2's puzzles, which are mostly platforming related, the pink door puzzle tasks players with walking through doorways in the correct order. One of Little Nightmares 2's most confusing puzzles occurs at the start of Chapter 5 when players must navigate a confusing labyrinth of pink corridors to reach the final boss.