Some users complained online that the move reset their winning streaks, and the newspaper said it was investigating the issue.

The NYTimes Wordplay Twitter posted: “Hi Wordlers! We are aware that your “current streak” has been reset today. Our Games team is currently investigating. Stay tuned for more #Wordle updates.

Later, the NYT tweeted that the problem had been identified and a fix was being worked on.

The popular online game was purchased from its creator by The New York Times Company last month and the newspaper hinted that it may not be free to play in the future.

US-based software engineer Josh Wardle said he decided to sell the virtual puzzle after it snowballed and became “overwhelming” to execute, and the NYT reported. stated that it “will initially remain free”.

Creator Mr Wardle thanked users for sharing touching stories of the effect the game has had on their lives and relationships and added that he was “delighted” with the takeover.

He said: “Since launching Wordle I have been impressed with the response from everyone who has played.

“The game has become bigger than I ever imagined (which I guess isn’t much of an achievement considering I made the game for an audience of just one).

“It was amazing to see the game bring so much joy to so many people and I’m so grateful for the personal stories some of you have shared with me – from Wordle uniting estranged family members, to causing friendly rivalries, supporting medical recoveries.

“On the other hand, I would be lying if I said it wasn’t overwhelming.”

The NYT said the ad-free website, which launched in October and now boasts millions of daily players, was purchased for “seven figures”.

He added that the NYT company said “the game will initially remain free for new and existing players.”