[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.13"]
[Round "1.1"]
[White "Oatlhotse, Providence"]
[Black "Munenga, Douglas D"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "2201"]
[BlackElo "2357"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,73,39,23,30,31,43,62,39,21,20,78,30,25,31,25,28,76,56,59,61,61,56,56,0,0,-19,-14,-20,0,0,0,0,0,-71,-18,-18,0,0,122,83,411,411,409,424,386,264,387,388,331,193,270,269,600,597,775,766,723,705,836,819,976,793,3104,1010,29982,1391]} 1. c4 e5 2. g3 h5 3. h4 d5 4. cxd5 Qxd5 5. Nf3 {[#]} Nc6 $146 ({Predecessor:} 5... Bg4 6. Nc3 Qe6 7. d4 Bxf3 8. d5 Bxd5 9. Nxd5 Qd6 10. Qb3 Nc6 11. Be3 Nge7 {½-½ (53) Barlov,D (2490)-Ilincic,Z (2565) Belgrade 1998}) 6. Nc3 {A20: English Opening: 1...e5.} Qd8 7. Bg2 Bc5 8. a3 {White is slightly better.} a5 9. d3 Nh6 (9... Nge7 $11) 10. Bd2 (10. Bg5 $5 {[%cal Rg5d8]} f6 11. Bxh6 Rxh6 12. Rc1 $14) 10... Ng4 11. O-O O-O 12. Rc1 Qe8 13. Nd5 Bd6 14. b4 axb4 15. axb4 Qd8 16. Qc2 ({White should try} 16. b5 $14 Ne7 17. Nc3) 16... Be6 $11 17. Ng5 {Black must now prevent d4!} Nd4 18. Qd1 Bd7 19. Nc3 Bxb4 20. Bxb7 Ra3 21. Be1 (21. Nb1 $11 Ba4 22. Qe1 Bxd2 23. Qxd2) 21... c5 (21... Be7 $1 $17 22. Bg2 Bxg5 23. hxg5 Qxg5) 22. e3 Nb3 23. Rc2 $1 Qa5 (23... Ra1 $11 {keeps the balance.} 24. Qe2 Bf5) 24. Qf3 Nd4 $2 {[%mdl 8192] Black cannot hold the game after this.} (24... Bxc3 $16 25. Bxc3 Nd4 26. Bxa5 Nxf3+ 27. Bxf3 Rxa5) 25. exd4 $18 {aiming for Nd5.} Bxc3 26. Rxc3 Rxc3 27. dxc5 {Hoping for Ne4.} Qa3 (27... Nf6 {was called for.} 28. c6 (28. Bxc3 Qxc3 29. c6 Bg4 $16) 28... Bc8) 28. Bxc3 Qxc3 29. Qe4 $40 {[%mdl 128] Black is in trouble.} (29. c6 $142 Be6 30. d4 $1 {[%mdl 512]} Qxf3 31. Nxf3) 29... g6 (29... Nf6 $142 30. Qc4 Qxc4 31. dxc4 Bf5) 30. Qc4 Qa5 $2 (30... Qxc4 31. dxc4 Bf5) 31. c6 Qc7 32. cxd7 Qxd7 33. Bd5 Nh6 34. Rb1 Rc8 35. Qe4 {And now Qxg6+ would win.} Qd6 36. Rb7 {[%cal Rg5f7]} Rf8 37. Bc4 {Accuracy: White = 62%, Black = 36%.} (37. Qf3 $142 e4 38. dxe4 Qa6 39. Nxf7 Qxb7 {[%mdl 64] Remove Defender} 40. Bxb7 Nxf7 {[#]} 41. Bd5 $1 {[%mdl 512]} Kg7 42. Qc3+ Kh7 43. Qf6 $1 {[%mdl 512]}) 1-0

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.13"]
[Round "1.2"]
[White "Kayonde, Andrew"]
[Black "Fernandes, Antonio"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "2366"]
[BlackElo "2353"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,114,11,11,20,6,20,12,7,4,11,7,18,9,14,1,33,29,29,29,77,76,74,51,60,61,120,65,47,16,27,0,28,28,169,172,194,183,187,160,231,243,286,284,282,296,301,309,289,297,294,214,273,251,307,265,357,151,175,77,90,118,150,108,95,147,307,300,308,291,284,282,533,501,491,469,454,425,461,431,673,637,678,689,729,732,720,722,718,717,727,667,2770,2916,2680]} 1. d4 d5 2. Nf3 c6 3. e3 Bf5 4. c4 e6 5. Nc3 Nd7 6. Bd3 Bxd3 7. Qxd3 Ngf6 8. O-O Be7 9. e4 dxe4 10. Nxe4 Nxe4 11. Qxe4 O-O 12. Re1 Qa5 {D12: Slav Defence: 3 Nf3 Nf6 4 e3 Bf5.} 13. Bf4 Rfd8 14. a3 {[#]} Rac8 $146 {The position is equal.} ({Predecessor:} 14... Qa4 15. Rac1 Rac8 16. Rc3 b5 17. Ng5 Nf8 18. Rec1 Bf6 19. Nf3 Ng6 20. Be3 b4 21. axb4 Qxb4 {½-½ (40) Sipila,V (2431)-Starostits,I (2494) Istanbul 2012}) 15. h3 Qh5 16. Qc2 Bf6 17. c5 Qf5 18. Qc1 Re8 19. Qe3 Bd8 20. Nd2 b5 21. Ne4 {Black must now prevent Nd6.} Be7 22. a4 {Strongly threatening g4.} b4 23. a5 $36 {[%mdl 2048] Black is under pressure.} Nf6 ({Better is} 23... Qd5 $14) 24. Nd6 (24. Nxf6+ $1 $16 Bxf6 25. Ra4) 24... Bxd6 $1 $14 25. Bxd6 a6 26. Rad1 Red8 27. Rd3 Ne8 (27... Ra8 $11) 28. Be5 $1 $18 f6 29. Bg3 e5 30. Red1 e4 {[#]} (30... Nc7 $16 {was necessary.}) 31. Rb3 $1 Nc7 32. Bxc7 $1 ({Weaker is} 32. Rxb4 Nb5 $14) 32... Rxc7 33. Rxb4 Qd5 34. Qe2 Ra7 35. Rb6 f5 36. Qd2 Rad7 37. b3 Qe6 38. Qe3 ({Less strong is} 38. Rxa6 Rxd4 39. Qxd4 Rxd4 $16) 38... Qf6 39. Rb4 (39. Rxa6 $18 {has better winning chances. Threatens to win with b4.} h6 40. Rb6) 39... h6 40. g3 (40. Rb6 $18 {is more deadly.}) 40... Rd5 {[#] ...Rxc5 would now be nice for Black.} 41. Rd2 $1 R8d7 42. Kg2 g5 43. Qe2 (43. Rb8+ $142 Kg7 44. Rb6) 43... Re7 $2 (43... Kg7 $16) 44. Qxa6 f4 45. Rb8+ Kh7 46. Qc8 {[%csl Gb8][%cal Rc8g8]} Kg6 $2 (46... h5 47. Qg8+ Kh6 48. Qf8+ Qxf8 49. Rxf8 Ra7) 47. Qg8+ {White is clearly winning.} Qg7 48. Qxg7+ Kxg7 {[%mdl 4096] Endgame KRR-KRR} 49. Rb4 f3+ 50. Kf1 Red7 (50... g4 $142 51. hxg4 h5) 51. Ke1 Ra7 52. Ra2 Rd8 53. a6 Kf6 54. Kd2 Ke6 55. Ke3 Kd5 56. Rb7 Rda8 {Hoping for ...Rxb7.} 57. Rxa7 Rxa7 {Accuracy: White = 78%, Black = 48%.} 1-0

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.13"]
[Round "1.3"]
[White "Van Zyl-Rudd, Jack"]
[Black "Cawdery, Daniel"]
[Result "1/2-1/2"]
[ECO "A57"]
[WhiteElo "2277"]
[BlackElo "2418"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,95,43,27,21,35,43,24,23,47,0,0,-13,0,-26,-14,-38,0,0,0,0,0,0,0,-47,-43,-49,-44,-50,0,-16,-16,-10,-12,-131,-125,-128,3,2,4,-74,-77,-112,-112,-112,-112,-112,-112,-112,-112,-112,-104,-119,-104,-106,-82,-104,-82,-104,-82,-112,-82,-82,-82,-116,-118,-116,-104,-104,-83,-98,-98,-98,-45,-60,-49,-58,-52,-60,-8,-60]} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3 e6 6. Nc3 exd5 7. Nxd5 Bb7 8. Nxf6+ Qxf6 9. Nf3 Be7 10. Be2 {A57: Benko/Volga Gambit.} axb5 11. Bxb5 O-O 12. O-O {White has an edge.} d5 {[#]} 13. Bd2 $146 ({Predecessor:} 13. a4 Rd8 14. Ra2 Nc6 15. b3 d4 16. exd4 Nxd4 17. Nxd4 cxd4 18. Qd3 Rac8 19. Bc4 {1-0 (44) Krysa,L (2499)-Prie,E (2459) Barcelona 2019}) 13... Qxb2 14. Bd3 (14. a4 {feels hotter.} Nc6 15. Re1 Rfd8 16. Rb1 Qf6 17. Qc2) 14... Ba6 15. Bxa6 Rxa6 16. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Bf6 17. Rb1 Qa2 18. a5 Nc6 19. Rb5 c4 {Threatens to win with ...c3.} 20. Qb1 (20. Nd4 $5) 20... Qxb1 21. Rfxb1 c3 22. Be1 $1 Nxa5 23. Nd4 Bxd4 24. exd4 Nc4 25. Rxd5 (25. Rc1 $11 {was the only way to keep the balance.}) 25... c2 $36 {[%mdl 2048] White is under strong pressure.} 26. Rc1 {[#]} Re8 (26... Nb2 $1 $17 {[%cal Rb2d3] Strongly threatening ...Nd3.} 27. Rxc2 Ra1) 27. g3 $11 f6 {aiming for ...Rb6.} 28. Rc5 {[#]} (28. Kf1 $11) 28... Nb2 $1 $17 {[%cal Rb2d3] And now ...Nd3 would win.} 29. R5xc2 Nd3 $1 {[%csl LRc1,LRe1][%mdl 64] Double Attack} 30. Rc8 Rae6 31. Bd2 Nxc1 32. Rxc1 {[%mdl 4096] Endgame KRR-KRB} Kf7 33. h4 Rd6 34. Be3 Rd7 35. Kg2 Ra8 36. Kf3 h6 37. Rc6 Re8 38. Ra6 Re6 39. Ra5 Red6 40. Rb5 Rd5 41. Rb6 Kg6 42. Ke4 R5d6 43. Rb5 Re6+ 44. Kf3 f5 (44... h5 $17) 45. Rb8 Kf6 46. Rf8+ Rf7 $1 {[%cal Rf7f8]} 47. Rg8 Re4 (47... Kg6 $15) 48. Rc8 {Accuracy: White = 69%, Black = 78%.} ({White should play} 48. h5 $1 $11) 1/2-1/2

