Prepare against Leon Kempen
CM · Australia · World #70,367 classical · FIDE ID 3203786
When preparing against Leon Kempen, expect 1.d4 in 62% of White games. Against 1.e4 the reply is 1...e6 (45% of games); against 1.d4, 1...e6 (43%).
Our database contains 184 games by Leon Kempen, covering Oct 2005 to Jul 2026. Below you'll find Leon Kempen's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Leon Kempen 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 | 1,820 | 2,154 | Apr 2006 |
| Rapid | 1,973 | 2,005 | Oct 2012 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 184 | 74 | 54 | 56 | 40.2% |
| As White | 92 | 40 | 26 | 26 | 43.5% |
| As Black | 92 | 34 | 28 | 30 | 37.0% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Leon Kempen's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Leon Kempen's side.
First moves as White (92 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 57 | 62.0% | 56.1% |
| e4 | 30 | 32.6% | 60.0% |
| Nf3 | 5 | 5.4% | 60.0% |
Main lines as White
- 1.d4 — 62% of White games, 56.1% score
- …Nf6 (67% of these games) — Kempen usually continues c4 (53.0% score)
- …d5 (19% of these games) — Kempen usually continues c4 (45.0% score)
- …g6 (5% of these games) — Kempen usually continues c4 (66.7% score)
- 1.e4 — 33% of White games, 60.0% score
- …c5 (50% of these games) — Kempen usually continues Nf3 (46.4% score)
- …e6 (23% of these games) — Kempen usually continues d4 (91.7% score)
- …e5 (10% of these games) — Kempen usually continues Nf3 (83.3% score)
As Black against 1.e4 (38 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 17 | 44.7% | 58.8% |
| Nf6 | 12 | 31.6% | 45.8% |
| d6 | 5 | 13.2% | 80.0% |
| c5 | 2 | 5.3% | 50.0% |
| e5 | 1 | 2.6% | 100.0% |
| c6 | 1 | 2.6% | 100.0% |
As Black against 1.d4 (37 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 16 | 43.2% | 46.9% |
| Nf6 | 16 | 43.2% | 46.9% |
| d6 | 5 | 13.5% | 40.0% |
Leon Kempen's chess games
All 184 games by Leon Kempen in the Chess.ceo database (Oct 2005 - 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: 74 wins, 54 draws, 56 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B50 | Sicilian | 12 | 3/5/4 | 25.0% |
| D85 | Grünfeld Defense | 11 | 3/3/5 | 27.3% |
| D45 | Slav Defense | 7 | 2/0/5 | 28.6% |
| E46 | Nimzo-Indian: Rubinstein System | 6 | 3/1/2 | 50.0% |
| E15 | Queen's Indian Defense | 5 | 3/0/2 | 60.0% |
| A53 | Indian Defense | 5 | 1/3/1 | 20.0% |
| A43 | Benoni Defense | 4 | 4/0/0 | 100.0% |
| A52 | Budapest Defense | 4 | 1/2/1 | 25.0% |
| C03 | French: Tarrasch Variation | 4 | 3/1/0 | 75.0% |
| A40 | Réti Opening | 3 | 2/0/1 | 66.7% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A40 | Horwitz Defense | 11 | 3/5/3 | 27.3% |
| B03 | Alekhine Defense | 11 | 4/3/4 | 36.4% |
| A33 | English Opening | 6 | 1/3/2 | 16.7% |
| C14 | French: Classical Variation | 6 | 2/3/1 | 33.3% |
| A56 | Benoni Defense | 5 | 1/2/2 | 20.0% |
| C08 | French: Tarrasch Variation | 5 | 2/3/0 | 40.0% |
| A03 | Nimzovich-Larsen attack | 4 | 3/1/0 | 75.0% |
| B07 | Pirc Defense | 4 | 3/0/1 | 75.0% |
| A25 | English Opening: Reverse Sicilian | 3 | 1/0/2 | 33.3% |
| C11 | French Defense | 3 | 1/1/1 | 33.3% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Oct 2014 | Slim Bouaziz | 2,321 | 24th Wch Seniors 50 | A57 |
| Nov 2014 | Vasily Borisovich Malinin | 2,280 | 24th Wch Seniors 50 | C11 |
| Jan 2012 | Karma Andhiko Machdoem | 2,129 | Queenstown Open | C08 |
| May 2010 | Mekki Samraoui | 2,126 | 4th Maastricht Limburg Open A | A03 |
| Jul 2015 | Ian P Parsonage | 2,121 | Oceania zt | E46 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Oceania zt | 2019 | 44 | 21 | 1,944 |
| 24th Wch Seniors 50 | 2014 | 11 | 5.5 | 2,284 |
| ch-Box Hill CC | 2005 | 10 | 7 | 1,929 |
| ch-Asia Seniors 50 8th | 2017 | 9 | 5.5 | 2,031 |
| Reykjavik Open | 2016 | 9 | 4 | 1,957 |
| Oceania zt 3.6 | 2017 | 9 | 4.5 | 1,968 |
| Guam Inv | 2012 | 9 | 7 | 2,105 |
| Queenstown Open | 2012 | 9 | 5 | 2,073 |
Interactive opening tree from all 184 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Leon Kempen's chess games?
184 games by Leon Kempen, from Oct 2005 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 Leon Kempen has played.
What does Leon Kempen play on the first move as White?
Across 92 games with White in our database, Leon Kempen opens with 1.d4 (62% of games), 1.e4 (33% of games), 1.Nf3 (5% of games). Against 1.e4 as Black, Leon Kempen answers 1...e6 (45% of games), 1...Nf6 (32% of games), 1...d6 (13% of games). Against 1.d4: 1...e6 (43% of games), 1...Nf6 (43% of games), 1...d6 (14% of games).
What openings does Leon Kempen play as White?
As White, Leon Kempen's most-played openings in our database are: Sicilian (12 games, 25.0% win rate); Grünfeld Defense (11 games, 27.3% win rate); Slav Defense (7 games, 28.6% win rate). The full breakdown of 92 games with White is in the table above.
What openings does Leon Kempen play as Black?
As Black, Leon Kempen most often plays: Horwitz Defense (11 games, 27.3% win rate); Alekhine Defense (11 games, 36.4% win rate); English Opening (6 games, 16.7% win rate). See the table above for the top ten Black openings across 92 games.
What is Leon Kempen's FIDE rating?
Leon Kempen is currently rated 1,820 in classical chess, 1,973 in rapid. Peak classical rating: 2,154 (Apr 2006).
How many games has Leon Kempen played?
Our database contains 184 games by Leon Kempen, covering Oct 2005 to Jul 2026. Overall record: 74 wins, 54 draws, 56 losses (40.2% win rate).
How do I prepare against Leon Kempen?
184 games by Leon Kempen 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.