[Event "Dhaka Sheikh Russel op"] [Site "Dhaka"] [Date "2021.10.19"] [Round "1"] [White "Koustav, Chatterjee"] [Black "Ahmed, Mahtabuddin"] [Result "1-0"] [ECO "D11"] [WhiteElo "2431"] [BlackElo "2051"] [PlyCount "69"] [EventDate "2021.10.19"] [EventType "swiss"] [EventRounds "9"] [EventCountry "BAN"] [SourceTitle "CBM 204 Extra"] [Source "ChessBase"] [SourceDate "2022.09.12"] [SourceVersion "1"] [SourceVersionDate "2022.09.12"] [SourceQuality "1"] 1. Nf3 d5 2. e3 c6 3. c4 Nf6 4. Nc3 Bg4 5. cxd5 Nxd5 6. d4 e6 7. Be2 Be7 8. O-O O-O 9. h3 Bh5 10. e4 Nf6 11. Bf4 Nbd7 12. Qd2 h6 13. Rad1 Bb4 14. Qe3 Qe7 15. e5 Nh7 16. Bg3 Nb6 17. Bh4 Qd7 18. Ne4 Rfe8 19. a3 Be7 20. Bg3 Nd5 21. Qd2 Bxf3 22. Bxf3 Ng5 23. Nxg5 Bxg5 24. Qd3 Qe7 25. Qe4 Qd8 26. Be2 Be7 27. h4 g6 28. h5 Kh7 29. Rd3 Rg8 30. Rf3 Qe8 31. Bd3 Rd8 32. Kh2 Bg5 33. Qg4 Ne7 34. hxg6+ Nxg6 35. Bh4 1-0 [Event "Dhaka Sheikh Russel op"] [Site "Dhaka"] [Date "2021.10.20"] [Round "2"] [White "Deepan Chakkravarthy, J.."] [Black "Koustav, Chatterjee"] [Result "1/2-1/2"] [ECO "C84"] [WhiteElo "2535"] [BlackElo "2431"] [PlyCount "88"] [EventDate "2021.10.19"] [EventType "swiss"] [EventRounds "9"] [EventCountry "BAN"] [SourceTitle "CBM 204 Extra"] [Source "ChessBase"] [SourceDate "2022.09.12"] [SourceVersion "1"] [SourceVersionDate "2022.09.12"] [SourceQuality "1"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. a4 Bb7 11. axb5 axb5 12. Rxa8 Bxa8 13. Na3 c6 14. Re1 Nbd7 15. Nc2 Re8 16. Ne3 d5 17. Ng4 Nxg4 18. hxg4 Qc7 19. exd5 cxd5 20. Nxe5 Nxe5 21. Bf4 Bf8 22. Bg3 b4 23. d4 bxc3 24. Bxe5 Qc8 25. bxc3 Qxc3 26. Re3 Qb2 27. Re2 Qc3 28. Re3 Qb2 29. Qf3 Rd8 30. Qf5 Qc1+ 31. Kh2 Qc6 32. Bc2 Qg6 33. Rc3 Qxf5 34. Bxf5 Bb7 35. Rc7 Ba6 36. g5 g6 37. Bd7 h6 38. f4 hxg5 39. fxg5 Be7 40. Bf4 Kf8 41. Ra7 Bc8 42. Bxc8 Rxc8 43. Ra5 Rd8 44. Kg3 f6 1/2-1/2 [Event "Dhaka Sheikh Russel op"] [Site "Dhaka"] [Date "2021.10.21"] [Round "3"] [White "Koustav, Chatterjee"] [Black "Visakh, Narayanan Rajeswari"] [Result "1-0"] [ECO "B51"] [WhiteElo "2431"] [BlackElo "2515"] [Annotator "Shahid"] [PlyCount "87"] [EventDate "2021.10.19"] [EventType "swiss"] [EventRounds "9"] [EventCountry "BAN"] [SourceTitle "CBM 204 Extra"] [Source "ChessBase"] [SourceDate "2022.09.12"] [SourceVersion "1"] [SourceVersionDate "2022.09.12"] [SourceQuality "1"] {[%evp 0,87,30,33,46,45,90,46,75,65,43,52,82,65,76,35,62,41,59,54,58,61,61,61,61,61,69,72,64,53,88,66,95,100,129,113,110,113,101,130,145,134,153,153,143,139,125,133,133,134,130,123,145,158,158,148,161,159,159,123,122,129,123,124,118,121,134,134,145,132,134,134,190,185,191,197,197,165,165,165,214,214,229,218,341,341,341,353,354,354]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. a4 Ngf6 5. Nc3 g6 6. a5 Bg7 7. O-O a6 8. Be2 e5 9. d3 O-O 10. Nd2 b5 11. axb6 Nxb6 12. Nc4 Be6 13. Bg5 h6 14. Be3 Kh7 15. Qd2 Nxc4 16. dxc4 Ng4 (16... Ne8 17. Ra3 f5) 17. Bxg4 Bxg4 18. f3 Be6 19. Rfd1 Qb8 20. Qxd6 Qxb2 21. Qd2 Qb7 22. Rdb1 Qc6 23. Nd5 Rfb8 24. Qa5 Bf8 25. Kf2 Rb7 26. Rxb7 Qxb7 27. Nc7 Rb8 28. Nxe6 fxe6 29. Bxc5 Bxc5+ 30. Qxc5 Rc8 31. Qxe5 Rxc4 32. Ra2 Qc8 33. Kg3 Rc5 34. Qd6 a5 35. h4 Rb5 36. Qe7+ Kg8 37. Qf6 Qc7+ 38. Kh3 Kh7 39. Qxe6 Rb1 40. e5 Rh1+ 41. Kg3 Qc3 42. Qd7+ Kh8 43. Qd8+ Kh7 44. Qxa5 1-0 [Event "Dhaka Sheikh Russel op"] [Site "Dhaka"] [Date "2021.10.22"] [Round "4"] [White "Shyam, Sundar M"] [Black "Koustav, Chatterjee"] [Result "1-0"] [ECO "C67"] [WhiteElo "2518"] [BlackElo "2431"] [PlyCount "128"] [EventDate "2021.10.19"] [EventType "swiss"] [EventRounds "9"] [EventCountry "BAN"] [SourceTitle "CBM 204 Extra"] [Source "ChessBase"] [SourceDate "2022.09.12"] [SourceVersion "1"] [SourceVersionDate "2022.09.12"] [SourceQuality "1"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. dxe5 Nxb5 7. a4 Nbd4 8. Nxd4 Nxd4 9. Qxd4 d5 10. Qd3 Qd7 11. Nc3 c6 12. Ne2 Be7 13. f4 Qf5 14. Qc3 Qe4 15. Ng3 Qb4 16. Qf3 Bd7 17. Be3 Bc5 18. c3 Bxe3+ 19. Qxe3 Qb6 20. Qd4 h5 21. h4 Bg4 22. f5 Qxd4+ 23. cxd4 a5 24. Ra3 Kd7 25. Rf4 Ra6 26. Rb3 Kc7 27. Nf1 Rb6 28. Rxb6 Kxb6 29. Ne3 Be2 30. Kf2 Bd3 31. Kg3 Kc7 32. f6 Rg8 33. fxg7 Rxg7+ 34. Kf2 Be4 35. g4 hxg4 36. Nxg4 b5 37. h5 bxa4 38. h6 Rh7 39. Rf6 Kb6 40. Ke3 Kb5 41. Nf2 c5 42. Nxe4 cxd4+ 43. Kxd4 dxe4 44. Kxe4 Kc4 45. Rb6 Kc5 46. Ra6 Kb5 47. Rd6 a3 48. bxa3 Ka4 49. Ra6 Kb5 50. Rd6 Ka4 51. Rb6 Kxa3 52. Kf5 a4 53. Kg5 Ka2 54. Kh5 a3 55. Rb8 Ka1 56. Rb7 Rh8 57. Rxf7 Re8 58. Rf5 a2 59. h7 Kb2 