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.13"]
[Round "2.1"]
[White "Munenga, Douglas D"]
[Black "Cawdery, Daniel"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2357"]
[BlackElo "2418"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,77,20,21,20,18,22,17,39,48,39,11,14,7,2,-2,61,0,0,0,-25,-20,-6,-25,12,18,66,60,216,207,206,210,389,394,482,463,552,482,697,227,438,325,431,411,411,370,376,376,515,386,362,354]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Rb8 12. Nc2 Bg5 13. Be2 O-O 14. O-O a5 15. b4 axb4 {B33: Sicilian: Pelikan and Sveshnikov Variations.} 16. Ncxb4 Bd7 17. Bg4 {[#]} Na5 $146 {[%cal Bc6a5,Ba5c4,Bc4e3][%mdl 32] The position is equal.} ({Predecessor:} 17... Be8 18. g3 Na5 19. Qe2 g6 20. Rfd1 Ra8 21. Bh3 Nb7 22. Bg2 Nc5 23. f4 exf4 24. gxf4 {½-½ (37) Urban,M (1840)-Dessaules,P (2310) ICCF email 2011}) 18. Bxd7 Qxd7 19. Qh5 h6 20. h4 Bd8 $1 21. Ne3 Qe6 ({Black should play} 21... Rc8 $11) 22. Rad1 (22. Nbd5 $14) 22... Nc4 $11 23. Nbd5 Nxe3 24. Nxe3 Ra8 25. Rd3 {Threatens to win with Nf5.} Qg6 ({But not} 25... Rxa2 $6 26. Nf5 $16) 26. Qf3 {Black should prevent Nf5.} Re8 ({Of course not} 26... Rxa2 27. Nf5 $16) 27. Nf5 Re6 $2 {This move loses the game for Black.} (27... Be7 $1 $14) 28. Qe2 Qh7 29. Rfd1 ({Don't play} 29. Rxd6 $6 Rxd6 30. Nxd6 Qg6 $16) (29. Nxd6 $6 Bxh4 30. Nxb5 Rc6 $16) 29... Bc7 $2 (29... g6) 30. Rg3 $18 {[%mdl 64] [#] Discovered Attack} g6 31. Qxb5 {Strongly threatening Qb7!} Kh8 32. Qb7 Rae8 (32... Rg8 $142 33. Qxc7 gxf5 34. Rxd6 Rxg3 35. Rxe6 {[%mdl 64] Discovered Attack} Rxg2+ 36. Kxg2 Qg8+ 37. Kh2 fxe6 38. exf5 exf5 39. Qxe5+ {[%mdl 64] Double Attack} Kh7 40. Qxf5+ Kh8 41. Qf6+ Kh7 42. Qe7+ Kh8 43. Qe5+ Kh7 44. Qe4+ Kh8 45. Qe5+ Kh7 46. Qc7+ Kh8) 33. Ne3 $2 (33. Qxc7 f6 34. Qxh7+ Kxh7 35. Nxd6) 33... Bb8 $2 {[#]} (33... Bd8 34. Rf3 R8e7) 34. Rf3 f5 35. Qxh7+ Kxh7 36. exf5 gxf5 37. Rxf5 R8e7 38. Nd5 Rb7 39. h5 {Accuracy: White = 69%, Black = 36%.} 1-0

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.13"]
[Round "2.2"]
[White "Fernandes, Antonio"]
[Black "Van Zyl-Rudd, Jack"]
[Result "1-0"]
[ECO "E03"]
[WhiteElo "2353"]
[BlackElo "2277"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,67,10,0,6,12,0,19,18,16,17,21,7,20,0,0,-44,-40,-162,-168,-154,-166,-155,0,0,0,0,0,0,0,0,154,152,140,137,154,156,158,147,172,161,204,208,216,213,228,224,232,230,234,227]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. d4 O-O 6. c4 dxc4 7. Qa4 b6 8. Qxc4 Bb7 9. Nc3 Nbd7 10. Rd1 c5 11. Ne5 {E03: Open Catalan: 5 Qa4+ Nbd7 6 Qxc4.} Bxg2 12. Kxg2 Qc7 13. Nxd7 {The position is equal.} Qxd7 14. dxc5 Qc6+ 15. f3 {[#]} Rfc8 $146 ({Predecessor:} 15... Qxc5 16. Qxc5 Bxc5 17. Bf4 Rfd8 18. e4 Ne8 19. Kf1 Kf8 20. Ke2 Ke7 21. Nb5 Rdc8 {½-½ (41) Aronian,L (2794)-Mamedyarov,S (2809) Berlin 2018}) 16. Rd3 Nd7 {Strongly threatening ...Ne5.} 17. Bf4 g5 $1 {[%cal Rg5f4]} 18. Bxg5 ({Better is} 18. Rxd7 $15 Qxd7 19. Rd1) 18... Bxg5 $19 19. Qg4 h6 {aiming for ...Ne5.} 20. Rd6 {[#]} Qc7 $2 {[#]} (20... Qb7 $1 $17 21. h4 {[%mdl 64] Pin} Ne5) 21. Nd5 $1 $11 {[%mdl 512]} exd5 22. Rxd7 Qe5 ({But not} 22... Qxc5 23. h4 $16) 23. f4 {[%mdl 64] Pin} Qe4+ 24. Kh3 Rxc5 $2 (24... f5 $1 $11 25. Qh5 Qe6) 25. fxg5 $16 {White is clearly better.} Qxg4+ 26. Kxg4 hxg5 $11 {[%mdl 4096] Endgame [#] KRR-KRR} 27. Rf1 $1 Rf8 28. Rf5 d4 29. Rxd4 Rfc8 30. Rd2 Rc4+ 31. Kxg5 R8c6 32. Rf4 Rg6+ 33. Kf5 Rc5+ 34. Ke4 {What a bad dream for Black. Accuracy: White = 83%, Black = 78%.} 1-0

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.13"]
[Round "2.3"]
[White "Oatlhotse, Providence"]
[Black "Kayonde, Andrew"]
[Result "0-1"]
[ECO "A11"]
[WhiteElo "2201"]
[BlackElo "2366"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,80,0,0,7,0,0,0,-2,-2,0,-19,87,73,83,94,108,61,53,44,44,47,69,10,9,10,10,10,10,-9,0,-60,-52,-80,-110,-363,75,-371,-349,-331,-167,-150,-166,-137,-164,-365,-364,-323,-302,-291,-294,-392,-392,-388,-386,-665,-649,-721,-643,-5727,-5716,-5561,-5561,-4810,-4802,-29970,-29976,-29976,-29975,-29974,-29975]} 1. c4 c6 2. Nf3 d5 3. g3 Nf6 4. Bg2 dxc4 5. O-O Nbd7 6. Qc2 Nb6 7. Na3 Be6 {A11: English Opening: 1...c6.} 8. Rd1 {[#]} Bd5 $146 ({Predecessor:} 8... Qd5 9. Qc3 Qh5 10. d4 Ne4 11. Qe3 Nd6 12. Bd2 g6 13. Qe5 Rg8 14. Qxh5 gxh5 15. Nc2 {0-1 (68) Sartori,D-Fabri,L ICCF email 2009}) 9. b3 cxb3 {The position is equal.} 10. axb3 e6 11. d3 {Hoping for e4.} c5 (11... Bxf3 $1 $11 12. Bxf3 Bb4) 12. e4 $16 {[%mdl 1024] White has strong compensation.} Bc6 13. Ne5 Bd7 14. Bb2 Be7 15. d4 cxd4 16. Bxd4 O-O 17. Nac4 (17. Qb2 $14) 17... Nxc4 $11 18. bxc4 Qc7 19. Qb2 Rfd8 20. Bxa7 {Black must now prevent Bb6.} (20. Rxa7 {seems wilder.} Rxa7 21. Bxa7 Be8 22. Rxd8 Bxd8 23. Bd4) 20... b5 21. cxb5 ({White should play} 21. Bd4 $11 bxc4 22. Qb6 Qxb6 23. Bxb6 Rxa1 24. Rxa1) 21... Rxa7 $15 22. b6 $1 Rxa1 23. bxc7 $4 {[%mdl 8192]} (23. Rxa1 $17 {was the only chance.} Qb7 24. Ra7) 23... Rxd1+ $19 24. Bf1 Rc8 25. Qb7 Rc1 (25... Ne8 $142 26. Nxd7 Rxc7 {[%mdl 64] Double Attack}) 26. Nxd7 R8xc7 27. Nxf6+ Bxf6 28. Qb5 $2 {[#]} (28. Qb6) 28... g6 $1 29. e5 Be7 30. Kg2 R7c2 31. Qe8+ Bf8 32. Qd8 Rb1 33. h4 $2 (33. Bd3 Rd2 34. Kf3) 33... Rbb2 34. Qf6 Rd2 35. h5 Bc5 36. Kh3 Rxf2 37. Qd8+ {[#]} Kg7 $1 {( -> ...Rh2+)} 38. Bg2 Rxg2 {Black mates.} 39. Qf6+ Kg8 40. Qd8+ Bf8 {Accuracy: White = 58%, Black = 85%.} 0-1

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.13"]
[Round "3.1"]
[White "Kayonde, Andrew"]
[Black "Munenga, Douglas D"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2366"]
[BlackElo "2357"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,83,30,35,8,12,15,33,18,18,3,4,-18,1,-43,-14,-14,-14,-14,0,-22,-23,-18,0,-25,-12,-40,3,-45,-32,-100,-106,-100,-70,-63,-73,-80,-88,-157,-154,-167,-162,-159,-131,-139,-131,-126,-63,-129,-130,-126,-101,-101,-77,-78,-77,-77,-76,-102,-93,-89,-65,-73,-70,-97,0,0,0,-18,195,45,208,6,702,-95,-106,-261]} 1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d5 4. e3 c5 5. Bd3 Nf6 6. Nc3 {A45: Trompowsky Attack.} c4 7. Be2 Nc6 {[#]} 8. g4 $146 {White is slightly better.} ({Predecessor:} 8. Bf3 g6 9. Nge2 Bg7 10. b3 cxb3 11. axb3 O-O 12. Bg5 Nb4 13. Na2 Nxa2 14. Rxa2 {1-0 (67) Chytilek,R (2362)-Sadilek,P (2283) Austria 2014}) 8... e6 9. g5 Ng8 10. Bf3 Bd6 11. Qd2 Nge7 12. Nge2 Bxf4 13. Nxf4 Rb8 14. h4 b5 15. Nce2 Qd6 16. Bg2 Bd7 17. Nh5 O-O 18. f4 b4 19. Kf2 (19. Nhg3 $15) 19... Kh8 $17 20. Rag1 {[#]} c3 $1 {[%mdl 512]} 21. bxc3 Na5 $1 {[%cal Bc6a5,Ba5c4,Bc4a3][%mdl 32]} 22. Nhg3 Nc4 23. Qe1 (23. Qd3 $142) 23... Rfc8 24. cxb4 Rxb4 25. Qa1 Na3 26. c3 Rb6 27. h5 h6 (27... Rcb8 $17 28. h6 g6) 28. gxh6 (28. e4 $15) 28... gxh6 29. e4 Rcb8 30. e5 Qc6 31. Qc1 Rb2 32. f5 exf5 33. Qf4 Nc4 34. Bh3 {[%cal Rh3f5]} Qe6 35. Rg2 Rxa2 36. Kg1 Ra1+ (36... Rg8 $17 {...Kh7 is the strong threat.} 37. Kh2 a5) 37. Kh2 Rxh1+ 38. Kxh1 Rb6 $2 (38... Rg8 $1 $11) 39. Kh2 ({White should try} 39. Nc1 $1 $18) 39... a5 $2 {[#]} ({Better is} 39... Kh7 $1 $14) 40. Kh1 $2 (40. Ne4 $1 $18 {[%mdl 512] aiming for Nf6.} dxe4 41. Qg3) 40... Rb8 $2 {[%mdl 8192] [#]} (40... Kh7 $11) 41. Kg1 $2 {[#]} ({White should play} 41. Bxf5 $1 $18 {[%mdl 512]} Nxf5 42. Nxf5) 41... Rg8 $1 42. Kf1 $2 {[%mdl 32768] Never resign too early! Accuracy: White = 49%, Black = 58%. . Sensor Board Error (Ke4/e5)?} (42. Kh2 $17) 1-0

