Koustav Chatterjee Chess Games | Chess Player Information

Koustav Chatterjee - Chess Player Overview

Last update: 06/02/2023 11:20:46 GMT+2

Player's activity: ON

Player's name: Koustav Chatterjee (IND) IND

Player's photo: (Search in Google Images)

Age: 20 years old (born in 2003)

Sex: ♂

2520
Standard

2396
Rapid

2432
Blitz

Fide ID: 25073060 (FIDE card)

Highest FIDE Elo achieved: 2520

Koustav Chatterjee Chess Games: 499

Koustav Chatterjee - Charts

FIDE Elo

Activity chart (Standard games)

Koustav Chatterjee - Chess Tournaments

Date	Chess tournament name	Initial ranking	Final ranking	Performance
2022-12-22 to 2023-01-03	MPL 59th Senior National Chess Championship - 2022	8	7 [+1]	2545
2022-12-02 to 2022-12-02	Event B: All India Open Blitz Tournament	1	156 [-155]	0
2022-11-03 to 2022-11-03	Asian Continental Blitz Chess Championship-2022	30	18 [+12]	2544
2022-10-26 to 2022-11-03	Asian Continental Chess Championship-2022	24	15 [+9]	2603
2022-09-19 to 2022-09-28	Chhattisgarh Chief Minister Trophy International Grand Master Chess Tournament-2022, Raipur - Masters (297977)	7	73 [-66]	2334
2022-09-05 to 2022-09-11	17th IGB Dato' Arthur Tan Malaysian Open Chess Championship 2022	1	69 [-68]	0
2022-08-04 to 2022-08-05	OLYMPIAD CELEBRATION INTERNATIONAL FIDE RAPID RATING CHESS TOURNAMENT 2022 4th to 5th August 2022 at Dhanalakshmi College of Engineering,Mamallapuram	13	1 [+12]	2166
2022-06-28 to 2022-07-06	SERBIA OPEN 2022 - MASTERS	37	22 [+15]	2532
2022-04-30 to 2022-05-01	2nd SBDS Open Rapid Chess Tmt-2022 @ National Library, Kolkata	4	4 [0]	1770
2022-07-08 to 2022-07-16	International Tournament "Paracin 2022" - OPEN A July 8th - 16th	12	14 [-2]	2498
2022-07-17 to 2022-07-23	SVETOZAR GLIGORIC MEMORIAL MASTERS SECTION	9	2 [+7]	2666
2022-02-25 to 2022-03-03	MPL 58th National Senior Chess Championship 2022 - Feb. 25 to March 03 @ Kanpur	26	6 [+20]	2551
2021-12-17 to 2021-12-18	3rd SDDM Cup All Bengal Open Rapid Chess Tmt-2021 @ Surrer Math, South Dumdum	4	3 [+1]	1694
2021-11-18 to 2021-11-18	Tata Steel Chess Festival Blitz Chess [email protected]	5	7 [-2]	2327
2021-11-19 to 2021-11-21	Tata Steel Chess Festival Rapid Rating Chess [email protected] /Aicf Event Code :271592/WB(R)/2021	4	2 [+2]	1839
2021-10-19 to 2021-10-27	Sheikh Russel International Grandmasters Chess Tournament 2021	33	10 [+23]	2597
2021-10-10 to 2021-10-18	Year Long 2nd GM Chess Tournament 2021	5	2 [+3]	2444
2021-09-29 to 2021-10-08	Year Long 1st IM Chess Tournament-2021	7	1 [+6]	2541
2021-09-19 to 2021-09-27	Joytu Sheikh Hasina International Grandmasters Chess Tournament 2021	11	12 [-1]	2423
2021-08-18 to 2021-08-26	Ciutat de Barcelona 2021 Grupo A 260992	22	130 [-108]	0
2021-06-10 to 2021-06-12	AICF National Under 18 Open Chess Championship 2021 : (Provisional Standings) Final Standings will be uploaded after Fairplay Screening	5	9 [-4]	2225
2021-04-03 to 2021-04-03	Capablanca Chess School 5th Anniversary Online Blitz Open on Saturday 3rd April; Total Prize fund: ₹40000; For more details, click on Homepage of Organizer	15	15 [0]	2329
2021-03-21 to 2021-03-21	Yugam 2021 - International Open Online Blitz Chess Tournament; Cash Prizes : Rs. 1,00,000/-	26	35 [-9]	2191
2021-03-19 to 2021-03-29	Mujib Borso SAIF POWERTEC Premier Division Chess League-2020	25	8 [+17]	2405
2021-01-26 to 2021-01-27	All Bengal Open Rapid Chess Tmt_2021 @ Sonarpur Utsav( On 26th & 27th)	3	4 [-1]	1751
2020-12-06 to 2020-12-07	Super Juniors Cup by ChessBase India Foundation - Eliminator Round	22	28 [-6]	1677
2020-07-26 to 2020-07-26	Sundays with Unity : Weekly International Open Online Blitz Tournament ( 26 th July )	127	127 [0]	0
2020-07-19 to 2020-07-19	Sundays with Unity : Weekly International Open Online Blitz Tournament ( 19th July )	130	130 [0]	0
2020-07-12 to 2020-07-12	Sundays with Unity : Weekly International Open Online Blitz Tournament ( 12th July )	163	163 [0]	0
2020-07-05 to 2020-07-05	Sundays with Unity : Weekly International Open Online Blitz Tournament ( 5th July )	136	136 [0]	0
2020-06-28 to 2020-06-28	Sundays with Unity : Weekly International Open Online Blitz Tournament ( 28th June )	159	159 [0]	0
2020-06-21 to 2020-06-21	Sundays with Unity : Weekly International Open Online Blitz Tournament	150	150 [0]	0
2020-06-06 to 2020-06-06	I Copa Naciones Ordum 2020 - Absoluto	317	426 [-109]	0
2020-06-06 to 2020-06-06	I Copa Naciones Ordum 2020	319	319 [0]	0
2020-06-04 to 2020-06-04	Asian Juniors Online Rapid Chess Championship 2020	15	15 [0]	2114
2020-06-01 to 2020-06-01	Asian Junior & Girls Online Ch 2020 - Zone 3.7 Qualification	3	3 [0]	0
2020-05-15 to 2020-05-16	Sukooon Resort 1st Indian Chess.com League (ICL)	29	8 [+21]	2607
2019-08-02 to 2019-08-09	Summer Prague Open 2019 - A	3	2 [+1]	2493
2019-01-26 to 2019-01-27	6th Kolkata District Chess Championship 2019. ( Open )	4	2 [+2]	1941
2019-06-09 to 2019-06-16	12th Mayor's Cup International Open Chess Tournament 2019 Category-A	33	22 [+11]	2494
2019-05-09 to 2019-05-09	DD-DBCA One Day Age Gr. Chess Tmt (Under-17)	2	1 [+1]	1884
2019-12-30 to 2020-01-07	EKA IIFL Investment Managers 5th International Grandmaster Chess Tournament	26	57 [-31]	2339
