Jan Enrique Zepeda (JAN2404) — Candidate Master
Jan Enrique Zepeda, who also plays under the handle JAN2404, is a Candidate Master (FIDE) and a fierce fan of fast chess — Bullet clearly suits their instincts. A tactical-minded player with a taste for sharp openings and dramatic comebacks, Jan rose from casual games in 2013 to high-level online competition by 2025.
Quick facts: preferred time control — Bullet; celebrated for resilience (high comeback rate) and long endgames. Peak performances include notable highs in Rapid, Blitz and Bullet play (2314 (2025-08-31), 2323 (2025-09-30), 2303 (2025-09-26)).
Career highlights
- Earned the Candidate Master title and built a steady climb from club-level play (2013) into the 2200–2300 range online by 2025.
- Longest winning streak: 14 games — evidence that when Jan's calculations click, they really click.
- Remarkable comeback ability: over 77% comeback rate after difficult positions, showing tenacity and psychological resilience.
- Frequent competitor across Bullet, Blitz and Rapid with heavy tournament volume in recent years (notably 2024–2025).
Playing style & tactical profile
Jan is equal parts scrappy speedster and endgame grinder — a combo that makes them dangerous in short time controls and surprisingly dangerous in long fights too.
- Endgame frequency: high — Jan often turns tactical middlegames into long endgames (EndgameFrequency ≈ 70.85%).
- Average game lengths: wins and losses both tend to be long (AvgMovesPerWin ~63; AvgMovesPerLoss ~72) — expect marathon finishes.
- Tactical strengths: comeback specialist (ComebackRate ~77%), and a solid conversion rate even after material loss (WinRateAfterLosingPiece ≈ 41.9%).
- Psychology: moderate tilt factor — Jan bounces back but knows when to take a walk after a bad run (TiltFactor ≈ 19). Best time to challenge Jan? Early morning — 07:00 shows a strong win rate.
Openings & repertoire
Jan fields an eclectic but battle-tested repertoire. A recurring theme: aggressive Sicilian lines and surprise gambits that punish passive opponents.
- Main weapons in fast games: Sicilian Defense (very frequently), the Amar Gambit, and a confident English Opening setup.
- Bullet specialties: strong win rate with the English Opening (Agincourt Defense in small sample) and excellent results in sharp Sicilian lines.
- Coach’s note: prepare for unorthodox early gambits — Jan loves practical imbalance and time-pressure tactics.
Notable rivals & matchups
Jan has faced several repeat opponents online. The most-played adversary is a familiar nemesis:
- trytobeatmebruh — 67 games (a long rivalry full of swings). See opponent profile: trytobeatmebruh.
- Other frequent opponents: ludwika, abelking7, kingdamian1 — players Jan has squared off with dozens of times.
Fun stuff & extras
For the curious spectator — a compact tactical puzzle from Jan’s style (an illustrative miniature):
- Study this quick line and imagine the clock ticking:
- Want to see Jan’s rating trend? A quick visual:
- Play Jan when they’re caffeinated at 07:00 if you dare — their morning win rates spike.
(Placeholders above will render richer widgets in a compatible viewer.)
Why follow Jan Enrique Zepeda?
Because Jan combines speed, stubbornness, and a love of messy positions. Expect dramatic turnarounds, entertaining gambit play, and the occasional long endgame that tests your patience. If you enjoy watching someone fight until the last second — preferably while muttering about time increments — Jan is your player.
Quick summary
Nice run of fast games — you’re converting advantages and playing actively. Your recent win shows good piece activity and pressure; your recent loss shows typical endgame/king-activity issues. Overall your long-term trend is strongly up, so small, targeted fixes will give big returns.
What you’re doing well
- You play actively and look for concrete chances early — making the opponent respond (good attacking instinct).
- Your opening repertoire includes sharp, practical lines (for example Sicilian Defense), and you score well there — you get imbalances and winning chances.
- In bullet you convert advantages quickly instead of overcomplicating — that was evident in your win that ended on time with you already in a winning position.
- Good tactical awareness under time pressure: you find forcing moves and basic tactics in the heat of the moment.
Biggest areas to improve (fast wins in practice)
- Endgame technique — especially king activity and converting pawn endings. Your loss shows the opponent’s king and passed pawns becoming decisive. Drill king opposition and key squares for single-pawn races.
- Time management in critical moments. A lot of games end by flag or quick resignation; keep a short checklist before each move (checks, captures, threats).
- Avoid impulsive material grabs when your king is exposed or you give the opponent counterplay. In several games you won material but had to fight to keep the advantage.
- Transitions to simplified endgames: trade when you are clearly better and avoid giving the defender counterplay with active piece maneuvers.
Concrete drills (15–30 minutes/day)
- Daily tactics: 12–18 mixed puzzles focused on forks, pins and discovered attacks. Aim for pattern recognition, not just speed.
- Pawn-endgame mini-drills: 8 positions of king-and-pawn vs king (opposition, distant opposition, key squares). Repeat until automatic.
