Who is O_cubano_perigoso?
Raúl Leonardo Lavigne López, better known online as O_cubano_perigoso, plays chess like someone trying to live up to a nickname. The username is Portuguese for "the dangerous Cuban", and his statistics suggest the warning is not idle. He may prefer the steadier pace of Rapid, but he has a Blitz engine that rarely cools down.
His Blitz rating has climbed to a peak of 2691 (2026-08-31), achieved after a stunning amount of online combat. With his first Blitz rating in the sample starting near 1791, the rise to the 2600 range is a story of volume, stubbornness, and plenty of tactical fireworks.
The Rating Rollercoaster
If you look at his Blitz rating history, you will see a player who treats the rating ladder like a playground. There are steep climbs, dramatic drops, and long stretches of pure resilience. A look at the overall curve shows just how active he is:
.In one single month he played nearly 950 Blitz games. That is not casual scrolling; that is a serious competitive habit. He has also crossed 2500 in Bullet and pushed his Rapid rating to 2424, proving that the danger is not confined to one time control.
Opening Repertoire
His opening choices lean toward fighting lines that create imbalance early. As Black, the Alekhine Defense is a constant companion, appearing in hundreds of games and inviting opponents to chase the knight from the very first moves. He also enjoys the solid Caro-Kann Defense, especially in Rapid, where he has converted a strong majority of his games.
When he has the white pieces, the Colle System is a reliable weapon. He often uses it to build a patient attack, and his win rate with the Colle in Blitz is impressive. The Alekhine invitation looks something like this:
.Rivalries and Grind
No player profile is complete without rivals. His most frequent opponent is Chesstrueno, with 87 meetings that have produced a nearly even and highly competitive series: 44 wins, 34 losses, and 9 draws. Other regular adversaries include bonusov and patrikmorskazvezda, but chestrueno remains the measuring stick.
The numbers also reveal a player who never stops fighting. His comeback rate sits near 90.7%, and he still wins nearly half of his games after losing a piece. A 13 game winning streak shows his peak form, while a 12 game losing streak proves he is willing to keep playing through the rough patches.
Fast Facts
- Peak Blitz rating: 2691 (2026-08-31)
- Strength adjusted Rapid win rate: around 62.9%
- Favorite Black opening: Alekhine Defense
- Favorite White setup: Colle System
- Longest winning streak: 13 games
- Longest losing streak: 12 games
- Best day of the week: Thursday
- Best hour to catch him: 08:00