2019-05-31 to 2019-06-07	12th KIIT International Chess Festival - 2019 (Category - A)	22	11 [+11]	2451
2019-07-19 to 2019-07-27	CZECH OPEN 2019 "PARDUBICE OPEN" - A - open grand master tournament	49	50 [-1]	2407
2019-10-07 to 2019-10-12	3rd RGS GUWAHATI INDIA Open FIDE Rating Chess Tournament- 2019 Final Standig - Category prizes Click on- Download Invitation	2	2 [0]	2315
2019-01-02 to 2019-01-04	Outram Club-Alekhine Chess Club New Year Chess Tmt-2019 (Open)	11	9 [+2]	1992
2019-11-01 to 2019-11-09	49th NATIONAL JUNIOR UNDER 19 OPEN CHESS CHAMPIONSHIP 2019 ROUND 9 STARTS AT 3:30 PM	1	3 [-2]	2358
2019-11-29 to 2019-11-30	1ST TCF ALL BENGAL OPEN RAPID CHESS TOURNAMENT	13	2 [+11]	1937
2019-06-18 to 2019-06-25	2nd Goa International Open Grandmasters Chess Tournament-2019 (Category 'A')	49	78 [-29]	2333
2019-02-20 to 2019-02-27	Aeroflot Open 2019 B	79	56 [+23]	2469
2019-03-15 to 2019-03-20	1st DD-DBCA All Bengal Open Fide Rating Chess Tmt-2019 @ Kolkata	1	1 [0]	2169
2019-04-20 to 2019-04-21	4th WB State Rapid Chess Championship 2019(Fide Rated) /Aicf Event Code :215826 / WB(R) / 2019	3	3 [0]	1811
2019-06-28 to 2019-06-29	13th CHESSMATE The Inter-School FIDE Rapid Rating Team Championship 2019. /AICF Event Code No: 211501/ WB (T) 2019	16	1 [+15]	2139
2019-08-10 to 2019-08-17	Olomouc Chess Summer 2019 - A - Proclient Cup turnaj GM	6	3 [+3]	2469
2018-12-14 to 2018-12-19	27th The Telegraph School's Chess Championship 2018 /(AICF EVENT CODE : 203454 / WB /2018)	3	2 [+1]	1983
2019-03-09 to 2019-03-10	2nd SDDM Cup Chess Tournament 2019 @ Rabindra Bhavan, South Dumdum	6	2 [+4]	1963
2019-02-07 to 2019-02-11	39th National Team Championship Kolkata - 7 to 11 Feb 2019	199	27 [+172]	2492
2018-06-26 to 2018-07-03	Commonwealth Chess Championships 2018 OPEN	23	48 [-25]	2175
2018-04-27 to 2018-04-28	12th CHESSMATE (The Inter-School FIDE Rapid Rating Team Championship 2018. AICF Event Code No. 185879/WB(R)2018.	102	13 [+89]	1712
2018-09-22 to 2018-09-23	Sri Suprovat Ghosh Memorial All Bengal Age Group Chess Championship 2018.(A_12 )	2	3 [-1]	1859
2018-06-06 to 2018-06-09	The Heritage WB State Sub-Junior (U-15) Chess Championship 2018 (Open) /AICF EVENT CODE : 188803/WB(S)/2018	1	1 [0]	2062
2018-12-08 to 2018-12-08	INTER-SCHOOL CHESS CHAMPIONSHIP - CHECKMATE 2018 @ Garden High School	12	2 [+10]	1895
2018-04-21 to 2018-04-21	9TH Monthly Chess Tournament 2018	3	2 [+1]	1771
2018-09-16 to 2018-09-16	12th Monthly Chess Tournament 2018	4	6 [-2]	1833
2018-05-14 to 2018-05-22	3rd Kolkata International Open Grandmasters Chess Tournament-2018	51	39 [+12]	2358
2018-06-26 to 2018-07-03	Commonwealth Chess Championships 2018 Under 16 OPEN	1	3 [-2]	2130
2018-01-20 to 2018-01-21	2nd Queen's Gambit Rapid Chess Tournament-2018 @ Kolkata	9	3 [+6]	1984
2018-10-20 to 2018-10-30	World Youth Chess Championships 2018 Open under 16	30	30 [0]	2332
2018-05-25 to 2018-06-01	11th KIIT International Chess Festival - 2018 (Category - A) Event Code : 184430/ORI/2018	37	24 [+13]	2302
2018-01-09 to 2018-01-16	DELHI OPEN 2018 Category "A" Cash Prize 27,77,777, IGI Stadium, New Delhi 09-16 January 2018	71	27 [+44]	2522
2018-07-17 to 2018-07-25	44th National Under-15 Open Chess Championship 2018- Kolkata AICF Event code:188626/WB/2018	1	8 [-7]	2209
2018-02-25 to 2018-02-25	8th Monthly Chess Tournament 2018	4	2 [+2]	1733
2018-11-25 to 2018-12-02	WORLD YOUTH UNDER-16 CHESS OLYMPIAD-2018	42	92 [-50]	2341
2018-08-07 to 2018-08-15	25th Abu Dhabi International Chess Festival - Masters	88	70 [+18]	2412
2018-04-08 to 2018-04-08	Asian Youth Chess Championships 2018 - U16 Blitz	8	9 [-1]	1836
2018-04-01 to 2018-04-01	Asian Youth Chess Championships 2018 - U16 Rapid	7	2 [+5]	2109
2018-05-13 to 2018-05-13	10th Monthly Chess Tournament 2018	2	4 [-2]	1864
2019-01-09 to 2019-01-16	17th DELHI INTERNATIONAL OPEN GRANDMASTERS CHESS TOURNAMENT (Category 'A') Prize Fund Rs 1,01,00,000 @Indira Gandhi Indoor Stadium New Delhi, 9-16 Jan 2019	57	60 [-3]	2246
2018-04-02 to 2018-04-09	Asian Youth Chess Championships 2018 - U16 Standard	1	4 [-3]	2262
2018-08-07 to 2018-08-15	25th Abu Dhabi International Chess Festival - Masters	88	70 [+18]	2412
2017-12-30 to 2018-01-07	IIFL Wealth 3rd Mumbai International Chess Tournament (AICF EC: 168265/MAH/2017)	52	63 [-11]	2177
2017-10-01 to 2017-10-09	43rd National Under-15 Open Chess Championship 2017 Rajpath Club, S G Highway, Ahmedabad.	7	2 [+5]	2294
2018-09-29 to 2018-10-02	46TH W.B. STATE JUNIOR CHESS CHAMPIONSHIP 2018 (OPEN)	4	3 [+1]	2043
2018-08-10 to 2018-08-10	25th Abu Dhabi International Chess Festival - Blitz	77	32 [+45]	2334
2018-06-14 to 2018-06-17	1st West Bengal State Youth (Under 25) Chess Championship 2018. Event Code No.190004/WB(S)/2018.	2	1 [+1]	2275
2017-12-16 to 2017-12-17	Tata Steel - All India Open Rapid Rating Chess Tournament 172203 / WB( R) /2017	19	7 [+12]	1925
2017-09-17 to 2017-09-26	World Youth Chess Championship 2017 U14 Open	14	19 [-5]	2189
2017-08-13 to 2017-08-23	55th National Challengers Chess Championship-2017	65	58 [+7]	2239
2017-08-04 to 2017-08-04	National Blitz Chess Championship 2017	31	22 [+9]	1929
2017-08-01 to 2017-08-03	National Rapid Chess Championship // Event Code :164312/WB(R)/2017	37	7 [+30]	2348
