# Matt Rathkey, M.A.

Matt was a professional jazz musician before joining Duolingo as a learning designer. He has worked on all of our new subject courses: math, music, and chess.

Jul 23 [Matt Rathkey, M.A.](https://blog.duolingo.com/author/matthew/)

[**チェスの最⁠高⁠峰「⁠グ⁠ラ⁠ン⁠ドマ⁠ス⁠ター⁠」になるには⁠？**](https://blog.duolingo.com/chess-grandmaster-tips/)

Jul 9 [Matt Rathkey, M.A.](https://blog.duolingo.com/author/matthew/)

[**Além do xeque-mate: como se tornar grande mestre do xadrez**](https://blog.duolingo.com/como-se-tornar-grande-mestre-do-xadrez/)

Jul 9 [Matt Rathkey, M.A.](https://blog.duolingo.com/author/matthew/)

[**Objectif échec et mat : comment devenir grand maître aux échecs**](https://blog.duolingo.com/comment-devenir-grand-maitre-aux-echecs/)

Jun 25 [Matt Rathkey, M.A.](https://blog.duolingo.com/author/matthew/)

[**Auf dem Weg zum Schachgroßmeister: Erreiche deine Ziele!**](https://blog.duolingo.com/wie-man-schachgrossmeister-wird/)

Jun 25 [Matt Rathkey, M.A.](https://blog.duolingo.com/author/matthew/)

[**Haz jaque mate a tus metas: cómo convertirte en gran maestro de ajedrez**](https://blog.duolingo.com/como-convertirte-en-gran-maestro-de-ajedrez/)

Feb 24 [Matt Rathkey, M.A.](https://blog.duolingo.com/author/matthew/)

[**Checkmate your goals: How to become a chess grandmaster**](https://blog.duolingo.com/how-to-become-a-chess-grandmaster/)