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Let's see what Ben Franklin thought about this...
"And lastly, we learn by Chess the habit of not being discouraged by present appearances in the state of our affairs, the habit of hoping for a favourable change, and that of persevering in the search of resources. The game is so full of events, there is such a variety of turns in it, the fortune of it is so subject to sudden vicissitudes, and one so frequently, after long contemplation, discovers the means of extricating one's self from a supposed insurmountable difficulty, that one is encouraged to continue the contest to the last, in hopes of victory from our own skill, or at least of getting a stalemate from the negligence of our adversary . . ."