2015-04-03 to 2015-04-05	27th West Bengal State Age Group Chess Championship 2015(Under-13 Boys)	3	4 [-1]	1785
2014-11-26 to 2014-11-30	DBCA ALL INDIA OPEN FIDE RATING CHESS TOURNAMENT	18	30 [-12]	1761
2017-05-26 to 2017-06-02	10th KiiT International Chess Festival - 2017 (Category - A)	57	197 [-140]	1888
2017-06-04 to 2017-06-11	10TH MUMBAI MAYOR'S CUP INTERNATIONAL OPEN CHESS TOURNAMENT 2017 GROUP - A	48	197 [-149]	0
2017-07-29 to 2017-07-29	6th Monthly Chess Tournament 2017	9	6 [+3]	1770
2017-06-05 to 2017-06-05	2nd THE HERITAGE School Team Chess Championship for Boys	33	15 [+18]	1580
2017-06-06 to 2017-06-06	The Heritage Blitz Chess Championship 2017	2	8 [-6]	1884
2017-06-07 to 2017-06-09	2nd The Heritage Rapid Chess Championship 2017	6	5 [+1]	1687
2017-07-08 to 2017-07-09	1st All Bengal FIDE Rated Open Rapid Chess Tournament 2017	20	3 [+17]	1951
2017-05-17 to 2017-05-18	Xtra Time All India Open Rapid FIDE Rating Chess Tournament 2017 /(AICF event Code: 160184 / WB / 2017)	35	21 [+14]	2128
2017-04-01 to 2017-04-02	16th All Bengal Age Gr. Chess Tmt-2017(Under-15) @ Lake Town	2	1 [+1]	1830
2017-05-06 to 2017-05-07	12th Edition Chess for Youth 2017 (Under-14 Mixed)	1	2 [-1]	1796
2017-05-06 to 2017-05-08	12th Edition Chess for Youth 2017 (Premiere)	9	3 [+6]	1918
2017-05-09 to 2017-05-09	4th Monthly Chess Tournament 2017	11	8 [+3]	1655
2017-04-23 to 2017-04-27	55th WB State Fide Rating Chess Championship 2017 /৫৫ তম পশ্চিমবঙ্গ রাজ্য দাবা প্রতিযোগিতা ২০১৭/ [Event code : 158403/WB/2017]	3	4 [-1]	2028
2017-04-05 to 2017-04-09	6th Keshabananda Das All India OPEN Fide Rating Chess Tournament-2017	6	11 [-5]	2058
2017-04-11 to 2017-04-15	3rd Adra Fide Open International Rating Chess Tmt-2017 @ Purulia /(Event Code :157313/WB/2017)	9	7 [+2]	2091
2017-01-09 to 2017-01-16	15th Delhi International Cat: A	63	46 [+17]	2181
2016-12-19 to 2016-12-24	2ND 64 SQUARES FIDE Rated Open Chess Championship-2016/ AICF CODE-149669/WB/2016	5	5 [0]	2134
2016-12-13 to 2016-12-18	DBCA All India Open Rating Chess Tournament 2016 /(Aicf Event Code : 141034/WB/2016)	11	2 [+9]	2248
2016-12-26 to 2016-12-31	6th JRD Tata All India Open Chess Tournament-2016	7	4 [+3]	2026
2016-10-21 to 2016-10-23	11th Edition Chess for Youth-2016(Premier)	14	4 [+10]	1933
2016-10-22 to 2016-10-23	11th Edition Chess for Youth-2016(Under-14)	1	1 [0]	1775
2016-10-12 to 2016-10-15	All Bengal State Amateur FIDE Rated Chess Championship 2016 AICF CODE:143745/WB/2016	3	4 [-1]	1978
2016-08-13 to 2016-08-15	2ND W.B. STATE FIDE RATED RAPID CHESS CHAMPIONSHIP 2016	32	4 [+28]	1968
2016-09-09 to 2016-09-17	27th National Under 17 Open Chess Championship 2016, Kolkata	16	13 [+3]	2081
2016-08-15 to 2016-08-15	2ND W.B. STATE FIDE RATED BLITZ CHESS CHAMPIONSHIP 2016	8	46 [-38]	1692
2016-07-22 to 2016-07-30	30th NATIONAL UNDER-13 BOYS CHESS CHAMPIONSHIP-2016	6	2 [+4]	2131
2016-05-19 to 2016-05-22	44th W.B.State FIDE Rated Junior Chess Championship 2016 - (Open) AICF EVENT CODE : 134160/WB/2016	5	7 [-2]	1808
2016-06-08 to 2016-06-12	54th West Bengal State Chess Championship 2016 (৫৪তম রাজ্য দাবা প্রতিযোগিতা ২০১৬)/(AICF event code: 136483/WB/2016)	12	6 [+6]	1895
2016-07-01 to 2016-07-03	39TH West Bengal State SUB JUNIOR Chess Championship 2016 (BOYS)	7	6 [+1]	1906
2016-04-02 to 2016-04-06	2nd Triple C All India FIDE Rating Open Chess Championship-2016, Event Code : 124856/ODI/2016	16	45 [-29]	1879
2016-05-23 to 2016-05-30	9th KiiT International Chess Festival - 2016 (ELITE Category)	90	79 [+11]	2061
2016-04-08 to 2016-04-10	28th State Age Group Chess Championship 2016 (Boys U-13) /২৮তম রাজ্য বয়স ভিত্তিক দাবা প্রতিযোগিতা ২০১৬ (বালক অনুর্ধ-১৩)	2	1 [+1]	1875
2016-05-14 to 2016-05-18	The Heritage Schools' Rating Chess Championship 2016 /AICF EVENT CODE: 133669/WB/2016	5	12 [-7]	1898
2016-03-25 to 2016-03-26	Kolkata District Chess Championship 2016 (Open) /কলিকাতা জেলা দাবা প্রতিযোগিতা ২০১৬(ওপেন)	9	5 [+4]	1834
2016-03-16 to 2016-03-20	2nd Adra Fide Open International Rating Chess Tournament 2016 /Aicf Event Code:(128623/WB/2016)	34	39 [-5]	2147
2015-12-29 to 2016-01-02	5th WBCWS Open FIDE Rated Chess Tournament AICF/FIDE EVENT CODE:124361/WB/2015	11	5 [+6]	2074
2016-01-09 to 2016-01-16	14th Delhi Open International Grandmasters Chess Tournament-2016 (Category 'A')	94	109 [-15]	2018
2015-11-25 to 2015-11-29	1st Badal Bhattacharya Memorial International Open Fide Rated Chess Tmt_2015 /(Event Code : 122140/WB/2015)	11	2 [+9]	2165
2016-01-28 to 2016-01-31	10th Edition Chess For Youth_2016 (Under-14)	1	2 [-1]	1757
2015-12-25 to 2015-12-28	2nd MCA Fide Rated Bengal Junior Open Chess Tmt 2015 AICF Code :: 119834/WB/2015	1	7 [-6]	1719
2015-08-22 to 2015-08-23	1st W.B.State Fide Rated Rapid Chess Championship 2015 Event Code : 118109/WB/2015(R)	34	35 [-1]	1626
2015-08-23 to 2015-08-23	1st W.B.State Fide Rated Blitz Chess Championship 2015 AICF Event Code 118111/WB/2015 (B)	33	7 [+26]	1930
2015-06-05 to 2015-06-07	Age Group Rapid Chess Championship 2015(Under-12)	1	1 [0]	1655
2015-08-02 to 2015-08-06	1st Ratanlal Kedia Memorial Fide Rated Open Chess Tournament 2015	13	9 [+4]	1984

