Yuliia Osmak: The Hammer of Online Blitz
Who Is Yuliia Osmak?
Yuliia Osmak, known online as zajka-molotok, is a FIDE International Master with a serious appetite for blitz chess. The username hints at her style: zajka means bunny, molotok means hammer, and her games combine bunny-like agility with hammer-like blows.
Her online resume is built on more than 2,300 blitz games, plus meaningful time spent in bullet, rapid, and daily chess. While she is titled and clearly strong in classical settings, her online identity is powered by fast time controls.
A Blitz Player Through and Through
Blitz is where Osmak feels most at home. Her rating climbed steadily from the late 2400s into the 2600s, with a peak of 2649 (2022-10-25). The chart below shows how she kept returning to elite blitz territory year after year.
Her numbers are not just about rating. She has 1,175 blitz wins, a longest winning streak of 17 games, and a comeback rate above 86%. Even when she loses material, she manages to win nearly 48% of the time, which makes her a very uncomfortable opponent to face.
Unorthodox Openings and a Fearless Repertoire
Osmak is not a player who hides inside mainline theory. In blitz she has played the Amar Gambit nearly 100 times, with a win rate around 56%, and she uses the Caro-Kann Defense as a recurring answer as Black. She also enjoys the Amazon Attack, Barnes Defense, Modern Defense, and the French Defense Advance Variation.
Her willingness to play rare lines makes her dangerous, especially when her opponent expects a normal developing game. As White, her Amar Gambit has scored over 59%, and as Black her Barnes Defense has brought in close to 58%.
Rivalries and Recurring Online Battles
Her match history is full of familiar names. She has faced Pavel Kuft 47 times, winning 36 of those battles. Against nissou-ach she has contested 46 games, with a narrow 21-17-8 edge. When she meets Anna Muzychuk, the results flip; in 22 games she has only 3 wins against 16 losses, showing the gap between very strong and world class can still be large.
One of her most lopsided rivalries is against roybahat, where she has 19 wins and a single draw in 20 games. These long running rivalries show how active she is in the online blitz pool.
Habits, Streaks, and a Daytime Hammer
- Over her online career her winning streak reached 17 consecutive games.
- Her one-sided loss rate is just 1.04%, meaning she rarely gets blown off the board.
- Her best time of day to play, according to her stats, is 08:00.
- In daily chess, her sample is perfect: 18 wins, 0 losses, and 0 draws.
Those details paint a picture of a player who grinds, fights back, and does not give up. The bunny may be cute, but the hammer is very real.