60. Rf2+ Kb3 61. Rxa2 Rxe5+ 62. Kg4 Re4+ 63. Kf5 Rh4 64. Ra7 Rh1 1-0 [Event "Dhaka Sheikh Russel op"] [Site "Dhaka"] [Date "2021.10.23"] [Round "5"] [White "Pranav, V.."] [Black "Koustav, Chatterjee"] [Result "0-1"] [ECO "B90"] [WhiteElo "2489"] [BlackElo "2431"] [PlyCount "148"] [EventDate "2021.10.19"] [EventType "swiss"] [EventRounds "9"] [EventCountry "BAN"] [SourceTitle "CBM 204 Extra"] [Source "ChessBase"] [SourceDate "2022.09.12"] [SourceVersion "1"] [SourceVersionDate "2022.09.12"] [SourceQuality "1"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. Qd2 Nbd7 9. f3 h5 10. Be2 Be7 11. O-O b5 12. a4 b4 13. Nd5 Bxd5 14. exd5 Nb6 15. Bxb6 Qxb6+ 16. Kh1 h4 17. Bd3 Nh5 18. Qf2 Qxf2 19. Rxf2 Nf4 20. Bc4 f5 21. a5 Kf7 22. Ra4 Rhb8 23. Nc1 Bd8 24. g3 hxg3 25. hxg3 Nh5 26. Kg2 Rc8 27. b3 Rc5 28. Nd3 Rxa5 29. Rxb4 Ra7 30. Rb8 Bf6 31. Rb6 Rd7 32. Rxa6 Rxa6 33. Bxa6 Ra7 34. Bc8 g6 35. Nb4 Rc7 36. Ba6 Rc3 37. Bd3 Bd8 38. Rf1 Bb6 39. Na2 Rc7 40. Bc4 Bc5 41. Nc3 Rc8 42. Rb1 Ke7 43. Nb5 Ra8 44. b4 Be3 45. c3 f4 46. g4 Ng3 47. Bb3 e4 48. c4 Rh8 49. fxe4 Nxe4 50. Ra1 Ng5 51. Rf1 Rh3 52. Bd1 Rg3+ 53. Kh2 Rh3+ 54. Kg2 Rg3+ 55. Kh2 Ne4 56. c5 dxc5 57. bxc5 Bxc5 58. d6+ Kd8 59. Re1 Nf2 60. Rf1 Rh3+ 61. Kg2 Rg3+ 62. Kh2 Rd3 63. Be2 Rd2 64. Nc3 Ne4 65. Rd1 Rc2 66. Nxe4 Rxe2+ 67. Kh3 Rxe4 68. Kh4 f3 69. Rd5 f2 70. Kg3 f1=Q 71. Kh2 Qg1+ 72. Kh3 Qxg4+ 73. Kh2 Re2+ 74. Kh1 Qg2# 0-1 [Event "Dhaka Sheikh Russel op"] [Site "Dhaka"] [Date "2021.10.24"] [Round "6"] [White "Koustav, Chatterjee"] [Black "Krasenkow, Michal"] [Result "1/2-1/2"] [ECO "B31"] [WhiteElo "2431"] [BlackElo "2578"] [PlyCount "109"] [EventDate "2021.10.19"] [EventType "swiss"] [EventRounds "9"] [EventCountry "BAN"] [SourceTitle "CBM 204 Extra"] [Source "ChessBase"] [SourceDate "2022.09.12"] [SourceVersion "1"] [SourceVersionDate "2022.09.12"] [SourceQuality "1"] 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 e5 6. d4 cxd4 7. cxd4 exd4 8. Bf4 Nge7 9. Bd6 O-O 10. Nbd2 b6 11. Nb3 Bb7 12. Re1 Re8 13. Qd2 Nc8 14. Bf4 Ne5 15. Nxe5 Bxe5 16. Bxe5 Rxe5 17. Bd3 Nd6 18. f3 Rc8 19. Qb4 Qe7 20. Rac1 Rxc1 21. Rxc1 f5 22. exf5 gxf5 23. Qxd4 Rd5 24. Bc4 Nxc4 25. Qxc4 Qe3+ 26. Kf1 Bc6 27. Re1 Bb5 28. Rxe3 Bxc4+ 29. Ke1 a5 30. f4 Rb5 31. Kd2 Rb4 32. g3 d5 33. Kc2 Bxb3+ 34. axb3 Re4 35. Rc3 Re2+ 36. Kd3 Rxh2 37. Kd4 Rxb2 38. Kxd5 Re2 39. Rc8+ Kf7 40. Rb8 Kg6 41. Rg8+ Kh6 42. Rg5 Re4 43. Rxf5 Rb4 44. Ke6 Rxb3 45. g4 Kg7 46. Rf7+ Kg8 47. Ra7 Re3+ 48. Kf6 Re8 49. f5 Rf8+ 50. Ke6 Re8+ 51. Kf6 Rb8 52. g5 b5 53. g6 Rb6+ 54. Kg5 hxg6 55. f6 1/2-1/2 [Event "Dhaka Sheikh Russel op"] [Site "Dhaka"] [Date "2021.10.25"] [Round "7"] [White "Vignesh, NR."] [Black "Koustav, Chatterjee"] [Result "0-1"] [ECO "E32"] [WhiteElo "2453"] [BlackElo "2431"] [PlyCount "122"] [EventDate "2021.10.19"] [EventType "swiss"] [EventRounds "9"] [EventCountry "BAN"] [SourceTitle "CBM 204 Extra"] [Source "ChessBase"] [SourceDate "2022.09.12"] [SourceVersion "1"] [SourceVersionDate "2022.09.12"] [SourceQuality "1"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. Nf3 d5 6. Bg5 dxc4 7. e4 h6 8. Bxf6 Qxf6 9. Bxc4 c5 10. e5 Qe7 11. O-O cxd4 12. Nb5 a6 13. Nbxd4 b5 14. Bd3 Bb7 15. Bh7+ Kh8 16. Be4 Ra7 17. Rac1 Ba5 18. Bxb7 Rxb7 19. Nc6 Nxc6 20. Qxc6 Bb6 21. Rfd1 Rfb8 22. g3 Kg8 23. Kg2 a5 24. Rc3 Qb4 25. Rb3 Qc5 26. Qxc5 Bxc5 27. Rbd3 Kf8 28. Rd8+ Rxd8 29. Rxd8+ Ke7 30. Rc8 Ba7 31. Rc6 Kd7 32. Rd6+ Ke7 33. Ra6 Bb6 34. Ra8 Kd7 35. Kf1 Kc6 36. Rg8 g6 37. Rh8 Kd5 38. Ke2 a4 39. Rxh6 Rc7 40. Kd3 Rc1 41. Rh7 Rd1+ 42. Kc2 Rf1 43. Rxf7 Rxf2+ 44. Kc3 Bd4+ 45. Kd3 Bc5 46. Ng5 Rxb2 47. Ne4 Bb4 48. Rf4 a3 49. Nf6+ Kc6 50. Ng4 Rd2+ 51. Ke3 Rxa2 52. Rxb4 Rb2 53. Rd4 a2 54. Rd6+ Kb7 55. Rd7+ Kb6 56. Rd6+ Ka5 57. Rd8 Rb3+ 58. Kd2 Ra3 59. Ra8+ Kb4 60. Rxa3 Kxa3 61. Ne3 Kb2 0-1 [Event "Dhaka Sheikh Russel op"] [Site "Dhaka"] [Date "2021.10.26"] [Round "8"] [White "Koustav, Chatterjee"] [Black "Asadli, Vugar Afgan Oglu"] [Result "1/2-1/2"] [ECO "B51"] [WhiteElo "2431"] [BlackElo "2585"] [PlyCount "79"] [EventDate "2021.10.19"] [EventType "swiss"] [EventRounds "9"] [EventCountry "BAN"] [SourceTitle "EXT 2023"] [Source "ChessBase"] [SourceDate "2022.10.05"] [SourceVersion "1"] [SourceVersionDate "2022.10.05"] [SourceQuality "1"] 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. O-O Ngf6 5. Re1 a6 6. Bd3 Ne5 7. Nxe5 dxe5 8. a4 b6 9. Na3 e6 10. b3 h5 11. Bb2 Qc7 12. Nc4 Nd7 13. Qf3 Be7 14. c3 Bb7 