Hongsen Chen — International Master and Blitz Specialist
Hongsen Chen (also known online as 7vault) is an International Master (International Master) best known for blazing through opponents in fast time controls. A true Blitz aficionado (Blitz), Hongsen combines deep opening preparation with a knack for chaotic, tactical games — the kind that make spectators spill their coffee.
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Career Snapshot & Playing Rhythm
Hongsen’s preferred time control is Blitz, where he has produced many of his signature victories. He plays especially well late at night — his best time of day is around 23:00 — and enjoys long, decisive encounters rather than early resignations.
- Preferred time control: Blitz (Blitz)
- Peak performance indicator: 3117 (2026-01-18)
- Playing tendencies: high endgame frequency, long decisive games (avg decisive length ≈ 85 moves)
- Psychology: strong comeback ability and resilient after material losses
Style & Strengths
A resilient attacker who loves the grind, Hongsen often trades early material for long-term practical chances. His games show a high endgame frequency and a remarkable ability to win even after losing a piece — a testament to tactical awareness and tenacity.
- Endgame frequency: high (plays long, technical endings)
- Comeback rate and tenacity: excellent — wins often even after setbacks
- Avg moves per win: ~74; per loss: ~122 (games rarely end quickly)
- Best hours: late evening and night (23:00 is peak)
Notable Openings & Repertoire Highlights
Hongsen’s Blitz repertoire mixes reliable systems with surprise gambits. He is comfortable both with White and Black, and several lines have extremely high win rates for him.
- Sicilian (Closed) — stalwart and often fruitful in practice
- Czech Defense — one of his most successful Black choices
- Four Knights Game — a flexible, attacking toolkit
- French MacCutcheon/Wolf Gambit and London Poisoned Pawn — spicy choices that score well
- Occasional trap play: Blackburne Shilling Gambit shows his taste for theatrics
Top opening performances (Blitz): Czech Defense (win rate ~84%), French MacCutcheon Wolf Gambit (~83%), London Poisoned Pawn (~80%).
Explore common themes: Sicilian Defense: Closed • Czech Defense • Four Knights Game
Notable Opponents & Records
Hongsen has faced many strong online rivals. He has dominant records versus several frequent opponents — perfect for use as confidence boosters or highlight reels.
- rubulome — 11 wins, 0 losses (rubulome)
- nihalsarin — 2–4–2 (Nihal Sarin)
- santoblue — 4–3–0 (Vahap Sanal)
- tusplingher — 5–0–0 (Dumitru-Daniel Dinu)
- alexander_khlebovich — 4–0–0 (Alexander Khlebovich)
Memorable Game Example (Blitz)
A typical Hongsen win often begins with mainstream opening moves and dissolves into a long tactical struggle. Below is a representative Blitz game fragment (move list) you can replay in a viewer.
Streaks, Habits & Fun Facts
Hongsen enjoys streaks — including a longest recorded winning run of 14 games — and rarely tilts for long. He’s known to schedule games late, where his win rates spike.
- Longest winning streak: 14 games
- Typical hour to strike: 23:00 (best results)
- Love of checks: delivers a lot of rook and queen checks (most common checking piece: rook)
- Sense of humor at the board: “If the clock smiles, make it cry” — often uttered after an unexpected comeback
Where to Watch & Learn More
Want to follow Hongsen’s games or study his Blitz specialty? Check opponent pages and replay games from his Blitz archive. Highlights and peak moments are often found in late-night sessions.
- Peak performance snapshot: 3117 (2026-01-18)
- Replay a typical face-off vs a frequent rival: rubulome
- Study openings he favors: Sicilian Defense: Closed, Czech Defense
Final Note
Hongsen Chen is the kind of player who turns fast games into mini-epics. Whether you’re a student of openings, a fan of endgame battles, or someone looking for Blitz inspiration, his games are a rich resource — and usually entertaining.
Want more? Ask for annotated games, opening drills based on Hongsen’s repertoire, or a list of his most instructive comebacks.