A Name You Can't Pronounce Twice
Nelson M, Ii Lopez, better known online as nelsi, is a National Master with a very serious bullet chess habit. He first appeared on the rated ladder back in 2011, then took a nine year nap and returned in2020 ready to remind everyone that the clock is not a suggestion.
The Bullet Machine
If you look up "bullet chess" in the dictionary, there is a decent chance you will find nelsi's rating graph. He has played nearly 30,000 rated games, and the vast majority of them are bullet. In fact,
tells the story of a player who kept pressing, even after surviving an 18 game losing streak and then once rattling off a 28 game winning streak. He is the kind of player who makes a three minute game feel like a marathon.Openings With Personality
Nelsi is not shy about playing the Scandinavian Defense with Black, and he has turned the Caro-Kann Defense into a personal money maker as White. He also enjoys the Alekhine Defense when the mood strikes, which means he happily invites opponents to chase his knights around tha board. His decisive games tend to rumble deep into the endgame, averaging close to 80 moves, which is either admirable or terrifying in bullet time controls.
Rivalries and Resilience
Every online grinder needs a foil, and for nelsi that foil is Sharvesh Deviprasath. Their head-to-head battles have stretched across almost 60 games, and while the scoreboard favors karatebaby, nelsi keeps coming back for more. His comeback rate is absurdly high, his early resignation rate is tiny, and he has a habit of dragging games into complications when most players would already be reaching for the resign button.
A High Water Mark
Along the way, he has touched 2740 (2026-04-15) in bullet, 2577 (2025-08-18) in blitz, and 2532 (2026-08-02) in rapid. Het best time to play is around nine in the morning, which suggests he likes starting the day by making someone else's rating slightly worse. At his peak, this National Master is exactly the player who makes you wonder why you ever queued up on a Friday night.