Avatar of Yesun Lee

Yesun Lee WCM

Username: sunnilee

Playing Since: 2016-06-25 (Active)

Wow Factor: ♟♟♟♟♟♟♟

Chess.com

Daily: 1738
48W / 41L / 2D
Rapid: 2052
79W / 63L / 22D
Blitz: 2161
508W / 407L / 54D
Bullet: 2177
6269W / 5894L / 846D

Overview

Yesun Lee (sunnilee) is a Woman Candidate Master (WCM), prolific chess streamer and a Daily chess specialist who also crushes the clock in Bullet and Blitz. Known online for energetic streams and an appetite for gambits, Yesun combines hard-practice opening prep with a love of chaotic tactical positions—perfect SEO-friendly keywords: Yesun Lee chess, WCM, streamer, Daily chess, Bullet, Blitz, Amar Gambit, London System.

  • Title: Woman Candidate Master (WCM)
  • Username: sunnilee
  • Preferred time control: Daily (also extremely active in Bullet and Blitz)
  • Peak ratings (selected): 2468 (2025-04-26), 2260 (2025-03-27), 2082 (2021-04-23), 1738 (2025-08-27)

Career highlights

  • Huge Bullet presence — tens of thousands of games across years with an all-time competitive peak and a reputation for grinding long sessions.
  • Reached top-form spikes in 2020–2025 across Bullet and Blitz play, turning a tactical, fast-play style into consistent wins and entertaining streams.
  • Notable streaks: longest winning streak 24 games; longest losing streak 29 games — proof that Yesun plays in streaks and always bounces back.
  • Frequently faces a stable pool of opponents (most-played: roseychess) — roseychess.

Playing style & favorite openings

Yesun favors dynamic, imbalanced positions and is not afraid to gamble early. The style blends tactical skirmishes with long endgame experience (high endgame frequency and long average game lengths), making for thrilling broadcasts and instructive post-game analysis.

  • Gambit lover: Amar Gambit — strong win rates in fast time controls.
  • Solid and sneaky: London System: Poisoned Pawn Variation is a recurring weapon.
  • Also plays the Australian Defense and various closed Sicilian lines to steer games into rich maneuvering battles.
  • Top openings by performance (sample): Amar Gambit, London System: Poisoned Pawn Variation, Australian Defense, Sicilian Defense (Closed).

Streaming & community

Yesun streams regularly, blending instructive commentary with banter and interactive analysis. The channel appeals to tactical players, opening experimenters, and anyone who enjoys an animated coach who will both explain mistakes and celebrate swindles.

  • Community persona: sharp, candid, and playful — sometimes calls out “Loose Piece” moments and loves a good “Swindle.”
  • Best time of day to catch peak performance: around 14:00 (local play/peak focus).
  • Often reviews long Daily games on stream — a great resource for players who want to study endgames and conversion technique.

Records & notable stats

Yesun’s activity and results paint the picture of a dedicated online competitor and content creator.

  • Win/Loss/Draw totals by time control:
    • Bullet: 6714 / 6514 / 866
    • Blitz: 656 / 396 / 50
    • Rapid: 126 / 71 / 33
    • Daily: 57 / 43 / 2
  • Endgame frequency is very high and average decisive games run long — excellent for viewers who like deep instructional content.
  • Psychological notes: tilt factor 29 — competitive and emotionally invested; tends to produce exciting comebacks and crushing finishes.

Fun facts & interactive

  • Yesun’s streams mix serious opening theory with coffeehouse-style chaos — expect a mix of Home Prep, Novelty hunting, and occasionally a Botez-Gambit-style laugh (but intentional!).
  • Fans praise helpful post-game analysis and clear explanations of tactical themes like forks, skewers and batteries.
  • Explore a sample rating trend:
    Bullet Rating201920202021202220232024202523301761YearBullet Rating
  • Wanna study a rival? Check the most-played opponent: roseychess.

Placeholder notes: add your favorite stream clip or game link here — streaming content and PGN embeds work well for community pages.


Coach's Avatar

Feedback for Yesun Lee

Great job on your recent games! Here are some constructive observations and advice to help you continue improving:

Strengths

  • Strong Tactical Awareness: Your ability to spot tactical shots and force checkmate patterns is evident, especially in your wins recorded recently. For example, your precise conversion in the game ending with Qxg5# shows good attention to detail and recognizing mating nets.
  • Opening Repertoire: You demonstrate familiarity with a variety of openings including Queens Pawn structures, Sicilian Defense lines, and Ruy Lopez variations. Your move selections in the opening help you reach solid middlegame positions.
  • Endgame Technique: Some wins show good endgame awareness, converting material advantages methodically without unnecessary risk.

