CMChiel Koster
NED · FIDE ID 1047990 · 46 tournament games since 2022
Standard
2226
#235 in NED (active)
Rapid
–
Unrated
Blitz
2015
#419 in NED (active)
Score
54%
17 W · 16 D · 13 L
Opp. avg
2150
Last 46 games
Last game
2025-09-14
Alma Mater University Chess Tournament
Prep summary
- As White: 1.e4 in 64% of games (scores 50%).
- Against 1.e4: 1...c5 in 12 of 13 games (Sicilian Defense), scoring 58%.
- Against 1.d4: 1...Nf6 in 5 of 5 games (Indian Defense), scoring 70%.
- Weak spot: Caro-Kann Defense as White, only 17% in 3 games.
- Comfort zone: Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation as Black, 75% in 4 games.
- By opponent strength: 48% against higher-rated players, 85% against lower-rated.
Based on 46 over-the-board games (13 classical · 11 rapid). 22 with White (52%), 24 with Black (56%).
Openings as White
First move
| 1.e4 | 14 | 50% |
| 1.Nf3 | 4 | 88% |
| 1.c4 | 2 | 50% |
| 1.d4 | 1 | 0% |
Most played
| Opening | Games | Score |
|---|---|---|
| Caro-Kann Defense | 3 | 17% |
| Sicilian Defense: Najdorf Variation, Adams Attack | 2 | 75% |
| Sicilian Defense: Kan Variation, Swiss Cheese Variation | 1 | 100% |
| Neo-Grünfeld Defense: Classical Variation | 1 | 100% |
| English Opening: King's English Variation, Three Knights System | 1 | 50% |
Openings as Black
Against 1.e4 (13 games)
| 1...c5 Sicilian Defense | 12 | 58% |
| 1...e6 French Defense | 1 | 50% |
Against 1.d4 (5 games)
| 1...Nf6 Indian Defense | 5 | 70% |
Most played
| Opening | Games | Score |
|---|---|---|
| Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation | 4 | 75% |
| Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | 2 | 100% |
| English Opening: Symmetrical Variation, Fianchetto Variation | 1 | 0% |
| Queen's Pawn Game: London System, with e6 | 1 | 0% |
| Sicilian Defense: Old Sicilian | 1 | 0% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2025-09-14 | Daniel GH Gallagher (2251) Alma Mater University Chess Tournament | W |
| 2025-09-13 | Jake Wang (1968) Alma Mater University Chess Tournament | W |
| 2025-09-13 | Cagatay Aydogdu (1933) Alma Mater University Chess Tournament | L |
| 2025-09-12 | Felix Jordan (1808) Alma Mater University Chess Tournament | W |
| 2025-09-12 | Christian, Dr. Seel (2477) Alma Mater University Chess Tournament | L |
| 2025-06-08 | Sascha Kurt (2312) 17th BPB Limburg Open 2025 | Open · classical | ½ |
| 2025-06-07 | Pascal Barzen (2348) 17th BPB Limburg Open 2025 | Open · classical | L |
| 2025-05-18 | Noah Ritzerveld (2272) WLC Weekend Tournament 2025 | Group A · classical | ½ |
| 2025-05-18 | Gachatur Kazarjan (2211) WLC Weekend Tournament 2025 | Group A · classical | ½ |
| 2025-05-17 | Tom Vennix (1971) WLC Weekend Tournament 2025 | Group A · classical | 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.