15. Rac1 g5 16. Qe2 Nf8 17. Bb1 Ng6 18. d4 f6 19. b4 Rd8 20. g3 h4 21. bxc5 bxc5 22. dxe5 hxg3 23. hxg3 Nxe5 24. Nxe5 Qxe5 25. Kg2 c4 26. Rh1 Rxh1 27. Rxh1 f5 28. Rh7 Rd7 29. Bc1 g4 30. Qxc4 Bf6 31. Rxd7 Kxd7 32. Kf1 fxe4 33. Qb3 Bc6 34. Bf4 Qd5 35. c4 Qd4 36. Be3 Qa1 37. Qd1+ Kc7 38. Bc2 Qc3 39. Qxg4 Qxc4+ 40. Kg1 1/2-1/2 [Event "Dhaka Sheikh Russel op"] [Site "Dhaka"] [Date "2021.10.27"] [Round "9"] [White "Stany, George Anthony"] [Black "Koustav, Chatterjee"] [Result "1/2-1/2"] [ECO "C90"] [WhiteElo "2522"] [BlackElo "2431"] [PlyCount "44"] [EventDate "2021.10.19"] [EventType "swiss"] [EventRounds "9"] [EventCountry "BAN"] [SourceTitle "EXT 2023"] [Source "ChessBase"] [SourceDate "2022.10.05"] [SourceVersion "1"] [SourceVersionDate "2022.10.05"] [SourceQuality "1"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. c3 Be7 6. O-O O-O 7. Re1 a6 8. Ba4 b5 9. Bb3 h6 10. a4 Bd7 11. d4 Re8 12. d5 Na5 13. Bc2 c6 14. dxc6 Bxc6 15. Nbd2 Nc4 16. Nxc4 bxc4 17. Qe2 Rc8 18. Rd1 Qb6 19. Nd2 d5 20. exd5 Bxd5 21. Nf1 Ba8 22. Bf5 Qb7 1/2-1/2 [Event "Asian Continental op 19th"] [Site "Delhi"] [Date "2022.10.27"] [Round "2"] [White "Koustav, Chatterjee"] [Black "Krishna Teja, N.."] [Result "1-0"] [ECO "D02"] [WhiteElo "2496"] [BlackElo "2359"] [Annotator "Shahid"] [PlyCount "43"] [EventDate "2022.10.26"] [EventType "swiss"] [EventRounds "9"] [EventCountry "IND"] [SourceTitle "Mega2023 Update 01"] [Source "Chessbase"] [SourceDate "2022.11.22"] [SourceVersion "1"] [SourceVersionDate "2022.11.22"] [SourceQuality "1"] 1. d4 Nf6 2. Nf3 e6 3. Bf4 d5 4. e3 Bd6 5. Nbd2 O-O 6. c3 c5 7. Bd3 Qc7 8. Bxd6 Qxd6 9. Ne5 b6 10. f4 Ba6 11. Bc2 Nfd7 12. Qh5 f5 13. g4 Nf6 14. Qh4 cxd4 15. exd4 Ne4 16. Rg1 Qd8 17. Qh3 Bc8 18. gxf5 exf5 19. O-O-O a5 20. Rxg7+ Kxg7 21. Rg1+ Kh8 (21... Kf6 22. Qh6+ Ke7 23. Rg7+ Ke8 24. Qh5+ Rf7 25. Qxf7#) (21... Ng5 22. Rxg5+ $18) 22. Qh6 1-0 [Event "Asian Continental op 19th"] [Site "Delhi"] [Date "2022.10.28"] [Round "3"] [White "Karthikeyan, Murali"] [Black "Koustav, Chatterjee"] [Result "1/2-1/2"] [ECO "C52"] [WhiteElo "2623"] [BlackElo "2496"] [Annotator "Shahid"] [PlyCount "103"] [EventDate "2022.10.26"] [EventType "swiss"] [EventRounds "9"] [EventCountry "IND"] [SourceTitle "Mega2023 Update 01"] [Source "Chessbase"] [SourceDate "2022.11.22"] [SourceVersion "1"] [SourceVersionDate "2022.11.22"] [SourceQuality "1"] {[%evp 0,103,30,33,19,19,25,16,7,-50,-26,-26,-33,-2,9,10,21,-17,-7,-38,0,-5,6,-19,-31,-32,14,14,17,21,50,-2,21,7,56,50,60,38,38,51,46,32,28,20,63,-6,16,0,-28,-32,-14,-16,-25,-5,0,-79,-82,-48,-48,-48,0,-76,-61,-80,-86,-41,-74,-55,-55,-27,-44,-37,0,0,0,-74,-123,-115,-99,-106,-53,-174,-74,-87,-61,-67,0,-84,0,0,0,0,113,125,293,338,315,186,187,-109,-109,-109,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 d6 7. Qb3 Qd7 8. O-O Bb6 9. Nbd2 Na5 10. Qc2 f6 11. a4 Ne7 12. Ba2 Ng6 13. Nc4 Nxc4 14. Bxc4 a6 15. Rb1 Qe7 16. Kh1 Be6 17. Bxe6 Qxe6 18. a5 Ba7 19. Rxb7 Qc4 20. Nd2 Qc6 21. Qb3 Bb6 22. dxe5 Nxe5 23. f4 Nd7 24. axb6 Qxb7 25. Qe6+ Kd8 26. Nc4 Qc6 27. e5 Re8 28. Qf7 Nxb6 29. Nxb6 Qxb6 30. Qxg7 fxe5 31. fxe5 dxe5 32. Qxh7 Kc8 33. Qe4 Rb8 34. Be3 Qe6 35. h4 Rh8 36. Bg5 Rb5 37. Kh2 Qd5 38. Qg4+ Qd7 39. Qa4 a5 40. Rd1 Rd5 (40... Qc6) 41. Qe4 c6 42. Rb1 Rc5 43. c4 a4 44. Rb4 Ra5 45. c5 a3 46. Rb6 a2 $4 (46... Rxc5 47. Qa4 Kc7 48. Ra6 Rb5) 47. Rxc6+ $18 Kb8 48. Qxe5+ $2 (48. Qb4+ $18) 48... Kb7 49. Rb6+ Ka7 50. Rd6 Qxd6 51. Qxd6 a1=Q 52. Qb6+ 1/2-1/2 [Event "Asian Continental op 19th"] [Site "Delhi"] [Date "2022.10.29"] [Round "4"] [White "Koustav, Chatterjee"] [Black "Jumabayev, Rinat"] [Result "1-0"] [ECO "D11"] [WhiteElo "2496"] [BlackElo "2620"] [Annotator "Shahid"] [PlyCount "63"] [EventDate "2022.10.26"] [EventType "swiss"] [EventRounds "9"] [EventCountry "IND"] [SourceTitle "Mega2023 Update 01"] [Source "Chessbase"] [SourceDate "2022.11.22"] [SourceVersion "1"] [SourceVersionDate "2022.11.22"] [SourceQuality "1"] {[%evp 0,63,22,27,20,12,31,-4,32,-19,-6,12,41,-17,11,13,37,28,27,35,55,78,48,5,29,0,0,20,33,49,47,49,7,7,47,47,90,107,99,110,110,138,119,131,125,58,58,0,0,0,0,0,0,0,0,-312,-328,-278,-164,-146,-146,-211,-44,-48,347,354]} 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. g3 dxc4 5. Bg2 g6 6. a4 Bg7 7. Na3 c5 8. O-O Nc6 9. dxc5 Qa5 10. Nd4 O-O 11. Nxc6 bxc6 12. Bxc6 Rb8 13. Bf4 Qxc5 14. Bxb8 Qxc6 15. Bxa7 Bh3 16. f3 Ra8 17. Nb5 Rxa7 18. Nxa7 Qb6+ 19. Rf2 