Justin Yu

Justin Yu, known online as Fractal161, is an American classic Tetris player from Dallas, Texas. He is best known for his victory in the 2023 Classic Tetris World Championship (CTWC), for becoming the second person to "beat the game", and first to achieve its earliest possible game crash on January 3, 2024.

Beginning to play Tetris around 2016, Yu entered the competitive scene around 2019, and was one of the first players to fully adopt a new and faster playing style called "rolling". Through repeated practice and by studying the game's programming assembly, Yu finished as the runner-up in the 2022 CTWC and won the 2023 CTWC while also a Junior at the Massachusetts Institute of Technology (MIT). After winning the CTWC, Yu focused on becoming the first person to "beat" Tetris. While working towards the achievement, Yu became the first to reach the late-game glitched color levels before the game crash, but was beat to his end goal by fellow competitive Tetris player Willis Gibson (known online as "Blue Scuti") on December 21, 2023. A few weeks later, Yu became the first player achieve the earliest possible game crash. He has stated his desire to one day run Tetris websites and tournaments when he leaves the competitive scene.