Overview
Miroslav Sumper, known online as SumperMikki, is a sharp and entertaining chess player who has carved out a reputation as a Bullet specialist. With thousands of fast games under his belt, he mixes tactical bravado with long, grindy endgames. If you search for "SumperMikki chess Bullet King`s Indian Benoni Sicilian" you will find a player who loves chaos and knows how to turn it into wins.
- Preferred time control: Bullet
- Style: Tactical attacker who enjoys complex middlegames and long endgames
- Notable traits: high endgame frequency and a strong comeback ability
Quick facts and career highlights
Short and searchable facts for fans and profiles.
- Name: Miroslav Sumper (SumperMikki)
- Peak Bullet rating: 2584 (2026-01-21)
- Peak Blitz rating: 2363 (2026-02-25)
- Over 2,400 bullet games and several hundred blitz games across 2026
- Longest winning streak: 11 games. Current winning streak: 8 games.
- Comeback rate: 78.04 percent. Do not count him out early.
Playing style
SumperMikki combines fast intuition with surprising endgame stamina. He often converts chaotic middlegames into long technical wins. His games tend to be decisive and long for Bullet, with an average decisive length around 70 moves. He is also known to tilt occasionally but bounces back with dramatic comebacks.
- Endgame frequency: 80.91 percent
- Average moves per decisive game: about 70
- Early resignation rate: modest, so expect full fights
Openings and repertoire
SumperMikki favors sharp, asymmetrical systems and is comfortable both as White and Black. He has particularly strong results with the King's Indian and several Sicilian lines.
- Favorite defenses: King's Indian Defense, Benoni Defense: Benoni Gambit Accepted, Sicilian Defense: Classical Variation
- Most played white setups include the Colle System variations and the Australian Defense when trying to steer the game into familiar territory
- Notable win rates: solid above 59 percent in certain Sicilian and King`s Indian lines
Notable opponents and sample games
SumperMikki has faced many familiar handles. Below are a few of the most frequently encountered opponents and a short illustrative game snippet you can replay.
- Most played opponent: gustavowillton (34 games)
- Other frequent rivals: x-1509721150, talib101
Tip: this sample shows a typical Sicilian scramble where SumperMikki thrives.
Psychology and habits
He is a roller coaster in human form. A tilt factor of 9 means he can be dramatic, but his comeback statistics make him a thrilling opponent late in the session. Oddly enough, his best time of day to play is early morning, around 04:00, though he also performs well in late evening blitz.
- Best time to catch him: early morning and late evening
- Strong hours: 03:00 shows very high win rate in limited samples
- Rated vs casual difference: tends to perform better in rated games
Fun facts and quirks
Because a chess bio should smile sometimes.
- Average first capture appears around move 6, so the fireworks start early
- He checks with the queen most often, so watch your king
- Favorite phrase after a last-minute win: "One more bullet please"