Kosala Sandeepa Chamikara Dharmasri Amarathunge
Competing online as KosalaSandeepa2007, this FIDE Candidate Master is a true product of the online chess era. The username hints at a 2007 birth year, which means much of this chess journey happened at an age when most players are still learning basic endgames. Instead, they became a bullet specialist with thousands of games and a peak bullet rating of 2676.
From Improver to Bullet Machine
Kosala started 2020 with a bullet rating near 900 and climbed steadily through the online ranks. By September 2026 they reached a peak bullet rating of 2676, while also crossing 2601 in blitz and 2206 in rapid. The chart below shows the bullet rating climb that defined their online career.
- 2676 (2026-09-06) peak bullet rating
- 2601 (2026-09-28) peak blitz rating
- 2206 (2026-08-02) peak rapid rating
Style, Openings, and Fighting Spirit
Kosala is not afraid of unusual positions. With the white pieces, they frequently play the Nimzo-Larsen Attack with 1.b3, especially in recent years where it became a signature move. With black, they lean on the French Defense in its many forms, from the Exchange Variation to the Classical Svenonius Variation. They also show affection for the Amar Gambit, an offbeat opening that appears hundreds of times in their bullet history.
The fighting stats are impressive. Kosala has an 82.28 percent comeback rate and still wins 44.65 percent of games after losing a piece. Their longest winning streak is 15 games, and their average wins last around 76 moves, which shows a willingness to grind long endgames.
Rivalries and Head-to-Head Battles
No online chess profile is complete without rivals. Kosala's most frequent opponent is zaynab_love, with 48 games between them. They also have a long series against Dan Shapiro, where they hold a narrow edge, and against Emilio López, who has often gotten the better of the match. These repeated battles show an appetite for tough, competitive bullet play.
Snapshot
- Over 11,400 rated games played
- Nearly 9,900 of those games in bullet
- Longest winning streak: 15
- Longest losing streak: 13
- Best time of day: 01:00, with a 58.82 percent win rate
- Favorite first move in 2026: 1.b3, used more than 2,900 times