- Play 6–10 games at 3|0 or 5|0 (not bullet) and pause two times per game to ask “what changed my plan?” — forces slower, clearer thinking.
- One slow annotated review: pick your most recent loss, go through moves without engine first, then check 2–3 critical moments with an engine for ideas to remember.
Bullet-specific tips (practical, immediate)
- Checklist before each move (one-second scan): Are there checks? Can I be pinned or forked? Does this move lose material?
- Use safe pre-moves only when you’re certain (captures that are obviously legal). Too many risky pre-moves cost material/time.
- If ahead simplify to a winning endgame quickly — reduce tactics the defender can use to generate counterplay.
- Keep your king safer early in the game. Many fast defeats come from exposed kings + one tactical blow.
Opening & repertoire notes
- Keep playing the lines where you score well (your stats show good win rates in the English and many Sicilian lines). Solidify 2–3 move orders so you can play them blind in bullet.
- If you like sharp gambits (you do), drill a handful of tactical motifs that occur there so the follow-up is automatic instead of guesswork.
- When you get an extra pawn early, ask: “Can I trade queens and head to a simple pawn ending?” If yes, do it in bullet.
Endgame focus — what to practice now
- King + pawn vs king: opposition, triangulation, outside passed pawn ideas. These win or save many practical games.
- Basic bishop vs knight conversions and bishop-pair vs lone minor piece plans — many of your games reach simplified minor-piece endgames.
- Rook endgame fundamentals (if time permits): cut-off, active rook concepts — convert with the king in front of the pawn.
Study plan for the next two weeks
- Days 1–7: 15 min tactics + 10 min pawn-endgames + 5 rapid practice games (3|0). Review one loss each day.
- Days 8–14: 15 min tactics + 10 min opening move-order drills for your top two Sicilian/English lines + 5 rapid games. Review one win to see what you did well.
- At the end of week 2: pick your favorite lost position and create a one-page cheat sheet of plans and key squares for that pawn structure.
Tools & resources (quick)
- Use a tactics trainer with themes (forks, pins, discovered attack) — 15 minutes/day beats random puzzle spam.
- Practice king-and-pawn endings in a dedicated endgame trainer or set positions and play them out against an engine on low depth.
- Review one game per day with a coach or engine — focus on turning points and one recurring mistake to fix.
Examples & references
Here’s a replay of the winning game you just sent (you were White). Review the moments where you traded into a winning minor-piece endgame and forced your opponent on the clock.
Next steps for your next session
- Do 15 minutes of targeted tactics (forks/pins/discovered attacks).
- Run 8 pawn-endgame exercises (king opposition focus).
- Play 5 rapid games (3|0) and deliberately trade into simple endgames when you are ahead.
- Review one loss with a short checklist: where did my king become passive? where did I lose the pawn race?
Want me to review one specific game?
Send the game link or tell me which game (for example vs yourchesscoach123 or yisuszgz14). I can annotate the critical 3–5 moves that decided the result and give you specific alternative moves to memorize.
🆚 Opponent Insights
| Recent Opponents | ||
|---|---|---|
| Jan Murawski | 1W / 4L / 1D | View |
| nowinchess | 2W / 1L / 0D | View |
| gerlee15 | 1W / 0L / 0D | View |
| slawomir_kurpiewski | 2W / 0L / 0D | View |
| sanbruh | 1W / 3L / 0D | View |
| lucasportolelis | 0W / 0L / 1D | View |
| lucaprotopopescu | 0W / 1L / 0D | View |
| advik1b | 0W / 1L / 0D | View |
| beast_20_20 | 0W / 1L / 0D | View |
| samdanov | 1W / 0L / 0D | View |
| Most Played Opponents | ||
|---|---|---|
| trytobeatmebruh | 20W / 42L / 5D | View Games |
| ludwika | 20W / 7L / 1D | View Games |
| abelking7 | 12W / 4L / 0D | View Games |
| kingdamian1 | 6W / 9L / 1D | View Games |
