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August 15, 2025 · 4 min read · Elias Teubner
#chess #tournament #personal

Sonnenterrassen-Open 2025 — From 29th Seed to Top 18

They seeded me 29th. I finished 18th and picked up over 31 Elo points on the way. The bracket said one thing. The board said something else.

The Tournament

The Sonnenterrassen-Open B-Tournament draws a competitive field — strong club players, ambitious improvers, and a few who are quietly better than their seeding suggests. I was in that last group, and I knew it going in. Seedings are based on past results. They don't account for someone who's been preparing specifically to prove a point.

The Run

What made this tournament special wasn't one brilliant game — it was consistency under pressure. From the early rounds, I played solid, aggressive chess and didn't let up:

  • Won my early games cleanly, building momentum
  • Maintained a Top-10 position through most of the tournament
  • Faced higher-rated opponents without fear — and took points from them
  • Ultimately finished 18th overall, well above my seeding

+31 Elo

Thirty-one Elo points in a single tournament. That number means consistently outperforming your rating — not getting lucky once, not catching one person on a bad day. It means you took points from players who were supposed to beat you, repeatedly, over the course of an entire event. A typical club player gains or loses 5–10 points per tournament. I gained three times that.

The pieces were there: preparation, focus, and a mindset that doesn't accept a seeding as a ceiling.

What Chess Teaches You

People ask me why I play competitive chess when I spend most of my time building AI tools. The answer is simple: chess and engineering are the same discipline with different boards. Both require pattern recognition, calculating consequences before you act, staying composed when the plan breaks, and knowing exactly when to press versus when to hold.

The Sonnenterrassen-Open confirmed what I already knew: I don't perform to my seeding. I perform to my preparation.

— Elias

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