CMJean-Fabien Decosse
FRA · FIDE ID 622583 · 15 tournament games since 2022
Standard
2123
#707 in FRA (active)
Rapid
2250
#232 in FRA (active)
Blitz
2111
#409 in FRA (active)
Score
50%
6 W · 3 D · 6 L
Opp. avg
2162
Last 15 games
Last game
2026-03-29
Reykjavik Open 2026
Prep summary
- As White: 1.d4 in 100% of games (scores 67%).
- Against 1.e4: 1...d6 in 6 of 6 games (Pirc Defense), scoring 58%.
- Weak spot: Philidor Defense: Lion Variation as Black, only 33% in 3 games.
- Comfort zone: Pirc Defense as Black, 83% in 3 games.
- By opponent strength: 25% against higher-rated players, 79% against lower-rated.
- By colour: 67% with White, 39% with Black.
Based on 15 over-the-board games (2 classical). 6 with White (67%), 9 with Black (39%).
Openings as White
First move
| 1.d4 | 6 | 67% |
Most played
| Opening | Games | Score |
|---|---|---|
| Nimzo-Indian Defense: Reshevsky Variation | 1 | 100% |
| Indian Defense: Normal Variation | 1 | 0% |
| Wade Defense | 1 | 100% |
| Slav Defense: Quiet Variation, Schallopp Defense | 1 | 0% |
| Semi-Slav Defense: Normal Variation | 1 | 100% |
Openings as Black
Against 1.e4 (6 games)
| 1...d6 Pirc Defense | 6 | 58% |
Against 1.d4 (1 game)
| 1...Nf6 Indian Defense | 1 | 0% |
Most played
| Opening | Games | Score |
|---|---|---|
| Pirc Defense | 3 | 83% |
| Philidor Defense: Lion Variation | 3 | 33% |
| Nimzo-Larsen Attack | 1 | 0% |
| Indian Defense: Wade-Tartakower Defense | 1 | 0% |
| Bogo-Indian Defense: Grünfeld Variation | 1 | 0% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2026-03-29 | Hannah Sayce (1889) Reykjavik Open 2026 · classical | W |
| 2026-03-25 | Leon Livaic (2571) Reykjavik Open 2026 · classical | L |
| 2022-12-18 | Johanna Bjorg Johannsdottir (1916) European Rapid Championship 2022 | W |
| 2022-12-18 | Alexander Huzman (2470) European Rapid Championship 2022 | L |
| 2022-12-17 | Valentin Dragnev (2444) European Rapid Championship 2022 | W |
| 2022-12-16 | Iwo Karolczuk (2357) European Blitz Championship 2022 | ½ |
| 2022-12-16 | Iwo Karolczuk (2357) European Blitz Championship 2022 | L |
| 2022-04-11 | Vignesh Anand (1829) Reykjavik Open 2022 | L |
| 2022-04-10 | Geoff R Hermes (1837) Reykjavik Open 2022 | W |
| 2022-04-10 | Harry Z Zheng (1873) Reykjavik Open 2022 | ½ |
Data: FIDE rating list (October 2026 list; national ranks count active players) and tournament games broadcast on Lichess since 2020 (open data, CC0). Results are matched to FIDE players by name or FIDE ID and may be incomplete. This page shows public chess results only. Is this you and you want the page removed? Email chessmoose1@gmail.com and we remove it.