The July 28 quiz answer list matches five well-known mathematical clues to specific mathematicians and concepts, plus one related visual. The quiz answers matter mainly for quick revision: they connect the Fields Medal, famous problems like the Poincaré conjecture, and major research ideas like optimal transport and Diophantine equations.

What happened (July 28 quiz answer list)

The quiz answer list provides the following correct matches:

(1) 2006 Fields Medal winner with Ben Green — Terence Tao

(2) proof of infinitely many prime pairs within a fixed distance — James Maynard

(3) 2006 laureate for the Poincaré conjecture — Grigori Perelman

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