Avatar of Ivan Kukushkin

Ivan Kukushkin CM

Username: Yohankrokov

Playing Since: 2022-06-05 (Active)

Wow Factor: ♟♟♟♟♟

Chess.com

Daily: 1346
3W / 3L / 0D
Rapid: 2423
450W / 412L / 74D
Blitz: 2707
1155W / 1176L / 270D
Bullet: 2668
578W / 491L / 59D

Cobro Professor (aka Yohankrokov)

Meet Cobro Professor, the chess force who proves that blitz is a battleground and bullet is a battlefield. Starting from humble beginnings with a blitz rating of under 1000 in 2022, this player has soared spectacularly, peaking at an astonishing 2705 in March 2025. Not bad for someone who probably still forgets where the coffee cup is half the time!

Known for a tactical awareness that makes opponents wonder if they're playing against a grandmaster or a chess wizard with a crystal ball, Cobro Professor has a comeback rate of nearly 80%. When the going gets tough, the tough get going — and probably launch an elegant counter-attack.

Playing styles? Cobro Professor is the master of patience with an average of over 68 moves per win and a whopping 72% frequency of endgames. But watch out mid-game, because if they lose a piece, they still win almost half the time. Resignation rate is low-ish at 9%, hinting that quitting isn’t really in their vocabulary — except maybe when the snacks run out.

Bullet games are another story: with a peak bullet rating of 2579, Cobro Professor can think and execute moves faster than you can say “checkmate.” Their favorite bullet opening? The Van't Kruijs Opening, boasting a jaw-dropping 73% win rate — because why not mess with people’s heads from the very first move?

The player’s rapid rating maxed out at 2364, blending solid technique with fierce competition. Opening repertoire is impressive and varied, with a particular fondness for the Alapin Sicilian and tricky Sicilian Defense variations. Balanced performance as White (50.58% win rate) and Black (46.19%) shows they can dance with both sides without missing a beat.

Cobro Professor’s psychological makeup? A tilt factor of 11 suggests some fiery passion, but nothing a deep breath and a well-timed rook move can’t soothe. Their best time of day to play is… midnight. When most people are asleep, Cobro is busy plotting checkmates and raising ratings — a true night owl warrior.

Recent games tell the tale of a cunning strategist who knows when to press and when to resign gracefully. For instance, a recent gem saw Cobro applying the Queens Pawn Opening with finesse, forcing a resignation from a tough opponent in less than an hour. Meanwhile, their last checkmate was delivered in a lightning-quick Vienna Game — because why not finish with style?

Opponents beware: with a mixed bag of results against familiar rivals but a general trend toward outplaying competition, Cobro Professor keeps their friends close and their checkmated adversaries closer. Win streaks have reached up to 15 games, but even losses are lessons learned the hard way.

All in all, Cobro Professor is a chess player who combines studious preparation, quick hands, and a hint of mischief. Whether it’s blitz, bullet, or rapid, they’re ready to take on the challenge — just don’t ask them why their knight suddenly vanished in the middle of the night.

“Blunder? I prefer the term 'creative chance'.”


Coach's Avatar

What you’re doing well in blitz

You have demonstrated sharp tactical awareness in complex moments and the ability to spot forcing lines. This helps you seize initiative when your opponent overextends or misplaces a piece.

  • You adapt well to different openings, showing flexibility and a willingness to test ideas rather than sticking to a single, narrow repertoire.
  • You manage to press in open positions and exploit active piece play, which is a valuable strength in fast time controls.
  • In longer blitz sequences, you maintain practical chances by simplifying when favorable and driving to clear, instructive endgames.

Areas to improve for faster, more consistent results

  • Time management under pressure: in blitz, it helps to allocate a strict but flexible time budget per phase of the game (opening, middle game, endgame). If you’re unsure about a tactic, default to the safer, plan-based move and come back to deeper lines when you have more time.
  • Repertoire consolidation: you’ve shown comfort with several openings, but blitz can benefit from a tighter, 1–2 opening systems for both sides. This reduces decision fatigue and improves your ability to execute a clear plan quickly.
  • Endgame technique: when games go long, you can benefit from concrete endgame practice (rooks and pawns, king activity, opposition). Strengthening these patterns will help convert advantages and rescue draws when material is balanced.
  • Post-game analysis habit: after each blitz session, note one or two concrete takeaways and try them in the next game. Focus on patterns (tactics you missed, mis-evaluated exchanges, or missed prophylaxis) to build consistent improvement.

