IM Sebastian Lukas Kostolansky

International Master (FIDE ~2440) with one GM norm, originally from Slovakia and currently representing Texas Tech University.

If you’re serious about improving, I will tell you exactly what you need to work on.

I’ve worked with players of all levels, from beginners to advanced, both in private lessons and training camps.

Contact:
[email protected]

1 GM norm (Las Vegas)
1st place European Youth Chess Championship (Slovakia)
6th place – World Youth Chess Championship (Spain)
Multiple-time Slovak Youth Champion
Represented Slovakia in Olympiad...
Active tournament player in US

3+ years of coaching experience.

I run training camps in Lubbock and work with students privately, helping them improve rating, calculation, and overall understanding of the game.

Experience working with competitive players preparing for tournaments
Currently building tools and training systems to help players think better during games

I adapt quickly to your level and explain ideas in a simple, practical way. I excel in tactical understanding and my personal style is playing sharp openings like the Sicilian for black.

My lessons are tailored to each student. I start by analyzing your games to identify the exact mistakes holding you back.

From there, we focus on the most important areas first, whether that’s tactics, decision making, or positional understanding...

The goal is simple, fix your biggest weaknesses and make your thinking more structured so you improve as quickly as possible.