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.13"]
[Round "3.2"]
[White "Van Zyl-Rudd, Jack"]
[Black "Oatlhotse, Providence"]
[Result "1/2-1/2"]
[ECO "B28"]
[WhiteElo "2277"]
[BlackElo "2201"]
[Annotator "TA"]
[PlyCount "24"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,24,38,47,37,45,19,34,35,28,9,21,4,16,22,24,21,34]} 1. e4 c5 2. Nf3 a6 3. c4 d6 4. d4 Bg4 5. dxc5 Bxf3 6. Qxf3 {B28: Sicilian: 2 Nf3 a6 (O'Kelly Variation).} dxc5 7. Be3 Qb6 {[#]} 8. Nd2 $146 {White is slightly better.} ({Predecessor:} 8. b3 Nc6 9. Nc3 e6 10. Bd3 Rd8 11. Na4 Qa5+ 12. Bd2 Qc7 13. Bc3 Ne5 14. Bxe5 Qxe5 {0-1 (47) Weidemann,J (2285)-Granados,R (2220) Badalona 1993}) 8... Nc6 9. Be2 e6 ({Much weaker is} 9... Ne5 $6 10. Qg3 $16) 10. Qg3 O-O-O 11. O-O-O Nd4 12. Bxd4 cxd4 1/2-1/2

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.13"]
[Round "3.3"]
[White "Cawdery, Daniel"]
[Black "Fernandes, Antonio"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2418"]
[BlackElo "2353"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,55,19,30,31,20,43,22,43,43,43,38,52,33,39,27,26,0,0,0,2,2,11,16,15,-6,0,-16,29,33,40,0,19,0,0,11,28,30,7,16,0,-16]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Bb5 Ne4 8. cxd4 Bb4+ 9. Bd2 {[#] Strongly threatening Bxb4.} Be7 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 10. Be3 Bd7 {[#]} 11. Qb3 $146 ({Predecessor:} 11. Be2 O-O 12. O-O Be6 13. Ne1 f5 14. Nd3 Bg5 15. Nf4 Bxf4 16. Bxf4 Qh4 17. g3 Qe7 18. f3 Ng5 19. Bxg5 Qxg5 {1-0 (74) Ponce Cano,A (2183)-Antunez Munoz,I (1873) Salobrena 2015}) 11... Nb4 12. Be2 a5 {[%cal Ba7a5,Ba5a4][%mdl 32]} 13. O-O O-O 14. a3 a4 15. Qd1 Nc6 16. Nc3 Nxc3 17. bxc3 Na5 18. Nd2 b5 19. Bd3 c6 20. Qh5 {[%csl Gd3][%cal Rh5h7] [#]} g6 $1 {[%cal Rg6h5]} 21. Qh6 f5 22. Nf3 Rf7 $1 23. Ng5 Rg7 $1 24. e6 Be8 25. Bf4 Bd6 26. Bxd6 Qxd6 27. Rfe1 Raa7 28. e7 {Accuracy: White = 100%, Black = 94%.} 1/2-1/2

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.13"]
[Round "4.1"]
[White "Van Zyl-Rudd, Jack"]
[Black "Munenga, Douglas D"]
[Result "1/2-1/2"]
[ECO "E71"]
[WhiteElo "2277"]
[BlackElo "2357"]
[Annotator "TA"]
[PlyCount "37"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,37,27,50,30,30,13,57,31,52,54,56,54,52,16,159,163,180,165,166,161,138,27,33,34,56,33,50,-40]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 O-O 6. Be3 c6 7. g4 {E71: King's Indian: 4 e4 d6 5 h3.} Qa5 8. Qd2 e5 {[#] ...exd4 is the strong threat.} (8... c5 $5 {[%cal Rc5d4]}) 9. d5 cxd5 10. cxd5 Na6 11. f3 Bd7 12. Rb1 b5 {[#]} (12... Ne8 $11 {remains equal.}) 13. Nxb5 $1 $16 Nb4 14. Nc3 Rab8 15. a3 Na6 16. Bxa6 ({White should play} 16. Nge2 $16) 16... Qxa6 $11 17. Nge2 {White is slightly better.} Ne8 18. O-O f5 19. Ra1 {Accuracy: White = 59%, Black = 75%.} (19. exf5 $14 gxf5 20. Bh6) 1/2-1/2

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.13"]
[Round "4.2"]
[White "Cawdery, Daniel"]
[Black "Kayonde, Andrew"]
[Result "1/2-1/2"]
[ECO "B19"]
[WhiteElo "2418"]
[BlackElo "2366"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,45,0,4,0,0,0,0,0,0,0,49,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Ngf6 12. O-O-O Be7 13. Qe2 O-O 14. Nf1 $1 {[%mdl 4] is currently scoring better than 14.Ne5. B19: Classical Caro-Kann: 4...Bf5 main line.} c5 15. g4 cxd4 ({Much worse is} 15... Nxg4 $6 16. Rg1 $16) 16. g5 Nd5 {[%cal Rh6g5]} 17. gxh6 {Hoping for Rg1.} Qb6 $1 {Threatens to win with ...Ba3!} 18. Rg1 {[#] Black must now prevent Qd3.} (18. Ne1 $5 {[%cal Re2g4]} Bf6 19. hxg7 Bxg7 20. h6 $11) 18... Ba3 $1 {[%csl Ga3][%cal Rb6b2][%mdl 512] The position is equal.} 19. Rxg7+ (19. bxa3 Nc3) 19... Kh8 {[%csl Ga3][%cal Rb6b2]} 20. bxa3 Nc3 $1 {[%cal Rc3e2]} 21. Bxc3 dxc3 {[%csl Gc3][%cal Rb6b2]} 22. Rh7+ $1 Kg8 $1 {[%csl Gc3][%cal Rb6b2] [#]} 23. Rg7+ {Not much happened in this game. Accuracy: White = 85%, Black = 100%.} 1/2-1/2

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.13"]
[Round "4.3"]
[White "Fernandes, Antonio"]
[Black "Oatlhotse, Providence"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2353"]
[BlackElo "2201"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,75,35,32,10,48,35,32,52,61,59,71,64,68,46,60,61,52,62,70,61,69,37,75,26,62,45,109,67,60,51,62,26,62,71,86,89,106,97,105,73,320,320,620,613,622,601,604,592,735,675,641,674,831,825,805,809,936,912,940,939,936,929,1028,980,995,986,1171,1198]} 1. e4 c6 2. d4 d5 3. f3 Nf6 4. e5 Ng8 {[#]} 5. c4 $146 ({Predecessor:} 5. c3 Bf5 6. g4 Bxb1 7. Rxb1 e6 8. Be3 h5 9. Bd3 Nd7 10. Kf1 g6 11. Kg2 Bh6 {1-0 (28) Timofeev,A (2664)-Bistric,F (2382) Neum 2008}) 5... e6 6. Nc3 {B12: Caro-Kann: Advance Variation.} Ne7 7. Be3 Nf5 8. Bf2 {White is slightly better.} dxc4 9. Bxc4 Nd7 {[%cal Bb8d7,Bd7b6,Bb6d5][%mdl 32]} 10. Nge2 Be7 11. Qc2 Nb6 12. Bd3 Nd5 13. Qd2 O-O 14. O-O b6 15. Rac1 Bb7 16. Ne4 Rc8 17. a3 a5 (17... Rc7 $14) 18. Rfd1 Rc7 19. N2c3 Rd7 20. Kh1 Kh8 21. Nxd5 Rxd5 22. Nc3 {[%cal Be4c3,Bc3e2,Be2g3,Bg3f1][%mdl 32]} Rd7 {[#]} 23. d5 $1 cxd5 {[#]} 24. Bb5 $1 $36 {[%mdl 2048] White is on the roll.} Rc7 $2 {Loses the game.} (24... Bc8 $16) 25. Bxb6 $18 {[%mdl 64] Double Attack} Bc5 $2 (25... d4) 26. Bxc7 {White is clearly winning.} Qh4 {[%csl Gh4][%cal Rf5g3]} 27. Ne2 Be3 28. Qd3 g5 29. Bxa5 g4 {Threatens to win with ...gxf3.} 30. Be1 g3 31. Nxg3 Bf4 32. Nf1 Qg5 33. Bd2 Rg8 34. g3 Bxd2 35. Qxd2 Qh5 36. Qf2 d4 37. Bc6 Ba6 38. g4 {[%mdl 64] Double Attack. Accuracy: White = 82%, Black = 46%.} 1-0

