Avatar of Феликс Тульчинский
Player Profile

Феликс Тульчинский IM

Grossboss19 Since 2020 (Active) Chess.com ♟♟♟♟♟
41.5% W 45.1% L 13.5% D
Bullet
2646
109W 56L 18D
Blitz
2955
2448W 2740L 816D
Rapid
2042
16W 3L 1D

Boss of the Lobby

“Grossboss19” may sound like a leader, but he is really a chess glutton. Officially, he is Феликс Тульчинский, or Felix Tulchinsky for those who do not use Cyrillic. He is an International Master. His profile declares that his preferred time control is Rapid. Then he keeps playing Blitz as if Rapid were a rumor. That sort of contradiction is on brand.

The Endgame Home

Felix is not in a hurry to leave the endgame. In fact, he enters that phase in more than 91% of his games, and his winning battles often run close to one hundred moves. He sees the endgame as a comfortable room, not a panic room.

His best hours are around 7:00 a.m., when normal people are asleep and his opponent is still asking where the board went. That same stubbornness shows up in the

Blitz Rating302726992371204317152020: 18242021: 20302022: 21712023: 25642024: 26102025: 28552026: 29182020202120222023202420252026
feature. His peak number, 3066 (2026-08-26), arrived after months of deciding.

Flavors and Openings

His opening kitchen is a large, messy pantry. He happily accepts the Caro-Kann Defense when Black, plays a flexible Modern Defense when the mood arrives, and sometimes drags everyone into a quiet Réti Opening. The flavor of the century is visible in

Win Rate by Opening0%25%75%100%50%Caro-Kann Defense: 41.4% over 244 gamesModern: 43.8% over 137 gamesSicilian Defense: Alapin Variation: 29.9% over 127 gamesColle System: Rhamphorhynchus Variation: 47.1% over 121 gamesItalian Game: Two Knights Defense: 34.5% over 116 gamesRuy Lopez: Closed: 35.7% over 112 gamesCaro-Kann Defense41%Modern44%Sicilian Defense: Alapi…30%Colle System: Rhamphorh…47%Italian Game: Two Knigh…34%Ruy Lopez: Closed36%
.

Rivalries with Names

Felix is a creature of habit, and his most familiar co-conspirators are real people on the other side of the screen. He has played Petros Trimitzios in forty-three games, with 18 wins, 17 losses and 8 draws. WhooopsIDidItAgain has appeared forty-two times, while Oleg Vastrukhin keeps popping up to claim the third berth. If you think online chess feels anonymous, Felix can tell you all their favorite moves. And their least favorite ones.

Tilt? Yes. Troll? No. Return? Yes.

His tilt factor is 9, which is a polite way of saying his mood can become volcanic after a few bad losses. But his comeback rate is 90.27%, and even after losing a piece he still wins almost 40% of those games. Felix knows how to look at a broken position and say: “This is not a problem. This is another opening.”

Bio last updated 2026-09-11