Biography
Jonathan Dourérassou, online known as cassoulet, is a titled chess player and a popular streamer who has carved out a distinctive presence in the online chess world. They earned the Grandmaster title from FIDE and have since blended competitive success with a colorful streaming persona that invites players of all levels to share in the fun and the fight on the board.
In blitz and rapid formats, cassoulet has risen through the ranks with an aggressive, resourceful style that thrives on sharp tactics and dynamic play. Their peak blitz rating reached about 2864 in 2020, a milestone that reflects both deep preparation and fearless decision-making under time pressure. Beyond the board, cassoulet engages a growing community of viewers with entertaining commentary, instructive breakdowns, and lively interaction during live streams.
Peak blitz form, a long-running streak of intense games, and a dedication to the game have made cassoulet a recognizable figure for fans and fellow players alike. For a deeper look at their career arc and recent activity, you can explore their profile here: Jonathan Dourérassou.
Chart snapshot of their rating trajectory:
Recent highlights and more personal bios can be found in the profile: Jonathan Dourérassou.
Titles & Presence
- Grandmaster title awarded by FIDE
- Streamer and content creator under the cassoulet brand
- Noted for a long winning streak and strong endurance across time controls
Playing Style & Time Controls
- Preferred time control: Blitz, with substantial success across Bullet, Rapid, and Daily formats
- Playing style blends tactical finesse with resilient endgames; endgames are a particular strength, as shown by a high endgame frequency
- Endgame awareness and comeback potential are frequently highlighted in their games
Fan favorite moments often come from cassoulet's willingness to enter sharp, double-edged positions and to seek imbalances that keep both players on their toes.
Peak Blitz rating: 2864 (2020-05-07)
Openings & Repertoire
cassoulet explores a wide repertoire with a bias toward dynamic, counterattacking ideas. In Blitz and Daily play, they have shown comfort with aggressive setups and practical savings in the opening phase, always aiming to seize initiative early.
Coach's Advice
It's been a while since you played. Play a few more games so we have more positions and decisions to review — then I can provide you with clearer, more actionable advice.
🆚 Opponent Insights
| Recent Opponents | ||
|---|---|---|
| Nigel Short | 1W / 0L / 0D | |
| Most Played Opponents | ||
|---|---|---|
| strike2828 | 80W / 41L / 1D | |
| carlitomontoya3 | 44W / 23L / 0D | |
| juliengreard | 24W / 13L / 0D | |
| Wojtek Sochacki | 15W / 18L / 0D | |
| Evan Ju | 12W / 14L / 1D | |
Rating
| Year | Bullet | Blitz | Rapid | Daily |
|---|---|---|---|---|
| 2025 | 2665 | 2827 | 2101 | |
| 2024 | 2674 | 2833 | ||
| 2023 | 2829 | |||
| 2022 | 2521 | 2718 | 2101 | 2148 |
| 2021 | 2733 | 2705 | 2262 | |
| 2020 | 2746 | 2707 | 2216 | |
| 2018 | 2459 | |||
| 2017 | 2494 | |||
| 2016 | 2271 | 1932 | ||
| 2015 | 2276 | 2148 | ||
| 2014 | 2504 | 2150 | 2019 | 2065 |
| 2013 | 2432 | 2328 | 2055 | |
| 2012 | 1200 | |||
| 2011 | 2221 | 1982 |
Stats by Year
| Year | White | Black | Moves |
|---|---|---|---|
| 2025 | 24W / 16L / 3D | 27W / 17L / 4D | 74.1 |
