Players
IM
Koustav Chatterjee
Trophy cabinet
No classical titles on record yet.
Luft classical rating
Not ranked yet: the Luft classical rating needs at least 10 classical games in top events over the last year.
Openings
Their most-played, from 15 classical games in top events over the last 4 years
| Opening | Games | Score |
|---|---|---|
| King's Indian Defense | 2 | 75% |
| Queen's Gambit Declined | 2 | 25% |
| Nimzo-Indian Defense | 1 | 100% |
| King's Indian Attack | 1 | 50% |
| Old Indian Defense | 1 | 50% |
| Opening | Games | Score |
|---|---|---|
| Queen's Gambit Declined | 2 | 50% |
| Italian Game | 1 | 100% |
| Benoni Defense | 1 | 50% |
| Nimzo-Indian Defense | 1 | 50% |
| English Opening | 1 | 0% |
Recent events
| Event | Place | +/− | +/− |
|---|---|---|---|
| 2025 US Masters30 Nov 2025 | 3/6 | +6+6 | |
| 57th International Chess Festival Biel (Open)23 Jul 2024 | 2/5 | −4−4 | |
| Menorca Open 202316 Apr 2023 | 2½/4 | +11+11 |
Best wins
| Opponent | Rating |
|---|---|
| GMA. Fier15 Apr 2023 · Menorca Open 2023 | 2599 |
| GMD. Brodsky28 Nov 2025 · 2025 US Masters | 2515 |
| GMXu Yi15 Apr 2023 · Menorca Open 2023 | 2505 |
Most played
| Opponent | Games | WDL |
|---|---|---|
| GMGukesh D.Last 13 Apr 2023 · Menorca Open 2023 | 1 | 001 |
| GMXu YiLast 15 Apr 2023 · Menorca Open 2023 | 1 | 100 |
| GMA. FierLast 15 Apr 2023 · Menorca Open 2023 | 1 | 100 |
| GMH. NiemannLast 16 Apr 2023 · Menorca Open 2023 | 1 | 010 |
| GMR. JumabayevLast 18 Jul 2024 · 57th International Chess Festival Biel (Open) | 1 | 010 |