Prepare against Jan Boer
NLD · World #94,265 classical · FIDE ID 1017241
When preparing against Jan Boer, expect 1.d4 in 93% of White games. Against 1.e4 the reply is 1...c5 (67% of games); against 1.d4, 1...Nf6 (50%).
Our database contains 121 games by Jan Boer, covering May 2011 to Jul 2026. Below you'll find Jan Boer's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Jan 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 | 1,746 | 1,788 | Sep 2024 |
| Blitz | 1,830 | 1,830 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 121 | 43 | 17 | 61 | 35.5% |
| As White | 61 | 23 | 9 | 29 | 37.7% |
| As Black | 60 | 20 | 8 | 32 | 33.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Jan Boer's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Jan Boer's side.
First moves as White (61 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 57 | 93.4% | 44.7% |
| e4 | 2 | 3.3% | 50.0% |
| c4 | 1 | 1.6% | 100.0% |
| b3 | 1 | 1.6% | 0.0% |
Main lines as White
- 1.d4 — 93% of White games, 44.7% score
- …Nf6 (56% of these games) — Boer usually continues c4 (45.3% score)
- …d5 (28% of these games) — Boer usually continues c4 (43.8% score)
- …f5 (5% of these games) — Boer usually continues c4 (25.0% score)
- 1.e4 — 3% of White games, 50.0% score
- …e6 (50% of these games) — Boer usually continues d4 (100.0% score)
- …c5 (50% of these games) — Boer usually continues Nf3 (0.0% score)
As Black against 1.e4 (33 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 22 | 66.7% | 34.1% |
| d6 | 5 | 15.2% | 40.0% |
| e5 | 3 | 9.1% | 33.3% |
| c6 | 2 | 6.1% | 50.0% |
As Black against 1.d4 (18 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 9 | 50.0% | 27.8% |
| d5 | 7 | 38.9% | 57.1% |
| g6 | 2 | 11.1% | 50.0% |
Jan Boer's chess games
All 121 games by Jan Boer in the Chess.ceo database (May 2011 - 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: 43 wins, 17 draws, 61 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A57 | Benoni Defense | 8 | 3/1/4 | 37.5% |
| D37 | Indian Defense | 6 | 3/1/2 | 50.0% |
| D43 | Semi-Slav Defense | 5 | 1/0/4 | 20.0% |
| D06 | Queen's Gambit | 5 | 5/0/0 | 100.0% |
| E15 | Queen's Indian Defense | 4 | 1/1/2 | 25.0% |
| D82 | Grünfeld Defense | 4 | 0/1/3 | 0.0% |
| A52 | Budapest Defense | 3 | 1/1/1 | 33.3% |
| E77 | King's Indian Defense: Averbakh System | 3 | 1/1/1 | 33.3% |
| A82 | Dutch Defense | 3 | 0/1/2 | 0.0% |
| D11 | Slav Defense | 3 | 1/0/2 | 33.3% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B25 | Sicilian: Closed | 7 | 2/1/4 | 28.6% |
| B45 | Sicilian: Four Knights | 7 | 1/1/5 | 14.3% |
| D11 | Slav Defense | 6 | 3/1/2 | 50.0% |
| B07 | Pirc Defense | 5 | 2/0/3 | 40.0% |
| A46 | Indian Defense | 4 | 1/0/3 | 25.0% |
| B58 | Sicilian: Najdorf | 3 | 0/0/3 | 0.0% |
| A56 | Benoni Defense | 3 | 2/1/0 | 66.7% |
| C89 | Ruy Lopez: Closed | 3 | 1/0/2 | 33.3% |
| B20 | Sicilian | 2 | 1/1/0 | 50.0% |
| A07 | Réti Opening | 2 | 0/1/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jul 1998 | Josef Horak | 2,360 | 9th IBCA Wch blind | B07 |
| Sep 2003 | Michael Knafo | 2,152 | 3rd IBCA ch-EU Blind | D66 |
| Nov 2004 | Franc Mlacnik | 2,132 | 12th IBCA Olympiad Blind | E97 |
| Nov 2004 | Allan Larsen | 2,121 | 12th IBCA Olympiad Blind | B15 |
| Aug 2010 | Marcus Berggren | 1,937 | 12th IBCA Wch Blind | B23 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| 12th IBCA Wch Blind | 2010 | 9 | 3.5 | 1,934 |
| 3rd IBCA ch-EU Blind | 2003 | 9 | 3.5 | 2,021 |
| 13th IBCA Wch Blind | 2014 | 9 | 4 | 1,818 |
| 4th IBCA ch-EU blind | 2007 | 9 | 3 | 1,935 |
| 2nd IBCA ch-EU blind | 1999 | 9 | 3 | 1,901 |
| 5th IBCA ch-EU blind | 2011 | 9 | 4.5 | 1,962 |
| 9th IBCA Wch blind | 1998 | 9 | 2.5 | 2,089 |
| 12th IBCA Olympiad Blind | 2004 | 7 | 2.5 | 2,104 |
Interactive opening tree from all 121 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Jan Boer's chess games?
121 games by Jan Boer, from May 2011 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 Jan Boer has played.
What does Jan Boer play on the first move as White?
Across 61 games with White in our database, Jan Boer opens with 1.d4 (93% of games), 1.e4 (3% of games), 1.c4 (2% of games). Against 1.e4 as Black, Jan Boer answers 1...c5 (67% of games), 1...d6 (15% of games), 1...e5 (9% of games). Against 1.d4: 1...Nf6 (50% of games), 1...d5 (39% of games), 1...g6 (11% of games).
What openings does Jan Boer play as White?
As White, Jan Boer's most-played openings in our database are: Benoni Defense (8 games, 37.5% win rate); Indian Defense (6 games, 50.0% win rate); Semi-Slav Defense (5 games, 20.0% win rate). The full breakdown of 61 games with White is in the table above.
What openings does Jan Boer play as Black?
As Black, Jan Boer most often plays: Sicilian: Closed (7 games, 28.6% win rate); Sicilian: Four Knights (7 games, 14.3% win rate); Slav Defense (6 games, 50.0% win rate). See the table above for the top ten Black openings across 60 games.
What is Jan Boer's FIDE rating?
Jan Boer is currently rated 1,746 in classical chess and 1,830 in blitz. Peak classical rating: 1,788 (Sep 2024).
How many games has Jan Boer played?
Our database contains 121 games by Jan Boer, covering May 2011 to Jul 2026. Overall record: 43 wins, 17 draws, 61 losses (35.5% win rate).
How do I prepare against Jan Boer?
121 games by Jan 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.