mattias jonsson

Mattias Jonsson (aka mathoz)

Mattias Jonsson, affectionately known in the chess world as mathoz, is not your everyday chess player. Starting modestly with a Blitz rating of around 1395 back in 2010, Mattias has shown a persistent love for the game and a remarkable journey through the ranks. With a peak Blitz rating soaring to 1933 in October 2019, he's a formidable opponent both on the board and in the chat logs.

Playing Style

Known for his resilience, mathoz boasts an impressive 82.68% comeback rate—because why just win when you can dramatically snatch victory from the jaws of defeat? His games tend to be long affairs, averaging around 65 moves per win, proving he’s never in a rush to checkmate—you might say he enjoys the scenic route.

Mattias is equally comfortable playing white or black, with a slightly better success rate when wielding the white pieces (46.5% win rate). Never one to resign early (less than half a percent early resignation rate), he fights till the end and enjoys endgames a lot (showing up in 76.75% of his games), making him a tough out in the closing stages.

Openings & Strategies

mathoz is a bit of a mystery with his “Top Secret” opening—over 28,000 games featuring this enigma, landing him a win rate near 45%. But don’t mistake that for passivity; his favorite specialized gambits pack a punch. The Danish Gambit yields an 85% win rate, and the Philidor Defense isn’t far behind at 83%—he’s not afraid to throw caution (and pawns) to the wind. In Rapid and Bullet formats, he mixes it up with surprise openings, including Italian Game and French Defense variations, proving adaptability across all game speeds.

Competitive Record

With over 29,000 Blitz games, 22 Bullet games, and a more leisurely 38 Rapid battles under his belt, mathoz has seen it all—the wins, the losses, and the draws (though who has time for draws in Bullet?). His Blitz record reads like a chess soap opera: 12,961 wins to 14,398 losses and 1,159 draws. A true warrior of the 64 squares!

Personality & Trends

Mattias is an early riser in the chess world with his top performance time claimed around 4 AM—not that playing chess in your pajamas is unusual, but apparently, it’s when he’s sharpest. His psychological tilt factor is moderate at 15, meaning even after a stinging loss, he keeps his cool well (mostly).

Win rates by day and hour paint a consistent competitor, though his best chance to prevail might just be while the world sleeps—or at times like 4 AM, when the caffeine kicks in and the pawns start marching with extra gusto.

Recent Highlight

On June 4th, 2025, mathoz bagged a satisfying checkmate victory in a Chess960 game against Nickolaievich, demonstrating his prowess even in chess variants. Whether by timed tactics or sharp maneuvers, he can finish strong with style and substance.

Fun Fact

Despite his serious stats, mathoz's current winning streak is a neat 3 games—perhaps not world record-breaking, but hey, new streaks can start anytime… especially after a coffee!

Keep an eye on mathoz – he’s proof that chess is a marathon, a puzzle, and sometimes a wild adventure rolled into one.