Qxa7 20. Qd8+ Bf8 21. a5 Nd7 22. g4 e6 23. e3 Qxe3 24. Qxd7 Bc5 25. Qd8+ Kg7 26. Qh4 c3 27. Qxh3 $2 (27. bxc3 Qxc3 28. Rb1 Qxf3 29. Qg3) 27... Qxf2+ $19 28. Kh1 cxb2 (28... Qxb2) 29. Rb1 Qc2 30. Qf1 Bd6 (30... Be3) 31. Qg1 Bxh2 $4 32. Qd4+ $18 1-0 [Event "Asian Continental op 19th"] [Site "Delhi"] [Date "2022.10.30"] [Round "5"] [White "Harsha, Bharathakoti"] [Black "Koustav, Chatterjee"] [Result "1-0"] [ECO "C45"] [WhiteElo "2582"] [BlackElo "2496"] [PlyCount "97"] [EventDate "2022.10.26"] [EventType "swiss"] [EventRounds "9"] [EventCountry "IND"] [SourceTitle "Mega2023 Update 01"] [Source "Chessbase"] [SourceDate "2022.11.22"] [SourceVersion "1"] [SourceVersionDate "2022.11.22"] [SourceQuality "1"] 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. h4 Qe6 9. Nd2 Nb4 10. Nf3 Ba6 11. c4 d5 12. a3 Bxc4 13. Qd1 Bxf1 14. Kxf1 Na6 15. b4 Be7 16. Bg5 Bxg5 17. Nxg5 Qg6 18. e6 f6 19. Nf3 O-O 20. Rc1 Rae8 21. Rxc6 Nb8 22. Rxc7 Rxe6 23. h5 Qe8 24. Qxd5 Rf7 25. Rc1 Rd7 26. Qb3 Kf8 27. Rh4 Red6 28. Re1 Qf7 29. Qxf7+ Kxf7 30. Rf4 Re7 31. Rxe7+ Kxe7 32. Rg4 Kf7 33. Rc4 Nd7 34. Ke2 Ke6 35. Rc7 a6 36. Ke3 Kf5 37. Nd4+ Kg5 38. Rc6 Rxc6 39. Nxc6 Kxh5 40. a4 g5 41. Kd4 Kg6 42. a5 h5 43. Kc4 h4 44. b5 g4 45. bxa6 h3 46. gxh3 gxh3 47. a7 h2 48. a8=Q h1=Q 49. Ne7+ 1-0 [Event "Asian Continental op 19th"] [Site "Delhi"] [Date "2022.10.31"] [Round "6"] [White "Koustav, Chatterjee"] [Black "Viani, Antonio Dcunha"] [Result "1-0"] [ECO "D02"] [WhiteElo "2496"] [BlackElo "2342"] [PlyCount "129"] [EventDate "2022.10.26"] [EventType "swiss"] [EventRounds "9"] [EventCountry "IND"] [SourceTitle "Mega2023 Update 01"] [Source "Chessbase"] [SourceDate "2022.11.22"] [SourceVersion "1"] [SourceVersionDate "2022.11.22"] [SourceQuality "1"] 1. d4 d5 2. Nf3 Nf6 3. c3 c5 4. dxc5 e6 5. Be3 a5 6. c4 Nbd7 7. Nc3 Bxc5 8. Bxc5 Nxc5 9. cxd5 exd5 10. e3 O-O 11. Rc1 Ne6 12. Be2 Qb6 13. Rc2 Rd8 14. Rd2 Nc5 15. O-O Be6 16. Nd4 Nfe4 17. Rc2 Rac8 18. Nxe6 fxe6 19. Nb5 Nd6 20. Nd4 e5 21. Nb3 Nxb3 22. Qxd5+ Kf8 23. Rxc8 Nxc8 24. Qf3+ Qf6 25. axb3 Rd2 26. Qxb7 Nd6 27. Qa8+ Kf7 28. Bh5+ g6 29. Bf3 Rxb2 30. Qa7+ Qe7 31. Bd5+ Kf6 32. Qxa5 e4 33. f3 Kg7 34. fxe4 Kh6 35. Qc3 Re2 36. Qd3 Rb2 37. Qc3 Re2 38. Qd3 Rb2 39. Qd4 Re2 40. Qf6 Qxf6 41. Rxf6 Ne8 42. Rf3 Nd6 43. Kf1 Rc2 44. Rf2 Rc1+ 45. Ke2 Rc2+ 46. Kf3 Rc3 47. Kf4 Nc8 48. Rf3 Rc2 49. Be6 Na7 50. g4 g5+ 51. Ke5 Nc6+ 52. Kd6 Nb4 53. Bc4 Rd2+ 54. Kc5 Nd3+ 55. Bxd3 Rxd3 56. b4 Rc3+ 57. Kd4 Rb3 58. Kc4 Rb1 59. e5 Rc1+ 60. Kb5 Rc8 61. Rf6+ Kg7 62. Rc6 Rd8 63. Kc5 Rd3 64. b5 Rxe3 65. Kd6 1-0 [Event "Asian Continental op 19th"] [Site "Delhi"] [Date "2022.11.01"] [Round "7"] [White "Aravindh, Chithambaram VR"] [Black "Koustav, Chatterjee"] [Result "0-1"] [ECO "C45"] [WhiteElo "2625"] [BlackElo "2496"] [Annotator "Shahid"] [PlyCount "146"] [EventDate "2022.10.26"] [EventType "swiss"] [EventRounds "9"] [EventCountry "IND"] [SourceTitle "Mega2023 Update 01"] [Source "Chessbase"] [SourceDate "2022.11.22"] [SourceVersion "1"] [SourceVersionDate "2022.11.22"] [SourceQuality "1"] {[%evp 0,146,22,22,19,18,18,2,-3,-3,0,0,0,-24,16,-22,-15,-6,-12,-13,-13,-13,-15,-25,-16,-1,-12,-10,-9,-10,47,48,70,62,74,78,79,57,67,73,83,30,31,29,36,13,18,5,14,14,12,3,33,38,28,31,44,41,51,59,63,63,60,63,55,56,57,26,55,60,60,37,60,53,38,34,33,29,48,45,37,-5,11,20,0,6,52,6,57,88,108,84,93,78,85,85,85,85,85,91,111,58,45,55,61,-9,0,-158,-194,-215,-222,-239,-242,-263,-215,-230,-174,-157,-160,-163,-163,-163,-189,-249,-229,-251,-220,-247,-248,-315,-311,-304,-276,-274,-290,-296,-263,-350,-246,-242,-54,-381,-370,-421,-422,-431,-435,-433,-444]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Nd2 d5 7. exd5 cxd5 8. Bb5+ Bd7 9. Bxd7+ Qxd7 10. O-O Be7 11. b3 O-O 12. Bb2 Qf5 13. Re1 Bc5 14. Qf3 Qxc2 15. Bxf6 Qxd2 16. Bc3 Qc2 17. Re2 Qg6 18. Qxd5 Bb6 19. Rae1 h6 20. Qe4 Qxe4 21. Rxe4 Rad8 22. Bb4 c5 23. Bc3 Rd3 24. Rc1 Rfd8 25. Kf1 Rd1+ 26. Rxd1 Rxd1+ 27. Re1 Rd3 28. Rc1 f5 29. Ke2 Rd7 30. Bd2 Kf7 31. Be3 Rd5 32. Rc4 Ke6 33. h3 h5 34. Rc3 g6 35. Rc1 Kf7 36. Rc4 Ke6 37. f3 Kd6 38. g4 hxg4 39. fxg4 Ke6 40. g5 Re5 41. Kf3 Kd5 42. Rh4 Re6 43. Bd2 Re4 44. Rh6 c4 45. bxc4+ Rxc4 46. Rxg6 Rc2 47. Rg7 Ke6 48. Bb4 Rxa2 49. Re7+ Kd5 50. h4 Rf2+ 51. Kg3 f4+ 52. Kh3 f3 53. Rf7 $2 (53. Be1 Re2 54. Rxe2 fxe2 55. g6 Ke6 56. Kg4 (56. h5 $2 a5 $19) (56. g7 Kf7 $11) 56... a5) 53... Rf1 54. Ba5 Bd4 55. Rd7+ Ke4 56. Re7+ Kf5 57. Be1 f2 58. Bxf2 Rxf2 