[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.19"]
[Round "1.1"]
[White "Rodi, Luis Ernesto"]
[Black "Stamenkovic, Dragan"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "2347"]
[BlackElo "2378"]
[Annotator "NA"]
[PlyCount "77"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 1:31:00]} c5 {[%emt 1:31:00]} 2. Nc3 {[%emt 0:00:30]} Nc6 {[%emt 0:00:00]} 3. Bb5 {[%emt 0:00:30]} Nd4 {[%emt 0:00:00]} 4. Nf3 {[%emt 0:00:30]} e6 {[%emt 0:00:00]} 5. O-O {[%emt 0:00:30]} a6 {[%emt 0:02:00]} 6. Bd3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:00]} 7. Nd5 {[%emt 0:00:00]} g6 {[%emt 0:00:00]} 8. Re1 {[%emt 0:00:00]} Bg7 {[%emt 0:00:00]} 9. c3 {[%emt 0:02:00]} d6 {[%emt 0:02:00]} 10. Ne3 {[%emt 0:00:00]} Nge7 {[%emt 0:00:00]} 11. Bc2 {[%emt 0:00:00]} e5 {[%emt 0:01:00]} 12. b3 {[%emt 0:00:00]} O-O {[%emt 0:00:00]} 13. Bb2 {[%emt 0:02:00]} f5 {[%emt 0:01:00]} 14. exf5 {[%emt 0:00:30]} gxf5 {[%emt 0:00:30]} 15. d4 {[%emt 0:00:00]} cxd4 {[%emt 0:00:00]} 16. cxd4 {[%emt 0:00:00]} e4 {[%emt 0:01:00]} 17. Nh4 {[%emt 0:01:30]} d5 {[%emt 0:00:00]} 18. g3 {[%emt 0:00:30]} Qb6 {[%emt 0:00:00]} 19. Qh5 {[%emt 0:00:00]} Be6 {[%emt 0:00:00]} 20. Rad1 {[%emt 0:00:00]} Rf7 {[%emt 0:02:00]} 21. Qg5 {[%emt 0:00:00]} Kh8 {[%emt 0:00:30]} 22. Ba3 {[%emt 0:00:00]} Rg8 {[%emt 0:00:00]} 23. Bc5 {[%emt 0:00:00]} Qc7 {[%emt 0:00:00]} 24. Qh5 {[%emt 0:00:00]} f4 {[%emt 0:00:34]} 25. Nxd5 {[%emt 0:00:00]} Bxd5 {[%emt 0:00:29]} 26. Bxe4 {[%emt 0:00:00]} Bxe4 {[%emt 0:00:23]} 27. Rxe4 {[%emt 0:00:00]} Rf6 {[%emt 0:00:53]} 28. d5 {[%emt 0:00:00]} Rh6 {[%emt 0:01:11]} 29. Qe2 {[%emt 0:00:00]} Ne5 {[%emt 0:00:30]} 30. Bxe7 {[%emt 0:00:00]} Qxe7 {[%emt 0:00:00]} 31. Nf5 {[%emt 0:00:00]} f3 {[%emt 0:00:12]} 32. Qe1 {[%emt 0:01:25]} Qf6 {[%emt 0:01:18]} 33. Nxh6 {[%emt 0:00:08]} Qxh6 {[%emt 0:00:30]} 34. h4 {[%emt 0:03:04]} Qd6 {[%emt 0:00:00]} 35. Qe3 {[%emt 0:00:37]} Rf8 {[%emt 0:00:23]} 36. Qg5 {[%emt 0:01:26]} Bf6 {[%emt 0:00:33]} 37. Qh5 {[%emt 0:00:17]} Bg7 {[%emt 0:00:28]} 38. Qg5 {[%emt 0:00:24]} Bf6 {[%emt 0:00:26]} 39. Qh5 {[%emt 0:00:05]} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.19"]
[Round "1.2"]
[White "Di Berardino, Diego Rafael"]
[Black "Cubas, Jose Fernando"]
[Result "1-0"]
[ECO "D17"]
[WhiteElo "2483"]
[BlackElo "2469"]
[Annotator "ChessBase"]
[PlyCount "41"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:09]} d5 {[%emt 0:00:36]} 2. c4 {[%emt 0:00:09]} c6 {[%emt 0:00:11]} 3. Nf3 {[%emt 0:00:36]} Nf6 {[%emt 0:00:08]} 4. Nc3 {[%emt 0:00:39]} dxc4 {[%emt 0:02:19]} 5. a4 {[%emt 0:00:11]} Bf5 {[%emt 0:00:17]} 6. Ne5 {[%emt 0:01:01]} Nbd7 {[%emt 0:00:36]} 7. Nxc4 {[%emt 0:00:14]} Nb6 {[%emt 0:00:28]} 8. Ne5 {[%emt 0:00:55]} Nfd7 {[%emt 0:00:07]} 9. e4 {[%emt 0:02:18]} Nxe5 {[%emt 0:12:10]} 10. exf5 {[%emt 0:00:14]} Ned7 {[%emt 0:00:01]} 11. a5 {[%emt 0:00:27]} Nc8 {[%emt 0:00:09]} 12. a6 {[%emt 0:06:49]} bxa6 {[%emt 0:00:25]} 13. Bxa6 {[%emt 0:00:54]} Nd6 {[%emt 0:01:04]} 14. Qf3 {[%emt 0:21:10]} Qb6 {[%emt 0:03:58]} 15. O-O {[%emt 0:04:21]} g6 {[%emt 0:05:33]} 16. Bf4 {[%emt 0:05:53]} Nxf5 {[%emt 0:05:03]} 17. Nb5 {[%emt 0:08:31]} e5 {[%emt 0:05:01]} 18. Rfc1 {[%emt 0:10:41]} Nxd4 {[%emt 0:05:41]} 19. Nxd4 {[%emt 0:03:30]} Qxd4 {[%emt 0:07:39]} 20. Qxc6 {[%emt 0:01:44]} Rd8 {[%emt 0:00:05]} 21. Bxe5 {[%emt 0:03:23]} 1-0

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.19"]
[Round "1.3"]
[White "El Debs, Felipe de Cresce"]
[Black "Supi, Luis Paulo"]
[Result "*"]
[ECO "B53"]
[WhiteElo "2553"]
[BlackElo "2581"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,23,17,0,23,23,27,23,14,5,1,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. c4 f5 8. exf5 {Black must now prevent Nh4.} Qa5+ {B53: Sicilian: 2...d6: Lines with Qxd4.} (8... Bxf3 $5 9. gxf3 Qa5+ 10. Nc3 Qxf5 $11) 9. Nbd2 Qxf5 10. Qe3 e5 11. O-O Be7 $1 12. c5 {[#] An uneventful encounter.  Weighted Error Value: White=0.04 (flawless) /Black=0.04 (flawless)} {Predecessor:} O-O-O $146 13. cxd6 Bxd6 14. Nc4 Bxf3 15. Qxf3 Qxf3 16. gxf3 Bc7 17. Be3 Kb8 18. Rfd1 {½-½ (18) Ni,H (2701)-Bluvshtein,M (2558) Edmonton 2009} *

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.19"]
[Round "1.3"]
[White "Pereira, Silvio Cunha"]
[Black "Quintiliano Pinto, Renato R."]
[Result "1/2-1/2"]
[ECO "B53"]
[WhiteElo "2217"]
[BlackElo "2468"]
[Annotator "ChessBase"]
[PlyCount "83"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:11]} c5 {[%emt 0:00:14]} 2. Nf3 {[%emt 0:00:07]} d6 {[%emt 0:00:09]} 3. d4 {[%emt 0:00:06]} cxd4 {[%emt 0:00:05]} 4. Qxd4 {[%emt 0:00:06]} Nc6 {[%emt 0:00:13]} 5. Bb5 {[%emt 0:03:19]} Bd7 {[%emt 0:00:26]} 6. Bxc6 {[%emt 0:00:15]} Bxc6 {[%emt 0:00:04]} 7. c4 {[%emt 0:00:07]} f5 {[%emt 0:01:01]} 8. exf5 {[%emt 0:01:45]} Qa5+ {[%emt 0:00:09]} 9. Nbd2 {[%emt 0:00:10]} Qxf5 {[%emt 0:00:09]} 10. Qe3 {[%emt 0:01:01]} e5 {[%emt 0:06:22]} 11. O-O {[%emt 0:03:37]} Be7 {[%emt 0:00:45]} 12. c5 {[%emt 0:04:00]} O-O-O {[%emt 0:05:06]} 13. cxd6 {[%emt 0:02:24]} Bxd6 {[%emt 0:00:10]} 14. Nc4 {[%emt 0:01:06]} Bxf3 {[%emt 0:03:23]} 15. Qxf3 {[%emt 0:06:13]} Qxf3 {[%emt 0:04:52]} 16. gxf3 {[%emt 0:04:58]} Bc7 {[%emt 0:18:40]} 17. Bg5 {[%emt 0:00:41]} Nf6 {[%emt 0:01:52]} 18. Rac1 {[%emt 0:00:28]} Kb8 {[%emt 0:03:36]} 19. Rfd1 {[%emt 0:03:21]} Rhe8 {[%emt 0:16:48]} 20. h3 {[%emt 0:09:15]} Rxd1+ {[%emt 0:10:01]} 21. Rxd1 {[%emt 0:00:30]} Nh5 22. Nd2 {[%emt 0:00:30]} h6 {[%emt 0:01:00]} 23. Be3 {[%emt 0:00:30]} Rd8 {[%emt 0:00:30]} 24. Kg2 {[%emt 0:00:30]} Rd6 {[%emt 0:00:30]} 25. Rc1 {[%emt 0:00:30]} Nf6 {[%emt 0:00:30]} 26. Kf1 {[%emt 0:00:30]} Nd5 {[%emt 0:00:30]} 27. Ke2 {[%emt 0:00:30]} b6 {[%emt 0:00:30]} 28. Ne4 {[%emt 0:00:30]} Rd7 {[%emt 0:00:30]} 29. a3 {[%emt 0:00:30]} Kc8 {[%emt 0:00:30]} 30. Nc3 {[%emt 0:00:30]} Nxc3+ {[%emt 0:00:30]} 31. Rxc3 {[%emt 0:00:30]} Rf7 {[%emt 0:00:30]} 32. Rc6 {[%emt 0:00:30]} Kd7 {[%emt 0:00:30]} 33. Rg6 {[%emt 0:00:30]} Bd8 {[%emt 0:00:30]} 34. Kd3 {[%emt 0:00:30]} Bf6 {[%emt 0:00:30]} 35. Ke4 {[%emt 0:00:30]} Ke6 {[%emt 0:00:30]} 36. Rg1 {[%emt 0:00:30]} Rc7 {[%emt 0:00:30]} 37. Rc1 {[%emt 0:00:30]} Rxc1 {[%emt 0:00:30]} 38. Bxc1 {[%emt 0:00:30]} b5 {[%emt 0:00:30]} 39. b3 {[%emt 0:00:30]} Bh4 {[%emt 0:00:30]} 40. Be3 {[%emt 0:00:30]} a6 {[%emt 0:00:30]} 41. Bc5 {[%emt 0:30:30]} g6 {[%emt 0:30:30]} 42. a4 {[%emt 0:00:30]} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.19"]
