Prepare against Jean-Rene Koch
IM · France · World #1,243 classical · FIDE ID 600148
Our database contains 727 games by Jean-Rene Koch, covering Apr 2003 to Jul 2026. Below you'll find Jean-Rene Koch's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Jean-Rene Koch 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 | 2,430 | 2,484 | May 2012 |
| Rapid | 2,434 | 2,438 | May 2025 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 727 | 261 | 289 | 177 | 35.9% |
| As White | 379 | 150 | 141 | 88 | 39.6% |
| As Black | 348 | 111 | 148 | 89 | 31.9% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Jean-Rene Koch's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Jean-Rene Koch's side.
First moves as White (379 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 322 | 85.0% | 58.1% |
| c4 | 44 | 11.6% | 54.5% |
| d4 | 11 | 2.9% | 77.3% |
| Nf3 | 1 | 0.3% | 50.0% |
| g3 | 1 | 0.3% | 50.0% |
Main lines as White
- 1.e4 — 85% of White games, 58.1% score
- …c5 (42% of these games) — Koch usually continues Nf3 (59.1% score)
- …e5 (21% of these games) — Koch usually continues Nf3 (51.7% score)
- …e6 (16% of these games) — Koch usually continues d4 (63.7% score)
- 1.c4 — 12% of White games, 54.5% score
- …e5 (34% of these games) — Koch usually continues g3 (25.0% score)
- …Nf6 (20% of these games) — Koch usually continues Nc3 (62.5% score)
- …e6 (20% of these games) — Koch usually continues Nf3 (60.0% score)
As Black against 1.e4 (149 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 102 | 68.5% | 58.8% |
| e5 | 38 | 25.5% | 47.4% |
| g6 | 4 | 2.7% | 62.5% |
| d6 | 3 | 2.0% | 66.7% |
| d5 | 1 | 0.7% | 100.0% |
As Black against 1.d4 (121 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 76 | 62.8% | 51.3% |
| d5 | 21 | 17.4% | 38.1% |
| f5 | 21 | 17.4% | 50.0% |
| g6 | 3 | 2.5% | 16.7% |
Jean-Rene Koch's chess games
All 727 games by Jean-Rene Koch in the Chess.ceo database (Apr 2003 - 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: 261 wins, 289 draws, 177 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B57 | Sicilian | 73 | 26/30/17 | 35.6% |
| C18 | French: Winawer Variation | 21 | 11/7/3 | 52.4% |
| C89 | Ruy Lopez: Closed | 19 | 7/6/6 | 36.8% |
| B06 | Modern Defense | 16 | 6/7/3 | 37.5% |
| B10 | Caro-Kann | 15 | 6/7/2 | 40.0% |
| A28 | English Opening: Reverse Sicilian | 15 | 2/9/4 | 13.3% |
| B03 | Alekhine Defense | 11 | 10/1/0 | 90.9% |
| B49 | Sicilian: Taimanov | 11 | 5/4/2 | 45.5% |
| A13 | English Opening | 10 | 2/5/3 | 20.0% |
| C00 | King's Indian Attack | 10 | 1/6/3 | 10.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A57 | Benoni Defense | 56 | 20/19/17 | 35.7% |
| B78 | Sicilian: Dragon | 37 | 11/18/8 | 29.7% |
| A87 | Dutch Defense | 32 | 11/11/10 | 34.4% |
| C42 | Petrov's Defense | 32 | 7/16/9 | 21.9% |
| B42 | Sicilian | 20 | 7/11/2 | 35.0% |
| A30 | English Opening: Symmetrical | 17 | 5/7/5 | 29.4% |
| D31 | Queen's Gambit Declined | 15 | 4/5/6 | 26.7% |
| B22 | Sicilian: Alapin | 13 | 5/7/1 | 38.5% |
| B25 | Sicilian: Closed | 12 | 5/4/3 | 41.7% |
| A43 | Indian Defense | 11 | 1/9/1 | 9.1% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jun 2002 | Viktor Bologan | 2,652 | 5th Comtois Masters | C42 |
| Aug 1999 | Joel Lautier | 2,638 | ch-FRA Final stage | B20 |
| Mar 2010 | Pavel V. Tregubov | 2,625 | chT-FRA Top 16 GpB | B33 |
| Jun 2001 | Jean-Marc Degraeve | 2,589 | Clichy-Select GMs | B00 |
| Jan 1993 | Eric Lobron | 2,575 | GER-FRA | A81 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-FRA | 1997 | 131 | 76 | 2,468 |
| chT-FRA | 2001 | 72 | 51 | 2,551 |
| FRA-chT Top 12 | 2019 | 61 | 26.5 | 2,410 |
| ch-EU U21 | 1988 | 26 | 12 | 2,294 |
| chT-FRA Top 16 GpB | 2010 | 26 | 14 | 2,522 |
| chT-FRA Top 16 GpA | 2022 | 18 | 11 | 2,433 |
| Cannes Open | 1993 | 17 | 12 | 2,586 |
| Marseille | 1990 | 15 | 6 | 2,443 |
Frequent opponents
Head-to-head records: Jean-Luc Chabanon (13 games) · Laurent Fressinet (13 games) · Manuel Apicella (13 games) · Eric Prie (13 games) · Jean-Marc Degraeve (12 games) · Arnaud Hauchard (10 games) · Anatoli Vaisser (10 games) · Emmanuel Bricard (10 games)
Interactive opening tree from all 727 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Jean-Rene Koch's chess games?
727 games by Jean-Rene Koch, from Apr 2003 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 Jean-Rene Koch has played.
What does Jean-Rene Koch play on the first move as White?
Across 379 games with White in our database, Jean-Rene Koch opens with 1.e4 (85% of games), 1.c4 (12% of games), 1.d4 (3% of games). Against 1.e4 as Black, Jean-Rene Koch answers 1...c5 (68% of games), 1...e5 (26% of games), 1...g6 (3% of games). Against 1.d4: 1...Nf6 (63% of games), 1...d5 (17% of games), 1...f5 (17% of games).
What openings does Jean-Rene Koch play as White?
As White, Jean-Rene Koch's most-played openings in our database are: Sicilian (73 games, 35.6% win rate); French: Winawer Variation (21 games, 52.4% win rate); Ruy Lopez: Closed (19 games, 36.8% win rate). The full breakdown of 379 games with White is in the table above.
What openings does Jean-Rene Koch play as Black?
As Black, Jean-Rene Koch most often plays: Benoni Defense (56 games, 35.7% win rate); Sicilian: Dragon (37 games, 29.7% win rate); Dutch Defense (32 games, 34.4% win rate). See the table above for the top ten Black openings across 348 games.
What is Jean-Rene Koch's FIDE rating?
Jean-Rene Koch is currently rated 2,430 in classical chess, 2,434 in rapid. Peak classical rating: 2,484 (May 2012).
How many games has Jean-Rene Koch played?
Our database contains 727 games by Jean-Rene Koch, covering Apr 2003 to Jul 2026. Overall record: 261 wins, 289 draws, 177 losses (35.9% win rate).
How do I prepare against Jean-Rene Koch?
727 games by Jean-Rene Koch 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.