STACK WORLD RECORD HOLDER GOES CRAZY

The gamer attempts dozens of runs to break the Stack world record in hard mode, peaking at 525 without success before a bug forces an early end.

• Peak run — Reaches 525 with consistent expansions but misses the record by a narrow margin [41:53]

• Hard mode challenges — Speed increases rapidly after expansions, making long perfect streaks nearly impossible for humans [48:13]

• Expansion trigger — Requires exactly five perfect blocks in a row to grow the square [1:17:31]

• Frequent 400s entries — Multiple attempts hit the 400s with large squares yet collapse from missed blocks [30:24]

• Late recovery — Turns a tiny square at 251 into a strong comeback through steady locking in [21:29]

• Stream conclusion — A leg bug drops the square and prompts the player to wrap up [1:25:34]

• What score marks the player's best attempt in this session?

• How does hard mode's expansion rate compare to normal mode?