[Round "1.4"]
[White "Alboredo, Julia"]
[Black "Languidey, Simon Alejandro"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2216"]
[BlackElo "2403"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,118,18,23,14,17,4,8,0,10,0,31,15,25,24,29,33,28,17,22,0,0,0,15,14,12,0,20,16,20,10,21,12,29,0,0,0,0,0,0,0,0,0,19,20,25,24,20,0,0,0,0,-43,-46,-68,0,0,0,0,0,0,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-25,-19,-19,-18,-25,-25,-39,-26,-29,-12,-44,-25,-33,-14,-14,-14,-14,-14,-25,-14,-14,-14,-14,-14,-63,-63,-63,-63,-74,-63,-88,-62,-63,-8,-762,-738,-703,-692]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. O-O h6 7. a4 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} a5 $1 {Prevents b4. The main line 7...a5 scores better than 7...a6.} 8. Nbd2 O-O 9. Bb3 {The position is equal.} Ba7 10. h3 Ne7 11. Re1 Ng6 {[%cal Oc8h3]} 12. Nf1 {[#]} Nh5 $146 ({Predecessor:} 12... c6 13. d4 exd4 14. Nxd4 Re8 15. Ng3 d5 16. exd5 Rxe1+ 17. Qxe1 Bxd4 18. cxd4 Nxd5 {½-½ (42) Movsesian,S (2633)-Krysa,L (2529) Teplice 2018}) 13. d4 {[%cal Of3e5]} Qf6 14. Ne3 Nhf4 15. Nd5 Nxd5 16. Bxd5 Nf4 17. Bxf4 Qxf4 18. Re3 Kh7 19. Qd2 c6 20. Bb3 Qf6 21. Rd1 Be6 22. Bc2 Kg8 23. Nh2 Rab8 24. Rf3 Qg5 25. Qd3 g6 26. Rg3 Qf4 27. Ng4 Bxg4 28. Rxg4 Qf6 29. Bb3 Kg7 30. Rd2 Rbe8 31. Rg3 (31. d5 $11) 31... d5 $1 $15 {...exd4 is the strong threat.} 32. exd5 exd4 (32... e4 $1 $15 33. Qc2 Bb8) 33. Rf3 $11 ({Wrong is} 33. cxd4 $2 Re1+ 34. Kh2 Bb8 $19) 33... Re1+ 34. Kh2 Qe5+ 35. g3 {[%cal Rc3d4]} c5 36. cxd4 cxd4 37. Rd1 $132 {[%mdl 2048] White is not holding back} Rxd1 38. Qxd1 h5 39. h4 Bc5 40. Rf4 Re8 41. Qd3 (41. d6 f5 $15) 41... Re7 42. Qc4 Qd6 43. Qd3 f5 44. Qd2 b6 45. Kg2 Qe5 46. Qd3 Qe2 (46... Qf6 {seems wilder.} 47. Bc4 Re1 48. Qd2 Rb1 49. Qe2 Bb4) 47. Qc4 Qxc4 (47... Kh6 {keeps more tension.} 48. d6 Qxc4 49. Bxc4 Rd7 50. Rf3 Rxd6 51. Rd3 Bb4) 48. Bxc4 $15 {[%mdl 4096] Endgame KRB-KRB} Kf6 49. Rf3 Re1 50. Rd3 $1 Re2 51. b3 ({But not} 51. d6 Rxb2 52. d7 Ke7 $17) 51... Rc2 52. Kf1 Ke5 53. f3 (53. Rd1 $11 {should be considered.}) 53... Bb4 54. Rd1 Bc3 55. Kg1 Bd2 {[#] aiming for ...Be3+.} 56. Kg2 Be3+ 57. Kh3 f4 {Black is more active.} ({Better is} 57... Bf2 $15) 58. d6 $2 {[%mdl 8192]} (58. g4 $11) 58... fxg3 $19 {( -> ...Rh2+)} 59. f4+ Bxf4 {Weighted Error Value: White=0.22 (precise) /Black=0.08 (flawless)} 0-1

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.19"]
[Round "1.5"]
[White "El Debs, Felipe de Cresce"]
[Black "Supi, Luis Paulo"]
[Result "1/2-1/2"]
[ECO "E90"]
[WhiteElo "2553"]
[BlackElo "2581"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,86,30,35,37,43,43,53,30,45,39,97,0,34,30,23,34,27,31,22,8,10,15,46,31,56,23,58,50,49,0,0,-5,-20,-33,-33,-26,-28,-21,97,99,104,126,114,112,165,158,160,163,152,120,121,131,141,136,142,144,231,151,156,150,160,77,67,12,72,85,83,73,71,0,229,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Bd3 Bg4 7. Be2 $1 {[%mdl 4] is recently more successful than 7.h3. E90: King's Indian: Classical: Early deviations and 6 h3.} Nc6 8. d5 Bxf3 9. Bxf3 {[#] White is slightly better.} Na5 $146 ({Predecessor:} 9... Ne5 10. Be2 e6 11. O-O Re8 12. Bg5 c5 13. dxe6 Rxe6 14. f4 Nc6 15. f5 Re5 {1-0 (30) Horka,S (1469)-Phillips,D (1251) IECC email 2014}) 10. Be2 {[%cal Oe4e5]} Nd7 (10... c6 $14) 11. Be3 (11. Bd2 $1 $16) 11... Nb6 (11... Bxc3+ $5 12. bxc3 e5 $11) 12. Bd4 $1 Bxd4 (12... Nbxc4 $2 13. Bxg7 Kxg7 14. b4 $18) (12... Naxc4 $2 13. Bxg7 Kxg7 14. Bxc4 $16) 13. Qxd4 {Strongly threatening c5.} c5 14. dxc6 e5 15. Qd2 {[%cal Oc6c7] Threatens to win with c7!} bxc6 16. b3 Qe7 17. O-O Rfd8 18. Rfd1 Qf8 19. Qg5 c5 20. Nd5 (20. f4 $14) 20... Nc6 $11 21. Nf6+ {[%cal Bd5f6,Bf6g4,Bg4f6][%mdl 32]} Kg7 22. Ng4 {Prevents h6.} Qe7 23. Qh6+ Kh8 24. Rd3 {Black must now prevent Rh3.} f5 (24... Rg8 $11) 25. exf5 $16 gxf5 26. Nf6 $40 {[%mdl 128] White wants a kill.} Qg7 27. Qh4 {White is much more active. Black has bad knights.} Nd4 {[#]} (27... Nd7 $16 28. Rxd6 Nd4 29. Nxh7 Kg8) 28. Rh3 $1 $18 {[%cal Rh4h7]} h6 (28... Nxe2+ 29. Kf1 h6 30. Kxe2 $16) 29. Bf3 {Rg3 is the strong threat. Chess con chili.} (29. Qxh6+ $2 Qxh6 30. Rxh6+ Kg7 31. Rh7+ Kxf6 $19) 29... Rf8 30. Bxa8 ({Not} 30. Qxh6+ Qxh6 31. Rxh6+ Kg7 32. Rh7+ (32. Bxa8 $2 Kxh6 33. Ne4 Rxa8 $19) 32... Kxf6 $17) 30... Rxf6 31. Bf3 e4 {[#]} 32. Rg3 Qf8 33. Bh5 d5 (33... Nd7 $16 34. Rb1 a5) 34. Qf4 {aiming for Qc7.} Ne6 {Prevents Qc7.} 35. Qe5 Ng7 {[#]} 36. Rxg7 Qxg7 $16 37. cxd5 (37. Re1 $14) 37... Rd6 38. Qe8+ Kh7 39. Rd1 {And now Bf7 would win.} Rxd5 40. Qe6 ({Better is} 40. Qb8 $16) 40... Rxd1+ $11 41. Bxd1 Qd7 {The position is equal.} 42. Qxd7+ Nxd7 43. f3 exf3 {Blacks defense is rewarded with a draw.  Weighted Error Value: White=0.17 (very precise) /Black=0.16 (very precise)} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.19"]
[Round "1.5"]
[White "Pereira, Silvio Cunha"]
[Black "Quintiliano Pinto, Renato R."]