Koustav Chatterjee - Chess Games

Date	Players & Opening	Result	ECO
2021.10.27	Stany, G.A. (2522) vs (2431) Koustav, Chatterjee Sheikh Russel International Grandmasters Chess Tournament 2021 Spanish Berlin	1/2-1/2	C65
2021.10.26	Koustav, Chatterjee (2431) vs (2585) Asadli, Vugar Sheikh Russel International Grandmasters Chess Tournament 2021 Sicilian Moscow	1/2-1/2	B51
2021.10.25	Vignesh, N R (2453) vs (2431) Koustav, Chatterjee Sheikh Russel International Grandmasters Chess Tournament 2021 Nimzo-Indian Classical	0-1	E32
2021.10.24	Koustav, Chatterjee (2431) vs (2578) Krasenkow, Michal Sheikh Russel International Grandmasters Chess Tournament 2021 Sicilian Rossolimo (Fianchetto) - Rossolimo	1/2-1/2	B31
2021.10.23	Pranav, V (2489) vs (2431) Koustav, Chatterjee Sheikh Russel International Grandmasters Chess Tournament 2021 Sicilian Scheveningen Najdorf - Byrne	0-1	B90
2021.10.22	Shyam, Sundar M. (2518) vs (2431) Koustav, Chatterjee Sheikh Russel International Grandmasters Chess Tournament 2021 Spanish Open Berlin - l'Hermet	1-0	C67
2021.10.21	Koustav, Chatterjee (2431) vs (2515) Visakh, N R Sheikh Russel International Grandmasters Chess Tournament 2021 Sicilian Moscow	1-0	B51
2021.10.20	Deepan, Chakkravarthy J. (2535) vs (2431) Koustav, Chatterjee Sheikh Russel International Grandmasters Chess Tournament 2021 Spanish Closed	1/2-1/2	C84
2021.10.19	Koustav, Chatterjee (2431) vs (2051) Ahmed, Mahtabuddin Sheikh Russel International Grandmasters Chess Tournament 2021 Reti Zukertort	1-0	A06
2021.10.17	Mohammad Fahad, Rahman (2330) vs (2431) Koustav, Chatterjee Year Long 2nd GM Chess Tournament 2021 Spanish Closed - Anti-Marshall	1/2-1/2	C88
2021.10.18	Koustav, Chatterjee (2431) vs (2391) Abdyjapar, Asyl Year Long 2nd GM Chess Tournament 2021 Caro-Kann	1/2-1/2	B10
2021.10.16	Koustav, Chatterjee (2431) vs (2444) Malakhatko, Vadim Year Long 2nd GM Chess Tournament 2021 Reti Zukertort	1-0	A06
2021.10.15	Sanket, Chakravarty (2288) vs (2431) Koustav, Chatterjee Year Long 2nd GM Chess Tournament 2021 Caro-Kann - Accelerated Panov	0-1	B10
2021.10.14	Koustav, Chatterjee (2431) vs (2123) Anata, Choudhury Year Long 2nd GM Chess Tournament 2021 Sicilian - Chekhover	1/2-1/2	B53
2021.10.13	Zubarev, Alexander (2395) vs (2431) Koustav, Chatterjee Year Long 2nd GM Chess Tournament 2021 Spanish Open Berlin	1/2-1/2	C67
2021.10.12	Koustav, Chatterjee (2431) vs (2445) Aronyak, Ghosh Year Long 2nd GM Chess Tournament 2021 Sicilian Scheveningen Najdorf - Alatortsev	1/2-1/2	B90
2021.10.11	Neelash, Saha (2421) vs (2431) Koustav, Chatterjee Year Long 2nd GM Chess Tournament 2021 Queen's Gambit Accepted - Saduleto	1/2-1/2	D20
2021.10.10	Koustav, Chatterjee (2431) vs (2438) Mirzoev, Azer Year Long 2nd GM Chess Tournament 2021 Queen's Pawn - Mason	1/2-1/2	D00
2021.10.07	Lodhi, Mahmood (2334) vs (2431) Koustav, Chatterjee Year Long 1st IM Chess Tournament-2021 Indian East Przepiorka - Szabo	0-1	E62
2021.10.08	Koustav, Chatterjee (2431) vs (2185) Ahmed, Sheikh Nasir Year Long 1st IM Chess Tournament-2021 Indian	1-0	A45
2021.10.06	Koustav, Chatterjee (2431) vs (2409) Abdyjapar, Asyl Year Long 1st IM Chess Tournament-2021 Caro-Kann	1-0	B10
2021.10.05	Sourath, Biswas (2219) vs (2431) Koustav, Chatterjee Year Long 1st IM Chess Tournament-2021 Indian	0-1	A45
2021.10.04	Koustav, Chatterjee (2431) vs (2199) Rahman, Md. Taibur Year Long 1st IM Chess Tournament-2021 Queen's Gambit Declined Semi-Tarrasch	1-0	D41
2021.10.03	Manon, Reja Neer (2162) vs (2431) Koustav, Chatterjee Year Long 1st IM Chess Tournament-2021 Spanish Breyer - Borisenko	0-1	C95
2021.10.02	Koustav, Chatterjee (2431) vs (2206) Chatterjee, Debaraj Year Long 1st IM Chess Tournament-2021 Indian	1-0	A45
2021.10.01	Koustav, Chatterjee (2431) vs (2177) Mehdi, Hasan Parag Year Long 1st IM Chess Tournament-2021 Reti King's Indian - Irregular	1/2-1/2	A11
2021.10.01	Kislinsky, Alexey (2328) vs (2431) Koustav, Chatterjee Year Long 1st IM Chess Tournament-2021 French Tarrasch	0-1	C03
2021.09.29	Zia, Tahsin Tajwar (2229) vs (2431) Koustav, Chatterjee Year Long 1st IM Chess Tournament-2021 Gruenfeld Kemeri (Botvinnik) - Exchange	1-0	D72
2021.09.27	Koustav, Chatterjee (2431) vs (2402) Hossain, Enamul Joytu Sheikh Hasina International Grandmasters Chess Tournament 2021 Slav	1/2-1/2	D10
2021.09.26	Mitrabha, Guha (2467) vs (2431) Koustav, Chatterjee Joytu Sheikh Hasina International Grandmasters Chess Tournament 2021 Irregular Indian	1-0	E10
2021.09.25	Zubarev, Alexander (2409) vs (2431) Koustav, Chatterjee Joytu Sheikh Hasina International Grandmasters Chess Tournament 2021 Spanish Closed	0-1	C88
2021.09.24	Koustav, Chatterjee (2431) vs (2312) Srijit, Paul Joytu Sheikh Hasina International Grandmasters Chess Tournament 2021 Sicilian	1/2-1/2	B40
2021.09.23	Das, Sayantan (2431) vs (2431) Koustav, Chatterjee Joytu Sheikh Hasina International Grandmasters Chess Tournament 2021 Spanish Open Berlin	1-0	C67
2021.09.22	Koustav, Chatterjee (2431) vs (2412) Sammed Jaykumar, Shete Joytu Sheikh Hasina International Grandmasters Chess Tournament 2021 Two Knights - Modern Bishop	1-0	C55
2021.09.21	Mohammad Fahad, Rahman (2339) vs (2431) Koustav, Chatterjee Joytu Sheikh Hasina International Grandmasters Chess Tournament 2021 Queen's Gambit Declined	0-1	D30
2021.09.20	Koustav, Chatterjee (2431) vs (2231) Piyumantha, M Sasith Nipun Joytu Sheikh Hasina International Grandmasters Chess Tournament 2021 Gruenfeld Kemeri (Bogolubov) - King's Indian	1/2-1/2	D78
2021.09.19	Nayem, Haque (2080) vs (2431) Koustav, Chatterjee Joytu Sheikh Hasina International Grandmasters Chess Tournament 2021 Neo-Indian - Catalan Irregular	0-1	E00
2021.03.29	Koustav, Chatterjee (2431) vs (2215) Rahman, Md. Taibur SAIF POWERTEC Premier Division Chess League-2021 Queen's Gambit Declined	1-0	D30
2021.03.28	Koustav, Chatterjee (2431) vs (2054) Md. Masum, Hossain SAIF POWERTEC Premier Division Chess League-2021 Sicilian	1-0	B40
2021.03.26	Md. Shawket Bin, Osman Shaon (1982) vs (2431) Koustav, Chatterjee SAIF POWERTEC Premier Division Chess League-2021 Old Benoni	0-1	A43
