Prepare against Koustav Chatterjee
GM · India · World #730 classical · FIDE ID 25073060
When preparing against Koustav Chatterjee, expect 1.d4 in 55% of White games. Against 1.e4 the reply is 1...e5 (95% of games); against 1.d4, 1...Nf6 (88%).
Our database contains 84 games by Koustav Chatterjee, covering Mar 2011 to Sep 2026. Below you'll find Koustav Chatterjee's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Koustav Chatterjee 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 | 2,481 | 2,548 | May 2023 |
| Rapid | 2,396 | 2,396 | Sep 2026 |
| Blitz | 2,431 | 2,435 | Aug 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 84 | 30 | 37 | 17 | 35.7% |
| As White | 44 | 16 | 20 | 8 | 36.4% |
| As Black | 40 | 14 | 17 | 9 | 35.0% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Koustav Chatterjee's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Koustav Chatterjee's side.
First moves as White (44 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 24 | 54.5% | 45.8% |
| Nf3 | 19 | 43.2% | 76.3% |
| e4 | 1 | 2.3% | 50.0% |
Main lines as White
- 1.d4 — 55% of White games, 45.8% score
- …Nf6 (63% of these games) — Chatterjee usually continues c4 (46.7% score)
- …d5 (38% of these games) — Chatterjee usually continues c4 (44.4% score)
- 1.Nf3 — 43% of White games, 76.3% score
- …Nf6 (53% of these games) — Chatterjee usually continues c4 (81.3% score)
- …d5 (42% of these games) — Chatterjee usually continues e3 (80.0% score)
As Black against 1.e4 (19 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 18 | 94.7% | 55.6% |
| Nf6 | 1 | 5.3% | 100.0% |
As Black against 1.d4 (17 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 15 | 88.2% | 56.7% |
| e6 | 1 | 5.9% | 100.0% |
| d5 | 1 | 5.9% | 0.0% |
Koustav Chatterjee's chess games
All 84 games by Koustav Chatterjee in the Chess.ceo database (Mar 2011 - Sep 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: 30 wins, 37 draws, 17 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| E05 | Catalan | 8 | 2/4/2 | 25.0% |
| A06 | Réti Opening | 6 | 4/2/0 | 66.7% |
| E94 | King's Indian Defense: Orthodox Variation | 5 | 2/3/0 | 40.0% |
| A15 | English Opening | 5 | 3/1/1 | 60.0% |
| D30 | Queen's Gambit Declined | 3 | 1/2/0 | 33.3% |
| E60 | Indian Defense | 3 | 1/1/1 | 33.3% |
| D11 | Slav Defense | 2 | 1/0/1 | 50.0% |
| A06 | English Opening: Slav Setup | 2 | 1/1/0 | 50.0% |
| E47 | Nimzo-Indian: Rubinstein System | 2 | 0/0/2 | 0.0% |
| A07 | Réti Opening: Keres Variation | 2 | 0/2/0 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D35 | Indian Defense | 8 | 4/1/3 | 50.0% |
| C88 | Ruy Lopez: Closed | 6 | 1/4/1 | 16.7% |
| C50 | Italian Game | 5 | 2/2/1 | 40.0% |
| D38 | Queen's Gambit Declined: Ragozin Defense | 4 | 2/1/1 | 50.0% |
| E05 | Catalan | 2 | 0/1/1 | 0.0% |
| A13 | English Opening: Neo-Catalan | 2 | 0/1/1 | 0.0% |
| A06 | Nimzo-Larsen Attack | 1 | 1/0/0 | 100.0% |
| D02 | Queen's Pawn Game | 1 | 0/1/0 | 0.0% |
| A07 | Réti Opening | 1 | 0/1/0 | 0.0% |
| C64 | Ruy Lopez: Classical | 1 | 0/1/0 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Nov 2025 | David Brodsky | 2,515 | US Chess Masters 2025 | C50 |
| Dec 2025 | Simon Lamaze | 2,466 | 35th North American Open | E94 |
| Oct 2025 | Oleksii Bilych | 2,446 | Texas Collegiate Finals | D30 |
| Oct 2025 | Anthony Atanasov | 2,435 | Texas Norm Super Swiss | D04 |
| Aug 2026 | Meruert Kamalidenova | 2,400 | FIDE World Uni Teams KO | C52 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Texas Norm Super Swiss | 2025 | 9 | 5.5 | 2,458 |
| Pan-Am Intercollegiate | 2026 | 9 | 5.5 | 2,352 |
| NY Marshall Winter GM B | 2026 | 9 | 5 | 2,418 |
| 35th North American Open | 2025 | 8 | 5.5 | 2,541 |
| US Chess Masters 2025 | 2025 | 8 | 5 | 2,560 |
| 2026 Labor Day Norm Invitational | GM B | 2026 | 8 | 3.5 | 2,345 |
| FIDE World Uni Teams KO | 2026 | 7 | 2.5 | 2,298 |
| FIDE World University Team Chess Championship 2026 | Online Qualifier 1 | 2026 | 6 | 4.5 | 2,405 |
Interactive opening tree from all 84 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Koustav Chatterjee's chess games?
84 games by Koustav Chatterjee, from Mar 2011 to Sep 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 Koustav Chatterjee has played.
What does Koustav Chatterjee play on the first move as White?
Across 44 games with White in our database, Koustav Chatterjee opens with 1.d4 (55% of games), 1.Nf3 (43% of games), 1.e4 (2% of games). Against 1.e4 as Black, Koustav Chatterjee answers 1...e5 (95% of games), 1...Nf6 (5% of games). Against 1.d4: 1...Nf6 (88% of games), 1...e6 (6% of games), 1...d5 (6% of games).
What openings does Koustav Chatterjee play as White?
As White, Koustav Chatterjee's most-played openings in our database are: Catalan (8 games, 25.0% win rate); Réti Opening (6 games, 66.7% win rate); King's Indian Defense: Orthodox Variation (5 games, 40.0% win rate). The full breakdown of 44 games with White is in the table above.
What openings does Koustav Chatterjee play as Black?
As Black, Koustav Chatterjee most often plays: Indian Defense (8 games, 50.0% win rate); Ruy Lopez: Closed (6 games, 16.7% win rate); Italian Game (5 games, 40.0% win rate). See the table above for the top ten Black openings across 40 games.
What is Koustav Chatterjee's FIDE rating?
Koustav Chatterjee is currently rated 2,481 in classical chess, 2,396 in rapid and 2,431 in blitz. Peak classical rating: 2,548 (May 2023).
How many games has Koustav Chatterjee played?
Our database contains 84 games by Koustav Chatterjee, covering Mar 2011 to Sep 2026. Overall record: 30 wins, 37 draws, 17 losses (35.7% win rate).
How do I prepare against Koustav Chatterjee?
84 games by Koustav Chatterjee 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.