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[[Martin Gardner]] featured the problem in his April 1958 [[Mathematical Games column]] in ''[[Scientific American]]''. According to Gardner, Williams had ...ay be in the hundreds or thousands. Unlike trial and error in the case of guessing a polynomial root, trial and error for a Diophantine root will not result i ...

...[[mental calculation|mental arithmetic]] and [[arithmetic]], reasoning and games, and superhuman memorization, and fight against each other without politics == Brain Games == ...