59. Rf7+ Kg6 60. Rd7 Rf4 61. Kg3 Be5 62. Re7 Kf5 63. Kh3 a5 64. Ra7 Rf3+ 65. Kg2 Rg3+ 66. Kf1 Bc3 67. Rc7 Kg4 68. Kf2 Bd4+ 69. Ke2 Kxh4 70. Rd7 Bc3 71. Rc7 Kxg5 72. Kf2 Bd4+ 73. Ke2 Kf4 0-1 [Event "Asian Continental op 19th"] [Site "Delhi"] [Date "2022.11.02"] [Round "8"] [White "Koustav, Chatterjee"] [Black "Praggnanandhaa, Rameshbabu"] [Result "0-1"] [ECO "E08"] [WhiteElo "2496"] [BlackElo "2687"] [PlyCount "106"] [EventDate "2022.10.26"] [EventType "swiss"] [EventRounds "9"] [EventCountry "IND"] [SourceTitle "Mega2023 Update 01"] [Source "Chessbase"] [SourceDate "2022.11.22"] [SourceVersion "1"] [SourceVersionDate "2022.11.22"] [SourceQuality "1"] 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 a5 6. Bg2 O-O 7. Qc2 Be7 8. O-O c6 9. Bf4 Nbd7 10. Rd1 a4 11. Ne5 h6 12. a3 Qb6 13. Nc3 Qa6 14. cxd5 exd5 15. e4 dxe4 16. Nxe4 Nxe4 17. Nxd7 Bxd7 18. Bxe4 Be6 19. d5 cxd5 20. Bxd5 Rac8 21. Qe4 Bxd5 22. Rxd5 Bf6 23. Rd6 Rc6 24. Rxc6 bxc6 25. Rc1 Rd8 26. Qc4 Qb5 27. Qxb5 cxb5 28. Rc2 Rd3 29. Kf1 Rb3 30. Bc1 g5 31. h3 Kg7 32. Ke2 h5 33. f3 Be5 34. g4 Kg6 35. Rc5 f6 36. gxh5+ Kxh5 37. f4 Bd4 38. Rd5 Bxb2 39. Be3 Bxa3 40. fxg5 Kg6 41. h4 Bb2 42. Rd6 a3 43. Ra6 Rb4 44. h5+ Kxh5 45. gxf6 Kg6 46. Kd2 Rc4 47. Kd3 Rc3+ 48. Ke2 b4 49. Ra7 Rc8 50. f7 b3 51. Bc5 a2 52. f8=Q Rxf8 53. Bxf8 Bf6 0-1 [Event "Asian Continental op 19th"] [Site "Delhi"] [Date "2022.11.03"] [Round "9"] [White "Sethuraman, SP."] [Black "Koustav, Chatterjee"] [Result "1-0"] [ECO "C54"] [WhiteElo "2645"] [BlackElo "2496"] [PlyCount "81"] [EventDate "2022.10.26"] [EventType "swiss"] [EventRounds "9"] [EventCountry "IND"] [SourceTitle "Mega2023 Update 01"] [Source "Chessbase"] [SourceDate "2022.11.22"] [SourceVersion "1"] [SourceVersionDate "2022.11.22"] [SourceQuality "1"] 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. O-O d6 6. c3 a5 7. Bg5 h6 8. Bh4 Ba7 9. Nbd2 Bd7 10. Re1 g5 11. Bg3 h5 12. h4 Nh7 13. d4 g4 14. Nh2 Qf6 15. Bb5 O-O-O 16. Nc4 exd4 17. Bxc6 Bxc6 18. Nxa5 Bb5 19. a4 Ba6 20. b4 Bb6 21. Nb3 Bc4 22. a5 Ba7 23. Nxd4 d5 24. e5 Qa6 25. e6 Nf6 26. Be5 Ne4 27. e7 Rde8 28. Bxh8 Rxh8 29. Nxg4 Re8 30. Ne5 Nxc3 31. Qxh5 Bxd4 32. Qg4+ Qe6 33. Qxd4 Ne2+ 34. Rxe2 Bxe2 35. Re1 Bb5 36. Qa7 Qa6 37. Qc5 f6 38. Rc1 Bc6 39. Nxc6 Qxc6 40. Qxc6 bxc6 41. Re1 1-0 [Event "MPL 59th Senior National Chess Championship - 2022"] [Site "followchess.com"] [Date "2022.12.22"] [Round "1.8"] [White "Chandar Raju"] [Black "Koustav Chatterjee"] [Result "0-1"] [ECO "B42"] [WhiteElo "1918"] [BlackElo "2508"] [PlyCount "64"] [EventDate "2022.??.??"] 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Ba7 7. Qg4 g6 8. Nc3 Nc6 9. Bd2 d6 10. Qg3 Qc7 11. O-O-O Bd7 12. Be2 f6 13. Be1 Bb8 14. f4 Nge7 15. Qh4 O-O 16. g4 b5 17. f5 Ba7 18. fxe6 Bxe6 19. Rf1 g5 20. Qg3 Ne5 21. Nd4 Bxd4 22. Rxd4 Rac8 23. h4 N7c6 24. Rd2 b4 25. Nd5 Bxd5 26. exd5 Nd4 27. Bd1 Qc4 28. Qg1 b3 29. axb3 Nxb3+ 30. Kb1 Qa4 31. c3 Qa1+ 32. Kc2 Rb8 0-1 [Event "MPL 59th Senior National Chess Championship - 2022"] [Site "?"] [Date "2022.12.23"] [Round "2"] [Board "7"] [White "Koustav, Chatterjee"] [Black "Gandhi, Anish"] [Result "1-0"] [ECO "A11"] [WhiteElo "2508"] [BlackElo "2197"] [PlyCount "69"] [EventDate "2022.12.22"] [EventRounds "13"] [EventCountry "IND"] 1. c4 c6 2. Nf3 Nf6 3. g3 d5 4. Bg2 g6 5. b3 Bg7 6. Bb2 O-O 7. O-O a5 8. d3 Na6 9. a3 b5 10. Qc2 Qb6 11. cxb5 cxb5 12. Bd4 Qb7 13. Qb2 b4 14. e4 dxe4 15. dxe4 Rd8 16. Nbd2 Bd7 17. Nc4 Bb5 18. Nxa5 Qc7 19. Nc4 Nc5 20. axb4 Nxb3 21. Qxb3 Rxa1 22. Rxa1 Qxc4 23. Qb2 Qd3 24. Re1 Rc8 25. Bf1 Qxf3 26. Bxb5 Nxe4 27. Bxg7 Ng5 28. Bf1 Qf5 29. Bh6 Nf3+ 30. Kh1 e5 31. Rc1 Rd8 32. Be3 Qh5 33. h3 f5 34. Qb3+ Kh8 35. Qf7 1-0 [Event "MPL 59th Senior National Chess Championship - 2022"] [Site "?"] [Date "2022.12.24"] [Round "3.5"] [Board "5"] [White "Srihari, L.."] [Black "Koustav, Chatterjee"] [Result "0-1"] [ECO "C54"] [WhiteElo "2356"] [BlackElo "2508"] [PlyCount "108"] [EventDate "2022.12.22"] [EventRounds "13"] [EventCountry "IND"] {[%evp 0,108,34,20,25,27,25,31,21,17,20,26,-18,-1,0,32,33,20,35,33,105,20,79,-22,-24,-46,-46,-52,6,-4,34,26,1,4,9,12,18,12,12,1,-2,0,33,8,7,-15,-17,-20,-8,-32,-39,-38,-30,-23,-37,-28,-51,-100,-99,-78,-86,-77,-70,-116,-114,-171,-136,-124,-86,-101,-106,-100,-86,-86,-74,-75,-80,-84,-93,-115,-118,-137,-149,-180,-181,-163,-190,-190,-143,-143,-167,-252,-222,-635,-708,-697,-788,-807,-898,-1294,-1363,-1387,-1381,-1406,-1090,-1370,-1500,-2460,-2460,-2448,-2676]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 