Koustav, Chatterjee
Last game 2026
Rating
peak 2547 · latest 2488Games
454
Wins
200
Draws
150
Losses
104
Peak Elo
2547
60.6% score
As White
| A06 | Zukertort Opening | 10 | 80.0% |
| A11 | English Opening: Caro-Kann Defensive System | 10 | 70.0% |
| D02 | Queen's Pawn Game: London System | 8 | 62.5% |
| A05 | King's Indian Attack: Symmetrical Defense | 6 | 58.3% |
| A07 | King's Indian Attack | 5 | 60.0% |
| B31 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | 5 | 70.0% |
| A13 | English Opening: Agincourt Defense | 5 | 60.0% |
| A14 | English Opening: Agincourt Defense, Neo-Catalan Declined | 5 | 70.0% |
| D35 | Queen's Gambit Declined: Exchange Variation, Positional Variation | 5 | 50.0% |
As Black
| D38 | Queen's Gambit Declined: Ragozin Defense | 11 | 68.2% |
| C54 | Italian Game: Classical Variation, Giuoco Pianissimo | 9 | 50.0% |
| C88 | Ruy Lopez: Closed | 8 | 50.0% |
| C50 | Italian Game: Giuoco Pianissimo, Normal | 7 | 64.3% |
| C84 | Ruy Lopez: Closed, Martinez Variation | 6 | 58.3% |
| E32 | Nimzo-Indian Defense: Classical Variation | 5 | 70.0% |
| D35 | Queen's Gambit Declined: Exchange Variation, Carlsen Variation | 5 | 50.0% |