I am played by many, yet I have no board or pieces, and I can last forever. What am I?

Category: Brain · Difficulty: expert

Hint: Consider games that require strategic thinking.

Answer

Chess in the mind

Explanation

Chess can be played mentally, without physical pieces, and can continue indefinitely in thought.

This is a expert brain riddle — one of the harder riddles here. The answer is Chess in the mind.

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