Hello, welcome to my profile. If you like, leave me a note.

I'm a German mathematician who is fond of puzzle rush and puzzle battle. 

My chess blog:

My math blog:


Personal bests

55 puzzles in puzzle battle:

54 puzzles in 3 minutes:

60 puzzles in 5 minutes:

46 puzzles in 2 minutes

36 in the first minute (puzzle battle)




Win in puzzle battle against GM Nihal Sarin: