Dávid Haszon De FM

A One-Man Blitz Marathon

Dávid Haszon De, known online as Kombinator01, is a FIDE Master who treats the 64 squares like a playground and the clock like a dare. Since his first recorded online games in July 2018, when his Blitz rating sat at 1338, he has played more than 17,000 rated games and won over 9,200 of them. By 2026 he reached a Blitz peak of 2701 (2026-09-01) and a Bullet peak of 2869 (2025-06-17), numbers that most players only see from the spectator seat.

The Grind and the Glory

Kombinator01's path was not a smooth autobahn. It included a 32-game winning streak, a punishing 18-game losing streak, and countless comebacks. His comeback rate is 88.3 percent, and even after losing a piece he still wins over 52 percent of the time. That combination of stubbornness and tactical vigilance is exactly why his username fits.

• Blitz record: 5,446 wins, 3,915 losses, 972 draws
• Bullet record: 3,438 wins, 2,304 losses, 454 draws
• Rapid record: 266 wins, 110 losses, 35 draws
• Daily record: 63 wins, 68 losses, 3 draws

An Opening Laboratory

If you want to understand Haszon De's chess personality, look at his openings. He has played the Amazon Attack more than 500 times in Blitz, with a 58.37 percent win rate, and he pairs it with the reliable Caro-Kann Defense and the Petrov's Defense as Black. He also shows love to the Sicilian Defense and a bag of surprises like the Amar Gambit. He is not here to play quiet draws; he is here to create chaos and then solve it faster than his opponent.

Rivalries and Recurring Faces

No one plays over 17,000 games without making a few friends and enemies. His most frequent dance partner is Peter Lizak, with 39 meetings and a slight edge for alleyooper. Rinat Jumabayev has also caused trouble, leading their 30-game series 17 to 11. On the bright side, Haszon De has been a nightmare for bucimaci33 with a 28-3-5 record, and for frediharcos with 28 wins in 38 meetings, showing that when he finds a matchup he likes, he really likes it.

The Night Owl's Mind

Haszon De's best time of day to play is 02:00, and he wins nearly 60 percent of his games at that hour. His favorite day is Friday, with a 56.15 percent win rate. He reaches the endgame in about 77 percent of his games, averages over 80 moves per win, and makes his first capture around move six. He also delivers the first check 52.12 percent of the time, and when he does, his win rate climbs to 61.7 percent.

This is a player who treats every Blitz game as a puzzle and every opponent as a test case. Dávid Haszon De may have earned the FIDE Master title, but his online legacy is that of a tireless, endlessly curious chess fighter. He simply refuses to stop playing, and that is exactly why his story keeps getting better.