"Very impressed by Frieder's work ethic, he's absolutely fantastic"

• Nataliya Tkachenko

"I'd say to anyone that Frieder is brilliant"

• Ryan-Rhys Griffiths

"the best host I’ve seen on Kaggle so far! Thanks so much for hosting the competition and actively moderating the forum - it was awesome."

• Duc Nguyen Huu
(on my role as the AIMO2 competition manager on Kaggle) https://www.kaggle.com/competitions/ai-mathematical-olympiad-progress-prize-2