kareltje2012: The Blitz Marathoner
The Player Behind the Username
If chess.com had a frequent flyer program, kareltje2012 would be in first class. Since their first recorded games in late 2018, this account has played more than 65,000 rated Blitz games. That is not a hobby, it is a lifestyle. Their preferred time control is unmistakably Blitz, and they have climbed to a peak rating of 2443 (2026-09-03) by sheer volume, resilience, and an almost supernatural tolerance for the 3+0 time scramble.
A Repertoire Built on 1.e4
kareltje2012 has one true opening love: 1.e4. The stats show an unshakeable commitment to the king's pawn, which means everyone else's opening choices become the real story. They have faced the French Defense more than 7,000 times and the Caro-Kann Defense nearly 4,000 times, grinding out wins in both. Against the Sicilian Defense, they happily enter the Najdorf Variation, and when playing Black they are not afraid to sacrifice a pawn in the Benko Gambit. Their longest tenured opening, however, might be the cheeky Blackburne Shilling Gambit, which appears over 3,000 times in their database.
Familiar Foes
No player is an island, especially not in online Blitz. kareltje2012 has built genuine rivalries with a handful of regulars. The most frequent opponent is bajkeee, who has played kareltje2012 in 103 bruising encounters, with kareltje2012 holding 58 wins. APcom is next in line with 77 games, while pacerisimus rounds out the top three with 61 battles. These repeated clashes are the heart of the grind.
Endgame Patience and Comeback Magic
The numbers paint a picture of a player who will not let you win by having a better opening memory. kareltje2012 reaches the endgame in over 80 percent of games and averages nearly 78 moves per win. The comeback rate is a startling 87.8 percent, meaning an early piece loss is often just a dramatic setup. Their best results arrive around 23:00, perhaps when the toughest opponents are asleep and the coffee has finally kicked in.
A Decade of Blitz Marathons
From the early 2,100s in 2018 through the relentless monthly swings of the 2020s, the rating chart tells a story of endurance.
captures every spike and stumble. The opening breakdown also reveals a player who keeps coming back to their favorites. shows where the wins come from, and the answer is everywhere, just in slightly different fonts.