Svitlana Demchenko (Sveta10): Bullet Chess Streamer and Woman International Master
From Sveta10 to Woman International Master
Svitlana Demchenko, known online as Sveta10, holds the Woman International Master title from FIDE and has turned online chess into an endurance sport. She is also a streamer, and her channel revolves around high-volume bullet play, long battles, and the kind of resilience that only comes from thousands of online games.
Since 2018, Sveta10 has played more than 12,000 analyzed games. The vast majority of those games were bullet, and her rating trajectory shows a player who never stopped grinding.
Built for Bullet
Svitlana's bullet path is a steady climb. She started around 1830 in the summer of 2018 and eventually reached a peak bullet rating of 2695 in August 2026.
The road was not smooth. Sveta10 has survived a 17-game losing streak and also put together a 15-game winning streak. Her comeback rate sits near 88 percent, and she still wins almost 47 percent of games after losing a piece. This is not a player who gives up early.
A Repertoire Built on Fighting Chess
Her opening choices are adventurous. With black, the Alekhine Defense appears nearly a thousand times in bullet, while the Scandinavian Defense is another frequent weapon. As white, she leans on the King's Indian Attack and has a positive record against the Sicilian Defense in faster time controls.
Sveta10 plays long games. Her average win stretches to about 80 moves and her average loss goes even longer, with endgames appearing in nearly 88 percent of her battles. Against higher-rated opponents her win rate dips to around 28 percent, but against lower-rated players she converts at roughly 67 percent.
Rivalry and Streaming
No opponent appears in her record more often than nissou-ach. They have faced each other 307 times, and nissou-ach owns the upper hand with 185 wins against her 98, along with 24 draws. It is a rivalry that runs through Svitlana's bullet history like a recurring theme.
As a streamer, Svitlana brings that same volume and personality to her viewers. She is comfortable grinding out a 90-move endgame, trading blows in an Alekhine Defense, or brushing off a tough flag. For fans of bullet chess and fighting chess, Sveta10 is a must-watch.