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Why Was Tetris Named Tetris? The Meaning Behind the Name

Tetris combines “tetra,” meaning four, with tennis, creator Alexey Pajitnov’s favorite sport. The four refers to each piece’s four square cells.
Length1 min Posted Quest giverVGSources Team
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Tetris combines tetra, Greek for “four,” with tennis,” creator Alexey Pajitnov’s favorite sport. The “four” refers to the four square cells in each of the game’s seven pieces—not the five squares in the Pentominoes puzzle that inspired it. The Tetris Company’s account attributes the name to Pajitnov.

What does “Tetris” mean?

The name is a blend of tetra and tennis. In the explanation attributed to Pajitnov, tetra means “four” in Greek, and tennis was his favorite sport. Together, the words became “Tetris.”

What does “four” refer to in the game?

Each of Tetris’s seven distinctive pieces is made of four square cells. That four-cell design is the reference behind tetra in the name.

How did Pentominoes inspire Tetris?

Pajitnov began with an interest in Pentominoes, a puzzle game built around five-square pieces. He adapted the idea for an electronic game using pieces of four squares each. The inspiration and the finished game’s pieces are related, but they are not the same: Pentominoes supplied the puzzle idea, while Tetris’s pieces have four cells.

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In a 2014 TIME interview, Pajitnov discussed his fondness for Pentominoes and translating the puzzle to a computer screen. The Tetris Company’s account connects that project to the game’s seven four-square pieces and its name.

Did Pajitnov confirm the tennis connection?

Yes. Ars Technica’s interview coverage quotes Pajitnov saying, “I used to love tennis, … That’s how I came up with the name ‘Tetris’.” The ellipsis is retained because the available excerpt omits intervening words. Read the Ars Technica interview coverage.

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