Although he became the first to reach the late-game glitched color levels before a game crash, Yu was beat to his goal by fellow competitive Tetris player Willis Gibson ("Blue Scuti") on December 21, 2023.

[2][3] In high school, Yu participated in a number of math competitions,[3] helping him to get accepted into the Massachusetts Institute of Technology (MIT) with a major in computer science and engineering.

[2][3] To get a better understanding of the game, Yu began to experiment in programming assembly and ROM hacking, which helped him to become the first person to reach Tetris's late-game glitched color levels, and in his major at MIT.

[4] As a Junior in college, Yu again competed in the CTWC from October 13 to 15, 2023, where he beat fellow competitor Eve Commandeur ("Sidnev") to place first, winning over US$3,000.

[2][5] Fellow competitive Tetris player and YouTuber Willis Gibson ("Blue Scuti") became inspired by this goal and competed against Yu for over two months to become the first to the achievement.

to potential new players, when other achievements such as the "perfect Tetris game" consisting of only the highest scoring line-clears called "tetrises", and "rebirth", playing the same so long it restarts at level one, had both yet to be done.

[2] In a February 2024 interview with the newspaper The Tech, Yu stated his strategy revolved less around making "the board look as nice as possible", and trying to focus on completing tetrises.