Albert Einstein and Pool

In the latest issue of Pool & Billiard magazine
they claim, without quoting a source,
that Albert Einstein said the following:

"Billiards is the well-developed Art of thinking ahead. It is not only a game, but first and foremost a demanding Sport, which requires good stamina, the logical thinking of a chess player and the stable hand of a concert pianist."

I checked the internet for some confirmation,
but could not find anything showing he said it.

"The Secret of Creativity
is knowing how to hide your sources."

Albert Einstein

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