Avatar of Mateus Birtan

Mateus Birtan

Username: cogumeloti

Playing Since: 2021-01-18 (Active)

Wow Factor: ♟♟

Chess.com

Rapid: 522
154W / 142L / 12D
Blitz: 232
0W / 1L / 0D

Mateus Birtan (aka cogumeloti)

Mateus Birtan is a rapid chess enthusiast whose journey through the 64 squares has been nothing short of a rollercoaster ride. Starting in 2021 with a lightning-fast peak rating of 672, Mateus dove into the world of rapid chess with a perfect 1-0 record on his very first rated game. Since then, his rating has ebbed and flowed like a tactical pawn storm – dipping down to around 348 at one point, only to rebound back near the 600 mark with gritty determination.

Known online as cogumeloti, Mateus’ approach to chess is as colorful as his username. With a career total of 154 wins, 141 losses, and a handful of draws in rapid games, he’s shown resilience, never shying away from the fight, even if it sometimes means a tough lesson or two on the board. He boasts an impressive knack for comebacks, winning over 64% of his games after trailing, proving that giving up is not in his repertoire.

When it comes to openings, Mateus enjoys mixing things up. Classics like the Queen’s Pawn Opening and its tricky Zukertort Variation play a starring role, with a noteworthy 75% win rate there. The Sicilian Defense also gets its due respect, especially the Smith Morra Gambit and Bowdler Attack – Mateus balances risks with a steady 50% win rate, ready to dance on the razor’s edge. Novelty? He tries them too, but against the English Opening Reversed Sicilian Variation he’s known to sometimes meet equal resistance.

His tactical patience shines through longer games, averaging around 48 moves in wins and over 55 in losses – showing he’s willing to dig deep into complex endgames. White or Black? Mateus doesn’t discriminate, with a near-even split of victories and a teeny edge playing Black (50.65% wins).

Psychological profile? Mateus has a modest tilt factor of 6, which means he gets frustrated maybe as often as we all do, but his best time to play is reportedly around 3 PM – so set your clocks if you want to challenge him then. Despite a couple of tough current streaks (losing four in a row), he once enjoyed a six-game winning streak – no doubt a streak of cunning moves and bluffed opponents.

If there’s a playful motto for Mateus’ chess persona, it might be: “Never too early to resign, unless you’re winning.” With a 5.63% early resignation rate, he sometimes takes the scenic route back to the drawing board when things look bleak, but always with the warrior spirit ready for the next game.

Recent Highlights

- Most recently, Mateus clinched a brilliant checkmate against AlexKunin in a sharp Sicilian Defense, showcasing his attacking flair.
- Close battles, such as against RuffPawn and WafflesandButters, have tested his mettle, sometimes ending in defeat but always with lessons learned for the next encounter.

In the chaotic battlefield of online chess, Mateus Birtan remains a fearless tactician and combative spirit, always ready to dive into the fray with a mushroom-inspired username and a hunger for victory.


🆚 Opponent Insights

Most Played Opponents
mcnaninha1 6W / 4L / 0D
c_perry18 2W / 0L / 0D
kamisynha 1W / 1L / 0D
wafflesandbutters 1W / 1L / 0D
mikolaj1213 1W / 0L / 0D

Rating

Year Bullet Blitz Rapid Daily
2025 559
2024 232 579
2023 458
2021 672
Rating by Year2021202320242025672458YearRatingRapid

Stats by Year

Year White Black Moves
2025 0W / 0L / 0D 0W / 1L / 0D 53.0
2024 75W / 70L / 7D 78W / 70L / 4D 53.4
2023 0W / 1L / 0D 0W / 0L / 1D 83.5
2021 1W / 0L / 0D 0W / 0L / 0D 85.0

Openings: Most Played

Rapid Opening Games Wins Losses Draws Win Rate
Queens Pawn Opening 39 17 20 2 43.6%
Queens Pawn Opening Horwitz Defense 8 5 3 0 62.5%
Sicilian Defense Bowdler Attack 8 4 4 0 50.0%
Sicilian Defense Smith Morra Gambit 8 4 3 1 50.0%
Queens Pawn Opening Zukertort Variation 8 6 2 0 75.0%
French Defense 8 5 3 0 62.5%
Sicilian Defense 7 5 1 1 71.4%
English Opening Reversed Sicilian Variation 6 2 4 0 33.3%
Queens Pawn Opening Mikenas Defense 6 2 4 0 33.3%
Petrovs Defense Three Knights Game 6 2 3 1 33.3%
Blitz Opening Games Wins Losses Draws Win Rate
Petrovs Defense Urusov Gambit 1 0 1 0 0.0%

🔥 Streaks

Streak Longest Current
Winning 6 0
Losing 6 4