But here is the secret that separates casual fans from champions: They use a 7x7 cube solver .
Leo wasn't a mathematician. He was a backend engineer with a repetitive stress injury and a grudge. Three years ago, at the World Cube Association competition in Vegas, a "speedcuber" kid—barely fifteen, wearing a hoodie and an attitude—had mocked Leo’s old-school solving style.
But here is the secret that separates casual fans from champions: They use a 7x7 cube solver .
Leo wasn't a mathematician. He was a backend engineer with a repetitive stress injury and a grudge. Three years ago, at the World Cube Association competition in Vegas, a "speedcuber" kid—barely fifteen, wearing a hoodie and an attitude—had mocked Leo’s old-school solving style.
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