| Jayadev s | 5W / 4L / 3D | View Games |
Rating
| Year | Bullet | Blitz | Rapid | Daily |
|---|---|---|---|---|
| 2025 | 2243 | 2304 | 2304 | |
| 2024 | 1881 | 2205 | 2101 | |
| 2023 | 1868 | 1965 | 1895 | 1895 |
| 2021 | 1855 | 1898 | ||
| 2020 | 1608 | 1839 | 1898 | 1368 |
| 2019 | 1618 | 1831 | 1896 | 1478 |
| 2018 | 1183 | 1555 | 1853 | 1727 |
| 2017 | 1119 | 1342 | 1661 | 1560 |
| 2016 | 1227 | 1431 | 1769 | 1003 |
| 2015 | 1306 | 1687 | 895 | |
| 2014 | 720 | 719 | 1520 | 895 |
| 2013 | 574 | 692 | 906 | 926 |
Stats by Year
| Year | White | Black | Moves |
|---|---|---|---|
| 2025 | 216W / 284L / 31D | 199W / 330L / 30D | 73.8 |
| 2024 | 130W / 195L / 18D | 118W / 238L / 13D | 73.5 |
| 2023 | 124W / 146L / 4D | 122W / 141L / 18D | 71.6 |
| 2021 | 3W / 0L / 0D | 0W / 2L / 0D | 60.4 |
| 2020 | 22W / 17L / 0D | 20W / 17L / 2D | 72.2 |
| 2019 | 180W / 147L / 18D | 193W / 145L / 11D | 68.1 |
| 2018 | 132W / 111L / 22D | 145W / 107L / 8D | 73.1 |
| 2017 | 138W / 168L / 15D | 131W / 171L / 21D | 65.4 |
| 2016 | 197W / 133L / 27D | 169W / 169L / 16D | 73.3 |
| 2015 | 281W / 233L / 16D | 254W / 246L / 28D | 69.3 |
| 2014 | 239W / 234L / 12D | 236W / 223L / 24D | 63.7 |
| 2013 | 58W / 68L / 6D | 59W / 72L / 7D | 57.0 |
Openings: Most Played
| Blitz Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Sicilian Defense | 230 | 108 | 106 | 16 | 47.0% |
| Bird Opening: Dutch Variation, Batavo Gambit | 106 | 44 | 56 | 6 | 41.5% |
| Amar Gambit | 99 | 51 | 46 | 2 | 51.5% |
| Amazon Attack: Siberian Attack | 84 | 37 | 44 | 3 | 44.0% |
| Sicilian Defense: Alapin Variation | 83 | 29 | 49 | 5 | 34.9% |
| Sicilian Defense: Classical Variation | 79 | 34 | 43 | 2 | 43.0% |
| Barnes Defense | 74 | 37 | 34 | 3 | 50.0% |
| Scandinavian Defense | 74 | 29 | 39 | 6 | 39.2% |
| Sicilian Defense: Closed | 73 | 31 | 39 | 3 | 42.5% |
| Caro-Kann Defense | 66 | 23 | 39 | 4 | 34.9% |
| Rapid Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Sicilian Defense | 206 | 97 | 97 | 12 | 47.1% |
| Sicilian Defense: Closed | 84 | 45 | 38 | 1 | 53.6% |
| Amazon Attack | 73 | 36 | 31 | 6 | 49.3% |
| Philidor Defense | 71 | 35 | 33 | 3 | 49.3% |
| Sicilian Defense: Alapin Variation | 70 | 35 | 30 | 5 | 50.0% |
| Caro-Kann Defense | 67 | 36 | 27 | 4 | 53.7% |
| Amar Gambit | 66 | 36 | 28 | 2 | 54.5% |
| Sicilian Defense: Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik Line | 64 | 36 | 27 | 1 | 56.2% |
| Amazon Attack: Siberian Attack | 58 | 27 | 27 | 4 | 46.5% |
| English Opening: King's English Variation, Four Knights Variation, Fianchetto Line | 58 | 23 | 32 | 3 | 39.7% |
| Bullet Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Sicilian Defense | 54 | 31 | 20 | 3 | 57.4% |
| Amar Gambit | 32 | 16 | 16 | 0 | 50.0% |
| English Opening | 28 | 18 | 9 | 1 | 64.3% |
| Scandinavian Defense | 26 | 12 | 14 | 0 | 46.1% |
| Sicilian Defense: Classical Variation | 24 | 11 | 11 | 2 | 45.8% |
| Sicilian Defense: Closed | 20 | 7 | 12 | 1 | 35.0% |
| Amazon Attack: Siberian Attack | 20 | 10 | 9 | 1 | 50.0% |
| English Opening: Agincourt Defense | 19 | 14 | 5 | 0 | 73.7% |
| Czech Defense | 17 | 10 | 7 | 0 | 58.8% |
| Bird Opening: Dutch Variation, Batavo Gambit | 17 | 7 | 5 | 5 | 41.2% |
| Daily Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Sicilian Defense | 12 | 9 | 2 | 1 | 75.0% |
| English Opening | 11 | 5 | 6 | 0 | 45.5% |
| English Opening: King's English Variation, Four Knights Variation, Fianchetto Line | 11 | 8 | 3 | 0 | 72.7% |
| Amar Gambit | 8 | 3 | 5 | 0 | 37.5% |
| Barnes Opening: Walkerling | 8 | 1 | 7 | 0 | 12.5% |
| English Opening: King's English Variation | 7 | 5 | 2 | 0 | 71.4% |
| King's Indian Defense: Larsen Variation | 7 | 4 | 2 | 1 | 57.1% |
| English Opening: Drill Variation | 7 | 3 | 4 | 0 | 42.9% |
| English Opening: Symmetrical Variation, Fianchetto Variation | 7 | 4 | 3 | 0 | 57.1% |
| KGD: Falkbeer, Marshall/Nimzowitsch, 4.dxc6 | 6 | 3 | 2 | 1 | 50.0% |
🔥 Streaks
| Streak | Longest | Current |
|---|---|---|
| Winning | 14 | 0 |
| Losing | 19 | 0 |