Bert Sieber
GER · FIDE ID 16265971 · 54 tournament games since 2024
Standard
2159
#1165 in GER (active)
Rapid
–
Unrated
Blitz
1953
#2541 in GER (active)
Score
58%
28 W · 7 D · 19 L
Opp. avg
2061
Last 50 games
Last game
2026-08-09
5. Kurt Pape-Open | A-Open
Prep summary
- As White: 1.d4 in 100% of games (scores 58%).
- Against 1.e4: 1...c5 in 16 of 16 games (Sicilian Defense), scoring 66%.
- Against 1.d4: 1...d5 in 10 of 10 games (Queen's Pawn Game), scoring 50%.
- Weak spot: Nimzo-Indian Defense: Normal Variation, Classical Defense as White, only 0% in 3 games.
- Comfort zone: Queen's Gambit Declined: Exchange Variation, Positional Variation as White, 100% in 3 games.
- By opponent strength: 40% against higher-rated players, 78% against lower-rated.
Based on 54 over-the-board games (1 classical). 26 with White (58%), 28 with Black (59%).
Openings as White
First move
| 1.d4 | 26 | 58% |
Most played
| Opening | Games | Score |
|---|---|---|
| Nimzo-Indian Defense: Normal Variation, Classical Defense | 3 | 0% |
| Queen's Gambit Declined: Exchange Variation, Positional Variation | 3 | 100% |
| English Defense | 2 | 0% |
| Nimzo-Indian Defense: Normal Variation | 2 | 100% |
| Nimzo-Indian Defense: Rubinstein System | 2 | 50% |
Openings as Black
Against 1.e4 (16 games)
| 1...c5 Sicilian Defense | 16 | 66% |
Against 1.d4 (10 games)
| 1...d5 Queen's Pawn Game | 10 | 50% |
Most played
| Opening | Games | Score |
|---|---|---|
| Sicilian Defense: Kan Variation, Polugaevsky Variation | 6 | 42% |
| Queen's Gambit Declined | 3 | 33% |
| Queen's Gambit Declined: Queen's Knight Variation | 2 | 50% |
| Sicilian Defense: McDonnell Attack | 1 | 100% |
| Sicilian Defense: Closed | 1 | 100% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2026-08-09 | Felix-Hagen Jacobi (2056) 5. Kurt Pape-Open | A-Open | W |
| 2026-08-09 | Matthias Tonndorf (2229) 5. Kurt Pape-Open | A-Open | L |
| 2026-08-08 | Juergen de Voogt (2254) 5. Kurt Pape-Open | A-Open | W |
| 2026-08-08 | Bernd Laubsch (2156) 5. Kurt Pape-Open | A-Open | ½ |
| 2026-08-07 | Daniel Tietje (1943) 5. Kurt Pape-Open | A-Open | W |
| 2026-08-07 | Maximilian Juergenpott (1867) 5. Kurt Pape-Open | A-Open | W |
| 2026-08-06 | Rita Nizamova (1895) 5. Kurt Pape-Open | A-Open | ½ |
| 2026-04-02 | Dominik Horvath (2541) Grenke Chess Festival 2026 | Grenke Open A · classical | L |
| 2026-01-05 | Jarno Scheffner (2010) Landesmeisterschaften 2026 des NSV - Meisterturnier | L |
| 2026-01-04 | Marvin Kieselbach (1936) Landesmeisterschaften 2026 des NSV - Meisterturnier | W |
Data: FIDE rating list (October 2026 list; national ranks count active players) and tournament games broadcast on Lichess since 2020 (open data, CC0). Results are matched to FIDE players by name or FIDE ID and may be incomplete. This page shows public chess results only. Is this you and you want the page removed? Email chessmoose1@gmail.com and we remove it.