Avatar of Marcus Vinicius Moreira Santos

Marcus Vinicius Moreira Santos IM

Username: abruptum

Location: Santo André

Playing Since: 2012-04-09 (Active)

Wow Factor: ♟♟♟♟♟

Chess.com

Daily: 2040
74W / 14L / 1D
Rapid: 1740
1W / 0L / 1D
Blitz: 2571
1693W / 1474L / 404D
Bullet: 2633
59W / 24L / 2D

Marcus Vinicius Moreira Santos

International Master & Chess Connoisseur

Marcus, known in the digital realms as abruptum, is an International Master who has battled countless pawns, knights, and rooks on the chessboard with a combination of tactical finesse and a hint of mischievous charm. Since bursting onto the blitz scene in 2014 with a perfect 1-0 start at a rating of 2115, Marcus has steadily climbed the ranks, peaking impressively at a blitz rating of 2533 in September 2021 — a number that might just represent their current coffee intake in milligrams.

A master of the fast-paced blitz, Marcus has played over 1600 blitz games, boasting a respectable win rate just under 50%, proving that even in lightning-fast encounters, careful strategy outweighs frantic button mashing. Not to be underestimated in bullet games either, Marcus reached a top rating near 2500, flashing lightning-quick moves while keeping cool under pressure.

Their style leans heavily on patience, with an 80% endgame frequency — because why rush to win when you can slowly squeeze the life out of your opponents? This ruthless endgame prowess is coupled with a comeback rate of 87%, showing that even if Marcus loses a piece, giving up is not in the playbook. Early resignations are practically a myth, clocking in at just 1%, likely because Marcus believes every game deserves its dramatic final act.

On average, a Marcus victory lasts around 77 moves, which must be music to fans who enjoy long, tense battles full of twists. Their games see a slightly higher success rate when playing White (51.36%) compared to Black (45.64%), but hey, everyone likes having the first move advantage – even chess titans.

Notable Career Highlights

  • Peak Blitz Rating: 2533 (September 2021)
  • Peak Bullet Rating: 2499 (May 2019)
  • Peak Daily Rating: 2089 (December 2015)
  • Peak Rapid Rating: 2005 (August 2017)
  • Longest Winning Streak: 15 games – that’s a fortnight of flawless chess domination!

Playing Style & Personality

Marcus is a strategic marathoner, not a sprinter. With a penchant for lengthy endgames and a proven track record of tactical awareness, this player knows the value of persistence and planning. Known to play their best around 11 AM – so if you want to catch Marcus on an off day, try scheduling your match at 6 PM instead.

Their psychological resilience is commendable, sporting a modest tilt factor of 10 (because even grandmasters have their "oops" moments), and a strong comeback ability that intimidates opponents who thought they'd already won.

Recent Battle Scenarios

One of Marcus' latest triumphs features a beautiful and clinical execution of the Caro-Kann Defense Panov Fianchetto, where abruptum maneuvered the board into a checkmate finishing with Rxh4#, proving that endgames are not only their forte but an art form.

However, even masters stumble. A recent loss saw Marcus challenged by the fierce SergejRachmaninoff in a Closed Sicilian Defense, illustrating that while Marcus’ journey is full of glorious victories, it’s peppered with much-earned lessons—often followed by a quick revenge match.

In Summary

Whether grinding through hundreds of blitz games or outlasting opponents in marathon-like matches, Marcus Vinicius Moreira Santos embraces the full spectrum of chess challenges with style, strategy, and a hint of cheeky fun. A player to watch, whose journey from a blitz newcomer to International Master is as inspiring as it is entertaining.

Profile generated with a pinch of humor and a hearty respect for Marcus’s chess prowess.

Coach Chesswick's Profile Photo
Coach Chesswick

Quick summary for Marcus Vinicius Moreira Santos

Nice run in recent blitz — you finish aggressively, convert advantages and force resignations instead of relying on flags. Below I pull specific highlights from your latest win and give a focused plan to keep improving in blitz.

Replay the key game:

Opponent in that game: giftedcreation.