2021.03.25	Koustav, Chatterjee (2431) vs (2301) Kaustuv, Kundu SAIF POWERTEC Premier Division Chess League-2021 Scandinavian	1-0	B01
2021.03.24	Koustav, Chatterjee (2431) vs (2204) Mehdi, Hasan Parag SAIF POWERTEC Premier Division Chess League-2021 English Sicilian	1-0	A20
2021.03.23	Koustav, Chatterjee (2431) vs (2106) Sanket, Chakravarty SAIF POWERTEC Premier Division Chess League-2021 Sicilian Rossolimo (Fianchetto) - Rossolimo	1-0	B31
2021.03.22	Koustav, Chatterjee (2431) vs (2049) Sahu, Sekhar Chandra SAIF POWERTEC Premier Division Chess League-2021 Modern	0-1	A41
2021.03.21	Rahman, Ziaur (2419) vs (2431) Koustav, Chatterjee SAIF POWERTEC Premier Division Chess League-2021 Reti King's Indian - Barcza	1/2-1/2	A07
2021.03.20	Islam, Khandaker Aminul (2174) vs (2431) Koustav, Chatterjee SAIF POWERTEC Premier Division Chess League-2021 Indian Capablanca	0-1	A47
2021.03.19	Koustav, Chatterjee (2431) vs (2618) Narayanan.S.L, SAIF POWERTEC Premier Division Chess League-2021 Queen's Gambit Declined Ragozin	0-1	D38
2020.01.07	Aleksandrov, Aleksej (2592) vs (2447) Koustav, Chatterjee EKA IIFL Investment Managers 5th International Grandmaster Chess Tournament Nimzo-Indian St. Petersburg Rubinstein - Reshevsky	1-0	E46
2020.01.06	Koustav, Chatterjee (2447) vs (2309) Pranav, Anand EKA IIFL Investment Managers 5th International Grandmaster Chess Tournament Indian Knight	1-0	A46
2020.01.05	Pranesh, M (2317) vs (2447) Koustav, Chatterjee EKA IIFL Investment Managers 5th International Grandmaster Chess Tournament Spanish Closed - Marshall	1/2-1/2	C89
2020.01.04	Saravana, Krishnan P. (2304) vs (2447) Koustav, Chatterjee EKA IIFL Investment Managers 5th International Grandmaster Chess Tournament French Classical - Steinitz	1/2-1/2	C14
2020.01.03	Koustav, Chatterjee (2447) vs (2308) Krishnater, Kushager EKA IIFL Investment Managers 5th International Grandmaster Chess Tournament King's Indian Schwarz (Makogonov)	1/2-1/2	E71
2020.01.02	Senthil, Maran K (2305) vs (2447) Koustav, Chatterjee EKA IIFL Investment Managers 5th International Grandmaster Chess Tournament Catalan Irregular - Closed	1/2-1/2	E01
2019.12.31	Pandey, Srishti (2162) vs (2447) Koustav, Chatterjee EKA IIFL Investment Managers 5th International Grandmaster Chess Tournament Gruenfeld Three Knights (Hungarian)	1/2-1/2	D93
2019.12.30	Koustav, Chatterjee (2447) vs (2167) Patil, Pratik EKA IIFL Investment Managers 5th International Grandmaster Chess Tournament English Anglo-Indian	1/2-1/2	A15
2019.10.12	Koustav, Chatterjee (2442) vs (2415) Dhulipalla, Bala Chandra Prasad 3rd RGS GUWAHATI INDIA Open Rating Chess Tournament- Inaguration @02:00 P.M. English Agincourt - King's Knight	1/2-1/2	A13
2019.10.11	Das, Sayantan (2440) vs (2442) Koustav, Chatterjee 3rd RGS GUWAHATI INDIA Open Rating Chess Tournament- Inaguration @02:00 P.M. Spanish Morphy - Treybal	0-1	C77
2019.10.11	Singh, Y. Dhanabir (2088) vs (2442) Koustav, Chatterjee 3rd RGS GUWAHATI INDIA Open Rating Chess Tournament- Inaguration @02:00 P.M. Sicilian Barnes	0-1	B44
2019.10.10	Koustav, Chatterjee (2442) vs (2465) Vasquez Schroeder, Rodrigo 3rd RGS GUWAHATI INDIA Open Rating Chess Tournament- Inaguration @02:00 P.M. Neo-Indian - Catalan Irregular	1/2-1/2	E00
2019.10.10	Ramnathan, Balasubramaniam (2201) vs (2442) Koustav, Chatterjee 3rd RGS GUWAHATI INDIA Open Rating Chess Tournament- Inaguration @02:00 P.M. Reti Zukertort - Mexican	1/2-1/2	A06
2019.10.09	Koustav, Chatterjee (2442) vs (2095) Shahil, Dey 3rd RGS GUWAHATI INDIA Open Rating Chess Tournament- Inaguration @02:00 P.M. Reti Symmetrical - Stoltz	1-0	D45
2019.10.09	Wiwatanadate, Poompong (2043) vs (2442) Koustav, Chatterjee 3rd RGS GUWAHATI INDIA Open Rating Chess Tournament- Inaguration @02:00 P.M. Alekhine	0-1	B02
2019.10.08	Koustav, Chatterjee (2442) vs (1734) Sanjit, Saha 3rd RGS GUWAHATI INDIA Open Rating Chess Tournament- Inaguration @02:00 P.M. Bogo-Indian - Gruenfeld	1-0	E11
2019.10.08	Challangga, D Sangma (1467) vs (2442) Koustav, Chatterjee 3rd RGS GUWAHATI INDIA Open Rating Chess Tournament- Inaguration @02:00 P.M. Queen's Pawn Zukertort - London	0-1	D02
2019.10.07	Koustav, Chatterjee (2442) vs (1237) Mukul, Borah 3rd RGS GUWAHATI INDIA Open Rating Chess Tournament- Inaguration @02:00 P.M. Giuoco Piano - Greco	1-0	C54
2019.08.17	KOUSTAV, Chatterjee (2429) vs (2403) EGGLESTON, David J Olomouc Chess Summer 2019 - A - Proclient Cup Reti Symmetrical - Nimzovich	1/2-1/2	A17
2019.08.16	CERNOUSEK, Lukas (2451) vs (2429) KOUSTAV, Chatterjee Olomouc Chess Summer 2019 - A - Proclient Cup Nimzo-Indian Classical	0-1	E32
2019.08.15	KOUSTAV, Chatterjee (2429) vs (2397) PULPAN, Jakub Olomouc Chess Summer 2019 - A - Proclient Cup Indian	0-1	A45
2019.08.14	SZWED, Jacek (2384) vs (2429) KOUSTAV, Chatterjee Olomouc Chess Summer 2019 - A - Proclient Cup Alekhine - Exchange	1/2-1/2	B03
2019.08.13	KOUSTAV, Chatterjee (2429) vs (2207) STIGAR, Petter Olomouc Chess Summer 2019 - A - Proclient Cup English Symmetrical	1-0	A30
2019.08.12	NEUMAN, Petr (2392) vs (2429) KOUSTAV, Chatterjee Olomouc Chess Summer 2019 - A - Proclient Cup English Sicilian	0-1	A20
2019.08.11	KOUSTAV, Chatterjee (2429) vs (2446) BIOLEK, Richard Olomouc Chess Summer 2019 - A - Proclient Cup Queen's Gambit Chigorin	1/2-1/2	D07
2019.08.11	ARKELL, Keith C (2445) vs (2429) KOUSTAV, Chatterjee Olomouc Chess Summer 2019 - A - Proclient Cup English Anglo-Indian - King's Knight	1/2-1/2	A15
2019.08.10	BARUA, Dibyendu (2379) vs (2429) KOUSTAV, Chatterjee Olomouc Chess Summer 2019 - A - Proclient Cup Sicilian - Pelikan (Chelyabinsk)	1/2-1/2	B33
2019.07.27	MATVIISHEN, Viktor (2495) vs (2430) KOUSTAV, Chatterjee CZECH OPEN 2019 "PARDUBICE OPEN" - A - Catalan Open (Classical)	1-0	E04
2019.07.26	KOUSTAV, Chatterjee (2430) vs (2505) ZANAN, Evgeny CZECH OPEN 2019 "PARDUBICE OPEN" - A - Nimzo-Indian Classical	1/2-1/2	E32
2019.07.25	GUNGL, Theo (2306) vs (2430) KOUSTAV, Chatterjee CZECH OPEN 2019 "PARDUBICE OPEN" - A - Nimzo-Indian St. Petersburg (Fischer)	0-1	E44