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.14"]
[Round "5.1"]
[White "Munenga, Douglas D"]
[Black "Fernandes, Antonio"]
[Result "0-1"]
[ECO "B05"]
[WhiteElo "2357"]
[BlackElo "2353"]
[Annotator "TA"]
[PlyCount "190"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,190,30,30,-12,-7,-21,0,-17,-2,-13,-6,-4,28,0,0,0,0,0,0,-19,22,-39,0,-61,-61,-55,-49,-81,0,-17,-10,-8,0,-36,-60,-58,-64,-70,-41,-40,-46,-60,-43,-38,-29,-85,-71,-81,-53,-49,-40,-91,-85,-79,-83,-77,-72,-79,-54,-54,-26,-60,-26,-42,-33,-33,-29,-52,-64,-69,-16,-8,-8,-43,-43,-49,0,0,0,0,23,23,25,25,12,0,0,0,0,0,0,0,0,0,0,-227,-227,-598,-22,-30,-36,-29963,-29965,-5065,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-29983,-29984,-29985,-29986,-29988,-29989,-29994,-29992]} 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. h3 Bxf3 6. Qxf3 dxe5 7. dxe5 e6 8. c3 {B05: Alekhine's Defence: 4 Nf3 Bg4.} Nd7 9. Qg3 {[#]} h5 $146 ({Predecessor:} 9... Ne7 10. Nd2 Nf5 11. Qf4 g5 12. Qa4 c6 13. Ne4 Nc5 14. Qc4 Nxe4 15. Qxe4 h6 {1-0 (28) Nikitenko,M (2416)-Svjatocho,A (2048) Minsk 2015}) 10. h4 $1 {The position is equal.} Ne7 11. Bg5 Nf5 12. Qf3 Qb8 13. Bf4 (13. Nd2 {seems wilder.} Nxe5 14. Qe2 Bd6 15. Ne4 a5 16. g3) 13... c6 14. Qe2 Qc7 15. Nd2 O-O-O 16. O-O-O Nb6 17. Nf3 (17. g3 $11) 17... Bc5 {White should prevent ...Rxd1+.} 18. Bg5 (18. Rxd8+ $11 Rxd8 19. g3) 18... Rxd1+ $15 19. Kxd1 Nd5 $1 20. Qc2 Qb6 ({Better is} 20... f6 $17 21. Bc1 fxe5) 21. Ke1 $11 f6 22. Bc1 Rf8 23. b4 Be7 24. a3 fxe5 25. Bd3 g6 26. c4 Nf4 27. Bxf4 exf4 28. c5 Qd8 29. Bc4 (29. Be4 $11 {remains equal.}) 29... Kb8 {[%cal Re7h4]} 30. Qe4 Bf6 {[%cal Rf5h4]} 31. Qxf4+ Ka8 32. Ke2 ({White should play} 32. Qe4 $15) 32... Nd4+ 33. Kf1 Nxf3 34. gxf3 Bb2 35. Qe3 Qf6 36. Rh3 e5 37. Kg2 Qd8 38. b5 cxb5 39. Bxb5 Bd4 40. Qe4 Bxc5 41. Rg3 Qb6 (41... Qd2 $15 42. Qe2 Qxe2 43. Bxe2 Bxa3 44. Rxg6 a5) 42. a4 Rf6 43. Rg5 a6 44. Bd3 Qb2 45. Qe2 $1 {[%cal Re2b2]} Qd4 46. Rxe5 Ka7 47. Qe3 Rd6 48. Rxc5 Qxd3 49. Rc3+ (49. Kg3 {is more complex.} Qxe3 50. fxe3 b5 51. a5 Kb7 52. e4) 49... Qxe3 50. fxe3 {[%mdl 4096] Endgame KR-KR} b5 51. axb5 axb5 52. e4 Kb6 53. Kg3 b4 54. Rc8 $2 (54. Rc1 $11) 54... Kb5 55. e5 $2 (55. Rc1 {was the crucial defense.}) 55... Rb6 $2 ({Black should try} 55... Rc6 $19 56. Ra8 b3) 56. Rc1 b3 {Strongly threatening ...b2.} 57. f4 $2 {[%mdl 8192]} (57. Kf4 $15) 57... b2 58. Rb1 Kc6 $2 (58... Kc4 $19 59. f5 gxf5) 59. f5 $1 gxf5 60. Kf4 Kd7 {White must now prevent ...Ke6.} 61. Kxf5 Rb4 62. Kg5 Ke6 63. Kxh5 Kf5 {[#]} 64. e6 $1 {[%mdl 512]} Rb8 {[%cal Rb8h8]} (64... Kxe6 65. Kg6) 65. Kh6 Kxe6 {aiming for ...Kf5.} 66. h5 Kf6 {[%cal Rb8h8]} 67. Rf1+ Ke5 68. Rb1 $1 Kf5 {...Rb6+ is the strong threat.} 69. Rf1+ $1 Kg4 70. Rg1+ Kh4 71. Rh1+ Kg4 72. Rg1+ $1 Kf4 73. Rf1+ Ke5 74. Rb1 Rb6+ 75. Kg5 Rb3 76. Kh6 Kf5 {Hoping for ...Rb6+.} 77. Rf1+ $1 Kg4 78. Rg1+ Kh4 79. Rh1+ Kg3 80. Rb1 Kf4 {Threatens to win with ...Rb6+.} 81. Rf1+ Kg4 82. Rg1+ Rg3 83. Rd1 {[#]} Rd3 $1 {[%mdl 512]} 84. Rg1+ (84. Rxd3 b1=Q) 84... Kf4 85. Rf1+ Rf3 86. Rd1 {[#]} Rd3 $1 {[%mdl 512]} 87. Rf1+ (87. Rxd3 b1=Q) 87... Ke5 88. Kh7 Rb3 89. h6 b1=Q+ 90. Rxb1 Rxb1 {KR-KP} 91. Kg6 Ke6 {( -> ...Rg1+)} 92. h7 $2 {[%mdl 8192] [#]} (92. Kg7 $11) 92... Rg1+ $1 {Black mates.} 93. Kh6 {[#]} Kf7 $1 94. h8=N+ Kf6 {[%cal Rg1h1]} 95. Kh7 Rg2 {Accuracy: White = 78%, Black = 82%.} 0-1

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.14"]
[Round "5.2"]
[White "Oatlhotse, Providence"]
[Black "Cawdery, Daniel"]
[Result "0-1"]
[ECO "A20"]
[WhiteElo "2201"]
[BlackElo "2418"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,95,3,15,14,17,5,14,11,36,7,0,0,43,-51,-24,-60,-15,-113,-115,-97,-100,-143,-143,-129,-109,-144,-147,-141,-145,-145,-143,-141,-148,-191,-191,-194,-185,-193,-182,-285,-285,-288,-246,-276,-189,-199,-213,-342,-344,-343,-331,-377,-375,-358,-346,-1559,-1611,-12834,-12835,-12835,-12835,-12836,-12835,-12837,-12837,-29967,-29968,-29967,-29969,-29969,-29970,-29971,-29973,-29974,-29975,-29974,-29975,-29979,-12847,-12847,-12848,-12848,-12849,-12849,-12850,-29986,-12850,-29989]} 1. c4 e5 2. g3 d5 3. cxd5 Qxd5 4. Nf3 Bg4 5. Bg2 Nc6 $1 6. Nc3 {A20: English Opening: 1...e5.} Qd7 7. O-O O-O-O 8. d3 {[#] The position is equal.} h5 $146 ({Predecessor:} 8... f6 9. a3 Bh3 10. Be3 h5 11. Qa4 Bxg2 12. Kxg2 Kb8 13. Rfc1 Nge7 14. Ne4 Nf5 {0-1 (70) Mochalin,F (2270)-Savchenko,B (2562) Moscow 2019}) 9. h4 f6 10. Bd2 Bc5 11. Qa4 (11. Ne4 $14 Bd4 12. Nxd4 Nxd4 13. f3) 11... Nge7 $15 12. Rac1 Bb6 13. Kh2 (13. Be3 $11 {remains equal.}) 13... Kb8 $17 14. Ne4 Bxf3 15. Bxf3 Nd4 16. Qxd7 Nxf3+ 17. exf3 Rxd7 18. Rc3 Rhd8 19. Kg2 Rxd3 20. Rxd3 Rxd3 21. Bc3 Nd5 22. Re1 Kc8 23. Re2 Kd7 24. Rd2 (24. Bd2 {is a better defense.}) 24... Rxd2 $19 25. Bxd2 {[%mdl 4096] Endgame KBN-KBN} Bd4 26. b3 b5 27. g4 c5 28. gxh5 (28. Kf1 {might work better.}) 28... c4 29. bxc4 bxc4 30. h6 gxh6 31. Bxh6 {[#]} c3 $1 32. Ng3 $2 (32. Kf1 f5 33. Ng3) 32... Nf4+ 33. Bxf4 exf4 {KB-KN} 34. Ne2 c2 35. h5 Ke7 36. h6 Kf7 37. Kf1 Bb2 38. Ke1 c1=Q+ 39. Nxc1 Bxc1 {KB-KP} 40. Ke2 Kg6 41. Kd3 Kxh6 {KB-K3P} 42. Ke4 Kg5 43. a4 Kh4 (43... Bb2 $142 44. Kd3 Kh4 45. Ke4 Be5 46. Kd5 Kh3 47. Ke6 {[#]} Kg2 $1 {[%mdl 576] Double Attack} 48. Kd5 Kxf3 49. Kc4 Kxf2 50. Kc5 f3 51. Kc6 Ke3 52. Kd7 f2 53. Ke8 f1=Q 54. Kf7 Qc4+ 55. Ke7 Qg8 56. a5 Qh7+ 57. Ke8 Bd6 58. Kd8 Qe7+ 59. Kc8 Qc7#) 44. Kf5 Kh3 45. a5 Kg2 {[%mdl 64] Double Attack} 46. Ke4 Kxf2 {( -> ...f5+!)} 47. a6 {[#]} f5+ $1 48. Kd4 {Accuracy: White = 48%, Black = 77%.} (48. Kxf5 Kxf3) 0-1

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.14"]
[Round "5.3"]
[White "Kayonde, Andrew"]
[Black "Van Zyl-Rudd, Jack"]
[Result "1/2-1/2"]
[ECO "D05"]
[WhiteElo "2366"]
[BlackElo "2277"]
[Annotator "TA"]
[PlyCount "32"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,32,28,21,74,38,63,27,69,56,37,0,0,0,121]} 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 c5 5. c3 Nbd7 6. Bd3 Bd6 7. O-O O-O 8. Re1 Qc7 9. e4 cxd4 10. cxd4 dxe4 11. Nxe4 Bf4 {[#] D05: Colle System with ...e6.} (11... Be7 $11) 12. Ne5 $146 ({Predecessor:} 12. Qe2 Nd5 13. g3 Bxc1 14. Raxc1 Qb8 15. Neg5 N7f6 16. Ne5 Qd6 17. a3 Bd7 18. Ne4 Nxe4 19. Qxe4 {1-0 (56) Schiendorfer,E (2341)-Grandadam,N (2273) Switzerland 2014}) 12... Bxe5 13. dxe5 Qxe5 14. Nxf6+ Qxf6 15. Re3 {[#] Black must now prevent Bxh7+!} g6 $1 16. Bd2 Nc5 (16... Qxb2 $11 17. Be2 Qd4) 1/2-1/2

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.14"]
[Round "6.1"]
[White "Munenga, Douglas D"]
[Black "Oatlhotse, Providence"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2357"]
[BlackElo "2201"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,73,13,27,24,5,-13,-8,-10,-5,-5,-5,-16,-3,-30,-29,-37,-23,-23,10,14,13,12,11,0,0,0,0,0,0,0,12,11,8,8,24,27,29,16,60,22,38,23,28,31,132,134,157,139,148,143,168,182,184,173,186,32,862,827,987,985,1021,1015,1015,1014,1014,1010]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. c4 e5 5. Nc3 Ne7 6. d3 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} Nc6 {[#]} 7. Bxc6 $146 ({Predecessor:} 7. O-O a6 8. Bxc6 bxc6 9. Ne1 Be7 10. f4 exf4 11. Bxf4 O-O 12. Nf3 Nb6 13. Qe1 {½-½ (34) Krayz,A (2359)-Nedobora,M (2360) Israel 2020}) 7... bxc6 8. O-O {The position is equal.} Be7 9. Ne1 Rb8 10. b3 Bf6 11. Bd2 Nf8 {[%cal Bd7f8,Bf8e6,Be6d4][%mdl 32]} 12. Rc1 Ne6 13. Ne2 g6 14. f4 exf4 15. Nxf4 Nd4 16. Nc2 O-O 17. Qe1 Bh4 18. Qe3 Nxc2 19. Rxc2 Bf6 {Threatens to win with ...Bd4.} 20. Bc3 Bxc3 21. Rxc3 Qe7 22. d4 cxd4 23. Qxd4 Bb7 24. Nh5 {[%csl Gh5][%cal Rd4g7,Bf4h5,Bh5g3,Bg3f5][%mdl 32]} f5 25. exf5 {Hoping for Re3.} c5 26. Qg4 Rbe8 (26... Qe5 $1 $14 27. Rd3 Be4) 27. Ng3 $1 $16 Bc8 28. Rcf3 Kh8 29. h3 $1 gxf5 30. Nxf5 Qe5 31. Qh5 {aiming for Re3.} Bb7 {[#]} 32. Rf4 $2 $40 {[%mdl 128] White has some attack.} (32. Re3 $1 $18 {[%cal Re3e5]} Be4 33. Qg5) 32... Re6 $2 {[%mdl 8192] [#] This costs Black the game.} (32... Rg8 $14 33. Rg4 Ref8) 33. Rh4 $1 $18 {[%csl Gh4][%cal Rh5h7] White is clearly winning.} h6 34. Qg5 Rxf5 35. Rxh6+ Rxh6 36. Qxh6+ Kg8 37. Qg6+ {[%mdl 64] Double Attack. Accuracy: White = 83%, Black = 71%.} 1-0

