Matthew Shuben — National Master and Speed Specialist
Matthew Shuben (also known online as arm_day) is a National Master whose online chess footprint reads like a sprint through modern opening theory and tactical chaos. A Bullet-first player who also crushes long Blitz and Rapid sessions, Matthew combines stubborn endgame tenacity with a fondness for offbeat openings and the occasional gambit that makes opponents spill their coffee.
Playstyle & Personality
Matthew is equal parts pragmatist and opportunist: he resigns early more than half the time when the position is hopeless (EarlyResignationRate ~0.51), but when there's life, he has a remarkable comeback instinct (ComebackRate ~82.6%). His games usually trek into complex middlegames and long endgames (EndgameFrequency ~82.9%), with decisive encounters averaging well past 70 moves.
- Preferred time control: Bullet — lightning reflexes and tactical alertness.
- Average moves per win: ~77.6 — not a quick finisher; Matthew grinds.
- Best playing hour (bio says): 13:00 — bring coffee and an opening prep folder.
- Psychology: modest tilt factor and a strong ability to recover after material loss.
Openings & Repertoire
Matthew loves mixing surprise with structure. His toolkit features the Amar Gambit and a variety of Modern/English systems — at once practical and spicy. White often starts with g3, and many of his most comfortable positions come from English/Agincourt and Caro‑Kann-style setups.
- Favorite and successful: Amar Gambit — a recurrent theme in Bullet and Blitz.
- Reliable choices: Modern Defense and English Opening lines (Caro‑Kann Defensive System, Drill Variation).
- Notable trait: plays g3 very frequently as White, keeping opponents out of ultra‑theoretical trenches.
Career Highlights & Stats Snapshot
Matthew’s results show sustained high-level online performance across time controls, with multiple peaks in 2025. He is dangerous in fast formats and has consistently converted complicated positions into wins.
- National Master title — recognized strength and consistent achievement.
- Huge peak performances in 2025–2026 across Bullet, Blitz and Rapid (see 2584 (2025-09-13) for a quick highlight).
- Longevity streaks: longest winning streak 15 games; strongest recovery runs when down material.
Memorable Rivals & Head-to-Head
Matthew has a few frequent sparring partners who appear on his scoreboard more than once. The most-played opponent in his database is catkeson — with a lopsided 32–13–2 record in Matthew’s favor — followed by a mix of tactical and positional players.
- Most-played opponent: Chris Atkeson (record 32–13–2).
- Other frequent adversaries: cosmicpoet, seppppppy, v-ampire, boundary90.
- Memorable online win: View memorable win
Behind the Numbers — What the Stats Say
Matthew tends to favor deep tactical skirmishes that reward preparation and endgame stamina. He gives checks often (the queen is his most active checking piece) and wins a strong share of games when he initiates the first check. His time-of-day win rates show interesting peaks — he’s particularly lethal in early afternoon and late evening sessions.
- High endgame involvement and long decisive games — ideal for opponents who prefer short tactical melees to avoid long conversions.
- Strong at converting initiative when playing White; solid practical defense as Black.
- Favorite first move in recent years: g3 (a practical weapon to take opponents off-script).
Fun Facts & Extras
Matthew is equal parts serious competitor and mischievous trickster. He’ll play a sweet Amar Gambit one minute and switch to a solid Caro‑Kann the next. For viewers and students, here are a few goodies to explore:
- Try a short example board:
- Interested in the Amar Gambit? Read more: Amar Gambit
- Sample trend graph:
Why Follow Matthew?
He’s a National Master who plays like he’s having fun — and forces you to have fun too, whether you’re defending a three‑pawn deficit or trying to remember theory against an early g3. If you like long, educational endgames, spicy opening choices, and the occasional bullet fireworks, Matthew (arm_day) is worth a follow.