2019.07.24	KOUSTAV, Chatterjee (2430) vs (2305) PUNIN, Andrii CZECH OPEN 2019 "PARDUBICE OPEN" - A - English Agincourt - King's Knight	1/2-1/2	A13
2019.07.23	DEMIDOV, Mikhail (2546) vs (2430) KOUSTAV, Chatterjee CZECH OPEN 2019 "PARDUBICE OPEN" - A - Nimzo-Indian Landau	1-0	E51
2019.07.22	KOUSTAV, Chatterjee (2430) vs (2049) BURIAN, Simon CZECH OPEN 2019 "PARDUBICE OPEN" - A - Gruenfeld Three Knights	1-0	D90
2019.07.21	KELLER, Peter (2279) vs (2430) KOUSTAV, Chatterjee CZECH OPEN 2019 "PARDUBICE OPEN" - A - Sicilian Barnes (Bastrikov)	1/2-1/2	B48
2019.07.20	KOUSTAV, Chatterjee (2430) vs (2270) MELESHKO, Volodymyr CZECH OPEN 2019 "PARDUBICE OPEN" - A - Reti Symmetrical	1-0	A05
2019.07.19	TEJASWINI, Sagar (2191) vs (2430) KOUSTAV, Chatterjee CZECH OPEN 2019 "PARDUBICE OPEN" - A - Alekhine - Exchange	0-1	B03
2019.06.16	Koustav, Chatterjee (2404) vs (2481) Rahman, Ziaur 12th Mayor's Cup International Open Chess Tournament 2019 "A" Category Queen's Gambit Declined - Old Semi-Slav	0-1	D31
2019.06.15	Koustav, Chatterjee (2404) vs (2580) Jojua, Davit 12th Mayor's Cup International Open Chess Tournament 2019 "A" Category Irregular Queen's Pawn - Kotov (Robatsch)	1/2-1/2	A40
2019.06.14	Balkishan, A. (2074) vs (2404) Koustav, Chatterjee 12th Mayor's Cup International Open Chess Tournament 2019 "A" Category Reti Symmetrical - King's Indian	0-1	A05
2019.06.13	Burmakin, Vladimir (2526) vs (2404) Koustav, Chatterjee 12th Mayor's Cup International Open Chess Tournament 2019 "A" Category Reti Symmetrical - King's Indian	1/2-1/2	A05
2019.06.12	Koustav, Chatterjee (2404) vs (2579) Turov, Maxim 12th Mayor's Cup International Open Chess Tournament 2019 "A" Category Neo-Indian - Catalan Irregular	1/2-1/2	E00
2019.06.12	Koustav, Chatterjee (2404) vs (2527) Tukhaev, Adam 12th Mayor's Cup International Open Chess Tournament 2019 "A" Category Sicilian Maroczy - Kotov	1/2-1/2	B38
2019.06.11	Mchedlishvili, Mikheil (2609) vs (2404) Koustav, Chatterjee 12th Mayor's Cup International Open Chess Tournament 2019 "A" Category Nimzo-Indian Classical	0-1	E32
2019.06.10	Koustav, Chatterjee (2404) vs (2611) Ter-Sahakyan, Samvel 12th Mayor's Cup International Open Chess Tournament 2019 "A" Category Catalan Irregular - Closed	1/2-1/2	E01
2019.06.07	Laxman, R.R. (2446) vs (2404) Koustav, Chatterjee 12th KIIT International Chess Festival - 2019 (Category - A) Slav Czech - Symmetrical	1/2-1/2	D17
2019.06.06	Koustav, Chatterjee (2404) vs (2450) Kostenko, Petr 12th KIIT International Chess Festival - 2019 (Category - A) English - Anglo-Dutch	1/2-1/2	A10
2019.06.05	Vasquez Schroeder, Rodrigo (2476) vs (2404) Koustav, Chatterjee 12th KIIT International Chess Festival - 2019 (Category - A) Indian	1/2-1/2	A45
2019.06.04	Koustav, Chatterjee (2404) vs (2495) Neverov, Valeriy 12th KIIT International Chess Festival - 2019 (Category - A) Gruenfeld - Gruenfeld	1/2-1/2	E60
2019.06.04	Suvrajit, Saha (2208) vs (2404) Koustav, Chatterjee 12th KIIT International Chess Festival - 2019 (Category - A) English Agincourt - Old Semi-Slav	0-1	D31
2019.06.03	Koustav, Chatterjee (2404) vs (2519) Burmakin, Vladimir 12th KIIT International Chess Festival - 2019 (Category - A) English Anglo-Slav	1/2-1/2	A11
2019.06.02	Iturrizaga Bonelli, Eduardo (2637) vs (2404) Koustav, Chatterjee 12th KIIT International Chess Festival - 2019 (Category - A) English Hedgehog	1/2-1/2	A17
2019.06.02	Koustav, Chatterjee (2404) vs (2111) Rathneesh, R 12th KIIT International Chess Festival - 2019 (Category - A) Reti Symmetrical - King's Indian	1-0	A05
2019.06.24	Gukesh, D (2543) vs (2404) Koustav, Chatterjee 2nd Goa International Open Grandmasters Chess Tournament-2019 (Category 'A') English Symmetrical Two Knights	1-0	A35
2019.06.23	Koustav, Chatterjee (2404) vs (2543) Fier, Alexandr 2nd Goa International Open Grandmasters Chess Tournament-2019 (Category 'A') Reti Symmetrical	1/2-1/2	A05
2019.06.21	Stupak, Kirill (2584) vs (2404) Koustav, Chatterjee 2nd Goa International Open Grandmasters Chess Tournament-2019 (Category 'A') Irregular Indian	1-0	E10
2019.06.20	Koustav, Chatterjee (2404) vs (2597) Idani, Pouya 2nd Goa International Open Grandmasters Chess Tournament-2019 (Category 'A') English Sicilian	1/2-1/2	A20
2019.03.20	Debasish, Mukherjee (2043) vs (2358) Koustav, Chatterjee 1st DD-DBCA All Bengal Open Fide Rating Chess Tmt-2019 @ Kolkata Queen's Pawn Zukertort - Symmetrical	0-1	D02
2019.03.17	Koustav, Chatterjee (2358) vs (1731) Akash, Tiwari 1st DD-DBCA All Bengal Open Fide Rating Chess Tmt-2019 @ Kolkata Queen's Pawn - Mason	1-0	D00
2019.03.17	Mukherjee, Dyutimoy (1788) vs (2358) Koustav, Chatterjee 1st DD-DBCA All Bengal Open Fide Rating Chess Tmt-2019 @ Kolkata Caro-Kann	1/2-1/2	B10
2019.03.16	Koustav, Chatterjee (2358) vs (1533) Tapan, Kr. Ghosh 1st DD-DBCA All Bengal Open Fide Rating Chess Tmt-2019 @ Kolkata Gruenfeld Kemeri - Gruenfeld	1-0	D71
2019.03.16	Pramit, Chanda (1367) vs (2358) Koustav, Chatterjee 1st DD-DBCA All Bengal Open Fide Rating Chess Tmt-2019 @ Kolkata Queen's Pawn - Levitsky	0-1	D00
2019.03.15	Koustav, Chatterjee (2358) vs (1121) Saptarshi, Talukdar 1st DD-DBCA All Bengal Open Fide Rating Chess Tmt-2019 @ Kolkata English Anglo-Indian - King's Knight	1-0	A15
2019.02.27	Saydaliev, Saidakbar (2390) vs (2332) Koustav, Chatterjee Aeroflot Open 2018 B Caro-Kann	1/2-1/2	B10
2019.02.26	Koustav, Chatterjee (2332) vs (2434) Hayrapetyan, Hovik Aeroflot Open 2018 B Reti Gambit - Neo-Catalan	0-1	A13
2019.02.25	Bocharov, Dmitry (2540) vs (2332) Koustav, Chatterjee Aeroflot Open 2018 B English Anglo-Indian	1-0	A15
2019.02.24	Koustav, Chatterjee (2332) vs (2448) Gaifullin, Artur Aeroflot Open 2018 B Catalan Irregular - Gambit	1/2-1/2	E01
2019.02.24	Gasanov, Eldar (2500) vs (2332) Koustav, Chatterjee Aeroflot Open 2018 B Neo-Indian - Seirawan	1/2-1/2	E00
2019.02.23	Koustav, Chatterjee (2332) vs (2422) Lavrik, Dmitry Aeroflot Open 2018 B Slav Rubinstein	1/2-1/2	D11
2019.02.22	Li, Di (2534) vs (2332) Koustav, Chatterjee Aeroflot Open 2018 B Irregular Indian	1/2-1/2	E10