What you’re doing well

  • Active piece play — you prioritize development and piece activity, often getting rooks/queen to the opponent’s back ranks quickly.
  • Creating concrete tactical threats — you routinely convert small advantages (capturing loose pawns, exploiting pins and forks) into decisive material gains.
  • Transitioning from middlegame to tactical finish — you turn initiative into mating/netting attacks instead of drifting into passive positions.
  • Resilience under time pressure — many wins are by resignation, which shows practical strength and confidence in outplaying opponents when it matters.

Main areas to improve (targeted and practical)

  • Avoid leaving tactical targets when you advance pawns. Several games show exchanges where a pawn push opens lines against your own pieces — check for enemy forks and discovered checks before pushing.
  • Move-order and piece coordination in the opening. A few opponents got knights to c4/b2 or traded into a comfortable knight outpost — tighten the move order to keep those squares contested.
  • Prophylaxis and slowing down counterplay. When you have the initiative, add one calm consolidating move (king safety or removing a defender) before committing to forcing lines.
  • Endgame technique / simplification choices. When ahead, make clearer conversion plans: trade into winning king+pawn/rook endgames, or keep queens if mates/net tactics remain possible. Decide earlier whether to simplify or keep pieces for a mating attack.
  • Blitz-specific time management: avoid multi-second calculation freezes on obvious moves. Use a 1–2 second pre-move rhythm for safe replies and reserve deep calculation for critical positions (captures, checks, pawns to promote).

Opening & middlegame advice

Keep using the openings that give you active play, and make two small adjustments:

  • Prepare specific plans for common opponent replies — e.g. against ...Nc4 jumps or ...Nc4/Nxb2 tricks, have a response that either trades the knight or covers the squares (knight to c3, a3 or direct central pressure).
  • Polish one or two transposition lines. Consolidate your favorite systems (for example, the lines you reach from the Scotch and Philidor in the recent PGNs) so you spend less time in the opening and more on critical middlegame decisions.

Concrete drills & exercises (daily / weekly)

  • Tactics: 20 minutes daily focused on pins, forks, and discovered attacks. Drill positions with forced sequences (2–5 moves) and check your calculation accuracy.
  • Mini-games: Play 10 blitz games where you deliberately practice one theme — e.g. "no pawn moves in first 10 moves" to work on piece play, or "always castle by move 6" to train king safety.
  • One lost-game review per day: pick a recent loss, go through it without an engine, identify the one decision that went wrong, then use engine just to verify. Keep notes of recurring decision types.
  • Endgame practice: 15 minutes twice a week on basic rook endgames and king+pawns. Convertible positions are common in blitz — quick technique saves points.

Time-management checklist for blitz

  • First 10 moves: play on intuition (1–3 seconds) unless there is a capture or tactical shot.
  • Reserve 30–45 seconds for the first critical decision (often where you can win a pawn or create an outpost).
  • When ahead materially, trade down safely — reduce complications; don’t chase extra material if it creates counterplay.
  • Use increment (if any) — in 3|0 or similar, avoid premoves in sharp positions; in 1|0, pre-move only safe recaptures.

Weekly plan (example)

  • Mon–Fri: 20m tactics + 5 blitz games (focus on applying that day’s tactic theme).
  • Sat: 30m endgame drills + 10 rapid games (10+5) analyzing one loss deeply.
  • Sun: Opening review 30m — pick 1 line (e.g. your Scotch/Philidor setups), play it out in 5 training games and note typical plans.

Small practical tips you can apply immediately

  • Before every move ask: “Is any of my pieces hanging or can the opponent create a fork/discovered attack?” — this single question reduces blunders dramatically.
  • When you see an enemy knight jump to c4/b2 or similar, calculate the forcing reply (can you trade or trap it?) before assuming it’s harmless.
  • If you have a one-move tactic available, check opponent's best reply for one extra tempo; sometimes the trap needs a preparatory move.
  • Keep a short post-session log: one line — what went well, one line — one recurring mistake. Over time patterns reveal themselves faster than raw stats.