[Result "*"]
[ECO "E90"]
[WhiteElo "2217"]
[BlackElo "2468"]
[Annotator "ChessBase"]
[PlyCount "25"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:08]} Nf6 {[%emt 0:00:05]} 2. c4 {[%emt 0:00:12]} g6 {[%emt 0:00:07]} 3. Nc3 {[%emt 0:00:10]} Bg7 {[%emt 0:00:01]} 4. e4 {[%emt 0:00:12]} d6 {[%emt 0:00:01]} 5. Nf3 {[%emt 0:00:13]} O-O {[%emt 0:00:03]} 6. Bd3 {[%emt 0:00:08]} Bg4 {[%emt 0:02:17]} 7. Be2 {[%emt 0:00:14]} Nc6 {[%emt 0:05:14]} 8. d5 {[%emt 0:00:37]} Bxf3 {[%emt 0:00:19]} 9. Bxf3 {[%emt 0:00:10]} Na5 {[%emt 0:01:32]} 10. Be2 {[%emt 0:00:30]} Nd7 {[%emt 0:01:32]} 11. Be3 {[%emt 0:01:33]} Nb6 {[%emt 0:02:09]} 12. Bd4 {[%emt 0:02:03]} Bxd4 {[%emt 0:02:17]} 13. Qxd4 {[%emt 0:00:21]} *

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.21"]
[Round "3.1"]
[White "Di Berardino, Diego Rafael"]
[Black "Stamenkovic, Dragan"]
[Result "1/2-1/2"]
[ECO "D66"]
[WhiteElo "2483"]
[BlackElo "2378"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,81,39,26,35,21,25,6,27,20,29,26,30,33,26,0,0,7,5,5,5,0,0,0,0,0,25,0,0,0,0,-23,-12,-33,-5,0,0,0,0,0,0,0,0,0,22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Be7 7. Bd3 O-O 8. O-O h6 9. Bh4 dxc4 10. Bxc4 b5 11. Bd3 Bb7 12. Rc1 a6 13. Bxf6 Nxf6 {D66: Queen's Gambit Declined: Classical: Main Line (7 Rc1 c6 8 Bd3).} 14. Ne4 {Inhibits c5.} Nd7 15. Bb1 f5 (15... Rc8 $5 {[%cal Rc6c5]}) 16. Nc5 Nxc5 17. dxc5 Qxd1 $1 18. Rfxd1 {[#] aiming for Rd7.} Rfd8 {[%cal Oe7c5] Prevents Rd7.} 19. Nd4 Kf7 20. a3 {[#]} Bf6 $146 ({Predecessor:} 20... Kf6 21. f4 a5 22. Ba2 e5 23. fxe5+ Kxe5 24. h4 g6 25. h5 gxh5 26. Rf1 Rf8 {1-0 (34) Korinek,J (1643)-Sirotkin,E (1354) LSS email 2014}) 21. Ba2 {[%csl LRe6,LRf5]} Bxd4 22. exd4 Bc8 23. f4 Ra7 24. Kf2 a5 25. Rc3 Rad7 26. Ke3 Kf6 27. Rd2 g5 {[#] Strongly threatening ...gxf4+.} 28. Rcd3 gxf4+ 29. Kxf4 {The position is equal.} Rxd4+ 30. Rxd4 e5+ 31. Ke3 Rxd4 32. Rxd4 exd4+ 33. Kxd4 $11 {[%mdl 4096] Endgame KB-KB} Bd7 34. Bb3 Be6 35. Bd1 Bd5 36. g3 Ke6 37. Be2 Bg2 38. h4 Bd5 39. b4 axb4 40. axb4 Bg2 41. Bd1 {An interesting draw.  Weighted Error Value: White=0.08 (flawless) /Black=0.04 (flawless)} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.21"]
[Round "3.2"]
[White "El Debs, Felipe de Cresce"]
[Black "Rodi, Luis Ernesto"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2553"]
[BlackElo "2347"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,101,12,33,18,10,16,54,47,50,21,23,13,18,16,16,8,6,6,6,6,9,12,26,14,17,11,20,0,0,0,11,10,81,34,31,33,29,29,33,31,98,51,37,0,106,91,113,118,118,128,129,109,118,127,108,93,171,170,185,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 c5 6. O-O Nc6 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. Nbd2 c3 10. bxc3 O-O 11. Nb3 Be7 12. Nfd4 Bd7 {12...Nxd4 is the modern continuation.} 13. a4 {E04: Open Catalan: 5 Nf3.} Rfd8 14. Nb5 {[#]} Ne8 $146 ({Predecessor:} 14... Rac8 15. Be3 Nd5 16. Bxd5 exd5 17. Rxd5 Be6 18. Rxd8+ Rxd8 19. N3d4 Nxd4 20. Nxd4 Bc4 {1-0 (68) Nihal,S (2620)-Petrosyan,M (2625) Veliko Gradiste 2021}) 15. Be3 {White is slightly better.} a6 16. N5d4 Nf6 17. Nxc6 $1 Bxc6 18. Bxc6 bxc6 19. c4 Kf8 20. Na5 Rxd1+ 21. Rxd1 Ne4 22. Nxc6 Rc8 23. Nxe7 Kxe7 $11 {[%mdl 4096] Endgame KRB-KRN} 24. Rc1 Nc5 25. Ra1 Nd7 26. Rc1 Nc5 27. Kg2 Kd6 (27... Nxa4 $11 28. c5 a5) 28. Rd1+ (28. Rb1 $16) 28... Ke7 $14 29. Ra1 Nd7 30. Rc1 Nc5 31. Kf3 Kd6 (31... Nxa4 $14 32. c5 a5) 32. Rd1+ ({White should play} 32. Rb1 $16) 32... Ke7 33. Rc1 (33. Rb1 $14) 33... Kd6 $16 34. Bxc5+ (34. Rb1 {looks sharper.} Nxa4 35. Rb7 e5 36. Rxf7 Rc7 37. Rf8) 34... Kxc5 {KR-KR} 35. Rb1 {Prevents Rb8.} Rc7 36. Ke3 Rd7 37. a5 Kxc4 38. Rb6 Ra7 39. Ke4 Kc5 (39... Kc3 $16 {was called for.}) 40. g4 $18 f5+ 41. Ke5 $2 {[#]} ({Only move:} 41. gxf5 $18 exf5+ 42. Kf4 (42. Kxf5 Rf7+ 43. Ke5 Rxf2 $11)) 41... fxg4 $11 {The position is equal.} 42. Kxe6 Ra8 43. Kf7 Ra7+ $1 44. Ke6 {[#] e4 is the strong threat.} Ra8 45. Rb2 Rf8 46. e4 {aiming for e5.} Kd4 47. Rb4+ Kc5 48. Rb7 Rxf2 49. Rxg7 h5 50. Rg5+ Kd4 51. Rxh5 {Weighted Error Value: White=0.15 (very precise) /Black=0.09 (flawless)} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.21"]
[Round "3.3"]
[White "Alboredo, Julia"]
[Black "Cubas, Jose Fernando"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "2216"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "125"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,124,56,56,44,53,41,44,51,50,43,70,57,72,31,61,-13,120,114,141,135,134,110,123,109,111,82,79,73,91,94,116,83,179,78,71,81,66,74,93,59,60,-23,-24,-24,-25,-16,-24,-29,-18,-23,184,148,639,320,307,320,520,289,1164,694,737,710,879,898,807,648,29966,322,312,247,268,270,246,239,338,334,299,313,565,370,393,0,0,-50,160,150,175,175,366,139,448,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 b6 2. d4 Bb7 3. Nc3 e6 4. a3 g6 5. Nf3 Bg7 6. h4 {B00: Queen's Fianchetto Defence, Nimzowitsch Defence.} h6 $1 7. Bf4 d6 {[#]} 8. Qd2 $146 {White is slightly better.} ({Predecessor:} 8. Bc4 Nd7 9. Qe2 a6 10. h5 g5 11. Bg3 Ne7 12. O-O-O b5 13. Ba2 Nb6 14. Kb1 {1-0 (27) Skalkotas,N (2012)-Mengoulis,K (1691) Athens 2018}) 8... Nd7 9. O-O-O Ne7 10. Kb1 a6 11. g4 ({White should play} 11. Bd3 $16) 11... b5 12. d5 (12. Qd3 $14) 12... e5 (12... exd5 $1 $11 13. Nxd5 Nxd5 14. exd5 Nb6) 13. Be3 $16 Nb6 14. Ne1 Bc8 15. Rg1 Bd7 16. f4 exf4 17. Bxf4 Qc8 18. Be2 Nc4 19. Bxc4 bxc4 20. g5 {[%cal Rg5h6]} Rb8 (20... h5 $16) 21. Ka1 (21. gxh6 $18 {is more deadly.} Bxh6 22. Qd4 $1 (22. Bxh6 Qb7 $16)) 21... Qb7 {[%csl Gb8][%cal Rb7b2]} 22. Rb1 {[%cal Rg5h6]} h5 23. Be3 c5 {Inhibits Bd4.} 24. dxc6 Nxc6 25. e5 (25. Bf4 $14) 25... Nxe5 $11 {next ...0-0 is good for Black.} 26. Qxd6 Be6 27. Ne4 {[%cal Oe3c5]} Rd8 28. Bb6 {[%csl Gb6][%cal Rd6d8]} Rd7 29. Qc5 {[%cal Oe1g2]} Nc6 $2 (29... Qxe4 $2 30. Qc8+ Ke7 31. Bc5+ Rd6 32. Qc7+ Ke8 33. Bxd6 $18) (29... Qc6 $11) 30. Nf3 $1 $18 {And now Rbd1 would win.} Nd4 $2 {[%mdl 8192]} (30... Ne7 $16 31. Nf6+ (31. Nd6+ Rxd6 32. Qxd6 O-O $14) 31... Bxf6 32. gxf6 Nc8) 31. Nd6+ Rxd6 32. Qxd6 {[%csl Gb6][%cal Rd6d8]} Nc6 {Inhibits Qd8+.} (32... Nxc2+ 33. Ka2 c3+ 34. b3 Qd7 35. Qb8+ Qc8 36. Qxc8+ Bxc8) 33. Nd4 Qxb6 $2 (33... Bxd4 34. Bxd4 Nxd4 35. Qxd4 O-O) 34. Nxc6 {[%csl Gc6][%cal Rd6e7]} Bf8 {Inhibits Qe7+.} 35. Qe5 Rg8 36. Qe4 Bc5 37. Rgd1 Kf8 {[#]} 38. Rd8+ $2 (38. Qe5 $1 {mates} Be7 (38... Bf2 39. Rd8+) 39. Nxe7 Kxe7 40. Qf6+ Kf8 41. Rd2 Bf5 42. Qxb6 Kg7 43. Qf6+ Kh7 44. Qxf7+ Rg7 45. Qf8) 38... Kg7 39. Qe5+ Kh7 40. Rxg8 Kxg8 41. Qe4 Qb7 (41... Kh7 {was called for.} 42. c3 Bf5 43. Qxc4 Be6) 42. Rd1 Kh7 43. Rd8 {[%cal Oe4e5] Inhibits Bf8. Threatening mate with Qe5!} Bb6 $2 (43... c3 44. bxc3 Bxa3) 44. Rd6 Bc5 45. Rd1 (45. Rxe6 $18 {Intending Re8 and mate.