2019.02.21	Koustav, Chatterjee (2332) vs (2464) Belyakov, Bogdan Aeroflot Open 2018 B King's Indian Fianchetto (Panno) - Gruenfeld	1-0	E63
2019.02.20	Hamitevici, Vladimir (2490) vs (2332) Koustav, Chatterjee Aeroflot Open 2018 B Reti Symmetrical - King's Indian	0-1	A05
2019.01.16	Koustav, Chatterjee (2346) vs (2214) Kurbonboeva, Sarvinoz 17th DELHI INTERNATIONAL OPEN GRANDMASTERS CHESS TOURNAMENT (Category 'A') Gruenfeld - Gruenfeld	1/2-1/2	E60
2019.01.15	Aleksandrov, Aleksej (2582) vs (2346) Koustav, Chatterjee 17th DELHI INTERNATIONAL OPEN GRANDMASTERS CHESS TOURNAMENT (Category 'A') English Mikenas - Flohr	1/2-1/2	A18
2019.01.10	Erigaisi, Arjun (2548) vs (2346) Koustav, Chatterjee 17th DELHI INTERNATIONAL OPEN GRANDMASTERS CHESS TOURNAMENT (Category 'A') Sicilian - Pelikan (Chelyabinsk)	1-0	B33
2018.10.30	Koustav, Chatterjee (2344) vs (2481) Gavrilescu, David WYCC Open u16 Reti Zukertort	0-1	A06
2018.10.29	Vrolijk, Liam (2437) vs (2344) Koustav, Chatterjee WYCC Open u16 Irregular Indian	1/2-1/2	E10
2018.10.28	Koustav, Chatterjee (2344) vs (2218) Sargsyan, Tigran R. WYCC Open u16 Slav	1/2-1/2	D10
2018.10.27	Peng, Hongchi (2273) vs (2344) Koustav, Chatterjee WYCC Open u16 French Paulsen - Steinitz (Boleslavsky)	0-1	C11
2018.10.26	Koustav, Chatterjee (2344) vs (2290) Kamer, Kayra WYCC Open u16 King's Indian Schwarz - Semi-Averbakh	1-0	E73
2018.10.24	Lou, Vincent (2155) vs (2344) Koustav, Chatterjee WYCC Open u16 King's Indian Modern	0-1	E95
2018.10.23	Koustav, Chatterjee (2344) vs (2155) Beukes, Dante M WYCC Open u16 Reti Symmetrical - Nimzovich	1/2-1/2	A05
2018.10.22	Loiacono, Leonardo (2277) vs (2344) Koustav, Chatterjee WYCC Open u16 Neo-Indian - Exchange	1-0	D35
2018.10.21	Koustav, Chatterjee (2344) vs (2463) Sargsyan, Shant WYCC Open u16 Nimzo-Indian St. Petersburg Rubinstein	0-1	E46
2018.10.21	Juksta, Karolis (2234) vs (2344) Koustav, Chatterjee WYCC Open u16 Nimzo-Indian St. Petersburg (Fischer)	0-1	E44
2018.10.20	Koustav, Chatterjee (2344) vs (1952) Pena Cifuentes, Tomas Alberto WYCC Open u16 Reti Zukertort	1-0	A06
2018.07.25	Koustav, Chatterjee (2383) vs (2309) Kushagra, Mohan 44th National Under-15 Open Chess Championship 2018- Kolkata Indian	0-1	A45
2018.07.24	Soham, Kamotra (2065) vs (2383) Koustav, Chatterjee 44th National Under-15 Open Chess Championship 2018- Kolkata English Sicilian	0-1	A20
2018.07.23	Koustav, Chatterjee (2383) vs (1927) Srihari, L 44th National Under-15 Open Chess Championship 2018- Kolkata King's Indian Schwarz - Semi-Averbakh	1/2-1/2	E73
2018.07.22	Sankalp, Gupta (2341) vs (2383) Koustav, Chatterjee 44th National Under-15 Open Chess Championship 2018- Kolkata Sicilian Scheveningen Najdorf - Adams	1-0	B90
2018.07.21	Koustav, Chatterjee (2383) vs (2194) Harshavardhan, G B 44th National Under-15 Open Chess Championship 2018- Kolkata Indian - London	1-0	A46
2018.07.20	Aronyak, Ghosh (2310) vs (2383) Koustav, Chatterjee 44th National Under-15 Open Chess Championship 2018- Kolkata Indian	1/2-1/2	A45
2018.07.20	Koustav, Chatterjee (2383) vs (2261) Moksh, Amit Doshi 44th National Under-15 Open Chess Championship 2018- Kolkata Reti Symmetrical - Neo-Catalan Accepted	1-0	A13
2018.07.19	Mehta, Naitik R (1960) vs (2383) Koustav, Chatterjee 44th National Under-15 Open Chess Championship 2018- Kolkata Sicilian Closed	0-1	B23
2018.07.18	Koustav, Chatterjee (2383) vs (1863) Hari, R Chandran 44th National Under-15 Open Chess Championship 2018- Kolkata English Agincourt	1-0	A13
2018.07.18	Sarthak, Rawat (1672) vs (2383) Koustav, Chatterjee 44th National Under-15 Open Chess Championship 2018- Kolkata Sicilian Paulsen	0-1	B43
2018.07.17	Koustav, Chatterjee (2383) vs (1474) Aryan, Bandyopadhyay 44th National Under-15 Open Chess Championship 2018- Kolkata Indian	1-0	A45
2018.07.03	Koustav, Chatterjee (2365) vs (1894) Cheela Naga, Sampath Commonwealth Chess Championships 2018 Under 16 OPEN Queen's Gambit Declined	1-0	D31
2018.07.01	Koustav, Chatterjee (2365) vs (2234) Raahul, V S Commonwealth Chess Championships 2018 Under 16 OPEN Indian - Trompowsky	0-1	A45
2018.06.29	Koustav, Chatterjee (2365) vs (2087) Tarun, V Kanth Commonwealth Chess Championships 2018 Under 16 OPEN Queen's Gambit Declined Exchange - Exchange	1-0	D36
2018.06.27	Koustav, Chatterjee (2365) vs (1879) Sibi, Visal R Commonwealth Chess Championships 2018 Under 16 OPEN Nimzovich - English	1/2-1/2	A01
2018.06.26	Garvit, Kumar Kalra (1616) vs (2365) Koustav, Chatterjee Commonwealth Chess Championships 2018 Under 16 OPEN Sicilian	0-1	B40
2018.08.14	Koustav, Chatterjee (2325) vs (2426) Mammadzada, Gunay 25th Abu Dhabi International Chess Festival - Masters Reti	1/2-1/2	A04
2018.08.13	Koustav, Chatterjee (2325) vs (2419) Ikeda, Junta 25th Abu Dhabi International Chess Festival - Masters Dutch Queen's Knight - Krause	1-0	A85
2018.08.12	Gajwa, Ankit (2223) vs (2325) Koustav, Chatterjee 25th Abu Dhabi International Chess Festival - Masters Alekhine Modern - Alburt	0-1	B04
2018.08.11	Koustav, Chatterjee (2325) vs (2106) Priyanka, K 25th Abu Dhabi International Chess Festival - Masters Reti Symmetrical - Nimzovich	1/2-1/2	A05
2018.08.11	Puranik, Abhimanyu (2514) vs (2325) Koustav, Chatterjee 25th Abu Dhabi International Chess Festival - Masters Caro-Kann - Two Knights	1-0	B11
2018.08.09	Koustav, Chatterjee (2325) vs (2217) Samant, Aditya S 25th Abu Dhabi International Chess Festival - Masters English Sicilian	1-0	A20
2018.08.08	Petrosian, Tigran L. (2610) vs (2325) Koustav, Chatterjee 25th Abu Dhabi International Chess Festival - Masters Reti Symmetrical - French	1-0	A08
2018.08.07	Koustav, Chatterjee (2325) vs (2677) Sjugirov, Sanan 25th Abu Dhabi International Chess Festival - Masters Reti	1/2-1/2	A04
2018.05.18	Koustav, Chatterjee (2364) vs (2512) Tran, Tuan Minh 3rd Kolkata International Open Grandmasters Chess Tournament-2018 English Sicilian	0-1	A20
2018.05.17	Shyam, Sundar M. (2518) vs (2364) Koustav, Chatterjee 3rd Kolkata International Open Grandmasters Chess Tournament-2018 Sicilian Scheveningen Najdorf - Byrne	1/2-1/2	B90