Next steps

  • Apply the daily tactics + 1 lost-game review for two weeks and then reassess: you should see fewer tactical losses and better conversion in winning positions.
  • If you want, send me one loss (PGN or link) and I’ll give a focused post-mortem highlighting the single decision that flipped the game.
  • Keep reinforcing the openings that suit your style; if you like active piece play, prioritize lines that lead to open, tactical middlegames.

Closing

You're already doing many things right: aggression, tactics and finishing power. Small changes in move-order discipline, prophylaxis and blitz time management will convert many of your close losses into wins. If you want, I can prepare a short drill pack (10 tactical problems + 3 practice opening lines) tailored to the positions that appear in your recent games.

Would you like that drill pack or a focused post‑mortem on one specific loss next?



🆚 Opponent Insights

Recent Opponents
pedrolto 7W / 1L / 0D View
Most Played Opponents
Daniel Rangel 14W / 23L / 10D View Games
x-3704738925 9W / 12L / 7D View Games
aureliano-buendia 7W / 12L / 5D View Games
Morteza Mahjoob 9W / 12L / 1D View Games
stepanosinovsky 8W / 10L / 4D View Games

Rating

Year Bullet Blitz Rapid Daily
2025 2633 2571 1740
2024 2521
2023 2504 1740 2040
2021 2533
2020 2485
2019 2499 2481
2018 2470
2017 2348 2323 2005
2016 2294 1970 2040
2015 2161 2100 2066
2014 2100 2327 1413
2013 978
Rating by Year2013201420152016201720182019202020212023202420252633978YearRatingBulletBlitzRapidDaily

Stats by Year

Year White Black Moves
2025 20W / 8L / 1D 13W / 7L / 5D 76.1
2024 3W / 2L / 0D 2W / 1L / 2D 92.7
2023 483W / 389L / 168D 420W / 482L / 142D 81.4
2021 3W / 0L / 0D 3W / 0L / 0D 46.7
2020 49W / 38L / 5D 50W / 42L / 3D 77.1
2019 17W / 9L / 2D 14W / 15L / 2D 77.0
2018 203W / 147L / 28D 188W / 171L / 25D 78.3
2017 22W / 5L / 1D 20W / 8L / 2D 75.3
2016 5W / 6L / 0D 6W / 2L / 0D 65.2
2015 51W / 23L / 0D 54W / 19L / 2D 61.0
2014 105W / 61L / 7D 82W / 69L / 13D 79.8
2013 2W / 2L / 0D 2W / 2L / 0D 9.5

Openings: Most Played

Blitz Opening Games Wins Losses Draws Win Rate
Modern 286 146 122 18 51.0%
Modern Defense 117 60 46 11 51.3%
Sicilian Defense: Closed 86 43 35 8 50.0%
Australian Defense 84 43 34 7 51.2%
Slav Defense 76 48 22 6 63.2%
King's Indian Defense: Averbakh Variation 74 34 35 5 46.0%
Amazon Attack: Siberian Attack 60 21 29 10 35.0%
Czech Defense 59 32 24 3 54.2%
Caro-Kann Defense 57 28 21 8 49.1%
English Opening: Agincourt Defense 55 25 23 7 45.5%
Daily Opening Games Wins Losses Draws Win Rate
Modern 14 14 0 0 100.0%
Modern Defense 6 4 1 1 66.7%
Australian Defense 5 4 1 0 80.0%
Sicilian Defense 4 1 2 1 25.0%
Modern Defense: Pterodactyl Variation 4 4 0 0 100.0%
London System: Poisoned Pawn Variation 3 2 1 0 66.7%
QGA: 3.e3 c5 3 3 0 0 100.0%
Czech Defense 3 3 0 0 100.0%
King's Indian Defense: Larsen Variation 2 1 1 0 50.0%
Caro-Kann Defense: Bronstein-Larsen Variation 2 2 0 0 100.0%
Rapid Opening Games Wins Losses Draws Win Rate
Barnes Defense 1 0 0 1 0.0%
Ruy Lopez: Brix Variation 1 1 0 0 100.0%
Four Knights Game: Spanish Variation 1 1 0 0 100.0%

🔥 Streaks

Streak Longest Current
Winning 15 7
Losing 10 0
🐞 Report a Problem