O-O 6. O-O d5 7. exd5 Nxd5 8. Re1 Bg4 9. h3 Bh5 10. Nbd2 Nb6 11. Bb3 Qxd3 12. Nxe5 Qf5 13. Nef3 Rad8 14. Qe2 Nd5 15. Qe4 Qxe4 16. Nxe4 Bb6 17. g4 Bg6 18. Bg5 f6 19. Rad1 Bf7 20. Bc1 Nde7 21. Bxf7+ Kxf7 22. b4 Ng6 23. Kg2 h6 24. Rxd8 Rxd8 25. Be3 Bxe3 26. Rxe3 a5 27. b5 Nce5 28. Nd4 Nf4+ 29. Kh2 b6 30. Nd2 g5 31. N2b3 a4 32. Na1 Nd5 33. Rg3 Nxc3 34. Nc6 Nxc6 35. Rxc3 Ne5 36. Rxc7+ (36. Nc2) 36... Rd7 37. Rxd7+ Nxd7 $19 38. Nc2 Ke6 39. Ne3 Kd6 40. Kg3 (40. Nf5+ Kc5 41. Nxh6 Kb4 $1 $19) 40... Kc5 41. Kf3 Kxb5 42. a3 Ne5+ 43. Ke4 Nc4 44. Nc2 Kc5 45. f4 b5 46. f5 Nxa3 $1 47. Nxa3 b4 48. Nc2 b3 49. Kd3 (49. Na3 Kb4 50. Kd5 (50. Nb1 a3) 50... Kxa3) 49... bxc2 50. Kxc2 Kd4 51. Kb2 Ke3 52. Ka3 Kf3 53. Kxa4 Kg3 54. Kb5 Kxh3 0-1 [Event "MPL 59th Senior National Chess Championship - 2022"] [Site "?"] [Date "2022.12.25"] [Round "4.4"] [Board "4"] [White "Koustav, Chatterjee"] [Black "Nitin, S.."] [Result "1-0"] [ECO "E62"] [WhiteElo "2508"] [BlackElo "2372"] [Annotator "Shahid"] [PlyCount "85"] [EventDate "2022.12.22"] [EventRounds "13"] [EventCountry "IND"] {[%evp 0,85,30,14,20,-10,36,23,26,9,19,8,25,22,42,6,33,35,52,25,39,44,9,4,9,13,13,10,8,14,19,25,39,42,27,16,24,10,23,7,24,-8,-7,-16,77,58,26,17,25,10,76,20,46,47,39,92,101,72,105,102,112,108,146,145,134,139,151,168,125,121,157,162,174,191,218,117,211,194,252,298,388,283,465,498,596,614,601,388]} 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 O-O 5. c4 d6 6. Nc3 c6 7. e4 Be6 8. Qd3 Na6 9. O-O Bg4 10. Be3 Nd7 11. h3 Bxf3 12. Bxf3 c5 13. Rfd1 cxd4 14. Bxd4 Ne5 15. Qe2 Qc8 16. Nd5 Re8 (16... Nxf3+ 17. Qxf3 Re8) 17. Bxe5 Bxe5 18. h4 Nc5 19. h5 Qd8 20. Kg2 Ne6 21. Qe3 Nf8 22. Rab1 e6 23. Nb4 Qf6 24. b3 a5 25. Nc2 a4 26. b4 Rac8 27. Be2 Qe7 28. Nd4 d5 $2 (28... Bxd4 29. Qxd4 (29. Rxd4 e5 30. Rd5 Ne6) 29... Red8) 29. c5 dxe4 30. Qxe4 Bg7 31. Nb5 Red8 32. Bf3 Rb8 33. Rxd8 Qxd8 34. Rd1 Qe7 35. Qc2 e5 36. Bd5 Ne6 37. hxg6 hxg6 38. Qxa4 Ng5 39. Qa7 Rd8 40. c6 Qxb4 41. cxb7 Rxd5 42. b8=Q+ Bf8 43. Nd4 $1 (43. Rxd5 $4 Qe4+ $11) 1-0 [Event "MPL 59th Senior National Chess Championship - 2022"] [Site "?"] [Date "2022.12.26"] [Round "5.1"] [Board "1"] [White "Gupta, Abhijeet"] [Black "Koustav, Chatterjee"] [Result "1-0"] [ECO "E20"] [WhiteElo "2601"] [BlackElo "2508"] [PlyCount "63"] [EventDate "2022.12.22"] [EventRounds "13"] [EventCountry "IND"] {[%evp 0,63,23,27,30,12,12,12,33,-7,-8,-7,2,-5,-2,-9,-11,-17,-12,-37,-21,-29,6,-12,6,-10,80,80,68,93,79,71,84,22,76,53,47,74,104,74,79,71,94,98,123,99,177,169,261,270,267,259,278,278,336,338,331,301,350,398,464,481,481,491,491,488]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. g3 O-O 5. Bg2 d5 6. Nf3 dxc4 7. O-O Nc6 8. Re1 Rb8 9. e4 h6 10. a3 Bxc3 11. bxc3 b5 12. Rb1 Ne7 13. a4 a6 14. Ba3 Re8 15. Ne5 Bd7 16. Rb2 Nc6 17. f4 bxa4 18. Nxc4 Na7 19. Bc5 Nb5 20. Rc2 Bc6 21. Na5 Ba8 22. c4 c6 23. Qd2 Nc7 24. e5 Nd7 25. Bd6 Qc8 26. Nxc6 Bxc6 27. Bxc6 Rd8 28. d5 Rb6 29. Qa5 Qb8 30. c5 Rb1 31. Rce2 Rxe1+ 32. Rxe1 1-0 [Event "MPL 59th Senior National Chess Championship - 2022"] [Site "?"] [Date "2022.12.27"] [Round "6.3"] [Board "3"] [White "Koustav, Chatterjee"] [Black "Aronyak, Ghosh"] [Result "1/2-1/2"] [ECO "A47"] [WhiteElo "2508"] [BlackElo "2521"] [PlyCount "40"] [EventDate "2022.12.22"] [EventRounds "13"] [EventCountry "IND"] {[%evp 0,40,19,34,29,22,32,25,49,38,36,26,26,12,14,11,34,30,42,22,4,22,18,-3,5,-9,-11,-11,-9,-24,-18,-21,-12,-15,-9,-20,-19,-18,-17,-20,-18,-22,-9]} 1. d4 Nf6 2. Nf3 e6 3. Bf4 b6 4. e3 Bb7 5. Nbd2 Bd6 6. Bg3 Bxg3 7. hxg3 Qe7 8. Bd3 Nc6 9. c4 e5 10. d5 e4 11. dxc6 Bxc6 12. Be2 exf3 13. Bxf3 O-O-O 14. Bxc6 dxc6 15. Qe2 Rd7 16. Nf3 Rdd8 17. Nd2 Rd7 18. Nf3 Rdd8 19. Nd2 Rd7 20. Nf3 Rdd8 1/2-1/2 [Event "MPL 59th Senior National Chess Championship - 2022"] [Site "?"] [Date "2022.12.28"] [Round "7"] [Board "6"] [White "Aaryan, Varshney"] [Black "Koustav, Chatterjee"] [Result "0-1"] [ECO "E97"] [WhiteElo "2346"] [BlackElo "2508"] [PlyCount "126"] [EventDate "2022.12.22"] [EventRounds "13"] [EventCountry "IND"] 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 g5 11. Bg3 Nh6 12. dxe5 fxe5 13. h3 g4 14. hxg4 Bxg4 15. Ne1 Bxe2 16. Nxe2 Kh8 17. Nf3 Qe8 18. Nc3 Nd8 19. c5 dxc5 20. Qd5 c6 21. Qxc5 Ne6 22. Qb4 Rxf3 23. gxf3 Qh5 24. Rfd1 Nf7 25. Rd7 Nfg5 26. Rxg7 Qh3 27. Rf7 Nxf7 28. Qe7 Nfg5 