Prepare against Achim Bosma
DEU · World #66,944 classical · FIDE ID 24665428
When preparing against Achim Bosma, expect 1.d4 in 76% of White games. Against 1.e4 the reply is 1...c6 (83% of games); against 1.d4, 1...Nf6 (100%).
Our database contains 62 games by Achim Bosma, covering Apr 2007 to Jul 2026. Below you'll find Achim Bosma's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Achim Bosma before a game. You can open the same data in the free interactive preparation workstation, which builds a move-by-move opening tree from every game.
Ratings
| Time control | Current | Peak | Peak date |
|---|---|---|---|
| Classical | 1,832 | 1,983 | Jan 2009 |
| Blitz | 1,898 | 1,898 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 62 | 29 | 10 | 23 | 46.8% |
| As White | 33 | 19 | 4 | 10 | 57.6% |
| As Black | 29 | 10 | 6 | 13 | 34.5% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Achim Bosma's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Achim Bosma's side.
First moves as White (33 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 25 | 75.8% | 64.0% |
| Nf3 | 3 | 9.1% | 66.7% |
| e4 | 3 | 9.1% | 50.0% |
| c4 | 2 | 6.1% | 75.0% |
Main lines as White
- 1.d4 — 76% of White games, 64.0% score
- …Nf6 (44% of these games) — Bosma usually continues Nf3 (41.7% score)
- …d5 (44% of these games) — Bosma usually continues Nf3 (75.0% score)
- …e6 (8% of these games) — Bosma usually continues Nf3 (100.0% score)
- 1.Nf3 — 9% of White games, 66.7% score
- …Nf6 (100% of these games) — Bosma usually continues d4 (50.0% score)
As Black against 1.e4 (18 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c6 | 15 | 83.3% | 40.0% |
| e6 | 2 | 11.1% | 25.0% |
| e5 | 1 | 5.6% | 0.0% |
As Black against 1.d4 (7 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 7 | 100.0% | 64.3% |
Achim Bosma's chess games
All 62 games by Achim Bosma in the Chess.ceo database (Apr 2007 - Jul 2026) are free to browse, search and replay: filter by opening, opponent, event or date on the player page, or step through any game on the analysis board. Record: 29 wins, 10 draws, 23 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D04 | Colle System | 8 | 4/0/4 | 50.0% |
| A56 | Benoni Defense | 5 | 2/0/3 | 40.0% |
| A25 | Indian Defense | 3 | 1/1/1 | 33.3% |
| D35 | Semi-Slav Defense | 2 | 1/1/0 | 50.0% |
| A15 | English Opening | 1 | 1/0/0 | 100.0% |
| A21 | English Opening: Reverse Sicilian | 1 | 0/1/0 | 0.0% |
| C01 | French: Exchange Variation | 1 | 0/0/1 | 0.0% |
| D80 | Grünfeld Defense | 1 | 1/0/0 | 100.0% |
| D05 | Horwitz Defense | 1 | 1/0/0 | 100.0% |
| E11 | Bogo-Indian Defense | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B14 | Caro-Kann: Exchange Variation | 5 | 1/0/4 | 20.0% |
| B16 | Caro-Kann: Main Line | 3 | 0/0/3 | 0.0% |
| A56 | Benoni Defense | 3 | 2/1/0 | 66.7% |
| B10 | Caro-Kann | 3 | 2/0/1 | 66.7% |
| B12 | Caro-Kann: Advance Variation | 3 | 2/1/0 | 66.7% |
| A22 | English Opening: Reverse Sicilian | 2 | 0/1/1 | 0.0% |
| B11 | Caro-Kann: Two Knights Variation | 1 | 0/1/0 | 0.0% |
| C40 | Elephant Gambit | 1 | 0/0/1 | 0.0% |
| A03 | Bird's opening | 1 | 1/0/0 | 100.0% |
| C07 | French: Tarrasch Variation | 1 | 0/1/0 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Nov 2000 | Peter Friese | 2,049 | ch-Koblenz | D05 |
| Oct 2000 | Horst Fink | 1,968 | ch-Koblenz | A03 |
| Nov 1997 | Bernd Hardt | 1,932 | ch-Koblenz | E92 |
| Aug 2000 | Rolf Graw | 1,675 | ch-Koblenz | D10 |
| Oct 2003 | Johann Decrouppe | 1,635 | ch-Koblenz | E61 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-Koblenz | 2004 | 49 | 29.5 | 1,885 |
| Koblenz Open | 1992 | 4 | 1.5 | – |
| ch08-NED Open Reinbouw | 1977 | 4 | 1.5 | 2,315 |
| 14th Rheinland Pfalz Open | 2024 | 3 | 1.5 | 1,784 |
| 13th Rheinland Pfalz Open | 2023 | 1 | 0 | 1,866 |
| 15th Rheinland-Pfalz Open | 2025 | 1 | 0 | 1,664 |
Interactive opening tree from all 62 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Achim Bosma's chess games?
62 games by Achim Bosma, from Apr 2007 to Jul 2026, are free to browse and replay move by move — no signup needed. The preparation view groups them into an opening tree showing every line Achim Bosma has played.
What does Achim Bosma play on the first move as White?
Across 33 games with White in our database, Achim Bosma opens with 1.d4 (76% of games), 1.Nf3 (9% of games), 1.e4 (9% of games). Against 1.e4 as Black, Achim Bosma answers 1...c6 (83% of games), 1...e6 (11% of games), 1...e5 (6% of games). Against 1.d4: 1...Nf6 (100% of games).
What openings does Achim Bosma play as White?
As White, Achim Bosma's most-played openings in our database are: Colle System (8 games, 50.0% win rate); Benoni Defense (5 games, 40.0% win rate); Indian Defense (3 games, 33.3% win rate). The full breakdown of 33 games with White is in the table above.
What openings does Achim Bosma play as Black?
As Black, Achim Bosma most often plays: Caro-Kann: Exchange Variation (5 games, 20.0% win rate); Caro-Kann: Main Line (3 games, 0.0% win rate); Benoni Defense (3 games, 66.7% win rate). See the table above for the top ten Black openings across 29 games.
What is Achim Bosma's FIDE rating?
Achim Bosma is currently rated 1,832 in classical chess and 1,898 in blitz. Peak classical rating: 1,983 (Jan 2009).
How many games has Achim Bosma played?
Our database contains 62 games by Achim Bosma, covering Apr 2007 to Jul 2026. Overall record: 29 wins, 10 draws, 23 losses (46.8% win rate).
How do I prepare against Achim Bosma?
62 games by Achim Bosma reveal their opening repertoire, most-played lines, and the variations where they score worst — the raw material for targeted preparation. The interactive opening tree lets you walk every line to any depth.