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.14"]
[Round "6.2"]
[White "Fernandes, Antonio"]
[Black "Kayonde, Andrew"]
[Result "0-1"]
[ECO "B10"]
[WhiteElo "2353"]
[BlackElo "2366"]
[Annotator "TA"]
[PlyCount "124"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,124,0,0,0,0,0,11,0,0,0,-7,0,-4,-51,-43,-55,22,31,72,-16,-21,-2,-3,-3,2,0,0,-14,-22,-10,56,28,18,0,2,24,1,10,20,-64,0,0,0,0,0,0,0,-8,-26,-105,-105,-114,-87,-88,-60,-75,-83,-158,-20,-33,0,-145,-152,-225,-227,-303,-241,-241,-242,-236,-236,-236,-236,-318,-318,-304,-294,-270,-236,-236,-236,-236,-236,-261,-277,-317,-309,-309,-302,-294,-287,-287,-287,-1214,-1164,-1616,-1514,-29945,-12850,-29956,-29961,-29962,-29962,-29968,-29972,-29973,-29974,-29979,-29980,-29981,-29981,-29981,-29982]} 1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Nf6 5. Qa4+ Nbd7 6. Nc3 g6 7. Bc4 Bg7 8. Nf3 {B10: Caro-Kann: 2 d3 and 2 c4.} O-O 9. d3 a6 10. Qa3 {The position is equal.} b6 $1 {10...b6 is better than 10...Nb6.} 11. O-O Bb7 12. Re1 Re8 13. Ng5 b5 {[%mdl 1024] Black has compensation.} 14. Bb3 Ng4 (14... Rc8 $1 $15) 15. Qb4 $11 Nge5 16. Rd1 {[#]} (16. Qh4 $1 $16 {[%cal Rh4h7]} h6 17. Nge4 Nxd3 18. Bxh6 Nxe1 19. Rxe1) 16... h6 $146 ({Predecessor:} 16... Nb6 17. Qh4 h6 18. Nge4 g5 19. Qg3 Nxd5 20. Bxd5 Bxd5 21. h4 gxh4 22. Qxh4 e6 {½-½ (47) Degraeve,J (2546)-Eliet,N (2447) Le Touquet 2007}) 17. Nh3 $1 Nf6 {[%cal Rf6d5]} 18. Qh4 g5 (18... Nxd5 $6 19. Bxh6 Nxc3 20. bxc3 $16) 19. Qg3 $1 {[%cal Rg3e5]} b4 (19... Nh5 $5 20. Qe3 $8 Ng6 $15) 20. Ne4 Nh5 $1 $36 {[%cal Rh5g3][%mdl 2048] White is under pressure.} ({Reject} 20... Nxd5 $6 21. f4 $16) 21. Qe3 {Strongly threatening Nhxg5!} Bxd5 ({Better is} 21... a5 $1 $11) 22. Qe2 g4 23. Nf4 Nxf4 24. Bxf4 Bxb3 25. axb3 Qd5 26. Qe3 (26. Ng3 $11) 26... Kh7 (26... Ng6 $1 $15 27. Bxh6 Bxb2) 27. Bxe5 Bxe5 28. d4 Red8 {[%cal Re5d4]} 29. Ng3 $1 Bxg3 30. Qxg3 (30. hxg3 {is more complex.} e6 31. Qf4 Ra7 32. Qxg4 Qxb3 33. Qe4+) 30... Qf5 31. Re1 (31. Qe3 $11) 31... Rxd4 $17 32. Rxe7 {[#]} Rad8 $1 33. Rae1 Rf4 34. h3 gxh3 {White must now prevent ...Rg8.} 35. R1e5 ({White should try} 35. R7e5 Qg4 36. Qxg4 Rxg4 37. g3) 35... Qb1+ (35... Rd1+ $17 36. Kh2 Qg6) 36. Re1 $11 Qf5 {...Rg8 is the strong threat.} 37. Re8 {[#] Black keeps a firm grip on the game.} (37. R1e5 $1 $11 {remains equal.} Rd1+ 38. Kh2) 37... Rxe8 $1 $17 38. Rxe8 {[%csl Ge8][%cal Rg3g8][%mdl 4096] Endgame KQR-KQR} Qg4 39. Kh2 Qxg3+ 40. fxg3 $19 {KR-KR} Rf2 {[%mdl 64] Double Attack} 41. Kxh3 Rxb2 42. Ra8 Ra2 43. g4 Ra3 44. Kh4 Kg7 ({Much less strong is} 44... Rxb3 45. Rxa6 Kg7 46. g5 $19) 45. Ra7 Ra2 46. Kg3 Kf6 47. Kf4 Ra3 (47... Rxg2 48. Rxa6+ Ke7 49. Rb6 $11) 48. Rb7 a5 49. Rb6+ Ke7 50. Ra6 Kd7 (50... Rxb3 $2 51. Rxa5 Rb1 52. Ke3 $17) 51. Ke5 Rxb3 52. Rxa5 Kc6 {aiming for ...Ra3.} 53. Ra6+ $2 (53. Kd4 Rg3 {[%mdl 64] Double Attack} 54. Rc5+ Kd6 55. Rd5+ Ke7 56. Re5+ Kf6 57. Rf5+ Kg6 58. Rf2) 53... Kb5 54. Rxh6 Rg3 55. Rf6 Rxg2 (55... Rxg4 $142 56. Rxf7 Rxg2 57. Kd4 Ka4 58. Ra7+ Kb3 59. Rb7 Rg4+ 60. Kd3 Kb2 61. Rb8 b3 62. Kd2 Ka2 63. Rb7 b2 64. Ra7+ Kb1 65. Ra3 Rd4+ 66. Ke3 Rd1 67. Ra7 Rd5 68. Rb7 Kc2 69. Rc7+ Kb3 70. Rf7 b1=Q 71. Rb7+ Kc2 72. Rxb1 Kxb1 73. Ke4 Rh5 74. Kd4 Kc2 75. Kc4 Kd2 76. Kd4 Ra5 77. Kc4 Ke3 78. Kb4 Rh5 79. Kc4 Re5 80. Kb3 Kd3 81. Kb4 Rf5 82. Kb3 Rf4 83. Kb2 Rb4+ 84. Ka3 Kc3 85. Ka2 Kc2 86. Ka3 Rd4 87. Ka2 Ra4#) 56. Kd4 Rd2+ {Black mates.} 57. Ke3 Rd7 58. g5 b3 {[%cal Bb4b3,Bb3b2][%mdl 32]} 59. g6 fxg6 60. Rxg6 b2 61. Rg8 Rb7 ({Weaker is} 61... Re7+ 62. Kd2 $15) 62. Rg1 Ka4 {Accuracy: White = 56%, Black = 80%.} 0-1

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.14"]
[Round "6.3"]
[White "Cawdery, Daniel"]
[Black "Van Zyl-Rudd, Jack"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2418"]
[BlackElo "2277"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,79,29,33,14,16,13,6,17,38,22,25,27,15,16,25,17,97,97,97,97,95,95,94,94,94,99,95,99,107,94,95,89,90,89,94,93,94,93,99,94,95,65,133,131,119,124,182,186,217,204,207,206,220,220,460,429,436,433,505,500,537,495,514,436,720,579]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bf5 7. O-O Be7 8. Re1 O-O 9. Nbd2 $1 {[%cal Rd2e4,Bb1d2,Bd2f1,Bf1g3][%mdl 4] is currently scoring better than 9.c4. C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} Nd6 $1 10. Nf1 Bxd3 11. Qxd3 {The position is equal.} Nd7 12. Ng3 Re8 13. Bf4 Nf6 14. Re2 c6 15. Rae1 Nfe4 {[#]} (15... Bf8 $11 {remains equal.}) 16. Qb3 $1 $16 Qb6 17. Bxd6 $1 ({Much worse is} 17. Nxe4 Nxe4 18. Nd2 Nxd2 $14) 17... Bxd6 18. Nxe4 dxe4 19. Rxe4 Rxe4 20. Rxe4 Qxb3 21. axb3 {[%mdl 4096] Endgame KRB-KRN} a5 22. Re1 f6 23. Ra1 Kf7 24. Kf1 b6 25. Ke2 g5 26. Kd3 Rd8 27. Rd1 Bc7 28. c4 g4 {[#]} (28... h5 $14) 29. Nh4 $1 Be5 30. Nf5 c5 (30... h5 $16 {was necessary.}) 31. d5 $18 Bxb2 32. Nh6+ Kg6 33. Nxg4 Bd4 34. Re1 b5 $2 (34... h5) 35. cxb5 {White is clearly winning.} Rxd5 {Strongly threatening ...Bxf2+.} 36. Kc4 Rd6 37. Ne3 f5 38. Nd5 Bxf2 39. Re7 Bh4 (39... Bg1 $142 40. h3 Bh2) 40. Rc7 {Accuracy: White = 93%, Black = 65%.} 1-0

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.15"]
[Round "7.1"]
[White "Cawdery, Daniel"]
[Black "Munenga, Douglas D"]
[Result "1-0"]
[ECO "C04"]
[WhiteElo "2418"]
[BlackElo "2357"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,57,15,10,21,58,50,53,41,61,22,27,25,50,16,30,5,60,79,80,73,197,212,322,237,384,384,655,661,622,615,954,962,978,950,870,902,29987,29988,29988,29989,29989,29990]} 1. e4 e6 2. d4 d5 3. Nd2 {[%cal Bb1d2,Bd2b3,Bb3a5][%mdl 32]} Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Bb5 a6 7. Bxc6 bxc6 8. Nb3 c5 9. Bg5 Be7 10. Na5 {[#] Threatens to win with Nc6. C04: French Tarrasch: 3...Nc6.} Nb8 ({Avoid the trap} 10... Bxg5 $2 11. Nc6 $18) 11. Bxe7 Qxe7 12. c3 {White is slightly better.} O-O 13. O-O c4 14. b4 {[#]} Qe8 $146 ({Predecessor:} 14... c6 15. Qd2 Ra7 16. Rae1 Rc7 17. Qf4 Nd7 18. Re3 Nb6 19. Nd2 Na4 20. Rb1 Bd7 {1-0 (53) Malac,M (2334)-David,G (2441) ICCF corr 1999}) 15. Qc2 h6 16. Nh4 Nd7 (16... Qd8 $1 $11 17. g3 Nd7) 17. f4 $14 Nb6 18. g4 Qa4 {Loses the game.} (18... Qe7 $16 {might work better.} 19. Nf3 Bd7) 19. Qd2 $18 Qa3 (19... Kh7 $142 20. f5 Rg8) 20. Rac1 Bd7 (20... Kh7 $142 21. g5 Qa4 22. gxh6 g6) 21. f5 f6 $2 (21... exf5 22. gxf5 Kh7) 22. fxe6 Bxe6 23. exf6 Nd7 24. fxg7 Kxg7 25. g5 Rxf1+ 26. Rxf1 {[#] And now Qc2 would win.} h5 27. Qc2 {White mates.} Nf8 28. Nc6 Re8 29. Nf5+ {Accuracy: White = 80%, Black = 28%.} 1-0