2018.05.16	Koustav, Chatterjee (2364) vs (2528) Burmakin, Vladimir 3rd Kolkata International Open Grandmasters Chess Tournament-2018 English Anglo-Slav	1/2-1/2	A11
2018.05.28	Sandipan, Chanda (2573) vs (2364) Koustav, Chatterjee 11th KIIT International Chess Festival - 2018 (Category - A) Nimzo-Indian St. Petersburg Rubinstein	1-0	E46
2018.05.28	Koustav, Chatterjee (2364) vs (2485) Vignesh, N R 11th KIIT International Chess Festival - 2018 (Category - A) English Sicilian	1/2-1/2	A20
2018.04.01	Abdisalimov, Abdimalik (2059) vs (2027) Koustav, Chatterjee Asian Youth Chess Championships 2018 Nimzo-Indian St. Petersburg Rubinstein (Normal)	1-0	E47
2018.04.05	Abdilkhair, Abilmansur (2185) vs (2381) Koustav, Chatterjee Asian Youth Chess Championships 2018 Sicilian - Steinitz	1-0	B20
2018.04.04	Koustav, Chatterjee (2381) vs (2213) Subrota, Biswas Asian Youth Chess Championships 2018 Modern	1-0	A41
2018.04.02	Vatsal, Singhania (2106) vs (2381) Koustav, Chatterjee Asian Youth Chess Championships 2018 Sicilian Barnes (Bastrikov)	1-0	B48
2018.04.02	Koustav, Chatterjee (2381) vs (1850) Pheephacharakan, Pinatpong Asian Youth Chess Championships 2018 Indian	1-0	A45
2018.01.16	Koustav, Chatterjee (2288) vs (2570) Tukhaev, Adam DELHI OPEN 2018 Category "A" Cash Prize 27,77,777, IGI Stadium, New Delhi Irregular Queen's Pawn - Kotov	0-1	A40
2018.01.15	Sengupta, Deep (2586) vs (2288) Koustav, Chatterjee DELHI OPEN 2018 Category "A" Cash Prize 27,77,777, IGI Stadium, New Delhi Sicilian Barnes (Bastrikov)	1/2-1/2	B47
2018.01.14	Koustav, Chatterjee (2288) vs (2536) Pruijssers, Roeland DELHI OPEN 2018 Category "A" Cash Prize 27,77,777, IGI Stadium, New Delhi Indian	1/2-1/2	A45
2018.01.13	Gusain, Himal (2450) vs (2288) Koustav, Chatterjee DELHI OPEN 2018 Category "A" Cash Prize 27,77,777, IGI Stadium, New Delhi Sicilian Barnes (Bastrikov)	0-1	B48
2018.01.12	David, Alberto (2553) vs (2288) Koustav, Chatterjee DELHI OPEN 2018 Category "A" Cash Prize 27,77,777, IGI Stadium, New Delhi Sicilian	1-0	B40
2018.01.10	Koustav, Chatterjee (2288) vs (2497) Karthikeyan, P. DELHI OPEN 2018 Category "A" Cash Prize 27,77,777, IGI Stadium, New Delhi English Anglo-Indian - Neo-Catalan Accepted	1/2-1/2	A13
2017.09.26	Nesterov, Arseniy (2380) vs (2214) Koustav, Chatterjee World Youth Chess Championship 2017 Queen's Gambit Declined - Old Semi-Slav	1-0	D31
2017.09.25	Koustav, Chatterjee (2214) vs (2328) Erigaisi, Arjun World Youth Chess Championship 2017 Indian Capablanca	0-1	A47
2017.09.24	Teclaf, Pawel (2394) vs (2214) Koustav, Chatterjee World Youth Chess Championship 2017 Sicilian Barnes (Bastrikov)	1-0	B47
2017.09.23	Koustav, Chatterjee (2214) vs (2301) Batsuren, Dambasuren World Youth Chess Championship 2017 English Anglo-Indian	1/2-1/2	A15
2017.09.22	Kopylov, Daniel (2243) vs (2214) Koustav, Chatterjee World Youth Chess Championship 2017 Sicilian	0-1	B40
2017.09.22	Koustav, Chatterjee (2214) vs (2225) Turgut, Aydin World Youth Chess Championship 2017 English Sicilian	1-0	A20
2017.09.20	Rojas, Steven (1942) vs (2214) Koustav, Chatterjee World Youth Chess Championship 2017 Sicilian Barnes (Bastrikov)	0-1	B47
2017.09.19	Koustav, Chatterjee (2214) vs (1884) Vazquez, Facundo World Youth Chess Championship 2017 Indian - Trompowsky	1-0	A45
2017.09.18	Costello, Alexander (2081) vs (2214) Koustav, Chatterjee World Youth Chess Championship 2017 Sicilian Barnes (Bastrikov)	1-0	B48
2017.09.18	Koustav, Chatterjee (2214) vs (1972) Ojeda Venegas, Tomas World Youth Chess Championship 2017 Indian - Trompowsky	1-0	A45
2017.09.17	Jodorcovsky, Paulo Leonardo (1616) vs (2214) Koustav, Chatterjee World Youth Chess Championship 2017 Queen's Gambit Declined - Old Semi-Slav	0-1	D31
2017.08.20	Koustav, Chatterjee (2108) vs (2466) Deepan, Chakkravarthy J. 55th National Challengers Chess Championship-2017 English - Snake	0-1	A10
2017.08.19	Nitin, S. (2421) vs (2108) Koustav, Chatterjee 55th National Challengers Chess Championship-2017 Sicilian	1/2-1/2	B40
2017.01.11	Venkatesh, M.R. (2439) vs (2265) Koustav, Chatterjee 15th Delhi International Cat: A Reti King's Indian	1/2-1/2	A07
2016.09.17	Koustav, Chatterjee (2106) vs (2260) Jayakumaar, S 27th National Under 17 Open Chess Championship 2016, Kolkata Queen's Gambit Declined - Charousek	1/2-1/2	D31
2016.09.16	Pranavananda, V (2271) vs (2106) Koustav, Chatterjee 27th National Under 17 Open Chess Championship 2016, Kolkata Sicilian Barnes (Bastrikov)	1-0	B47
2016.09.15	Koustav, Chatterjee (2106) vs (1818) Saksham, Rautela 27th National Under 17 Open Chess Championship 2016, Kolkata Nimzo-Indian Rubinstein	1-0	E42
2016.09.14	Hemanth, Raam (1989) vs (2106) Koustav, Chatterjee 27th National Under 17 Open Chess Championship 2016, Kolkata Sicilian Barnes (Bastrikov)	1/2-1/2	B47
2016.09.13	Koustav, Chatterjee (2106) vs (2353) Harikrishnan.A.Ra, 27th National Under 17 Open Chess Championship 2016, Kolkata Indian - Mexican	1/2-1/2	A50
2016.09.12	Subhayan, Kundu (2209) vs (2106) Koustav, Chatterjee 27th National Under 17 Open Chess Championship 2016, Kolkata Sicilian Barnes (Bastrikov)	1/2-1/2	B48
2016.09.12	Koustav, Chatterjee (2106) vs (1808) Kamdar, Udit 27th National Under 17 Open Chess Championship 2016, Kolkata Semi-Slav Meran - Wade	1-0	D47
2016.09.10	Koustav, Chatterjee (2106) vs (2284) Sammed Jaykumar, Shete 27th National Under 17 Open Chess Championship 2016, Kolkata King's Indian Saemisch	0-1	E81
2016.07.30	Shelke, Sankarsha (2165) vs (2040) Koustav, Chatterjee 30th NATIONAL UNDER-13 BOYS CHESS CHAMPIONSHIP-2016 Sicilian Barnes (Bastrikov)	0-1	B48
2016.07.29	Koustav, Chatterjee (2040) vs (2043) Sreeshwan, Maralakshikari 30th NATIONAL UNDER-13 BOYS CHESS CHAMPIONSHIP-2016 King's Indian Orthodox	0-1	E86
2016.07.28	Arnav, Tiwari (1849) vs (2040) Koustav, Chatterjee 30th NATIONAL UNDER-13 BOYS CHESS CHAMPIONSHIP-2016 Sicilian Barnes (Bastrikov)	0-1	B49
2016.07.27	Koustav, Chatterjee (2040) vs (1990) Sankalp, Gupta 30th NATIONAL UNDER-13 BOYS CHESS CHAMPIONSHIP-2016 Gruenfeld - Goglidze	1/2-1/2	D70