} fxe6 46. Qxe6) 45... c3 $11 {[%csl Gc3][%cal Rb7b2]} 46. b4 (46. bxc3 $11 Bxa3 47. Rb1) 46... a5 $2 {[#]} 47. Qe5 $1 $16 {[%cal Od1d8] Rd8! would kill now.} Bxb4 48. Nd8 (48. axb4 $6 Qxc6 49. Qxa5 Qe4 $14) (48. Nxb4 axb4 49. axb4 Qxb4 50. Qh8+ Kxh8 $11) (48. Rd8 $2 Bf8 $1 {[%mdl 512]} 49. Qb8 (49. Qxc3 $2 Bg7 $19) 49... Qxc6 $19) 48... Qf3 (48... Bd6 {might work better.} 49. Qxc3 (49. Nxb7 Bxe5 50. Nxa5 Kg7 $16) 49... Qc8 50. Qxc8 Be5+ 51. Kb1 Bxc8 52. Nxf7 Bg3) 49. Rb1 $2 {Really sharp! Active counter play!} (49. Re1 $18 Bxa3 50. Nxe6 fxe6 51. Qe4 (51. Qxa5 Bf8 $16) (51. Qc7+ Kg8 $18)) 49... Bc4 {[%mdl 8192] [#]} (49... Bd5 $16) 50. axb4 $2 ({White must play} 50. Qd4 $1 $18 {[%cal Rd4c4]} Bd3 {[#]} 51. Nxf7 $1 {[%mdl 512]} (51. axb4 Bxc2 52. bxa5 Bxb1 $16) (51. cxd3 Bf8 $18) (51. Qxd3 $2 Qxd3 52. cxd3 Bxa3 $19) 51... Qxf7 52. Qxd3 Bxa3 53. Rf1 (53. Qxc3 Bf8 $16)) 50... axb4 $11 {( -> ...Qa8+). The position is equal.} 51. Qa5 {Prevents Qa8. Hoping for Qa4.} b3 $1 52. cxb3 c2 {[%csl LRb1,LRb3]} 53. bxc4 cxb1=Q+ 54. Kxb1 Qb3+ 55. Ka1 {Black must now prevent c5.} Qxc4 56. Qa7 Qc1+ 57. Ka2 Qd2+ 58. Kb3 Qd3+ 59. Kb4 Qxd8 60. Qxf7+ Kh8 61. Qxg6 Qd4+ 62. Kb5 Qc5+ 63. Kxc5 {Weighted Error Value: White=0.82/Black=0.62} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.21"]
[Round "3.4"]
[White "Pereira, Silvio Cunha"]
[Black "Supi, Luis Paulo"]
[Result "0-1"]
[ECO "B53"]
[WhiteElo "2217"]
[BlackElo "2581"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,102,-12,0,0,5,-8,-16,-49,-56,-54,-56,-53,-54,-54,-46,-58,-52,-38,-28,-91,-30,-99,-93,-131,-122,-171,-128,-176,-144,-165,-164,-160,-172,-165,-160,-172,-172,-182,-176,-177,-166,-174,-167,-183,-206,-205,-199,-254,-232,-244,-262,-295,-286,-331,-308,-306,-266,-291,-291,-282,-286,-481,-475,-472,-460,-471,-471,-471,-465,-481,-464,-464,-464,-534,-511,-507,-505,-490,-477,-732,-732,-732,-725,-732,-725,-718,-707,-692,-692,-678,-565,-536,-474]} 1. e4 {[%cal Be2e4,Be4e5][%mdl 32]} c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nf6 5. e5 Nc6 6. Bb5 Qa5+ $1 (6... dxe5 7. Qxd8+ Kxd8 8. Bxc6 bxc6 9. Nxe5 $14) 7. Nc3 {B53: Sicilian: 2...d6: Lines with Qxd4.} Qxb5 $1 8. Nxb5 Nxd4 9. Nfxd4 {The position is equal.} dxe5 10. Nc7+ Kd7 $1 11. Nxa8 exd4 12. Bf4 e5 13. Bxe5 Bd6 $1 14. Bxd4 Re8+ 15. Kf1 (15. Be3 $1 $11) 15... Kc6 {[#]} (15... b6 $17 16. Nxb6+ axb6) 16. f3 $146 (16. Bxa7 $11 {keeps the balance.} Be6 17. Nb6) ({Predecessor:} 16. Bxa7 Nd5 17. c4 Nf4 18. Re1 Be6 19. Nb6 Nd3 20. Rd1 Nxb2 21. Rxd6+ Kxd6 22. Nd5 Nxc4 23. Ne3 b6 24. Ke2 Ra8 25. Rd1+ Kc5 {0-1 (25) Meyer,J (1889)-Bjerre,J (2503) Helsingor 2019}) 16... Be6 {Black is more active. White is on the road to losing.} 17. Kf2 {[%cal Od4a7]} Rxa8 18. Rhe1 (18. c4 $17 {was worth a try.}) 18... b5 (18... Bxh2 $19 19. Be5 Bxe5 20. Rxe5 a5) 19. a3 (19. a4 $17) 19... Nd5 20. Rad1 g5 ({Much less strong is} 20... Bxh2 21. g3 $16) 21. g3 h5 22. Be5 Be7 23. Bd4 a5 {[%cal Ba7a5,Ba5a4][%mdl 32]} 24. Rd2 Rg8 25. Rde2 Kd7 26. Rd1 a4 27. Re4 Kc6 28. Rde1 Rg6 29. Rc1 (29. R1e2 $142) 29... Nb6 $19 30. b3 Bxa3 31. Ra1 Bd6 ({Not} 31... axb3 32. Rxa3 bxc2 33. Rc3+ Bc4 34. Rxc2 $16) 32. Bxb6 Kxb6 33. bxa4 Bc5+ 34. Kg2 b4 35. Rd1 Rg8 36. Re5 $2 {[#]} (36. h4) 36... Ra8 {Black is clearly winning.} 37. Ra1 Bd4 {[%csl LRa1,LRe5] This bishop pair is nice.} 38. Rb5+ Kc6 39. Rb1 Bc5 40. R5xb4 Bxb4 41. Rxb4 {[%mdl 4096] Endgame KRB-KR} Rd8 42. h4 Rd2+ 43. Kf1 g4 44. fxg4 Bxg4 45. a5 (45. Rb2 $142 Rd1+ 46. Kg2) 45... Rxc2 46. Rb6+ Kc7 47. Rf6 Be6 48. Rh6 Rc5 49. a6 Kb6 50. Kf2 Kxa6 51. Ke3 Kb7 {Weighted Error Value: White=0.25 (precise) /Black=0.06 (flawless)} 0-1

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.21"]
[Round "3.5"]
[White "Quintiliano Pinto, Renato R."]
[Black "Languidey, Simon Alejandro"]
[Result "1-0"]
[ECO "D39"]
[WhiteElo "2468"]
[BlackElo "2403"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,56,9,20,7,7,16,40,36,47,33,51,39,53,59,51,33,81,58,75,78,100,88,111,98,95,90,135,137,146,81,106,112,304,325,29981,-886,219]} 1. d4 e6 2. c4 Nf6 3. Nc3 d5 4. Nf3 dxc4 5. e4 {[%cal Be2e4,Be4e5][%mdl 32]} Bb4 6. Bg5 c5 7. e5 cxd4 8. Nxd4 Bxc3+ 9. bxc3 Qa5 10. exf6 Qxg5 11. fxg7 Qxg7 12. Qd2 {D39: Queen's Gambit Declined: Ragozin Defence with 5 Bg5 dxc4.} O-O 13. Bxc4 e5 (13... Qxg2 $2 14. O-O-O Qg6 15. Rhg1 $18) 14. Ne2 {White is slightly better.} Nc6 15. O-O Bf5 {[#]} 16. Qe3 $146 ({Predecessor:} 16. Ng3 Bg6 17. h4 h6 18. Qe3 Kh8 19. h5 Bh7 20. Rae1 Rae8 21. Bd5 f5 22. f4 {0-1 (40) Antova,G (2306)-Guichard,P (2407) Monte Carlo 2019}) 16... Rad8 17. Ng3 Bg6 18. h4 {[%cal Bh2h4,Bh4h5][%mdl 32]} h6 (18... Na5 $1 $14 19. Bb5 f5 20. Qxa7 Qc7) 19. Rae1 Rfe8 20. Qf3 Rd6 21. h5 Bh7 22. Ne4 {To avoid Qf6} Bxe4 23. Rxe4 {[#] aiming for Rg4.} Qf6 (23... Rf6 $142 24. Qe2 Rf5) 24. Qe3 $16 {Black must now prevent f4.} Red8 25. Be2 {Inhibits Rd1.} (25. f4 $142 {[%cal Rf4e5]} Rd1 26. fxe5 Rxf1+ 27. Bxf1) 25... Qe7 26. f4 {[%cal Bf2f4,Bf4e5][%mdl 32]} Rf6 $2 {[#]} (26... Re6 $16) 27. fxe5 $18 Rf3 (27... Rxf1+ $18 28. Kxf1 Qe6) 28. Rf2 $4 {[%mdl 8192]} Rxf2 $4 {[%mdl 8192] Weighted Error Value: White=0.47/Black=0.62} (28... Rxe3 $19 {and all is fine.} 29. Rxe3 Qc5 30. Rg3+ Kh8) 1-0

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.22"]
[Round "4.1"]
[White "Stamenkovic, Dragan"]
[Black "Languidey, Simon Alejandro"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2378"]
[BlackElo "2403"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,79,19,22,16,11,13,14,10,21,16,16,16,23,13,19,13,27,0,5,0,0,0,9,-9,32,17,31,25,25,26,38,29,37,34,54,54,57,60,54,54,54,54,65,53,62,54,83,74,78,34,39,44,63,0,0,0,0,0,0,0,78,64,75,68,93,91,75,0,3,7,6,0]} 1. d4 Nf6 2. Bg5 e6 3. e3 h6 4. Bh4 d6 5. Bd3 Nbd7 6. c4 {A45: Trompowsky Attack.} c5 7. Ne2 Be7 8. Nbc3 O-O 9. O-O b6 {[#]} 10. Rc1 $146 ({Predecessor:} 10. f3 Bb7 11. Rc1 Rc8 12. b3 cxd4 13. Nxd4 Ne5 14. Be2 a6 15. f4 Ng6 16. Bxf6 Bxf6 {1-0 (66) Mazzilli,P (2340)-Georgiev,K (2671) Arvier 2012}) 10... Bb7 11. Bb1 Rc8 12. Qd3 cxd4 13. Qxd4 a6 14. b3 Qc7 15. Rfd1 Rfd8 16. Bg3 Qc6 (16... Ne5 $11 {might be stronger.}) 17. f3 {Active counter play!} Nc5 18. e4 Qe8 19. Kh1 Nh5 20. Bf2 Bg5 {[#] Threatens to win with ...e5.} 21. Be3 Be7 22. Qd2 Nf6 23. Nd4 Ncd7 24. Qf2 Rb8 25. Qg3 Kh8 26. Qh3 Bf8 27. Re1 Ne5 28. Rcd1 Rbc8 {[%cal Ob6b5]} 29. Nde2 ({Better is} 29. g4 $16) 29... b5 $14 30. cxb5 axb5 31. Bd4 (31. Bb6 $14) 31... b4 32. Na4 Ba6 33. Ng3 Bb5 34. Nb6 Rc6 (34... Rb8 $11 {remains equal.}) 35. Nh5 Nxh5 36. Qxh5 f6 37. Qxe8 Rxe8 38. Rc1 ({White should try} 38. f4 $16) 38... Rb8 39. Rxc6 Nxc6 40. Be3 {Weighted Error Value: White=0.09 (flawless) /Black=0.10 (very precise)} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.22"]
[Round "4.2"]
[White "Supi, Luis Paulo"]
[Black "Quintiliano Pinto, Renato R."]