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.15"]
[Round "7.2"]
[White "Van Zyl-Rudd, Jack"]
[Black "Fernandes, Antonio"]
[Result "0-1"]
[ECO "A67"]
[WhiteElo "2277"]
[BlackElo "2353"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,88,36,35,36,30,36,29,32,29,69,66,95,90,144,97,121,84,79,72,72,99,92,97,158,154,113,147,139,133,137,123,143,137,125,74,69,74,80,56,56,55,52,10,9,0,8,7,9,-219,-223,-211,-197,-194,-195,-195,-195,-189,-178,-4764,-4622,-4391,-1629,-1025,-933,-12844,-12839,-29979,-5111]} 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ Nfd7 9. a4 O-O 10. Nf3 Na6 11. O-O Nb4 $1 {The main line 11...Nb4 scores better than 11...Nc7.} 12. Be3 a6 {A67: Modern Benoni: Taimanov Variation.} 13. Be2 Nf6 14. Nd2 Re8 {Threatens to win with ...Nfxd5!White has an edge.} 15. Bf2 Qc7 16. Bg3 {[#]} Rb8 $146 ({Predecessor:} 16... Bd7 17. Bf3 c4 18. e5 Nfxd5 19. Nxd5 Nxd5 20. Nxc4 Qxc4 21. Bxd5 Qb4 22. Ra3 Bc6 23. Bxc6 bxc6 24. Qxd6 Qxb2 {0-1 (92) Toncheva,N (2087)-Liu,Z (2386) Paracin 2019}) 17. f5 Nd7 (17... gxf5 $142 18. Nc4 Bf8) 18. Nc4 {aiming for fxg6.} Ne5 19. Bxe5 Bxe5 20. Nxe5 Rxe5 21. Qd2 Qe7 {[%cal Rg6f5]} 22. Rf3 gxf5 (22... Bd7 $142) 23. Qh6 {Rg3+ would kill now.} Kh8 24. Rg3 {[%csl Gg3][%cal Rh6g7]} f6 {[#]} 25. Rg6 $1 Bd7 {Strongly threatening ...Rf8.} 26. Rxf6 Rg8 27. Rf1 Nc2 28. Bh5 ({Don't do} 28. Rxd6 $6 fxe4 29. Rdf6 Reg5 $14) ({White should try} 28. g3) 28... Qg7 $16 29. Qxg7+ Rxg7 30. Rxd6 Ne3 {[%mdl 64] Double Attack} 31. Rf2 Nc4 32. Rf6 {[%cal Re4f5]} fxe4 33. Rf8+ Rg8 34. Be2 Nxb2 35. Bxa6 $2 (35. d6 $11 {and White stays safe.}) 35... Nxa4 $19 36. Nxa4 bxa6 37. Nxc5 {[#]} e3 $1 {[%cal Re3f2]} 38. Rxg8+ Kxg8 {[%mdl 4096] Endgame KRB-KRN} 39. Rf8+ Kg7 40. Nxd7 $2 (40. Rf1 Bb5 41. Re1) 40... e2 41. Rf7+ Kh6 42. Rf6+ Kg5 43. h4+ Kxh4 44. g3+ Kg5 {Black used his chance. Accuracy: White = 58%, Black = 81%.} (44... Kxg3 $142 45. Rf3+ Kxf3 46. Nxe5+ Ke4 {[%mdl 64] Double Attack} 47. d6 e1=Q+ 48. Kg2 Kxe5 49. d7 Qd2+ 50. Kf1 Qxd7 51. Ke1 Kf4 52. Ke2 a5 53. Kf1 Qd2 54. Kg1 Kg3 55. Kh1 Qh2#) 0-1

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.15"]
[Round "7.3"]
[White "Kayonde, Andrew"]
[Black "Oatlhotse, Providence"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "2366"]
[BlackElo "2201"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,53,52,45,116,104,607,602,861,875,1042,1073,1045,1049,1195,1194,1197,1193,1190,1196,1196,1191,1154,1167,1156,1150,1137,1115,1885,1904,1567,1566,5102,4982]} 1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nbd7 6. Bd3 Bd6 7. O-O O-O 8. Re1 Qc7 9. e4 cxd4 10. cxd4 dxe4 11. Nxe4 Nxe4 12. Rxe4 Nf6 {D05: Colle System with ...e6.} (12... Nb6 $14) 13. Rh4 $16 {Hoping for Bg5.} h6 $2 {[%mdl 8192] [#]} (13... g6 $16) 14. Bxh6 $1 $18 {[%mdl 512] White is clearly winning.} gxh6 15. Qd2 Bf4 16. Rxf4 Kg7 17. Ne5 Bd7 {[#]} 18. Rxf6 $146 {[%mdl 576] Clearance} ({Predecessor:} 18. Rh4 Rh8 19. Rxh6 {1-0 (19) Kessler,S (1877)-Werther,J (1681) Bad Homburg 2013}) 18... Kxf6 19. Qf4+ Ke7 {[#]} 20. Ng6+ $1 {[%mdl 576] Double Attack, Discovered Attack} Kd8 (20... fxg6 21. Qxc7) 21. Qf6+ Kc8 22. Nxf8 Bc6 23. Rc1 a6 {[#]} 24. d5 $1 exd5 (24... Bxd5 25. Rxc7+) 25. Bf5+ Kb8 {[#]} 26. Nd7+ $1 {[%mdl 576] Pin} Ka7 (26... Bxd7 27. Rxc7) 27. Qd4+ {White took control after the opening. Accuracy: White = 100%, Black = 23%.} 1-0

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.16"]
[Round "8.1"]
[White "Munenga, Douglas D"]
[Black "Kayonde, Andrew"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2357"]
[BlackElo "2366"]
[Annotator "TA"]
[PlyCount "48"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,48,-6,0,0,0,0,0,0,200,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-57,-52,-137,-120,-111,-112,-303,-303,-312,-264,-740,-706]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 Ne7 7. Nf4 c5 8. h4 {B12: Caro-Kann: Advance Variation.} cxd4 9. Nb5 $1 {[%cal Rb5d6]} (9. Qxd4 Nbc6 $17) (9. Nxg6 hxg6 10. Ne2 (10. Qxd4 Nec6 $17) 10... Nec6 $17) 9... Nec6 10. h5 $1 {[%cal Rh5g6] The position is equal.} a6 $2 (10... Be4 $11 11. f3 a6 12. Nd6+ (12. fxe4 axb5 13. exd5 exd5 $14) 12... Bxd6 13. exd6 g5) 11. Nd6+ $2 ({Weaker is} 11. Nxd4 Be4 $11) (11. hxg6 $18 axb5 12. Rxh7 (12. gxh7 Bb4+ 13. Ke2 Nd7 $14)) 11... Bxd6 $11 12. exd6 Be4 13. f3 g5 $1 {[%cal Rg5f4]} 14. Nh3 $1 h6 15. fxe4 dxe4 16. Bg2 f5 17. O-O O-O $1 18. gxf5 exf5 19. c3 (19. Bxe4 $11 fxe4 20. Bxg5 $1 {[%mdl 512]} Rxf1+ 21. Qxf1 Qxd6 22. Qf5) 19... Qxd6 $15 {[#]} 20. Be3 $146 {[#]} (20. Qb3+ $15 Kh8 21. Qa3 Qxa3 22. bxa3) ({Predecessor:} 20. Qb3+ Kh8 21. Bxe4 fxe4 22. Rxf8+ Qxf8 23. Qe6 Nd7 24. Qxd7 Rd8 25. Qg4 e3 26. b3 {0-1 (43) Topalov,V (2700)-Anand,V (2781) Linares 1999}) 20... d3 $1 $17 21. Qb3+ {[%mdl 64] Double Attack} Kh8 22. Qxb7 $2 {[#]} (22. Rxf5 $17 Rxf5 23. Qxb7) 22... Nd7 $1 $19 {...Rfb8 is the strong threat.} 23. Rxf5 {Hoping for Nf2.} Rfb8 24. Rd5 $2 (24. Qxd7 Qxd7 25. Rf6) 24... Qxd5 {Accuracy: White = 54%, Black = 93%.} (24... Rxb7 $2 {too greedy.} 25. Rxd6 Nde5 26. Bxe4 $18 {[%mdl 64] Double Attack}) 0-1

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.16"]
[Round "8.2"]
[White "Oatlhotse, Providence"]
[Black "Van Zyl-Rudd, Jack"]
[Result "1/2-1/2"]
[ECO "A20"]
[WhiteElo "2201"]
[BlackElo "2277"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,104,10,0,0,0,8,-52,-42,-52,-34,-93,-87,-93,-96,-80,-77,-92,-37,-38,-56,-92,-50,-50,-47,-45,-34,-37,-37,-33,-32,-33,-31,-32,-35,-39,-36,-33,-37,-27,-20,-49,-46,-44,-44,-47,-44,-52,-28,-26,-16,-29,-10,-10,-8,-57,-37,-59,-52,-60,-60,-63,-16,-16,-14,-23,-16,-18,0,-38,-38,-38,-38,-106,-99,-106,-112,-104,-102,-110,-66,-66,-81,-169,-169,-169,-169,-169,-169,-169,-169,-168,0,0,0,0,0]} 1. c4 e5 2. g3 c6 3. Nf3 e4 4. Nd4 d5 5. cxd5 Qxd5 6. e3 Bc5 {A20: English Opening: 1...e5.} 7. Nc3 Qe5 8. f4 ({White should try} 8. Bg2 $11) 8... Qe7 $15 {Black is slightly better.} 9. Bg2 Nf6 {[#]} 10. Qc2 $146 (10. Nde2 $15) ({Predecessor:} 10. Nde2 Bf5 11. h3 h5 12. a3 a5 13. Qc2 Nbd7 14. g4 hxg4 15. Ng3 g6 16. Nxf5 gxf5 {0-1 (25) Najart,D (2280)-Neelotpal,D (2406) Vaujany 2019}) 10... Na6 $17 {...Nb4 is the strong threat.} 11. a3 {[#]} Bxd4 $1 12. exd4 {[%cal Rc3e4]} O-O 13. O-O Qd6 (13... Bf5 $17 14. Nd1 Qd7) 14. Nxe4 $15 Qxd4+ 15. Kh1 Bf5 16. Nxf6+ $1 Qxf6 17. Qc3 Qe6 18. b4 Be4 19. Bb2 {[%csl Gb2][%cal Rc3g7] [#]} Bxg2+ 20. Kxg2 {[%csl Gb2][%cal Rc3g7]} Qd5+ 21. Kg1 {[%csl Gb2][%cal Rc3g7]} f6 22. Rae1 Rad8 23. Rf2 Rd7 24. Rfe2 Rfd8 25. Re8+ Rxe8 26. Rxe8+ Kf7 27. Qe3 Nc7 28. Re4 $1 Nb5 29. a4 Nd6 30. Rd4 Qe6 31. Qxe6+ Kxe6 $11 {[%mdl 4096] Endgame KRB-KRN} 32. g4 g6 33. Rd3 f5 34. Re3+ Kf7 $1 {Strongly threatening ...Nc4.} 35. Rh3 fxg4 (35... Ke8 {with more complications.} 36. gxf5 Nxf5 37. Bc3 a6 38. Kf2 h5) 36. Rxh7+ Ke6 37. Rxd7 Kxd7 {KB-KN} 38. Bd4 a6 39. Kg2 Ke6 40. d3 Nf5 41. Bf2 (41. Bc5 $15) 41... Ne7 $17 42. Be3 Nd5 43. Bd2 Kf5 44. Kg3 Nf6 45. a5 Nd5 46. Kg2 (46. Kf2 $17) 46... Nxf4+ $19 47. Bxf4 Kxf4 {KP-KP} 48. Kf2 Kg5 49. Kg3 Kf5 50. Kg2 Kg5 $2 (50... Ke5 $19 {And now ...Kd4 would win.} 51. Kg3 Kf5) 51. Kg3 $11 Kh5 {Hoping for ...Kg5.} 52. Kf2 $1 Kg5 {Accuracy: White = 73%, Black = 87%.} 1/2-1/2

