"It's not clear whether an insider can help solve Lucent's complicated puzzle."

Putting together the 4 Times Square site, for example, was an incredibly complicated puzzle.

Placing his hands on his hips, he regarded her as though she were a complicated puzzle.

Before him was a bowl of clear liquid, in which lay a complicated puzzle of interlocking rings.

Only an hour ago they had been laughing, jostling each other while they fumbled with a complicated mechanical puzzle.

While most of the game mechanics remained unchanged, the addition of more complicated puzzles was welcomed.

She's just the means to a larger end, a single piece in a complicated puzzle.

You may have to help him at first, but as he progresses, he can tackle more complicated puzzles.

And all the time my head swam with questions and complicated puzzles.

Stephanie stared at the water as if it were a complicated puzzle she had to solve.