Teodor-Cosmin Nedelcu, also known as Cocolino31
Teodor-Cosmin Nedelcu, who plays online as Cocolino31, is a FIDE Master with a formidable appetite for fast chess. His specialty is bullet, where board vision, reflexes, and the ability to move before the clock starts questioning your life choices all matter.
A Bullet Chess Specialist
Cocolino31 has recorded more than 13,000 bullet games, with 6,814 wins, 5,488 losses, and 809 draws. His longest winning streak reached an impressive 36 games, suggesting that once the momentum arrives, it may need a formal invitation to leave.
His strongest bullet performances frequently feature the Sicilian Defense and the Slav Defense. The Slav Defense stands out as a particularly reliable choice, producing a win rate above 61% in his bullet database.
Strategic Roots and Tactical Energy
Although bullet is his preferred arena, Nedelcu’s results show considerable experience in blitz and rapid chess as well. His repertoire includes structured openings such as the Slav Defense, the Sicilian Defense: Alapin Variation, the Nimzo-Indian Defense, and several Queen’s Gambit Declined setups.
His games are not purely about frantic flagging. The data points to a strong endgame presence, with endgames appearing frequently across his play. He also demonstrates a notable comeback rate after difficult positions, a useful talent when the clock is running low and every piece appears to have developed its own emergency plan.
Playing Profile
- Title: FIDE Master
- Online username: Cocolino31
- Primary time control: Bullet
- Bullet record: 6,814 wins, 5,488 losses, and 809 draws
- Longest winning streak: 36 games
- Most common checking piece: The queen
- Best recorded playing hour: Around 01:00
Bullet peak marker: 3032 (2026-09-07)
Legacy at the Board
Teodor-Cosmin Nedelcu’s chess identity is built around speed, resilience, and a broad opening repertoire. As Cocolino31, he combines FIDE Master strength with the relentless rhythm of online bullet chess, making him the kind of opponent who can turn a quiet position into a tactical emergency before the spectator has finished saying “good luck.”