| 2024 | 88W / 46L / 12D | 79W / 49L / 14D | 89.4 |
| 2023 | 69W / 38L / 8D | 67W / 35L / 11D | 96.2 |
| 2022 | 119W / 50L / 14D | 125W / 56L / 14D | 67.3 |
| 2021 | 170W / 150L / 34D | 165W / 143L / 33D | 82.2 |
| 2020 | 425W / 272L / 64D | 366W / 299L / 84D | 77.7 |
| 2018 | 5W / 3L / 0D | 4W / 3L / 2D | 88.6 |
| 2017 | 12W / 3L / 1D | 7W / 6L / 3D | 92.3 |
| 2016 | 7W / 12L / 0D | 7W / 8L / 4D | 100.9 |
| 2015 | 8W / 3L / 1D | 5W / 5L / 1D | 87.6 |
| 2014 | 30W / 11L / 5D | 19W / 12L / 5D | 80.0 |
| 2013 | 123W / 51L / 16D | 123W / 67L / 6D | 76.7 |
| 2012 | 0W / 0L / 0D | 1W / 0L / 0D | 44.0 |
| 2011 | 66W / 22L / 5D | 61W / 33L / 1D | 69.2 |
Openings: Most Played
| Blitz Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Unknown | 291 | 185 | 105 | 1 | 63.6% |
| Sicilian Defense: Closed | 185 | 102 | 63 | 20 | 55.1% |
| Amazon Attack: Siberian Attack | 125 | 67 | 46 | 12 | 53.6% |
| Modern | 99 | 59 | 34 | 6 | 59.6% |
| Caro-Kann Defense | 82 | 43 | 31 | 8 | 52.4% |
| Scandinavian Defense | 71 | 37 | 25 | 9 | 52.1% |
| Giuoco Piano: Tarrasch Variation | 67 | 34 | 27 | 6 | 50.8% |
| French Defense | 65 | 30 | 26 | 9 | 46.1% |
| Barnes Defense | 65 | 36 | 24 | 5 | 55.4% |
| Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | 63 | 32 | 25 | 6 | 50.8% |
| Bullet Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Czech Defense | 64 | 41 | 21 | 2 | 64.1% |
| Sicilian Defense: Closed | 34 | 21 | 9 | 4 | 61.8% |
| Modern | 25 | 18 | 6 | 1 | 72.0% |
| Amar Gambit | 22 | 18 | 4 | 0 | 81.8% |
| French Defense: Burn Variation | 21 | 11 | 9 | 1 | 52.4% |
| Scandinavian Defense | 17 | 14 | 2 | 1 | 82.3% |
| Barnes Defense | 15 | 9 | 4 | 2 | 60.0% |
| Caro-Kann Defense | 14 | 9 | 4 | 1 | 64.3% |
| Pirc Defense: Classical Variation | 13 | 8 | 4 | 1 | 61.5% |
| King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Rare Line | 13 | 9 | 4 | 0 | 69.2% |
| Rapid Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Sicilian Defense: Taimanov Variation, American Attack | 4 | 1 | 1 | 2 | 25.0% |
| Giuoco Piano: Tarrasch Variation | 4 | 1 | 3 | 0 | 25.0% |
| Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | 2 | 2 | 0 | 0 | 100.0% |
| Gruenfeld: Exchange Variation | 2 | 2 | 0 | 0 | 100.0% |
| Sicilian Defense: Classical Variation | 2 | 0 | 1 | 1 | 0.0% |
| Sicilian Defense: Closed | 2 | 1 | 1 | 0 | 50.0% |
| East Indian Defense | 1 | 1 | 0 | 0 | 100.0% |
| Barnes Defense | 1 | 0 | 1 | 0 | 0.0% |
| English Opening: Agincourt Defense | 1 | 0 | 0 | 1 | 0.0% |
| Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | 1 | 1 | 0 | 0 | 100.0% |
| Daily Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Sicilian Defense: Four Knights Variation, Cobra Variation | 10 | 7 | 2 | 1 | 70.0% |
| Amar Gambit | 8 | 8 | 0 | 0 | 100.0% |
| Sicilian Defense: Najdorf Variation | 6 | 5 | 1 | 0 | 83.3% |
| Barnes Defense | 5 | 5 | 0 | 0 | 100.0% |
| Sicilian Defense: Closed | 5 | 2 | 2 | 1 | 40.0% |
| English Opening: Symmetrical Variation | 4 | 4 | 0 | 0 | 100.0% |
| Sicilian Defense: Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik Line | 4 | 3 | 1 | 0 | 75.0% |
| Sicilian Defense | 4 | 3 | 1 | 0 | 75.0% |
| Döry Defense | 3 | 3 | 0 | 0 | 100.0% |
| Scotch Game | 3 | 3 | 0 | 0 | 100.0% |
🔥 Streaks
| Streak | Longest | Current |
|---|---|---|
| Winning | 23 | 1 |
| Losing | 7 | 0 |