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Math Encounters — Online:

"Matchings and Couplings: Domino tilings of a chessboard and other tales" with Dana Randall

Wednesday, April 7 at 4:00 pm ET (New York)

Covering a chessboard with dominoes might sound like a curious blend of old pastimes, but in reality these tilings reveal rich and beautiful mathematical structures.  Interesting patterns can be found in the geometric arrangements of dominoes, as well as in the numerical counts of tilings of chessboards and related regions.  Alternatively, viewing each domino on the chessboard as pairing a black square with one of its neighboring red squares, tilings can be interpreted as assigning 32 pairs.  Viewing these "matchings" in a variety of contexts, Georgia Tech ADVANCE Professor of Computing Dana Randall shares a surprising array of applications, from the physics underlying collections of diatomic molecules to dating algorithms for forming couples in a community.

Special introduction by Peter Winkler, William Morrill Professor of Mathematics and Computer Science at Dartmouth College.

This is a live-streamed event.  Occasional video recordings are made available for a fee at

This page is for the 4:00 pm ET (New York) session.  Click here to register for the 7:00 pm ET (New York) session instead.

By registering for a Math Encounters presentation, you agree that you may be photographed or videotaped by Museum staff and associates.

Math Encounters is MoMath's popular free public presentation series celebrating the spectacular world of mathematics, produced with support from the Simons Foundation.

For further information, call the National Museum of Mathematics at 212-542-0566 or email

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April 7th, 2021 from  4:00 pm to  5:30 pm
MoMath Online
United States