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.16"]
[Round "8.3"]
[White "Fernandes, Antonio"]
[Black "Cawdery, Daniel"]
[Result "1/2-1/2"]
[WhiteElo "2353"]
[BlackElo "2418"]
[Annotator "NA RC"]
[PlyCount "12"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:12:02]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:03]} g6 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:05]} d5 {[%emt 0:00:00]} 4. cxd5 {[%emt 0:00:13]} Nxd5 {[%emt 0:00:00]} 5. e4 {[%emt 0:00:14]} Nxc3 {[%emt 0:00:00]} 6. bxc3 {[%emt 0:00:06]} Bg7 {[%emt 0:00:00]} 1/2-1/2

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.16"]
[Round "9.1"]
[White "Munenga, Douglas D"]
[Black "Van Zyl-Rudd, Jack"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2357"]
[BlackElo "2277"]
[Annotator "TA"]
[PlyCount "28"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,28,28,27,11,50,39,47,33,13,18,27,-8,11,-25,-18,-44,-53]} 1. e4 Nc6 2. Nf3 d6 3. c3 Nf6 4. d4 g6 5. h3 Bg7 6. Be3 O-O 7. Bd3 e5 8. Nbd2 {B07: Pirc Defence: Miscellaneous Systems.} (8. d5 $5 {[%cal Rd5c6]} Ne7 9. c4 $11) 8... h6 9. O-O Nh5 10. b4 {[#] White is slightly better.} exd4 $146 ({Predecessor:} 10... a6 11. dxe5 dxe5 12. Bc4 Nf4 13. a4 Be6 14. Bxe6 fxe6 15. Kh2 g5 16. Ne1 Qe8 {1-0 (41) Ferguson,M (2393)-Swanson,S (2263) England 2010}) 11. Nxd4 Re8 12. b5 Ne5 13. Be2 Nf6 $1 14. f4 Ned7 {White got outplayed after the opening. Accuracy: White = 52%, Black = 84%.} 1/2-1/2

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.16"]
[Round "9.2"]
[White "Kayonde, Andrew"]
[Black "Cawdery, Daniel"]
[Result "1/2-1/2"]
[ECO "D82"]
[WhiteElo "2366"]
[BlackElo "2418"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,58,0,0,0,0,3,0,38,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,13,13,18,-45,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c5 6. dxc5 Qa5 7. Rc1 dxc4 8. Bxc4 O-O 9. Nge2 Qxc5 10. Qb3 {Threatens to win with Nb5.} Nc6 {D82: Grünfeld: 4 Bf4.} 11. Nb5 Qh5 12. Ng3 Qg4 {White must now prevent ...e5.} 13. Nc7 e5 $1 {[%cal Re5f4]} 14. Bg5 Qxg5 15. h4 Qg4 {Hoping for ...Rb8.} 16. Nxa8 Na5 17. Qb5 Nxc4 18. Rxc4 Bd7 19. Qb4 e4 $1 {Strongly threatening ...b5.} 20. Nc7 Bc6 {And now ...Qd7 would win.} 21. Qd6 h5 (21... Rc8 22. f3 Bf8 23. Qxf8+ Kxf8 24. fxg4 Rxc7 25. g5 Ng4 26. Rc3 Rd7 27. Ne2 Ne5 28. Nd4 Nd3+ 29. Ke2 Nf4+ 30. exf4 Rxd4 {1-0 (44) Kayonde,A (2394)-Cawdery,D (2429) Pretoria 2018}) 22. b3 Rc8 23. a4 a6 {[#]} 24. Qe7 $146 (24. f3 $11 Qd7 25. Qxd7 Nxd7 26. Nd5) ({Predecessor:} 24. f3 exf3 25. Rxg4 Nxg4 26. gxf3 Be5 27. Qd2 Bxg3+ 28. Ke2 Bxc7 29. fxg4 Bxh1 30. Qd7 Rf8 31. Qxc7 hxg4 32. Qf4 Bf3+ 33. Kf2 Re8 34. Qg5 Kh7 35. a5 Re6 {½-½ (35) Stronsky,V (2389)-Ziese,G (2461) ICCF email 2012}) 24... Bd5 (24... Nh7 $5 {[%cal Rg7f6]} 25. O-O Bf8 $15) 25. Nxd5 {The position is equal.} Nxd5 26. Rxc8+ ({But not} 26. Qxe4 Rxc4 27. Qxd5 Bc3+ 28. Kf1 {[#]} Rd4 $1 $17 {[%mdl 512]}) 26... Qxc8 27. Qxe4 Qc1+ 28. Ke2 Qb2+ {[%mdl 64] [#] Double Attack} 29. Kf1 Qc1+ {An uneventful encounter. Accuracy: White = 84%, Black = 89%.} 1/2-1/2

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.16"]
[Round "9.3"]
[White "Oatlhotse, Providence"]
[Black "Fernandes, Antonio"]
[Result "1/2-1/2"]
[ECO "A15"]
[WhiteElo "2201"]
[BlackElo "2353"]
[Annotator "TA"]
[PlyCount "290"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,290,12,0,0,0,0,0,19,0,29,23,86,76,77,81,126,113,112,93,115,87,87,77,66,0,0,0,0,0,0,-7,-12,-41,-60,-36,-45,-46,-59,-55,-28,-29,0,0,0,-8,-16,-19,0,0,10,0,-1,-3,0,2,0,0,8,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,0,0,0,0,0,0,0,0,0,0,0,0,8,8,8,8,8,0,10,0,10,10,111,117,163,12,18,0,156,150,268,177,974,91,91,91,91,8,8,8,8,8,10,10,10,10,10,10,10,10,10,10,10,0,10,8,10,8,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,8,8,0,10,10,10,10,10,8,8,8,8,8,8,8,8,8,8,8,8,8,8,3,3,3,3,0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,3,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 Nf6 2. Nf3 g6 3. b3 Bg7 4. Bb2 O-O 5. g3 c6 6. Bg2 d6 7. O-O e5 8. d3 Nbd7 9. Nbd2 Re8 {A15: English Opening: 1...Nf6.} 10. Qc2 a5 11. a3 Qe7 12. Rac1 {[#]} Nh5 $146 ({Predecessor:} 12... Nc5 13. Rfe1 h6 14. h3 e4 15. dxe4 Nfxe4 16. Bxg7 Kxg7 17. b4 axb4 18. axb4 Nxd2 19. Nxd2 {1-0 (43) Vorobjov,P (2156)-Hansen,T (2469) Istanbul 2012}) 13. b4 f5 (13... axb4 $11 14. axb4 d5) 14. e4 $16 axb4 15. axb4 c5 {[#]} 16. exf5 $1 gxf5 17. bxc5 Nxc5 18. d4 Na4 19. Ra1 Bd7 20. c5 ({White should try} 20. Nh4 $14) 20... e4 $1 $11 {[%cal Rd6c5]} 21. cxd6 Qxd6 22. Ne5 Rec8 23. Qb3+ Be6 24. Ba3 Qxe5 25. dxe5 Bxb3 26. Nxb3 Bxe5 27. Rae1 $1 Rc3 28. Rb1 Rd3 29. Bb4 Rc8 30. Bh3 Ng7 $1 31. Rfe1 Rc2 32. Bf1 Rd8 33. Na5 Nb2 34. Nxb7 Rb8 35. Bd6 Bxd6 36. Nxd6 Rd8 37. Nb5 Ne6 38. Na3 Rcd2 39. Nc4 Nxc4 40. Bxc4 Kf7 41. f3 Rc8 42. Bb3 Kf6 43. fxe4 Ng5 {And now ...Nf3+ would win.} 44. e5+ Ke7 45. Re3 Nh3+ 46. Kh1 Nf2+ 47. Kg1 Nh3+ 48. Kf1 Rf2+ 49. Ke1 Rg2 {aiming for ...Rg1+.} 50. Bd1 {Black must now prevent Rb7+.} Rg1+ 51. Ke2 Rg2+ 52. Ke1 Rg1+ 53. Kd2 {Rb7+ is the strong threat.} Rd8+ 54. Kc2 Nf2 {[%cal Rd8d1]} 55. Rb7+ Ke6 56. Rb6+ Ke7 $1 $132 {[%mdl 2048] Black puts up resistance} 57. Rb7+ Ke6 58. Rb6+ Ke7 $1 59. Bf3 {Hoping for Rh6.} Rc8+ (59... Ne4 $11 {keeps the balance.} 60. Bxe4 fxe4) 60. Kd2 $16 Rgc1 {[%csl Gc1][%cal Rc8c2]} 61. Rb7+ $2 (61. Ra3 $18) 61... Ke6 $1 $11 {[%csl Gc1][%cal Rc8c2]} 62. Rb6+ ({White should play} 62. Rb2 $11) 62... Ke7 $16 {[%csl Gc1][%cal Rc8c2]} 63. Reb3 R1c5 (63... Ng4 $16 {is a better defense.}) 64. Rb7+ Ke6 $2 (64... R5c7 65. Ke3 Ng4+ 66. Kf4 Nxh2) 65. Ke3 $2 (65. R3b6+ $18 {is the precise move to win.} R8c6 66. Rxc6+ Rxc6 67. Bxc6 Kxe5 68. Rxh7) 65... Ng4+ 66. Bxg4 $1 fxg4 {[#]} 67. Rxh7 (67. Kf4 $1 $16) 67... Rxe5+ {[%mdl 4096] Endgame KRR-KRR. The position is equal.} 68. Kd2 Rd8+ 69. Rd3 Rxd3+ 70. Kxd3 $11 {KR-KR} Kf6 71. Ra7 Re1 72. Ra5 Kg6 73. Rb5 Kf6 74. Rc5 Kg6 75. Rb5 Kf6 76. Kd2 Re4 77. Rd5 Kg6 78. Ra5 Kf6 79. Ra2 Kf5 80. Kd3 {Threatens to win with Ra5+.} Re1 81. Rf2+ Kg5 82. Re2 Rh1 83. Ke3 Ra1 84. Kf2 Rh1 85. Kg2 Ra1 86. Re5+ Kf6 87. Re2 (87. Rd5 {feels hotter.} Ra2+ 88. Kg1 Ra1+ 89. Kf2 Ra2+ 90. Ke3) 87... Kf5 88. Rf2+ Kg5 89. Rb2 Ra5 90. h3 gxh3+ 91. Kxh3 Rc5 92. Rb8 Ra5 93. Rg8+ Kh5 94. Rh8+ Kg5 95. Re8 Rb5 96. Rg8+ Kh5 97. g4+ Kh6 98. Rh8+ Kg6 99. Rg8+ Kh6 100. Kh4 Rb1 101. Rc8 Rh1+ 102. Kg3 {White threatens Rh8+ and mate.} Rg1+ 103. Kf3 Ra1 104. Rc6+ Kg5 105. Rc5+ Kg6 106. Kg3 Ra8 107. Rb5 Ra7 108. Rb8 Ra1 109. Rg8+ Kh6 110. Rf8 Kg6 111. Rf3 Rb1 112. Re3 Ra1 113. Re8 Kf7 114. Rc8 Kg6 115. Rc6+ Kg5 116. Rc5+ Kg6 117. Rc8 Ra2 118. Rg8+ Kh6 119. g5+ Kh5 120. g6 Kg5 121. Kf3 Ra4 122. Ke3 Rb4 123. Kd3 Ra4 124. Kc3 Re4 125. Kd3 (125. g7 {keeps more tension.} Kf6 126. Rh8 Kxg7 127. Ra8 Re6 128. Kd4) 125... Rb4 126. Kc3 (126. g7 {looks sharper.} Kf6 127. Rd8 Kxg7 128. Rd7+ Kf8 129. Rd8+) 126... Ra4 127. Kb3 Re4 128. Kc3 Ra4 129. Kb3 Ra5 130. Kb4 Rd5 131. Kc4 Re5 132. Kd4 Rb5 133. Kc4 Ra5 134. Kb4 Ra1 135. Kc5 Ra2 136. Kd6 Ra1 137. Ke7 Ra7+ 138. Ke6 Ra6+ 139. Kf7 Ra7+ 140. Ke6 Ra1 141. Kf7 Ra7+ 142. Ke6 Ra2 143. Kf7 Ra7+ 144. Ke6 Ra5 145. Kf7 Ra7+ {Accuracy: White = 91%, Black = 89%.} 1/2-1/2

