What Does \"Hitori\" Mean? The Puzzle, the Name & the Anime

If you have started solving Hitori, you have probably wondered about the name. It is short, it is Japanese, and it sounds nothing like "sudoku" or "crossword." It turns out the name is a tiny joke baked into the puzzle, and it is also a word you may have bumped into in a completely different corner of the internet: Japanese anime. This guide explains exactly what "hitori" means, where the puzzle's name comes from, and how to tell the logic puzzle apart from the pop-culture references that share the word. Once the name makes sense, the puzzle feels a little more charming. Ready to try it? Play a Hitori puzzle any time.

The short answer

"Hitori" (ひとり) is the Japanese word for "alone" or "one person." As a puzzle name it is short for a longer phrase, "Hitori ni shite kure" (ひとりにしてくれ), which translates roughly to "leave me alone." That is a wonderfully fitting name once you understand the puzzle, because Hitori is all about isolating numbers so none of them are crowded by a duplicate. The cells you keep are, in a sense, asking to be left alone.

So the name is not random. It is a small piece of wordplay that describes the puzzle's whole goal in two words.

Why "leave me alone" fits the puzzle

Hitori works differently from most number puzzles. You start with a grid that is completely full of numbers, and your job is to shade out the duplicates so that no number appears more than once, unshaded, in any row or column. The numbers that survive are the loners, the ones left standing alone in their row and column.

That is the heart of the joke. A row might start with two 3s elbowing each other; by the end, you have shaded one away so the remaining 3 is finally "left alone." The name captures the puzzle's elimination mechanic perfectly, which is the kind of quiet cleverness the Japanese publisher Nikoli is known for. (For the full origin story, see our history of Hitori.)

Is Hitori an anime?

Here is where the name causes confusion. Because "hitori" is a common Japanese word, it shows up in plenty of places that have nothing to do with the puzzle, and a few of them are popular anime:

• Hitoribocchi (from Hitoribocchi no Marumaru Seikatsu) is an anime and manga series. The title plays on "hitori bocchi," meaning "all alone."
• Hitori Gotoh is the main character of the hit anime Bocchi the Rock!, nicknamed "Bocchi," again from the same "alone" idea.

None of these are connected to the logic puzzle. They simply share the everyday Japanese word for "alone." The good news is that search engines already understand the difference: when you look up "hitori puzzle," you get puzzles, and when you look up the anime characters, you get anime. Adding the word "puzzle" removes any doubt. So if you came here for the grid-and-numbers game, you are in the right place, not at an anime fan site.

Does Hitori have other names?

Unlike some puzzles that travel under many aliases, Hitori is almost universally known by its Japanese name. A few alternative labels have appeared over the years, mostly in European puzzle collections, including Twincognito and the German Zahlen streichen ("cross out numbers") and Federstrich. But these are rare. "Hitori" is the name you will see everywhere, from Japanese puzzle magazines to international apps.

That universality is part of why the name is worth knowing. There is no "English version" of the name to learn, just the original word and its quiet meaning.

The name tells you how to play

The lovely thing about Hitori's name is that it doubles as a hint. "Leave me alone" is, in effect, the puzzle's instruction: shade cells until every remaining number stands alone in its row and column, with no duplicate beside it. Keep that translation in mind and the goal never feels abstract.

So the next time someone asks what "hitori" means, you can tell them: it means "alone," it is short for "leave me alone," and it is the most fitting name a number-elimination puzzle could possibly have. Now that the name makes sense, the puzzle is even more satisfying to solve. Play Hitori now, or learn the rules first.

Frequently asked questions

What does "hitori" mean in Japanese?

"Hitori" (ひとり) means "alone" or "one person" in Japanese. The puzzle's name is short for "hitori ni shite kure," which translates to "leave me alone." It refers to the puzzle's goal of shading duplicate numbers so each remaining number stands alone in its row and column.

Is Hitori the puzzle related to the anime?

No. The logic puzzle and anime such as Hitoribocchi or Bocchi the Rock! (whose character is named Hitori Gotoh) are unrelated. They simply share "hitori," the common Japanese word for "alone." The puzzle is a Nikoli number game with no connection to the anime.

Why is the Hitori puzzle called Hitori?

It is called Hitori because the name, short for "leave me alone," describes the puzzle perfectly. You shade out duplicate numbers until each surviving number is left alone, with no matching number unshaded in its row or column. The name is a small piece of wordplay about isolation.

Does Hitori have any other names?

Hitori is almost always known by its Japanese name. A few rare aliases have appeared in European puzzle collections, such as Twincognito and the German "Zahlen streichen" (cross out numbers), but they are uncommon. "Hitori" is the standard name worldwide.