"Well, I simply don't see any answer to this particular puzzle," said Fatty.

We could talk all day and half the night and not come close to solving that particular puzzle.

For players who need help or simply cannot solve a particular puzzle, there is a hint book in the library of the house.

All the pieces of that particular puzzle were before him.

Frank hadn't wanted to leave this particular puzzle alone, either.

There is only one answer to that particular puzzle.

These are typically used to allow computers to both produce solutions, and rate the difficulty of a particular puzzle.

But she was feeling too restless to chase this particular puzzle for long.

The level design of Vessel grants the player freedom in how to solve a particular puzzle.

This particular puzzle was rated by the game as of medium difficulty and seemed relatively easy.