Prepare against Bas De Boer
CM · NLD · World #8,717 classical · FIDE ID 1050729
Our database contains 321 games by Bas De Boer, covering Feb 2015 to Jul 2026. Below you'll find Bas De Boer's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Bas De Boer 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 | 2,191 | 2,229 | Feb 2024 |
| Rapid | 2,110 | 2,132 | Mar 2025 |
| Blitz | 2,071 | 2,171 | Jan 2023 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 321 | 95 | 97 | 129 | 29.6% |
| As White | 165 | 57 | 47 | 61 | 34.5% |
| As Black | 156 | 38 | 50 | 68 | 24.4% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Bas De Boer's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Bas De Boer's side.
First moves as White (165 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 119 | 72.1% | 48.3% |
| Nf3 | 44 | 26.7% | 48.9% |
| c4 | 2 | 1.2% | 75.0% |
Main lines as White
- 1.d4 — 72% of White games, 48.3% score
- …Nf6 (61% of these games) — Boer usually continues c4 (43.0% score)
- …d5 (24% of these games) — Boer usually continues c4 (62.1% score)
- …e6 (8% of these games) — Boer usually continues c4 (50.0% score)
- 1.Nf3 — 27% of White games, 48.9% score
- …Nf6 (45% of these games) — Boer usually continues c4 (42.1% score)
- …d5 (32% of these games) — Boer usually continues e3 (50.0% score)
- …g6 (7% of these games) — Boer usually continues e4 (50.0% score)
As Black against 1.e4 (73 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 61 | 83.6% | 39.3% |
| e5 | 12 | 16.4% | 50.0% |
As Black against 1.d4 (53 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 38 | 71.7% | 38.2% |
| Nf6 | 15 | 28.3% | 60.0% |
Bas De Boer's chess games
All 321 games by Bas De Boer in the Chess.ceo database (Feb 2015 - 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: 95 wins, 97 draws, 129 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A17 | English Opening | 17 | 5/5/7 | 29.4% |
| D46 | Slav Defense | 14 | 5/3/6 | 35.7% |
| E32 | Nimzo-Indian: Classical Variation | 14 | 4/3/7 | 28.6% |
| D37 | Indian Defense | 13 | 6/5/2 | 46.2% |
| E05 | Catalan | 12 | 6/4/2 | 50.0% |
| A57 | Benoni Defense | 12 | 2/3/7 | 16.7% |
| A07 | Réti Opening | 11 | 5/2/4 | 45.5% |
| E63 | King's Indian Defense | 11 | 5/0/6 | 45.5% |
| D30 | Queen's Gambit Declined | 10 | 3/5/2 | 30.0% |
| E92 | King's Indian Defense: Orthodox Variation | 7 | 0/4/3 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B22 | Sicilian | 20 | 4/7/9 | 20.0% |
| D11 | Slav Defense | 16 | 0/7/9 | 0.0% |
| B48 | Sicilian: Taimanov | 14 | 3/4/7 | 21.4% |
| A08 | Réti Opening | 12 | 3/2/7 | 25.0% |
| B13 | London System | 9 | 4/4/1 | 44.4% |
| B90 | Sicilian: Najdorf | 9 | 4/3/2 | 44.4% |
| C42 | Petrov's Defense | 7 | 3/2/2 | 42.9% |
| A11 | English Opening: Slav Setup | 7 | 0/1/6 | 0.0% |
| B22 | Sicilian: Alapin | 6 | 1/2/3 | 16.7% |
| B23 | Sicilian: Closed | 6 | 3/0/3 | 50.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| May 2019 | Nico Zwirs | 2,386 | Groninger Combinatie Open | D27 |
| Oct 2025 | Zyon Kollen | 2,379 | TCh-BEL 2025-26 | B61 |
| Dec 2023 | Tymon Czernek | 2,324 | 51st Rilton Cup | E52 |
| Nov 2023 | Bernd Rosen | 2,314 | Oberliga NRW 2324 | A56 |
| Jul 2021 | Vladimir Klasan | 2,297 | Belgrade Serbia Open | D76 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Dieren Open | 2022 | 22 | 7 | 2,077 |
| Hilversum Open | 2023 | 13 | 3.5 | 1,987 |
| Titled Tuesday | 2023 | 11 | 1.5 | 1,915 |
| ch-NED U18/20 | 2017 | 9 | 4.5 | 1,936 |
| 20th Hoogeveen Unive Open | 2016 | 9 | 3.5 | 1,962 |
| Dortmund Helmut Kohl | 2018 | 9 | 5 | 2,103 |
| 33rd Krakow Open A | 2023 | 9 | 3.5 | 2,186 |
| 56th Groningen Open | 2018 | 9 | 2.5 | 1,944 |
Interactive opening tree from all 321 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Bas De Boer's chess games?
321 games by Bas De Boer, from Feb 2015 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 Bas De Boer has played.
What does Bas De Boer play on the first move as White?
Across 165 games with White in our database, Bas De Boer opens with 1.d4 (72% of games), 1.Nf3 (27% of games), 1.c4 (1% of games). Against 1.e4 as Black, Bas De Boer answers 1...c5 (84% of games), 1...e5 (16% of games). Against 1.d4: 1...d5 (72% of games), 1...Nf6 (28% of games).
What openings does Bas De Boer play as White?
As White, Bas De Boer's most-played openings in our database are: English Opening (17 games, 29.4% win rate); Slav Defense (14 games, 35.7% win rate); Nimzo-Indian: Classical Variation (14 games, 28.6% win rate). The full breakdown of 165 games with White is in the table above.
What openings does Bas De Boer play as Black?
As Black, Bas De Boer most often plays: Sicilian (20 games, 20.0% win rate); Slav Defense (16 games, 0.0% win rate); Sicilian: Taimanov (14 games, 21.4% win rate). See the table above for the top ten Black openings across 156 games.
What is Bas De Boer's FIDE rating?
Bas De Boer is currently rated 2,191 in classical chess, 2,110 in rapid and 2,071 in blitz. Peak classical rating: 2,229 (Feb 2024).
How many games has Bas De Boer played?
Our database contains 321 games by Bas De Boer, covering Feb 2015 to Jul 2026. Overall record: 95 wins, 97 draws, 129 losses (29.6% win rate).
How do I prepare against Bas De Boer?
321 games by Bas De Boer 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.