I also offer a free lesson to any level so you can test my skills, thanks!!!
I have extensive experience in chess, including playing, writing, and teaching.
I've had many students in my life, mostly at an intermediate or high level, but undoubtedly I have taught numerous people how to play chess. I am fluent in Spanish, English, and Portuguese.

Win against Aronian in TT

https://www.chess.com/analysis/library/2x2xvRgDi6

Greetings from Argentina, my name is Matias Halac and I was born in Detroit, but my family moved to Argentina when I was 7 years old.
I am fluent in Spanish, English, and Portuguese (I also lived in Brazil).
I've been playing chess for most of my life. I started with the basics at 6 and participated in my first tournament at 9.
At 48 years old, I have extensive experience in chess, including playing, writing, and teaching.
I've had many students in my life, mostly at an intermediate or high level, but undoubtedly I have taught numerous people how to play chess.
You can check my FIDE ratings and CM title here:
https://ratings.fide.com/profile/103128
I rarely play chess OTB since I put competition aside after my university career in journalism.
The last standard tournament I participated in was the 1992 U-18 World Chess Tournament in Duisburg, Germany, after being Argerntina's champion.
Please check a sample game from that tournament against a strong GM:
https://www.chessgames.com/perl/chessgame?gid=1444130
I never strayed from chess and was highly active online, teaching and occasionally representing my club in rapid tournaments, with good results:
https://ratings.fide.com/profile/103128/statistics
I am undefeated with victories over GMs and IMs.

To book a lesson:
http://koalendar.com/e/class-MatiHalac

You can contact me on Fiverr also:
http://www.fiverr.com/s/pd9BoGZ

matihalac