Areas for Improvement

  • Time Management: In your losses, time trouble seems to have affected your play. Try to pace yourself throughout the game, spending time proportionally on critical moments but avoiding time pressure in the endgame.
  • Positional Understanding: Occasionally, you exchanged pieces or pawns that allowed your opponent easier counterplay or initiative, such as in some lost games where your pawn structure or piece activity weakened after exchanges. Working on recognizing when to keep tension or improve piece placement could help.
  • Mistake Minimization: Some losses had tactical oversights or missed opportunities to simplify or improve your position safely. Consider focusing on blunder checks and candidate move identification during critical positions.

Suggestions for Study

  • Review typical pawn structures in your favorite openings to better understand plans and piece placement.
  • Practice exercises on time management and critical decision-making to improve your performance in timed games.
  • Enhance tactical training with puzzles to maintain sharpness while also including positional exercises for long-term strategic improvement.
  • Analyze your losses carefully to find recurring themes or mistakes, which can guide your focused improvement.

Overall

Yesun, your recent results show promising progress and a solid foundation. By continuing to balance tactical sharpness with deeper positional understanding and improving time management, you will see steady rating gains and stronger performance in competitive games. Keep up the consistent practice and enjoy your chess journey!



🆚 Opponent Insights

Recent Opponents
cornbreadknightater 1W / 0L / 0D
mr_bi25 0W / 1L / 0D
aninquisitor 0W / 2L / 0D
beardedpilot64 1W / 2L / 0D
disguisedvegemite 1W / 0L / 0D
spikyoil2 0W / 1L / 0D
whycantiplacemypawnona1 0W / 0L / 1D
danielalvarezpr 1W / 0L / 0D
electick 1W / 0L / 0D
hunterjj11 1W / 0L / 0D
Most Played Opponents
Nicholas Rosenthal 20W / 398L / 10D
Prefe1966 30W / 66L / 9D
danioo 19W / 38L / 0D
themarmot 21W / 23L / 2D
bobbyfischerthe3rd 18W / 21L / 1D

Rating

Year Bullet Blitz Rapid Daily
2025 2177 1782 2052 1738
2024 2141
2023 2190 1836
2022 2122 1986 1909
2021 2127 1961 2012 1522
2020 2330 1459 1911 1512
2019 1761 1780 1402
2018 1160 972 1328
2017 987 1229 1205 1241
2016 1068 1422 1163 1021
Rating by Year20162017201820192020202120222023202420252330972YearRatingBulletBlitzRapidDaily

Stats by Year

Year White Black Moves
2025 1125W / 1249L / 159D 1039W / 1330L / 166D 87.0
2024 218W / 191L / 30D 213W / 204L / 24D 84.0
2023 104W / 75L / 15D 91W / 96L / 18D 84.7
2022 125W / 93L / 13D 108W / 102L / 14D 79.3
2021 354W / 314L / 55D 384W / 289L / 45D 83.6
2020 839W / 691L / 109D 817W / 700L / 119D 82.1
2019 800W / 622L / 77D 756W / 642L / 81D 73.5
2018 29W / 14L / 0D 26W / 17L / 0D 48.2
2017 99W / 69L / 4D 95W / 85L / 5D 53.8
2016 171W / 118L / 8D 160W / 123L / 9D 53.0

Openings: Most Played

Bullet Opening Games Wins Losses Draws Win Rate
Australian Defense 1134 569 493 72 50.2%
London System: Poisoned Pawn Variation 974 448 467 59 46.0%
Benoni Defense: Benoni Gambit Accepted 776 368 357 51 47.4%
Amar Gambit 720 368 323 29 51.1%
Sicilian Defense: Closed 664 308 316 40 46.4%
Colle System: Rhamphorhynchus Variation 447 215 197 35 48.1%
Bird Opening: Dutch Variation, Batavo Gambit 436 194 225 17 44.5%
Sicilian Defense: Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik Line 409 188 200 21 46.0%
Sicilian Defense 355 175 160 20 49.3%
Sicilian Defense: Four Knights Variation, Cobra Variation 344 166 148 30 48.3%
Blitz Opening Games Wins Losses Draws Win Rate
London System: Poisoned Pawn Variation 83 57 25 1 68.7%
Amar Gambit 74 57 16 1 77.0%
Scotch Game 54 29 23 2 53.7%
Australian Defense 46 26 20 0 56.5%
Sicilian Defense: Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik Line 41 28 11 2 68.3%
French Defense 29 18 6 5 62.1%
Sicilian Defense: Closed 28 14 12 2 50.0%
Barnes Defense 27 18 8 1 66.7%
Sicilian Defense: Accelerated Dragon 27 14 13 0 51.9%
Barnes Opening: Walkerling 27 16 11 0 59.3%

🔥 Streaks

Streak Longest Current
Winning 24 1
Losing 29 0