29. Qf6+ Kg8 30. Qf5 Qh5 31. Kg2 Rf8 32. Qg4 Qg6 33. Rh1 Nf4+ 34. Bxf4 Rxf4 35. Qc8+ Rf8 36. Qg4 Rf4 37. Qc8+ Rf8 38. Qg4 Nxf3 39. Qxg6+ hxg6 40. Rh3 Nd4 41. Rg3 Kg7 42. Rg5 Kf6 43. Rg3 Ne6 44. Kf1 Rd8 45. Ke1 Nf4 46. b3 Rd4 47. f3 Rd3 48. Nd1 a5 49. Nb2 Re3+ 50. Kd1 Re2 51. Kc1 Rf2 52. Rg4 g5 53. Kb1 b5 54. Nd1 Rxf3 55. Kc2 Kg6 56. Rg1 Kh5 57. Rh1+ Rh3 58. Rg1 g4 59. Nb2 g3 60. Nd1 g2 61. Nf2 Rf3 62. Nd1 Rf1 63. Rxg2 Nxg2 0-1 [Event "MPL 59th Senior National Chess Championship - 2022"] [Site "?"] [Date "2022.12.29"] [Round "8"] [Board "4"] [White "Koustav, Chatterjee"] [Black "Vignesh, N R"] [Result "1-0"] [ECO "B22"] [WhiteElo "2508"] [BlackElo "2493"] [PlyCount "113"] [EventDate "2022.12.22"] [EventRounds "13"] [EventCountry "IND"] 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 d6 5. Bc4 e6 6. d4 cxd4 7. cxd4 Nc6 8. O-O Be7 9. Qe2 O-O 10. Qe4 Ndb4 11. exd6 Qxd6 12. Nc3 Na5 13. Bb5 a6 14. Bf4 Qd8 15. Ba4 Bd7 16. Bxd7 Qxd7 17. Ne5 Qd8 18. Rad1 Nd5 19. Nxd5 exd5 20. Qf5 Qc8 21. Qd7 Qd8 22. Rc1 Bf6 23. Rc7 Nc6 24. Rd1 Bxe5 25. dxe5 Qh4 26. Qf5 g6 27. Qg5 Qxg5 28. Bxg5 Nxe5 29. Rxd5 f6 30. Bxf6 Rxf6 31. Rxe5 Rf7 32. Ree7 Rd8 33. g4 Rxe7 34. Rxe7 b5 35. Re2 Kf7 36. Kg2 Kf6 37. Rc2 Rd6 38. h4 h6 39. Kf3 b4 40. Ke4 a5 41. f4 b3 42. axb3 Rb6 43. g5+ hxg5 44. hxg5+ Ke6 45. Rc7 Rb4+ 46. Kf3 Rxb3+ 47. Kg4 Rb6 48. Rg7 Kd5 49. Rf7 a4 50. Rf6 Rxb2 51. Rxg6 a3 52. Ra6 a2 53. g6 Rb6 54. Rxa2 Rxg6+ 55. Kf5 Rg8 56. Rd2+ Kc6 57. Ke6 1-0 [Event "MPL 59th Senior National Chess Championship - 2022"] [Site "?"] [Date "2022.12.30"] [Round "9.1"] [Board "1"] [White "Sethuraman, S.P."] [Black "Koustav, Chatterjee"] [Result "0-1"] [ECO "C11"] [WhiteElo "2642"] [BlackElo "2508"] [Annotator "Shahid"] [PlyCount "100"] [EventDate "2022.12.22"] [EventRounds "13"] [EventCountry "IND"] {[%evp 0,100,29,22,36,36,34,19,69,75,31,-4,20,19,23,32,19,24,29,68,40,32,32,25,20,24,78,41,31,31,12,27,27,5,56,59,72,50,82,-13,3,-8,22,46,135,13,18,17,0,-15,-36,-35,-40,-38,-35,-28,-31,-64,-64,-81,-82,-90,-104,-112,-95,-86,-97,-87,-69,-86,-88,-90,-162,-158,-153,-203,-162,-139,-154,-160,-178,-178,-195,-185,-206,-190,-209,-215,-215,-232,-215,-223,-236,-250,-251,-318,-364,-392,-415,-562,-560,-29977,-29992]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 cxd4 8. Nxd4 Qb6 9. Qd2 Qxb2 10. Rb1 Qa3 11. Bb5 Nxd4 12. Bxd4 a6 13. Bxd7+ Bxd7 14. Rb3 Qe7 15. Rxb7 Rc8 16. O-O Qd8 17. Qe3 Rc4 18. Rfb1 Be7 19. h3 O-O 20. Kh2 Bc8 21. Ra7 f6 22. Rd1 (22. Ne2 fxe5 23. Bxe5 Bf6) 22... fxe5 23. Bxe5 Bf6 24. Rd2 Bxe5 25. Qxe5 Qf6 26. Qxf6 gxf6 27. Ne2 Rf7 28. Rxf7 Kxf7 29. c3 Bd7 30. f5 e5 31. Rxd5 Bxf5 32. Ra5 Rc6 33. Kg1 Be6 34. Kf2 Rb6 35. a4 Rb2 36. Kf3 Bb3 37. Nc1 Bc4 38. Rc5 Bf1 39. g4 Rc2 40. Nb3 Bxh3 41. a5 Kg6 42. Rc7 h6 43. Kg3 Bf1 44. Rc8 Be2 45. Rc7 h5 46. gxh5+ Bxh5 47. Na1 Rb2 48. Rc6 Kg5 49. Rb6 (49. Rxa6 f5 $19) 49... Ra2 50. Nb3 f5 0-1 [Event "MPL 59th Senior National Chess Championship 2022"] [Site "Indira Gandhi Sports Complex, Near ITO, New Delhi"] [Date "2022.12.31"] [Round "10.1"] [Board "1"] [White "Koustav, Chatterjee"] [Black "Mitrabha, Guha"] [Result "1/2-1/2"] [ECO "D35"] [WhiteElo "2508"] [BlackElo "2487"] [PlyCount "117"] [EventDate "2022.12.22"] [EventRounds "13"] [EventCountry "IND"] {[%evp 0,117,26,-24,-6,-3,-14,0,6,-4,-4,-26,5,9,3,-13,-2,8,0,7,9,7,7,-2,19,-22,-18,-20,-7,-9,33,39,80,42,71,75,69,73,67,57,61,33,41,44,55,43,60,55,94,92,142,123,134,111,208,189,174,141,173,33,39,46,58,-36,-30,-36,-13,-47,-60,-55,-54,-74,-47,-57,-70,-76,-73,-60,-66,-71,-71,-110,-87,-78,-95,-83,-65,-64,-68,-70,-71,-111,-81,-81,-52,-52,-46,-46,-46,-28,-13,-29,-4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Bf5 7. Qf3 Bg6 8. Bxf6 Qxf6 9. Qxf6 gxf6 10. Nf3 Nd7 11. Nh4 Be7 12. Ne2 Nb6 13. Ng3 Bb4+ 14. Kd1 Na4 15. Ngf5 b5 16. Rb1 a5 17. Bd3 Kd7 18. Ke2 Rhe8 19. g4 Nb6 20. Ng2 Nc4 21. Nf4 Kc7 22. Nh5 Bxh5 23. gxh5 Bf8 24. h6 Nd6 25. Ng7 Bxg7 26. hxg7 f5 27. Rhg1 Rg8 28. Rg5 h6 29. Rh5 Rxg7 30. Rxh6 Re8 31. Rh4 Rg4 32. Rxg4 fxg4 33. f3 Rh8 34. Rh1 f5 35. Kf2 Rh3 36. Be2 g3+ 37. Kg2 Rxh2+ 38. Rxh2 gxh2 39. Kxh2 f4 40. Bd3 (40. exf4 Nf5 41. Kg2 Nxd4 42. Bf1) 40... fxe3 $2 (40... Nc4 41. Bxc4 (41. exf4 Nxb2 42. Bc2 a4 43. f5 b4 44. f6 Kd6 45. Kg3 Ke6) (41. b3 Nxe3 42. Kh3 Kd6) 41... dxc4 42. exf4 b4 $19) 41. Kg3 Nc4 42. b3 Nb2 43. Be2 c5 44. dxc5 d4 45. Bxb5 d3 46. f4 d2 47. Be2 Kc6 48. f5 Kxc5 49. f6 Kd6 50. f7 Ke7 51. Kf3 d1=Q 52. Bxd1 