[Result "1/2-1/2"]
[ECO "B92"]
[WhiteElo "2581"]
[BlackElo "2468"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,132,13,16,21,2,18,0,9,10,15,10,98,129,208,212,195,193,145,13,10,22,28,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,45,40,40,40,320,312,310,333,326,323,295,102,416,183,422,419,474,391,387,0,473,0,388,375,354,326,257,8,24,8,8,16,20,0,0,0,30,0,0,0,0,28,45,43,200,195,180,181,318,332,320,344,339,339,344,344,347,319,350,363,321,310,363,360,361,363,361,361,441,363,441,441,441]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. Be3 Be6 9. Nd5 Nbd7 10. Qd3 O-O 11. O-O Bxd5 12. exd5 Rc8 13. c4 Ne8 {B92: Sicilian Najdorf: 6 Be2.} 14. a4 $1 {[%mdl 4] now scores much better than the old 14.Qd2.} f5 15. a5 Bg5 {The position is equal.} 16. f4 exf4 17. Bxf4 {[#]} Bf6 $146 (17... Bxf4 $11 18. Rxf4 g6) ({Predecessor:} 17... Bxf4 18. Rxf4 Qg5 19. Qd2 g6 20. Nd4 Ng7 21. Rd1 Qe7 {½-½ (35) Siikaluoma,A (2537)-Fajs,B (2535) GER email 2015}) 18. Qxf5 $16 Bd4+ 19. Nxd4 $18 Rxf5 20. Nxf5 Ne5 21. Bxe5 ({White should try} 21. Bg3 $16) 21... dxe5 $11 22. d6 {And now Ne7+ would win.} g6 $1 (22... Nxd6 $2 23. Rad1 Qc7 24. Rxd6 $18) 23. Ne7+ Kg7 24. Nxc8 Qxc8 25. b4 {To avoid Qc5+} Nxd6 26. c5 Ne4 27. Ra3 Qd7 {White must now prevent ...Qd4+.} 28. Rd1 $36 {[%mdl 2048] To avoid Qd4+. White has the initiative.} Qf7 29. Bf3 {Active counter play!} Nf6 30. Re3 Qc4 (30... e4 $11 {was preferrable.} 31. Bxe4 Qc4 32. Bxb7 Qxb4) 31. Rxe5 $14 {Strongly threatening Re7+.} Qxb4 32. h3 Kh6 $2 {[%mdl 8192]} ({Better is} 32... Qxa5 $14 33. Bxb7 Qc3) 33. g4 $1 $18 {[%cal Bg2g4,Bg4g5][%mdl 32] g5+ is the strong threat.} Kg7 34. g5 Ng8 {To avoid Re7+. Hoping for ...Qf4.} 35. Rd7+ Kh8 {aiming for ...Qc3.} 36. Rd8 $2 (36. Bxb7 Qc3 37. Re8 Qxc5+ 38. Kh2 Qf2+ 39. Kh1 Qf1+ 40. Kh2 Qf4+ 41. Kg2 Qxg5+ 42. Kh1 Qc1+ 43. Kh2 Qf4+ 44. Kh1 Qc1+ 45. Kh2 Qf4+ 46. Kh1 Qc1+ $11) (36. Kg2 $18 {is the precise move to win.}) 36... Qxa5 $2 {[%mdl 8192]} (36... h5 $16) 37. Ree8 $1 {[%csl Gd8][%cal Re8g8]} Qxc5+ {[#]} 38. Kf1 $1 {[%csl Gd8][%cal Re8g8]} (38. Kh1 Qc1+ 39. Bd1 (39. Rd1 Qc3 $11) 39... Qc4 $18) 38... Qc1+ 39. Kf2 {[%csl Gd8][%cal Re8g8]} Qc5+ 40. Kf1 {[%csl Gd8][%cal Re8g8]} Qc1+ $1 41. Kf2 {[%csl Gd8][%cal Re8g8]} Qc5+ 42. Ke2 {[%csl Gd8][%cal Re8g8]} Qb5+ 43. Ke1 {[%csl Gd8][%cal Re8g8]} Qa5+ {[#]} 44. Kf1 $2 (44. Kd1 $1 $18 {[%csl Gd8][%cal Re8g8]} Qa1+ 45. Ke2 Qb2+ 46. Ke3 Qc1+ 47. Ke4) 44... Qb5+ $11 45. Be2 {[%csl Gd8][%cal Re8g8][%mdl 1024] White has compensation.} Qf5+ 46. Ke1 {[%csl Gd8][%cal Re8g8] Really sharp!} Qa5+ 47. Kd1 {[%csl Gd8][%cal Re8g8]} Qa4+ 48. Kd2 {[%csl Gd8][%cal Re8g8]} Qb4+ 49. Kc2 {[%csl Gd8][%cal Re8g8]} (49. Ke3 $5 {[%cal Re8g8]} Qc5+ 50. Kf3 Qf5+ 51. Kg2 Qxg5+ 52. Bg4 $16) 49... Qc5+ 50. Kb3 {[%csl Gd8][%cal Re8g8]} Qb6+ 51. Kc3 {[%csl Gd8][%cal Re8g8]} Qa5+ $1 52. Kd4 {[%csl Gd8][%cal Re8g8]} Qb6+ $1 {Black is now going downhill.} 53. Ke4 {[%csl Gd8][%cal Re8g8]} Qc6+ 54. Kf4 {[%csl Gd8][%cal Re8g8]} Qc7+ (54... Qc1+ $142 55. Ke4 Qb1+ 56. Ke5 (56. Bd3 Qe1+ 57. Kd4 Qa1+ 58. Kd5 Qa5+ 59. Kd4 Qa1+ 60. Kc4 Qa4+ 61. Kd5 Qa5+ 62. Ke4 Qe1+ 63. Kd4 Qa1+ $16) 56... Qb2+ 57. Kf4 Qc1+ 58. Ke4 Qb1+ 59. Ke3 (59. Bd3 Qh1+ 60. Ke5 Qh2+ 61. Kd4 Qb2+ 62. Kc5 Qf2+ 63. Kc4 Qf7+ 64. Kb4 Qa2 $18) 59... Qc1+ 60. Kd3 Qb1+ 61. Kd4 Qb6+ 62. Ke4 Qc6+ 63. Kd3 Qb5+ 64. Kd4 Qb6+) 55. Kg4 $18 {[%csl Gd8][%cal Re8g8]} h5+ 56. gxh6 $1 Qf7 {[%cal Oh8h7]} 57. Rxg8+ Qxg8 58. Rxg8+ Kxg8 {[%mdl 4096] Endgame KB-K3P} 59. Kg5 a5 60. Bb5 Kh8 61. h4 ({Not} 61. Kxg6 Kg8 62. Bd7 Kh8 $18) 61... Kg8 62. Ba4 Kh8 63. Be8 ({Much less strong is} 63. Kxg6 Kg8 64. Kh5 Kh8 $18) 63... Kg8 64. Kxg6 Kh8 65. h7 b5 66. Bxb5 a4 67. Bxa4 {Weighted Error Value: White=0.36/Black=0.33} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.22"]
[Round "4.3"]
[White "Cubas, Jose Fernando"]
[Black "Pereira, Silvio Cunha"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2469"]
[BlackElo "2217"]
[Annotator "TA"]
[PlyCount "135"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,135,35,13,35,22,32,25,23,21,39,11,0,9,42,20,40,30,34,-19,50,56,64,54,84,81,85,75,80,62,104,71,75,69,75,67,67,27,17,0,0,0,0,-14,11,0,0,0,0,0,137,139,135,146,162,165,169,152,152,8,8,8,8,0,0,0,0,0,0,-26,-26,-26,0,-21,-21,-20,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,0,9,9,9,9,9,9,9,0,9,0,9,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O d6 5. c3 Bb6 6. d3 Nf6 {6...h6 might become the main line.} 7. a4 a6 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 8. Nbd2 O-O 9. h3 Ne7 {White has an edge.} 10. Re1 Ng6 11. Nf1 c6 12. Bb3 Nh5 {[#]} 13. Bg5 $146 ({Predecessor:} 13. d4 Nhf4 14. Ng3 Qf6 15. Nh5 Qe7 16. Nxf4 Nxf4 17. Bxf4 exf4 18. e5 d5 19. Qd2 {0-1 (42) Delchev,A (2628)-Olivier,J (2344) France 2006}) 13... Qe8 14. a5 Ba7 15. Ne3 (15. Be3 $14) 15... Bxe3 (15... h6 $1 $11 16. Nh4 Ngf4 17. Bxf4 Nxf4) 16. fxe3 $14 Be6 17. g4 Nf6 18. Bxf6 gxf6 19. Rf1 d5 20. Nd2 Kg7 (20... Qe7 $14 {deserves consideration.}) 21. Qf3 {[%cal Re4d5]} Qd8 22. exd5 cxd5 23. d4 Rh8 {[%cal Oh7h5]} 24. Rf2 {White is more active.} e4 25. Qg3 $36 {[%mdl 2048] Strongly threatening c4. White is more active.} h5 $1 26. Bd1 (26. gxh5 Rxh5 27. Rg2 Rxh3 $19) 26... hxg4 27. Bxg4 Bxg4 28. Qxg4 Rh4 29. Qf5 Qd6 {[#] And now ...Qg3+ would win.} 30. Raf1 $1 {[%cal Rf5f6]} Rah8 (30... Rf8 $11 {remains equal.}) 31. Qxf6+ $16 Qxf6 32. Rxf6 Rxh3 33. Rxf7+ Kg8 {aiming for ...Rh1+.} 34. Rxb7 {Black must now prevent Rf6.} Rxe3 {[#]} 35. Rf6 (35. Rb8+ $1 $16 Kg7 36. Rxh8 Kxh8 37. Kf2) 35... Rg3+ $11 36. Kf2 Rhh3 {Threatens to win with ...e3+.} 37. Nf1 {Chess con chili.} (37. Rxa6 {leads to mate.} e3+ 38. Ke1 exd2+ 39. Kf2 d1=N+ 40. Kf1 Rh1+ 41. Ke2 Rh2+ 42. Kf1 Rf2+ 43. Ke1 Rg1#) 37... Rf3+ 38. Rxf3 Rxf3+ {[%mdl 4096] Endgame KRN-KRN} 39. Ke1 Nf4 {Hoping for ...Nd3+.} 40. Nd2 Nd3+ {[%mdl 1024] Black has compensation.} 41. Ke2 Nf4+ (41... Rg3 $5 {[%cal Rd3f4]}) 42. Ke1 $1 {The position is equal.} Rg3 43. Nf1 Rg2 44. b4 Rb2 45. Ne3 Re2+ 46. Kd1 Rxe3 {KRN-KR} 47. b5 $1 axb5 (47... Rd3+ 48. Kc2 e3 49. bxa6 $18) 48. a6 {a7 would kill now.} Rxc3 {...e3 is the strong threat.} 49. a7 Ra3 50. Rb8+ Kf7 51. a8=Q Rxa8 52. Rxa8 {KR-KN} Ne6 53. Ra7+ Kf6 54. Rd7 Nxd4 55. Rxd5 Nf5 56. Rxb5 Kg5 57. Ke2 Kf4 {( -> ...Nd4+)} 58. Rb4 {To avoid Nd4+} Ng3+ 59. Kf2 Nf5 60. Ra4 Nh6 61. Ke2 Nf5 62. Rb4 Nd6 63. Rb8 Nf5 64. Rf8 Ke5 65. Kd2 Kf4 66. Ke2 Ke5 67. Kd2 Kf4 68. Ke2 {Weighted Error Value: White=0.13 (very precise) /Black=0.12 (very precise)} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.22"]
[Round "4.4"]
[White "Rodi, Luis Ernesto"]
[Black "Alboredo, Julia"]
[Result "1-0"]
[ECO "B57"]
[WhiteElo "2347"]
