Wordle has been a sensation for more than two years, continuing to challenge puzzle enthusiasts daily.

Developed by Josh Wardle, a software engineer based in Brooklyn, the game was originally a gift for his girlfriend who loved word games. Initially intended for the couple’s own enjoyment during COVID-19 lockdowns, Wardle soon recognized its broader appeal and launched Wordle online in October 2021.

The game’s popularity skyrocketed within months, growing from 91 players in November 2021 to more than 2 million by January 2022. This rapid growth caught the attention of The New York Times, which acquired it for an undisclosed seven-figure sum.

Today, Wordle remains the newspaper’s most-popular word game. What drives its enduring success? Wardle attributes it to the puzzle’s format of five-letter words and six guesses.

“There is a reason that every word is five letters long and that you are allowed six attempts to guess it. That might seem arbitrary, but, with the prototype version, I tested different word lengths and experimented with the number of tries that players were allowed,” Wardle told Newsweek in January 2022.

“Through that process of refinement, I figured out that five letters and six tries was the ideal sweet spot. It’s just limited enough to feel challenging and to make you think, but most of the time, people still manage to solve it. So, you feel a real sense of accomplishment.”

Another key to Wordle‘s appeal is its one-puzzle-a-day format.

Wardle said: “The idea to impose a limitation came when my partner and I started getting into crosswords during the pandemic. In particular, The New York Times has this puzzle called Spelling Bee, which has this once-a-day model that I thought was really effective.

“I liked the idea that everyone around the world was trying to solve the exact same word at the exact same time. It created a shared communal experience. [If] there were multiple puzzles to solve and everyone was at a different stage, then there wouldn’t be that kind of conversation, which I think is the most fulfilling part of Wordle.”

If Monday’s Wordle puzzle has you stumped, Newsweek has compiled a few hints to assist you.

Wordle #1,304, Hints for Monday, January 13 Game

Hint #1: The word has two vowels.

Hint #2: It is a noun often associated with a type of garment.

Hint #3: The word starts with C.

Hint #4: There are no repeated letters.

Hint #5: It can also mean to conceal or hide something.

Wordle #1,304, Answer for Monday, January 13 Game

Monday’s Wordle answer is “CLOAK.”

If you didn’t guess it correctly, then you can try again when Wordle resets at midnight in your time zone.

While you wait, why not give these other popular online word-puzzle games a go?

What Does ‘Cloak’ Mean?

The Merriam-Webster dictionary defines “cloak” as a noun meaning “a loose outer garment” or as a verb meaning “to cover or hide with or as if with a cloak.”