In the early days of humans versus computers in chess, we humans routinely won. Those chess-playing programs were rudimentary by today’s standards. Chess-game programmers became better, and eventually grandmasters – including the world champion – lost to computers.

Then a funny thing happened.

In 2005, a team of two amateur players entered an online tournament that placed few restrictions on play. Computers were among the contestants – grandmasters, too. But the amateur team had an edge over its competitors’ digital and human brains: special software they developed to help them play against computers, plus a methodology that helped them determine when to rely on their computer’s advice and when to favor their brainpower.

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