[BlackElo "2216"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,99,31,55,26,32,22,18,15,17,11,16,-8,21,0,0,0,0,0,0,0,16,0,0,0,0,0,19,29,14,19,9,13,13,0,0,0,0,0,10,0,0,-10,4,0,0,-19,14,-10,18,14,45,67,79,69,84,56,98,36,107,108,83,77,366,360,352,320,304,295,297,296,269,290,323,316,493,487,1238,1232,1188,1181,5895,5808,5691,245,5306,5618]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Bd7 7. O-O $1 {7.0-0 is better than 7.Bb3.} g6 8. Nxc6 bxc6 9. Qe2 {B57: Classical Sicilian: Sozin with 6...Qb6.} (9. f4 {looks sharper.} Bg7 10. e5 Bg4 11. Qd2 Qb6+ 12. Kh1) 9... Bg7 10. e5 dxe5 11. Qxe5 {The position is equal.} O-O 12. Qe2 {[#]} Bf5 $146 ({Predecessor:} 12... Bg4 13. f3 Bf5 14. Be3 Qa5 15. Rad1 Rad8 16. Qf2 Nd5 17. Bxd5 cxd5 18. Bxa7 Rd7 {0-1 (28) Maximov,I (2116)-Abramov,V (2321) St Petersburg 2008}) 13. Bg5 Re8 (13... h6 $5 {[%cal Rh6g5]} 14. Bf4 Nd5 $11) 14. Rad1 Qb6 {Strongly threatening ...Bg4.} (14... Qb8 15. Bb3 $14) 15. Rb1 Rad8 16. Bb3 Qa5 {[%cal Of5c2]} 17. Bd2 Qc7 18. f3 Nd5 {[%cal Bf6d5,Bd5f4,Bf4e6,Be6d4][%mdl 32]} 19. Ne4 Nf4 20. Qe1 Ne6 21. Ba5 Bd4+ 22. Kh1 Bb6 23. Bc3 Bd4 24. Ng3 {[#] Hoping for Ba5.} Bxc3 25. Qxc3 Nd4 26. Rbd1 Qf4 27. Nxf5 Nxf5 28. Rfe1 {Inhibits Ne3.} Qg5 29. Qe5 h5 {[%cal Bh7h5,Bh5h4,Bh4h3][%mdl 32] Prevents g4.} 30. c3 h4 31. Kg1 {[%cal Bh1g1,Bg1f2,Bf2g3][%mdl 32]} h3 {[%csl Gh3][%cal Rg5g2] [#]} 32. g4 Nh4 33. Kf2 {Chess con chili.} (33. Bxf7+ $2 Kxf7 34. Qxg5 Nxf3+ 35. Kf2 Nxg5 $19) 33... Qxe5 34. Rxe5 {aiming for Rxd8.} Rxd1 35. Bxd1 $14 {[%mdl 4096] Endgame KRB-KRN} Rd8 (35... f6 $1 $14 36. Bb3+ Kf8) 36. Bb3 (36. Ba4 $16) 36... Rd3 (36... Kf8 $1 $14) 37. Re3 $16 Rd2+ 38. Kg3 Ng2 {[%mdl 8192] Black cannot hold the game after this.} (38... g5 $16 39. Rxe7 Rg2+ 40. Kxh3 Rxb2) 39. Rxe7 $18 Rxb2 40. g5 (40. Rxa7 g5 41. Ra5 (41. Bxf7+ Kf8 $11) (41. Kxh3 $2 Nf4+ 42. Kg3 Rg2#) 41... Kf8 42. Rxg5 Ne3 $18) (40. Bxf7+ Kf8 41. Rd7 (41. Rxa7 g5 $11) 41... g5 $11) (40. Kxh3 g5 41. Rxf7 (41. Bxf7+ $2 Kf8 $19) 41... Kh8 $14) 40... a5 41. Rb7 ({Don't do} 41. Bxf7+ Kf8 42. Rc7 Ne3 43. Bxg6 Rg2+ 44. Kxh3 Rxg5 $18) (41. Kxh3 Nf4+ 42. Kh4 Nd5 $16) 41... Kh8 {[%cal Oa5a4]} 42. Rxf7 ({Inferior is} 42. Kxh3 a4 43. Rxf7 (43. Rb8+ Kg7 $17) 43... axb3 44. axb3 c5 $15) 42... Ne3 43. Kxh3 Nf1 44. Kg4 Ne3+ (44... Rxh2 {was necessary.} 45. Rf8+ Kg7 46. Rg8+ Kh7) 45. Kf4 Nf5 (45... a4 $142 46. Kxe3 axb3 47. axb3 Rxb3) 46. Ke5 a4 47. Be6 Ng7 48. Rf8+ Kh7 49. Bg8+ Kh8 50. Kf6 {Weighted Error Value: White=0.07 (flawless) /Black=0.31} 1-0

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.22"]
[Round "4.5"]
[White "Di Berardino, Diego Rafael"]
[Black "El Debs, Felipe de Cresce"]
[Result "0-1"]
[ECO "D36"]
[WhiteElo "2483"]
[BlackElo "2553"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,92,34,15,16,13,14,0,0,0,9,0,0,0,0,0,2,12,8,0,0,-9,0,-19,-20,-19,-21,-26,-34,-46,-21,-136,-133,-139,-154,-167,-160,-165,-156,-197,-188,-397,-217,-215,-227,-239,-244,-245,-237,-237,-232,-235,-239,-231,-199,-200,-195,-249,-263,-323,-214,-359,-219,-293,-262,-630,-503,-377,-259]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. e3 h6 7. Bh4 Be7 8. Bd3 O-O 9. Qc2 Nbd7 10. Nf3 Re8 11. O-O Ne4 12. Bxe4 Bxh4 13. Bh7+ Kh8 14. Bd3 Be7 {14...Be7 is better than 14...Bf6. D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2).} 15. Rfe1 Kg8 16. Bh7+ Kh8 {The position is equal.} 17. Bd3 Kg8 18. Rab1 {[#]} Nf6 $146 ({Predecessor:} 18... a5 19. a3 Bd6 20. e4 dxe4 21. Nxe4 Bf8 22. Ng3 Rxe1+ 23. Rxe1 Nf6 24. Bc4 Nd5 25. Ne5 Be6 26. h3 Qc7 {1-0 (53) Martirosyan,H (2621)-Sarana,A (2666) Warsaw 2021}) 19. Ne5 Be6 20. b4 Nd7 21. Nxd7 Qxd7 22. Na4 b6 {Inhibits Nc5.} 23. Rec1 Rec8 24. Qe2 Bd6 25. Nc3 Qe7 26. a3 a5 {[%cal Ra5b4]} 27. Na4 Rcb8 {[%cal Ra5b4]} 28. bxa5 {Black continues to play with concentration.} (28. Qd1 $11 {keeps the balance.}) 28... Rxa5 $17 29. Nb2 Qc7 {Black is more active.} 30. a4 Bxh2+ 31. Kf1 Bd6 32. Bb5 (32. Kg1 $17) 32... Bd7 {...Qd8 is the strong threat.} 33. e4 $2 {[#]} (33. Kg1) 33... Ba3 (33... Qd8 $142 34. e5 cxb5 35. exd6 bxa4) 34. e5 Qb7 35. e6 cxb5 36. exd7 Qxd7 37. axb5 Rxb5 38. Nd1 Rxb1 39. Rxb1 Be7 40. Qe5 Re8 {[%cal Oe7b4] [#] Strongly threatening ...Bb4!} 41. Qe2 (41. Ne3 $142) 41... Bf6 $19 {[%csl LRd4,LRe2]} 42. Qd3 Qa4 ({Avoid the trap} 42... Re4 $2 43. Rxb6 Qa7 44. Qa6 $19) 43. Ne3 (43. Qb5 {was called for.} Qa8 44. Qxb6) 43... Qxd4 44. Qb5 Rd8 45. Ke2 $2 (45. Rd1 Qh4 46. Rxd5) 45... Qe4 46. Qd3 Bd4 {Weighted Error Value: White=0.37/Black=0.24 (precise)} 0-1

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.23"]
[Round "5.1"]
[White "El Debs, Felipe de Cresce"]
[Black "Stamenkovic, Dragan"]
[Result "1/2-1/2"]
[ECO "E07"]
[WhiteElo "2553"]
[BlackElo "2378"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,64,11,20,22,16,27,23,32,0,37,39,28,0,0,-27,-9,-105,5,7,11,15,12,0,0,0,0,0,0,0,12,6,87,22,18,0,54,0,8,-15,-10,-54,-61,-74,-61,-74,-72,-69,-64]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. g3 Nbd7 6. Bg2 Be7 7. O-O O-O 8. Qd3 b6 {[%cal Bb7b6,Bb6b5][%mdl 32]} 9. e4 Bb7 10. Rd1 dxc4 {E07: Closed Catalan: Main Line (5 Nf3 0-0 6 0-0 Nbd7).} 11. Qxc4 b5 12. Qb3 {[#]} a6 $146 {White has an edge.} ({Predecessor:} 12... b4 13. e5 Nd5 14. Ne4 c5 15. Bg5 Bxg5 16. Nexg5 h6 17. Ne4 cxd4 18. Nd6 Rb8 19. Nxb7 Rxb7 20. Nxd4 {1-0 (47) Gleizerov,E (2553)-Cvetanovic,U (2249) Paracin 2013}) 13. Be3 Qb8 14. e5 Nd5 15. Bg5 c5 $1 16. dxc5 Nxc5 (16... Bxc5 {is interesting.} 17. Qc2 h6 18. Nxd5 Bxd5 19. Bf4 Qa7) 17. Nxd5 Bxd5 (17... Nxb3 $17 18. Nxe7+ Kh8 19. axb3 Qe8) 18. Qe3 $11 Qb7 19. Bxe7 Qxe7 20. Nd4 {[#] Threatens to win with Bxd5.} Bxg2 21. Kxg2 {Nc6 is the strong threat.} Qb7+ 22. Qf3 Qxf3+ 23. Kxf3 Rac8 24. Rac1 Rfd8 (24... Nd7 $11 {remains equal.}) 25. b4 (25. b3 $16) 25... Na4 $1 26. Nb3 {[%cal Oc1c6]} Nb6 (26... Nb2 $11 27. Rxc8 Rxc8) 27. Rxc8 (27. Rxd8+ $1 $14 Rxd8 28. Rc6) 27... Rxc8 $14 {KRN-KRN} 28. Nc5 Nd5 29. a3 (29. Nxa6 $11 {deserves consideration.} h6 30. Rd2) 29... a5 $1 $15 30. Ne4 axb4 31. axb4 Nxb4 32. Nd6 Rb8 {Weighted Error Value: White=0.24 (precise) /Black=0.22 (precise)} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.23"]
[Round "5.2"]
[White "Alboredo, Julia"]
[Black "Di Berardino, Diego Rafael"]
[Result "1/2-1/2"]
[ECO "B83"]
[WhiteElo "2216"]
