The complexity of thought in the game is much deeper than that in chess.

FORBES: Go Is More Than A Game Despite What State of Washington Thinks

Others thought that the formula, for all its complexity, failed to take account of their particular circumstances.

ECONOMIST: Child support: Third time lucky? | The

Unfortunately, the accounting problems were much worse (at least in complexity, and possibly in magnitude) than the board initially thought.

FORBES: Misreported Revenue, Part I: Lime Energy

Kalra and Chugh grew up in India and thought they knew the lay of the land, but the challenges and complexity of investing in real estate there soon had them flummoxed.

FORBES: Magazine Article

At their best, such thought processes reveal a wide-ranging, diligent mind, sensitive to nuance, complexity and fine distinctions.

ECONOMIST: John Kerry

Rather than simply doing away with the deductions that caused the problems and reforming the rates to maintain progressivity, Congress thought a much more convoluted solution was just what the doctor ordered, adding an additional layer of complexity that has plagued the tax system since its inception.

FORBES: One Man's Marching Orders For The Next President