In memory of the founder of PRO Puzzle Solvers Team, Prof. Dr Durkenstein, who was one of the most active players in Puzzle Rush for two years but unfortunately decided to leave chess.com and claimed he will never get back.
- Nothing can be more Inhuman for a puzzle rusher than solving 40 puzzles in TWO minutes without hypertapping. (c) Prof. Dr Durkenstein, 2021.