[BlackElo "2483"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,91,15,6,39,31,44,0,12,0,0,8,19,17,17,11,-3,-12,0,0,0,-22,0,-16,-17,-43,-39,-58,-54,-56,9,0,0,4,53,0,11,0,18,20,28,2,31,-39,-42,-39,-39,-35,-14,-47,-78,-124,-44,-66,-9,-7,-11,-52,0,-26,-16,-31,0,0,0,0,0,0,0,0,0,0,-2,-7,8,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. a3 Be7 7. Be2 O-O 8. O-O d6 9. Be3 Bd7 10. f4 Nxd4 {B83: Sicilian Scheveningen: 6 Be2, lines without ...a6.} 11. Bxd4 Bc6 {[%cal Oe6e5]} 12. Bd3 a6 13. Kh1 b5 14. Qf3 {[#]} Qb8 $146 ({Predecessor:} 14... Qc7 15. Qg3 Rad8 16. Rae1 Qb7 17. Qh3 g6 18. f5 gxf5 19. Qh6 e5 20. Rxf5 Ng4 21. Qh3 Nf6 22. Nd5 Ne8 23. Rh5 Ng7 24. Rxh7 f5 25. Qh6 Bg5 26. Rh8+ Kf7 27. Rxf8+ Rxf8 28. Qxg5 exd4 29. Qf6+ Kg8 30. Ne7+ {1-0 (30) Landa,K-Brodsky,M Jurmala 1989}) 15. Qh3 {aiming for e5.} e5 16. fxe5 dxe5 17. Be3 Bd7 18. Qg3 Be6 {Prevents Nd5.} 19. Be2 Rc8 20. Bh6 {[%csl Gh6][%cal Rg3g7]} Ne8 21. Bg4 Bxg4 22. Qxg4 Qd6 23. Nd5 {[%cal Oa1d1]} Bd8 {[#]} (23... Rxc2 $15 24. Qd1 Rc6) 24. Qf3 $1 $11 Qe6 25. Bd2 Rc4 ({Don't play} 25... Rxc2 26. Bc3 $14) (25... a5 $11) 26. Bc3 (26. b3 $14 Rc6 27. Qd3) 26... f6 27. Rad1 Rac8 28. Ne3 R4c6 29. Rd3 (29. Rd5 $5 {[%cal Rd5e5]}) 29... Be7 {[%cal Oe7a3]} 30. Rfd1 {[#]} (30. Bb4 $14) 30... Bxa3 $1 $15 31. Bxe5 $1 Qxe5 32. bxa3 Rd6 (32... Re6 {feels hotter.} 33. Rd4 Rc3 34. R4d3 Nd6 35. h4 a5) 33. Nf5 Rxd3 34. Qxd3 (34. cxd3 $142 Rc3 35. Qf2) 34... Qe6 ({Better is} 34... Rc3 $17 35. Qd5+ Kf8) 35. h3 g6 (35... Rc4 $15) 36. Ne3 $11 Rc7 37. Nd5 (37. Qd4 $11) 37... Rf7 ({Black should play} 37... Rc4 $15) 38. Nf4 Qe5 39. Nd5 {[%cal Bf4d5,Bd5b4,Bb4c6,Bc6d8][%mdl 32]} Kg7 40. Nb4 {The position is equal.} Nc7 41. c4 h5 42. Nc6 Qc5 {[%csl LRc4,LRc6]} 43. cxb5 Nxb5 44. Nd8 {Black must now prevent Ne6+.} Re7 {Prevents Ne6+.} 45. a4 Nc7 46. Qd6 {Weighted Error Value: White=0.13 (very precise) /Black=0.18 (very precise)} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.23"]
[Round "5.3"]
[White "Pereira, Silvio Cunha"]
[Black "Rodi, Luis Ernesto"]
[Result "0-1"]
[ECO "B15"]
[WhiteElo "2217"]
[BlackElo "2347"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,94,0,0,7,0,2,-9,-13,-6,-16,-59,-37,-71,-46,-71,-36,-58,-37,-44,-39,-32,-12,-17,-5,-45,0,0,0,0,0,0,0,0,0,0,9,17,6,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,32,26,22,-43,-43,-40,-35,-54,-56,-58,-41,-378,-369,-350,-119,-128,0,0,0,0,0,0,0,0,0,-1020,-882]} 1. e4 c6 2. Nc3 d5 3. d4 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Bd3 O-O 8. O-O Bg4 9. h3 Bh5 {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6.} 10. g4 {10.Bf5 gains popularity.} Bg6 11. Nh4 Bc7 {[#] The position is equal.} 12. Ng2 $146 ({Predecessor:} 12. Nxg6 hxg6 13. c3 Qd6 14. f4 Re8 15. Qf3 c5 16. Bb5 Nc6 17. d5 c4 18. Kg2 {0-1 (53) Rajkovic,M (2371)-Markovic,M (2394) Subotica 2019}) 12... Re8 13. Bxg6 (13. c3 $11 {feels stronger.}) 13... hxg6 $15 14. Qd3 {To avoid Re4} Nd7 15. Bf4 Nf8 16. Rad1 Ne6 17. Bxc7 Qxc7 18. c3 Re7 19. Rfe1 Rae8 20. Re3 Ng5 (20... g5 $15) 21. Rxe7 $11 Rxe7 22. h4 Ne6 23. Qf3 Qa5 24. a3 Qb5 25. Rd2 g5 26. h5 Nf4 27. Ne3 Qb3 28. Kh2 Nd5 29. Nxd5 cxd5 {[%mdl 4096] Endgame KQR-KQR} 30. Qd3 Qb6 31. Re2 Re6 32. Kg2 Kf8 33. Rc2 Kg8 34. c4 Qa6 35. Rc3 Qd6 36. c5 (36. Qf5 $11) 36... Qf4 $15 37. Qf3 {Qxf4 is the strong threat.} Qxd4 38. Rb3 Re4 (38... Qxc5 39. Rxb7 Kf8 40. b4 $11) 39. Rb4 Qe5 {And now ...Rxb4 would win.} 40. Rxb7 {[%mdl 8192]} ({White has to play} 40. Rxe4 $1 $15 dxe4 41. Qf5) 40... Rf4 $19 41. Qg3 {[#]} Qe2 $2 (41... f5 $1 $19 {and Black stays clearly on top.} 42. c6 Qe4+ 43. f3 (43. Kh2 $2 Qe2 $19) 43... Qc2+ 44. Qf2 Qxc6) 42. c6 $17 {[#] Black must now prevent c7.} Rxg4 (42... Qe4+ $1 $17 43. f3 (43. Kh2 Qc2 $17) 43... Qc2+ 44. Qf2 Qxc6 45. Rb8+ Kh7) 43. c7 $11 Qe4+ 44. Kh2 Rh4+ 45. Qxh4 $1 Qxh4+ 46. Kg1 Qg4+ 47. Kf1 $2 {[%mdl 8192]} (47. Kh1 $11 Qxh5+ 48. Kg2 Qg4+ 49. Kh1 Qh4+ 50. Kg2 Qe4+ 51. Kh2 Qf4+ 52. Kg2 Qe4+ 53. Kh2 Qh4+ 54. Kg2 Qg4+ 55. Kh1 Qh5+ 56. Kg2 Qg4+) 47... Qc4+ {Weighted Error Value: White=0.32/Black=0.20 (precise)} 0-1

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.23"]
[Round "5.4"]
[White "Quintiliano Pinto, Renato R."]
[Black "Cubas, Jose Fernando"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "2468"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,87,24,20,18,12,-8,-8,-18,20,0,8,0,15,16,39,18,20,14,21,0,0,0,27,0,0,-41,0,0,0,-7,0,0,0,-5,0,0,0,0,0,0,0,0,0,0,38,4,8,2,27,0,0,0,0,0,28,28,24,0,0,0,0,0,209,200,649,638,627,385,316,0,679,0,0,0,151,0,0,0]} 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 {[%cal Be7e6,Be6e5][%mdl 32]} 5. Nf3 a6 6. c5 Nbd7 7. Bd3 {D45: Semi-Slav: 5 e3.} e5 8. Bc2 e4 9. Nd2 {[#]} g6 $146 ({Predecessor:} 9... b6 10. cxb6 Nxb6 11. O-O Bd6 12. f4 g5 13. Nb3 gxf4 14. exf4 Rg8 15. Kh1 Qe7 {0-1 (32) Khruschiov,A (2498)-Vysochin,S (2526) St Petersburg 2009}) 10. O-O Bg7 11. f3 exf3 12. Nxf3 O-O 13. e4 dxe4 $1 14. Bxe4 Qc7 15. Bg5 (15. Ng5 $5 {[%cal Re4c2]}) 15... b6 $1 16. cxb6 Qxb6 17. Na4 Qc7 18. Bd3 (18. Bc2 $11) 18... a5 (18... Ng4 $15) 19. Qd2 $11 Ba6 20. Bf4 Qa7 21. Bxa6 Qxa6 22. Rfe1 Nd5 23. Bh6 Qc4 24. Bxg7 Kxg7 25. b3 Qb4 26. Qc2 Rac8 27. Rac1 N7b6 28. Nxb6 Qxb6 29. Qc5 Qa6 30. Qc4 (30. Ne5 $5 {[%cal Re5c6]}) 30... Qb6 31. Ne5 {[%cal Bf3e5,Be5c4,Bc4d6,Bd6c8][%mdl 32] Threatens to win with Nd7.} Rfe8 32. Qc5 Qa6 33. Rf1 f6 34. Nc4 {Nd6 is the strong threat.} (34. Nxc6 $5 {[%cal Rc5d5]} Ne3 35. Qa7+ Qxa7 36. Nxa7 $11) 34... Re2 35. a4 Qb7 36. Nd6 Qxb3 (36... Qd7 $1 $11 {and Black is okay.} 37. Nxc8 Rxg2+ 38. Kh1 (38. Kxg2 Qg4+ 39. Kh1 Qe4+ 40. Kg1 Qg4+ 41. Kf2 Qf4+ 42. Ke1 Qe3+ 43. Kd1 Qd3+ 44. Ke1 Qe3+ 45. Kd1 Qd3+ 46. Ke1 Qe3+ $11) 38... Qxc8) 37. Nxc8 $18 {Dancing on a razor blade.} Ne3 $2 (37... Qb2 38. Kh1 (38. Qa7+ $2 Kh6 $19) 38... Rxg2) 38. Qe7+ Kh6 39. Qf8+ Kh5 40. Qxf6 $2 (40. Rf3 {gets mated.} Rxg2+ 41. Kh1 {[#]} Rxh2+ $3 {[%mdl 512]} 42. Kg1 Qb2 $1 43. Qc5+ f5) (40. Qc5+ $18 g5 41. Qxc6 (41. Rxf6 Rxg2+ 42. Kh1 Rc2 $11) 41... Nxf1 42. Rxf1) 40... Rxg2+ $11 41. Kh1 Rxh2+ $1 42. Kg1 {White threatens Qe5+ and mate.} Rg2+ $1 43. Kh1 Rh2+ $1 44. Kg1 {Weighted Error Value: White=0.23 (precise) /Black=0.27 (precise)} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.23"]
[Round "5.5"]
[White "Languidey, Simon Alejandro"]
[Black "Supi, Luis Paulo"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2403"]
[BlackElo "2581"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,72,3,3,3,3,3,3,3,5,6,0,0,0,0,0,0,0,0,0,0,0,0,0,-5,-7,0,0,0,-11,0,0,0,0,0,0,0,-45,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 {[%cal Be2e4,Be4e5][%mdl 32]} c5 2. c3 Nf6 3. e5 Nd5 4. g3 Nc6 5. Bg2 e6 6. Nf3 d6 7. exd6 Bxd6 8. O-O O-O 9. d4 cxd4 10. Nxd4 Nxd4 11. Qxd4 Qc7 {B22: Sicilian: 2 c3.} 12. c4 $1 {[%mdl 4] outshines the older 12.Nd2.} Nf6 13. Nc3 {[#] aiming for Nb5.} Bd7 14. b3 Bc6 15. Bxc6 Qxc6 {[#]} 16. Bg5 $146 ({Predecessor:} 16. Bb2 Rfd8 17. Rad1 Qf3 18. Rd3 Qh5 19. Rfd1 Ng4 20. h4 Ne5 21. g4 Qxh4 22. Nb5 {0-1 (32) Tadic,S (2349)-Stefansson,V (2371) Arandjelovac 2021}) 16... Be7 17. Rad1 {[%cal Oc3e4]} h6 18. Bxf6 Bxf6 19. Qe3 Rfd8 20. Rxd8+ Rxd8 21. Rd1 {Prevents Bd4.} Rxd1+ 22. Nxd1 Qd7 23. Nc3 a6 24. Kg2 Bd4 25. Qf3 g5 26. Ne2 Bc5 27. g4 Qd2 28. a4 (28. Nc3 $11) 28... a5 (28... Qd1 $1 $15) 29. Nc3 {The position is equal.} Qd4 30. Ne4 Be7 31. h3 Kg7 32. Ng3 Bc5 33. Nh5+ Kf8 34. Nf6 Kg7 35. Nh5+ Kf8 36. Nf6 Kg7 {An even fight not without its subleties.  Weighted Error Value: White=0.02 (flawless) /Black=0.03 (flawless)} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.24"]
