Anton Vasilenok: The Candidate Master Who Never Logs Off
Anton Vasilenok, known online as anton_vasi1enok, is a FIDE Candidate Master and one of the most prolific blitz chess players on the internet. Since arriving on the scene in January 2024, he has played more than 14,000 games, which is less a hobby and more a lifestyle choice. The Candidate Master title is FIDE's way of saying he is officially very good and unofficially not finished yet.
Blitz Chess: A Full-Time Occupation
Anton's preferred battlefield is blitz, and the numbers read like a productivity scandal: back-to-back months of 895 and 927 games in 2025, a peak rating of 2803 (2026-03-28), and a strength-adjusted win rate of 49.5%, which at his level is basically a superpower. His record is refreshingly honest: 3,753 wins, 4,286 losses and 619 draws, proof that he shows up for every fight, even when the fight disagrees with him.
The journey had plot twists: a 21-game winning streak, a 19-game losing streak, and a March 2026 breakthrough into the 2800 club. He beats lower-rated players 67.6% of the time and still mugs higher-rated ones 28.7% of the time, which makes him a terrible person to warm up against.
The Czech Defense Is Not a Phase
As Black, Anton's calling card is the Czech Defense, a compact fortress he has manned in over 450 blitz games for a sturdy 46.5% score. When London System players come knocking, he answers with the Poisoned Pawn Variation, 220 games deep and counting. The Kharlov-Kramnik Line of the Anti-Sveshnikov sits in his pantry with 301 appearances, a line so niche it deserves its own fan club.
As White it is 1.e4 or bust. Opponents meet him with the Caro-Kann Defense (372 games), the French, and the Four Knights, and occasionally with the Barnes Defense (1...f6), which has been trotted out against him 127 times, apparently for the story. His kryptonite? The Siberian Attack line of the Amazon Attack, where a 38.6% score suggests he should perhaps say no more often.
A taste of his signature Black setup:
Endgames, Comebacks, and Other Crimes Against Patience
- 80.2% of his games reach the endgame. Translation: he will out-walk you, and he has all day.
- Comeback rate: 88.2%. He drops a piece, shrugs, and still wins 41.2% of the time.
- Average winning game: 83 moves. He is the reason resignation letters get drafted around move 60.
- First capture usually arrives around move 7. Early bloodshed is not his style; slow strangulation is.
- Favorite checking piece: the queen, with more than 13,000 checks delivered.
- Only 0.26% of his games end in checkmate. Opponents tend to resign once his bind tightens, saving everyone the paperwork.
- One-sided loss rate: 1.4%. Even his disasters are competitive.
- Tilt factor: a chilly 19. He shrugs off losses like a duck sheds rain.
Rivals, Nemeses, and the luckyswitchback Problem
Every grinder has a circle of regulars. His most frequent dance partner is zelyony_slonik, a genuine rivalry at 111 games and a near-even 48-54-9. Then comes the dark chapter: Daniil Plyasunov has beaten him 55 times against only 12 wins, a number he would prefer we not print, and yet here we are. thechessprodigy_2014 leads their series 53-30, and even the insect-named brigade bites him, with cockroachdolly up 44-23 and LadyCockroach up 32-14. On the bright side, Anton owns Tchebytchev (30-21-9) and classicalplayer1111 (21-15-7), because every hero needs someone to dunk on.
Rapid Chess Anomalies and the 10 PM Warning
Blitz may be home, but his rapid record is quietly elite: 33-10-7, including a 24-game unbeaten run from August through November 2025. Daily chess? A flawless 2-0, making him technically undefeated for life in the slowest format. Bullet is nearly as big a habit as blitz, with a 2778 peak across 5,000-plus games of finger-speed heroics.
Circadian chess science: his most reliable hour is 9 AM (47.9% win rate), his statistically blessed hour is 23:00, and his worst is 22:00, where the win rate collapses to 10.5%. Challenge him with your morning coffee; avoid him after dinner. Rated games also cost him about 19 percentage points versus casual ones, proof that the scoreboard itself is a psychological weapon.
The Bottom Line
Anton Vasilenok is a Candidate Master with an engine-proof work ethic, a Czech Defense shaped bunker, an 88% comeback reflex, and a calendar permanently full of rematches. Lose to him once and you will get another chance soon, usually within the hour.