Grandmaster in the Fast Lane
Antoaneta Stefanova, known online as GMStefanova, is a Bulgarian Grandmaster whose online play combines elite opening knowledge with the quick hands of a bullet specialist. Her profile is a museum of fighting chess, with nearly 450 rated games captured in the dataset and a longest winning streak of 11 games. Her peak numbers include 2726 (2020-04-28) in Blitz, 2717 (2020-05-29) in Rapid, and 2649 (2022-06-20) in Bullet, showing she can raise her level in any time control.
Rivalries and Regular Opponents
No online career is complete without a few familiar faces across the board. Stefanova's mostfrequent battles came against Alexandra Kosteniuk, with 28 meetings, and Deysi Cori, with 26. She owned the rivalry with anasta10, winning 8 of 11 encounters without a loss. Her record against chessqueen was tighter, which made those matches genuine tests of nerve.
Opening Repertoire
Stefanova's repertoire is rooted in classical structures with sharp modern twists. With Black, she often reaches for the Caro-Kann Defense and the Slav Defense, while as White she enjoys the Indian Defense and Ruy Lopez setups. Her fastest opening results include a perfect 100 percent score in the Colle line with 3...e6 4.Bd3 c5 in Rapid, and a ruthless 77.78 percent in the Indian Defense: Przepiorka Variation in Blitz.