Concrete, actionable plan for the next 4 weeks

  • Week 1: daily tactics practice (15–20 minutes) focusing on forcing moves, checks, and tactical motifs. Pick 1–2 openings to rehearse with a simple plan for both colors.
  • Week 2: reinforce time budgeting. In every game, decide on a rough plan within the first 5 moves and adhere to it unless you see a clearly identified tactic or tactical concession by your opponent.
  • Week 3: endgame drills twice this week. Practice rook endings and pawn endings with set positions to improve technique under time pressure.
  • Week 4: review two recent blitz games in detail. Write down the top 2 learning points from each game and apply them in a small repertoire adjustment.

Opening performance snapshot and practical tips

  • Your results show solid activity in several lines; in particular, Caro-Kann defenses and Bishop’s Opening Vienna Hybrid show favorable results compared to some other lines. Consider leaning on these more in blitz to reduce risk and build confidence in the practical middlegame plans.
  • Keep a compact, easily executable repertoire for blitz. If you encounter unfamiliar replies, aim for solid, plan-driven lines rather than chasing sharp, complicated ideas under time pressure.
  • Use quick, safe developing moves in the opening and prioritize king safety and central control. A few extra preparatory moves that you’re comfortable with will save you time later in the game.

Strategic takeaways from your rating trend data

The longer-term trends suggest momentum and growth, with some fluctuations in shorter windows. Use that momentum to reinforce steady improvement habits: consistent practice, targeted opening work, and disciplined endgame play will help you sustain gains over time.

Reference resources



🆚 Opponent Insights

Recent Opponents
barca_hamilcar 2W / 0L / 0D
Giorgi Kacheishvili 0W / 1L / 0D
Aron Pasti 2W / 0L / 0D
trickertiger 1W / 0L / 0D
username748 1W / 0L / 1D
carokann-player33815 0W / 0L / 1D
furious_octopus 1W / 0L / 1D
r2d2-000 1W / 0L / 1D
endrju_zet 2W / 0L / 0D
mahdirezaee7 1W / 2L / 0D
Most Played Opponents
magionator 16W / 14L / 12D
kostya0705 9W / 8L / 7D
martimhernandez2 6W / 11L / 0D
dr_fruit_dubai 8W / 7L / 0D
drwonderkid 5W / 6L / 3D

Rating

Year Bullet Blitz Rapid Daily
2025 2659 2707 2423 1346
2024 2104 2402 2354 1104
2023 2179 2302 2263 1141
2022 1250 1682 2054
Rating by Year202220232024202527071104YearRatingBulletBlitzRapidDaily

Stats by Year

Year White Black Moves
2025 489W / 437L / 87D 432W / 492L / 102D 81.0
2024 321W / 315L / 67D 306W / 358L / 56D 71.1
2023 375W / 265L / 45D 332W / 284L / 55D 72.9
2022 110W / 59L / 7D 103W / 61L / 11D 69.9

Openings: Most Played

Blitz Opening Games Wins Losses Draws Win Rate
Unknown 274 138 134 2 50.4%
Sicilian Defense: Alapin Variation 193 92 84 17 47.7%
Sicilian Defense: Taimanov Variation, American Attack 182 75 85 22 41.2%
Caro-Kann Defense 135 68 58 9 50.4%
Sicilian Defense: Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik Line 123 52 57 14 42.3%
Sicilian Defense 91 47 37 7 51.6%
Amar Gambit 88 42 40 6 47.7%
Bishop's Opening: Vienna Hybrid, Hromádka Variation 80 45 27 8 56.2%
London System: Poisoned Pawn Variation 79 38 29 12 48.1%
Sicilian Defense: Closed 66 27 35 4 40.9%
Bullet Opening Games Wins Losses Draws Win Rate
Amar Gambit 195 106 79 10 54.4%
Caro-Kann Defense 81 41 37 3 50.6%
French Defense 56 26 26 4 46.4%
French Defense: Exchange Variation 55 31 20 4 56.4%
Caro-Kann Defense: Exchange Variation 36 17 18 1 47.2%
Amazon Attack 36 23 12 1 63.9%
London System: Poisoned Pawn Variation 34 14 20 0 41.2%
Czech Defense 31 11 17 3 35.5%
Sicilian Defense: Alapin Variation 27 15 10 2 55.6%
Barnes Defense 24 18 4 2 75.0%

🔥 Streaks

Streak Longest Current
Winning 15 2
Losing 11 0