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.17"]
[Round "10.1"]
[White "Fernandes, Antonio"]
[Black "Munenga, Douglas D"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "2353"]
[BlackElo "2357"]
[Annotator "TA"]
[PlyCount "158"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,158,12,16,5,4,31,12,18,10,24,-25,33,-25,0,-31,0,-17,-17,-17,0,-35,-23,-37,0,-23,-31,-89,-101,-112,-124,-119,-115,-101,-80,-145,-117,-176,-71,-68,-61,-47,-73,-52,-66,-99,-102,-93,-96,-103,-107,-70,-79,-76,-52,-50,-37,-41,-55,-41,-47,-33,-13,-27,-33,-74,-15,-14,0,0,17,0,3,4,4,10,8,10,25,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 4. O-O e6 5. d3 Be7 6. Nbd2 h6 7. Re1 O-O {A07: Réti Opening: New York and Capablanca Systems.} 8. b3 c5 9. Bb2 Nc6 10. e4 Bh7 11. h3 {[#]} Re8 $146 (11... dxe4 $11 12. dxe4 (12. Nxe4 Nxe4 13. dxe4 Bf6 $11) 12... Qc7) ({Predecessor:} 11... Qc7 12. Nh2 dxe4 13. dxe4 Rfd8 14. Qc1 Nd4 15. a4 Rac8 16. Nc4 Nh5 17. Ng4 Bg5 {1-0 (45) Gazik,V (2431)-Hakobyan,A (2288) Porto Carras 2015}) 12. Nh2 (12. Ne5 $14) 12... Nd4 13. f4 Rc8 14. Nhf3 Qc7 15. Ne5 Rcd8 16. c3 Nc6 17. Nxc6 bxc6 18. Qe2 c4 19. d4 (19. dxc4 $15 Qb6+ 20. Kf1) 19... Rb8 $17 20. b4 {[#]} c5 $1 {[%mdl 512]} 21. dxc5 (21. bxc5 Rxb2) 21... Bxc5+ 22. Kh2 Bb6 23. Qf1 ({White should try} 23. a4) 23... Qc6 24. f5 (24. e5 $17 {is a better defense.} Bd3 25. Qh1) 24... dxe4 (24... Rbd8 $19 25. a4 dxe4 26. Qxc4 Qxc4 27. Nxc4 Bc7 28. Bxe4 Nxe4 29. Rxe4 Bxf5) 25. Nxe4 exf5 26. Nxf6+ Qxf6 27. Qxc4 Rec8 28. Qf1 Bc7 29. Qf2 f4 30. gxf4 Bxf4+ 31. Kh1 Bg6 32. a3 Qg5 33. Bc1 $1 {[%cal Rc1f4]} Bxc1 34. Raxc1 a5 35. Qd4 axb4 36. axb4 Bf5 37. Kh2 Be6 38. Qf2 Rc7 ({Black should play} 38... Rb5 $17) 39. Qg3 $11 Qe7 40. Bd5 Rbc8 41. Rc2 Qd7 42. Rg2 {[%csl Gg2][%cal Rg3g7] [#]} g5 $132 {[%mdl 2048] Black puts up resistance} 43. Bxe6 fxe6 44. Re3 Qg7 {[%cal Rc7c3]} 45. Rxe6 Rxc3 {The position is equal.} 46. Qd6 R3c6 47. Qd5 Qc7+ 48. Rd6+ Qf7 49. b5 (49. Qxf7+ {is interesting.} Kxf7 50. Rf2+ Kg7 51. Rxc6 Rxc6 52. b5) 49... Qxd5 50. Rxd5 {[%mdl 4096] Endgame KRR-KRR} Rc2 51. Rd8+ (51. Rf5 {with more complications.} R8c3 52. Rxc2 Rxc2+ 53. Kg1 Rb2 54. Rc5) 51... Rxd8 52. Rxc2 {KR-KR} Rb8 53. Rb2 Rb6 54. Kg3 Kf7 55. Kf3 Ke6 56. Ke4 h5 57. Kd4 Kd6 58. Kc4 Kc7 59. Rf2 Rg6 60. Kc5 Rg7 61. b6+ Kb7 62. Ra2 {White threatens Ra7+ and mate.} Kb8 63. Kc6 g4 64. hxg4 hxg4 65. Rf2 {[%cal Rf2f8]} Rg8 66. Rf7 g3 {White must now prevent ...Rg6+.} 67. Rb7+ Ka8 (67... Kc8 $5 68. Rc7+ $8 Kb8 69. Rb7+ Ka8 70. Ra7+ Kb8 71. Rb7+ $11) 68. Ra7+ Kb8 {...Rg6+ is the strong threat.} 69. Rb7+ Ka8 {( -> ...Rg6+)} (69... Kc8 $5 70. Rc7+ $8 Kb8 71. Rb7+ $11) 70. Ra7+ Kb8 {Hoping for ...Rg6+.} 71. Ra1 g2 72. Rg1 Rg5 73. b7 Rg6+ (73... Rg3 {seems wilder.} 74. Kd5 Kxb7 75. Ke4 Rb3 76. Rxg2 Rb4+) 74. Kd5 Kxb7 75. Ke4 Kc6 76. Kf3 Kd5 77. Rd1+ Ke5 78. Re1+ Kf5 79. Rg1 Ra6 {Accuracy: White = 82%, Black = 86%.} 1/2-1/2

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.17"]
[Round "10.2"]
[White "Cawdery, Daniel"]
[Black "Oatlhotse, Providence"]
[Result "1-0"]
[ECO "B99"]
[WhiteElo "2418"]
[BlackElo "2201"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,95,29,51,50,56,56,49,51,57,60,58,54,57,50,53,55,55,56,191,172,179,154,212,196,215,215,212,215,222,210,202,216,214,179,259,261,250,180,247,243,214,197,274,243,320,324,316,318,307,314,341,335,343,342,333,333,357,357,352,294,665,646,875,789,959,893,872,866,1541,1454,1407,1279,1802,1797,6636,6401]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Be7 9. Qf3 Qc7 10. O-O-O Nbd7 11. Be2 b5 12. Bxf6 {B99: Sicilian Najdorf: 6 Bg5 e6 7 f4 Be7 8 Qf3 Qc7 9 0-0-0 Nbd7.} Nxf6 13. e5 $1 {[%cal Re5f6]} Bb7 14. Qg3 {aiming for Ncxb5.White is slightly better.} dxe5 15. fxe5 {Hoping for Ndxb5.} Nd5 16. Nxe6 $1 ({Reject} 16. Qxg7 Bg5+ 17. Kb1 Nxc3+ 18. bxc3 O-O-O $15) 16... fxe6 17. Qg6+ $1 Kd7 {[#]} 18. Bg4 $1 {[%mdl 512]} Qxe5 19. Nxd5 {And now Bxe6+! would win.} Bxd5 {[#] This move loses the game for Black.} (19... Qg5+ $1 $14 20. Qxg5 (20. Ne3+ Kc7 $11) 20... Bxg5+ 21. Kb1 Bxd5 22. Rxd5+ Kc7 23. Rc5+ (23. Bxe6 Rad8 $14) 23... Kb6) 20. Rxd5+ $1 $18 {[%mdl 512]} Qxd5 {[#]} 21. Rd1 $1 $36 {[%mdl 2560] [#] White is really pushing.} Bg5+ {[#]} (21... Qxd1+ $1 $16 {was necessary.} 22. Kxd1 Rad8) 22. Kb1 $1 {[%mdl 512]} Qxd1+ 23. Bxd1 Bf6 24. Qf7+ {[%mdl 1024] White has strong compensation.} Kd6 25. Bf3 Rab8 26. Qa7 Rhd8 {[#]} 27. Bg4 $146 ({Predecessor:} 27. a3 a5 28. Qxa5 Ke7 29. Qc7+ Kf8 30. Bh5 Be7 31. Qe5 Bf6 32. Qxe6 Rb7 33. c3 {1-0 (40) Boll,P-Johansson,E ICCF corr 1978}) 27... Ra8 (27... b4 $142 28. Qxa6+ Ke7 29. Qxe6+ Kf8) 28. Qb6+ Ke7 29. Qxe6+ Kf8 {If Black can now play ...Re8 this consolidates a bit.} 30. Bh5 {[%csl Gh5][%cal Re6f7]} Ra7 {[#] Threatens to win with ...Re7.} 31. a3 $1 Re7 (31... Rda8 $142 32. Bg6 Re7) 32. Qxa6 Re1+ 33. Ka2 Re5 34. Bg6 Rg5 35. Be4 Kg8 36. g4 Re5 37. Bd3 Rb8 38. Qd6 Rd8 39. Qb6 Rdd5 40. Qb7 Rxd3 $2 (40... Kh8 41. h3 Kg8) 41. cxd3 {[%mdl 4096] Endgame KQ-KRB. White is clearly winning.} Kh7 42. d4 Re3 43. Qxb5 Bxd4 44. a4 {[%cal Ba3a4,Ba4a5,Ba5a6][%mdl 32]} Bf6 45. a5 Re5 46. Qd3+ g6 47. a6 Re7 48. Qd6 {Accuracy: White = 97%, Black = 45%.} 1-0

[Event "Boardwalk Pearson IM 2020"]
[Site "Port Elizabeth"]
[Date "2020.03.17"]
[Round "10.3"]
[White "Van Zyl-Rudd, Jack"]
[Black "Kayonde, Andrew"]
[Result "1/2-1/2"]
[WhiteElo "2277"]
[BlackElo "2366"]
[Annotator "NA RC"]
[PlyCount "10"]
[EventDate "2020.03.11"]
[EventType "tourn"]
[EventCountry "RSA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 8,10,18,-3,14]} 1. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:07]} e6 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:13]} c6 {[%emt 0:00:03]} 4. e4 {[%emt 0:00:12]} dxe4 {[%emt 0:00:06]} 5. Nxe4 {[%emt 0:00:07]} Bb4+ $11 {[%emt 1:32:21]} 1/2-1/2