Nxd1 53. Ke2 Nc3+ 54. Kxe3 Kxf7 55. Kd4 Nxa2 56. Kc4 Nc1 57. Kb5 Nxb3 58. Ka4 Nd4 59. Kxa5 1/2-1/2 [Event "MPL 59th Senior National Chess Championship - 2022"] [Site "Indira Gandhi Sports Complex, Near ITO, New Delhi"] [Date "2023.01.01"] [Round "11.2"] [Board "2"] [White "Srihari, L R"] [Black "Koustav, Chatterjee"] [Result "1/2-1/2"] [ECO "E06"] [WhiteElo "2429"] [BlackElo "2508"] [Annotator "Shahid"] [PlyCount "112"] [EventDate "2022.12.22"] [EventRounds "13"] [EventCountry "IND"] {[%evp 0,112,27,23,26,6,6,-31,-13,-14,5,5,4,14,18,26,55,31,16,11,19,19,44,5,42,33,34,49,69,47,103,70,63,42,47,33,26,4,43,24,21,14,27,32,34,29,33,33,33,32,62,49,75,67,51,36,61,84,71,65,53,65,48,48,1,-21,17,0,0,0,0,0,215,118,80,82,322,322,322,336,304,107,93,131,113,113,113,113,84,0,0,0,0,0,0,0,0,0,124,48,81,52,50,73,308,308,308,179,185,97,89,89,100,133,133]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O c6 7. Nc3 a5 8. Ne5 Nfd7 9. Nxd7 Nxd7 10. b3 f5 11. a4 Bf6 12. Ba3 Re8 13. e3 Kh8 14. Qc2 Nb8 15. Rad1 Na6 16. Rfe1 Be7 17. Bb2 Nb4 18. Qb1 Rf8 19. Ne2 g5 20. Nc1 Bd7 21. Nd3 Nxd3 22. Qxd3 g4 23. h3 gxh3 24. Bxh3 Rg8 25. Bg2 Bd6 26. c5 Bc7 (26... Bxg3 $5 27. fxg3 Rxg3 28. Qf1 Qg5) 27. Kf1 Rb8 28. Ke2 b5 29. Bc3 Bc8 30. Kd2 Ba6 31. Rh1 Ra8 32. Qc2 Bxg3 33. fxg3 Rxg3 34. Kc1 Qg5 35. Bf1 bxa4 36. Bd2 axb3 37. Qxb3 f4 (37... Bb5 38. Bxb5 Rb8) 38. Bxa6 fxe3 39. Qb7 (39. Rxh7+ Kg8 (39... Kxh7 40. Qb7+ Kg6 (40... Kh8 41. Rh1+ Kg8 42. Qxa8+ Kf7 43. Qb7+ $18) 41. Bd3+ Kf6 42. Rf1+) 40. Bd3) 39... exd2+ 40. Kb2 (40. Rxd2 Rg1+ 41. Kc2 Rxh1 42. Qxa8+ Kg7 43. Qb7+ Kh8 44. Qxc6 Qg1 45. Qe8+ Kg7 46. Qe7+ Kg8 47. Qxe6+ Kg7 48. Qd7+ Kh8 49. Qe8+ Kg7 50. Qe5+ Kf8 51. Qf5+ Kg7 52. Kb3) 40... Qg8 41. Rxh7+ Qxh7 42. Qxa8+ Rg8 43. Qxc6 Rb8+ 44. Kc3 $2 (44. Bb5 a4 45. Ka1) 44... Qh3+ 45. Kc2 Qb3+ 46. Kxd2 Qb2+ 47. Ke3 Qg2 48. Bb5 Rf8 49. Be2 Qe4+ 50. Kd2 Qxd4+ 51. Kc2 Qe3 (51... Qe5) 52. Bd3 Kg7 53. Rd2 Rf2 54. Qc7+ Kf6 55. Qd8+ Kf7 56. Qc7+ Kf6 1/2-1/2 [Event "MPL 59th Senior National Chess Championship - 2022"] [Site "Indira Gandhi Sports Complex, Near ITO, New Delhi"] [Date "2023.01.02"] [Round "12.1"] [Board "1"] [White "Koustav, Chatterjee"] [Black "Karthik, Venkataraman"] [Result "0-1"] [ECO "E04"] [WhiteElo "2508"] [BlackElo "2503"] [Annotator "Shahid"] [PlyCount "70"] [EventDate "2022.12.22"] [EventRounds "13"] [EventCountry "IND"] {[%evp 0,70,19,31,14,30,23,4,10,-30,-6,-13,-11,6,0,-28,-20,-4,5,9,36,9,31,-7,7,-43,-45,-25,-36,-36,-30,-48,-1,-23,17,-26,0,-81,-14,-11,-5,-24,-4,-21,-8,-2,0,-21,-23,-21,-18,-19,-21,-51,-34,-72,-48,-100,-80,-85,-87,-98,-93,-269,-277,-285,-303,-301,-299,-308,-313,-526,-561]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 dxc4 5. Bg2 Bd7 6. Ne5 Bc6 7. Nxc6 Nxc6 8. O-O Qd7 9. e3 O-O-O 10. Nc3 h5 11. b3 Bb4 12. Qc2 cxb3 13. axb3 Bxc3 14. Qxc3 Nd5 15. Qb2 a6 16. Bd2 f5 17. Rfc1 Kb8 18. Rc5 Na7 19. h4 Nb5 20. Rac1 Rc8 21. Qb1 Nf6 22. Qd3 Rhe8 23. Qe2 g6 24. Ba5 Nd5 25. Bd2 c6 26. Rd1 Qg7 27. Rcc1 Rcd8 28. Kf1 e5 29. dxe5 Qxe5 30. Ba5 $2 (30. Qe1) 30... Nbc3 31. Rxd5 $4 (31. Bxc3 Nxc3 32. Rxd8+ Rxd8 33. Qc4 Ne4 34. Bxe4 fxe4) (31. Rxc3 Nxc3 32. Rxd8+ Rxd8 $19) 31... Nxe2 32. Rxe5 Nxc1 33. Bxd8 Rxe5 34. b4 Re6 35. e4 Rd6 0-1 [Event "MPL 59th Senior National Chess Championship - 2022"] [Site "Indira Gandhi Sports Complex, Near ITO, New Delhi"] [Date "2023.01.03"] [Round "13"] [Board "4"] [White "Hari, Madhavan N B"] [Black "Koustav, Chatterjee"] [Result "1/2-1/2"] [ECO "D36"] [WhiteElo "2385"] [BlackElo "2508"] [PlyCount "135"] [EventDate "2022.12.22"] [EventRounds "13"] [EventCountry "IND"] 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Bd3 O-O 8. Qc2 Nbd7 9. Nge2 Re8 10. O-O Nf8 11. Bxf6 Bxf6 12. b4 a6 13. a4 g6 14. b5 a5 15. bxc6 bxc6 16. Rad1 Ne6 17. e4 Nxd4 18. Nxd4 Bxd4 19. Ne2 Bf6 20. Qxc6 Bd7 21. Qc2 Rc8 22. Qa2 Rb8 23. Nf4 Rb4 24. Bb5 Bxb5 25. axb5 d4 26. Nd5 Rxb5 27. Qa4 Rxd5 28. exd5 Re7 29. Ra1 Qxd5 30. Qxa5 Qd7 31. Rae1 Kg7 32. Rxe7 Qxe7 33. Re1 Qd7 34. Qd2 h5 35. Qd3 Qc6 36. g3 Qd5 37. h4 Qc6 38. Qe4 Qd7 39. Rd1 Qd8 40. Rd3 Qd7 41. Kg2 Qd6 42. f3 Qd7 43. Rd2 Qc8 44. Rc2 Qd7 45. Rc1 Qb5 46. Rb1 Qc4 47. Rf1 Qc8 48. Qd3 Qe6 49. f4 Qd5+ 50. Qf3 Qe6 51. f5 Qe3 52. fxg6 Qxf3+ 53. Kxf3 fxg6 54. Ke4 Be7 55. Ke5 g5 56. hxg5 Kg6 57. Ke6 Bb4 58. Ke5 Kxg5 59. Rf7 Kg4 60. Rg7+ Kf3 61. Kxd4 Bd6 62. Rh7 Bxg3 63. Rxh5 Kg2 64. Ke3 Bf2+ 65. Ke2 Bg1 66. Rg5+ Kh1 67. Kf1 Bh2 68. Rg6 1/2-1/2