Wordle is a word game in which players have six attempts to guess a five-letter word with feedback given after each guess as to which letters from the guess are exactly correct or correct letter in the wrong position, similar to the game Mastermind but for letters.
Excerpt from Wordle wikipedia article:
Wordle is a web-based word game developed by Josh Wardle. Players have six attempts to guess a five-letter word, with feedback given for each guess in the form of colored tiles indicating when letters match or occupy the correct position. The mechanics are nearly identical to the 1955 pen-and-paper game Jotto and the US television game show Lingo. Wordle has a single daily solution, with all players attempting to guess the same word.
Wardle initially created the game for himself and his partner to play, eventually making it public in October 2021. The game gained a large amount of popularity in December 2021 after Wardle added the ability for players to copy their daily results as emoji squares, which were widely shared on Twitter. Many clones and variations of the game were also created, as were versions in languages besides English. The game was purchased by The New York Times Company in January 2022 for an undisclosed seven-figure sum, with plans to keep it free for all players; it was moved to their website in February 2022.