[Round "6.1"]
[White "Stamenkovic, Dragan"]
[Black "Supi, Luis Paulo"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2378"]
[BlackElo "2581"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,66,14,14,13,9,10,8,5,10,9,-2,0,-24,-20,-21,-8,-12,-12,-16,-12,-32,-23,-28,-3,-13,-6,-1,5,-39,-17,-48,-35,-48,-57,-62,-43,-173,-181,-181,-177,-183,15,-117,-70,-85,-82,-86,-72,-86,-21,-59,-33,-177,-164,-376,-202,-29985,-29986]} 1. d4 Nf6 2. Bg5 g6 3. Bxf6 exf6 4. e3 d5 5. c4 dxc4 6. Bxc4 Bd6 {D00: 1 d4 d5: Unusual lines.} 7. Nc3 Nd7 $5 {[%mdl 4] An interesting side line.} 8. Nf3 O-O {The position is equal.} 9. O-O f5 10. Rc1 c6 {[#]} 11. a4 $146 ({Predecessor:} 11. a3 Nf6 12. Ba2 Qe7 13. Qc2 Bd7 14. Na4 Ne4 15. Nc5 Nxc5 16. dxc5 Bc7 17. Rfd1 {½-½ (30) Lenic,L (2639)-Tomashevsky,E (2758) Berlin 2015}) 11... Nf6 12. Re1 Qe7 13. Qb3 Rb8 14. g3 Kg7 15. Qc2 Bd7 16. d5 Bb4 17. dxc6 Bxc6 18. Nd4 Rfc8 {[%cal Oc6a4]} 19. Qb3 (19. Red1 $11 {feels stronger.}) 19... h5 {[%cal Oh5h4]} 20. Nxc6 bxc6 21. Red1 h4 {White must now prevent ...Rh8.} 22. Qc2 (22. gxh4 $2 Ng4 23. Be2 Qxh4 24. Bxg4 Qxg4+ 25. Kf1 Qh3+ 26. Ke2 Ba5 $19) 22... Rh8 {...hxg3 is the strong threat.} 23. Bf1 (23. Be2 $1 $15) 23... hxg3 $19 24. hxg3 Ng4 {[%cal Og4e3] Strongly threatening ...Nxe3!} 25. Bg2 {[#]} Bd6 $2 (25... Nxe3 $1 $19 {[%mdl 512]} 26. fxe3 Qxe3+ 27. Qf2 Bc5 28. Qxe3 Bxe3+ 29. Kf1 Rxb2 30. Bxc6 Rhh2) 26. Qe2 {[#]} (26. Ne2 $11 {remains equal.}) 26... Rh2 {Black is much more active.} ({Better is} 26... Bxg3 $1 $17 {[%mdl 512]} 27. fxg3 Rxb2) 27. Rd4 $15 Rbh8 {[%cal Oe7g5] Threatens to win with ...Qg5!} 28. Rxg4 fxg4 29. Qxg4 Be5 ({Reject} 29... Qf6 $6 30. Rd1 Bb8 31. Qf3 $11) (29... R2h5 $1 $17 30. Rc2 Rd8 31. Qd4+ Kf8) 30. Bxc6 f5 31. Qc4 ({White has to play} 31. Qf3 $15) 31... Bxg3 $1 $19 32. Bg2 $2 {[#]} (32. Rc2 {was called for.}) 32... Be5 {The board is on fire.} (32... R8h4 $142 $1 33. Qc6 {[#]} Rg4 $1) 33. Nd5 $2 (33. Qd5 $19) 33... Qg5 {Weighted Error Value: White=0.68/Black=0.25 (precise)} 0-1

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.24"]
[Round "6.2"]
[White "Cubas, Jose Fernando"]
[Black "Languidey, Simon Alejandro"]
[Result "0-1"]
[ECO "C47"]
[WhiteElo "2469"]
[BlackElo "2403"]
[Annotator "RC"]
[PlyCount "54"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:14]} e5 {[%emt 0:00:37]} 2. Nf3 {[%emt 0:02:42]} Nc6 {[%emt 0:00:17]} 3. d4 {[%emt 0:00:11]} exd4 {[%emt 0:01:11]} 4. Nxd4 {[%emt 0:00:04]} Nf6 {[%emt 0:01:08]} 5. Nc3 {[%emt 0:01:24]} Bb4 {[%emt 0:00:57]} 6. Nxc6 {[%emt 0:00:07]} bxc6 {[%emt 0:00:57]} 7. Bd3 {[%emt 0:00:05]} d5 {[%emt 0:05:40]} 8. exd5 {[%emt 0:00:07]} O-O {[%emt 0:02:17]} 9. O-O {[%emt 0:00:06]} Bg4 {[%emt 0:02:52]} 10. Ne2 {[%emt 0:12:42]} cxd5 {[%emt 0:01:09]} 11. c3 {[%emt 0:02:36]} Bd6 {[%emt 0:04:10]} 12. Qc2 {[%emt 0:05:51]} h6 {[%emt 0:06:32]} 13. Ng3 {[%emt 0:02:33]} Re8 {[%emt 0:08:58]} 14. Bd2 {[%emt 0:17:38]} c5 {[%emt 0:05:17]} 15. c4 {[%emt 0:07:09]} d4 {[%emt 0:01:27]} 16. Nf5 {[%emt 0:08:47]} Bxf5 {[%emt 0:03:47]} 17. Bxf5 {[%emt 0:01:21]} Qc7 {[%emt 0:00:11]} 18. g3 {[%emt 0:01:26]} Qc6 {[%emt 0:03:16]} 19. Rfe1 {[%emt 0:04:01]} Bc7 {[%emt 0:05:07]} 20. Rxe8+ {[%emt 0:10:52]} Rxe8 {[%emt 0:00:45]} 21. Re1 {[%emt 0:00:22]} Rxe1+ {[%emt 0:03:22]} 22. Bxe1 {[%emt 0:00:09]} Qe8 {[%emt 0:00:29]} 23. Bd2 {[%emt 0:00:23]} Qc6 {[%emt 0:41:34]} 24. b4 {[%emt 0:06:00]} cxb4 {[%emt 0:00:00]} 25. Bxb4 {[%emt 0:00:04]} Nd7 {[%emt 0:00:00]} 26. Qe2 {[%emt 0:04:22]} Ne5 {[%emt 0:00:00]} 27. Qe4 {[%emt 0:05:10]} g6 {[%emt 0:00:00]} 0-1

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.24"]
[Round "6.3"]
[White "Rodi, Luis Ernesto"]
[Black "Quintiliano Pinto, Renato R."]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2347"]
[BlackElo "2468"]
[Annotator "RC"]
[PlyCount "64"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:03]} c5 {[%emt 0:01:39]} 2. Nc3 {[%emt 0:00:15]} d6 {[%emt 0:00:18]} 3. d4 {[%emt 0:00:08]} cxd4 {[%emt 0:00:08]} 4. Qxd4 {[%emt 0:00:06]} Nc6 {[%emt 0:00:06]} 5. Qd2 {[%emt 0:00:06]} g6 {[%emt 0:00:52]} 6. b3 {[%emt 0:00:07]} Bh6 {[%emt 0:00:11]} 7. f4 {[%emt 0:00:06]} Nf6 {[%emt 0:00:33]} 8. Bb2 {[%emt 0:00:08]} O-O {[%emt 0:01:50]} 9. O-O-O {[%emt 0:00:09]} e5 {[%emt 0:00:39]} 10. g3 {[%emt 0:00:35]} Re8 {[%emt 0:02:30]} 11. Kb1 {[%emt 0:00:18]} Nd4 {[%emt 0:06:17]} 12. Nge2 {[%emt 0:00:18]} Bg4 {[%emt 0:02:45]} 13. Bg2 {[%emt 0:00:08]} Nxe2 {[%emt 0:23:21]} 14. Nxe2 {[%emt 0:01:06]} Nh5 {[%emt 0:05:43]} 15. Rdf1 {[%emt 0:12:51]} Bxe2 {[%emt 0:14:44]} 16. Qxe2 {[%emt 0:00:23]} exf4 {[%emt 0:00:08]} 17. Bf3 {[%emt 0:04:37]} Ng7 {[%emt 0:01:04]} 18. Qd2 {[%emt 0:12:31]} Ne6 {[%emt 0:10:29]} 19. h4 {[%emt 0:01:07]} Bg7 {[%emt 0:01:17]} 20. Bxg7 {[%emt 0:01:15]} Kxg7 {[%emt 0:01:02]} 21. gxf4 {[%emt 0:01:20]} Qf6 {[%emt 0:01:24]} 22. f5 {[%emt 0:01:29]} Nd4 {[%emt 0:05:32]} 23. fxg6 {[%emt 0:03:52]} Nb5 {[%emt 0:08:39]} 24. Qe3 {[%emt 0:01:27]} hxg6 {[%emt 0:05:37]} 25. Bd1 {[%emt 0:18:59]} Qe5 {[%emt 0:01:39]} 26. Rf3 {[%emt 0:21:46]} Rac8 {[%emt 0:00:30]} 27. Rhf1 {[%emt 0:00:19]} Re7 {[%emt 0:00:58]} 28. Qf2 {[%emt 0:08:14]} Nc3+ {[%emt 0:02:05]} 29. Kc1 {[%emt 0:00:15]} Nxe4 {[%emt 0:00:16]} 30. Rxf7+ {[%emt 0:00:07]} Rxf7 {[%emt 0:00:08]} 31. Qxf7+ {[%emt 0:00:10]} Kh8 {[%emt 0:00:03]} 32. c4 {[%emt 0:01:36]} Qa1+ {[%emt 0:04:03]} 0-1

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.24"]
[Round "6.4"]
[White "Di Berardino, Diego Rafael"]
[Black "Pereira, Silvio Cunha"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2483"]
[BlackElo "2217"]
[Annotator "ChessBase"]
[PlyCount "134"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:01:35]} e5 {[%emt 0:00:07]} 2. Nf3 {[%emt 0:00:08]} Nc6 {[%emt 0:00:06]} 3. Bc4 {[%emt 0:00:12]} Bc5 {[%emt 0:00:07]} 4. c3 {[%emt 0:00:23]} Nf6 {[%emt 0:00:44]} 5. d4 {[%emt 0:00:51]} exd4 {[%emt 0:00:12]} 6. e5 {[%emt 0:00:10]} d5 {[%emt 0:00:24]} 7. Be2 {[%emt 0:01:07]} Ne4 {[%emt 0:00:56]} 8. cxd4 {[%emt 0:00:04]} Bb4+ {[%emt 0:01:16]} 9. Bd2 {[%emt 0:01:23]} Bxd2+ {[%emt 0:03:43]} 10. Nbxd2 {[%emt 0:00:05]} O-O {[%emt 0:00:24]} 11. O-O {[%emt 0:02:28]} f6 {[%emt 0:01:25]} 12. Bb5 {[%emt 0:05:26]} Ne7 {[%emt 0:07:07]} 13. exf6 {[%emt 0:06:42]} gxf6 {[%emt 0:00:46]} 14. Re1 {[%emt 0:01:31]} Nd6 {[%emt 0:00:51]} 15. Bd3 {[%emt 0:01:31]} Bf5 {[%emt 0:04:06]} 16. Bxf5 {[%emt 0:29:14]} Nexf5 {[%emt 0:02:23]} 17. Qb3 {[%emt 0:10:32]} c6 {[%emt 0:00:23]} 18. Ne4 {[%emt 0:01:22]} Qb6 {[%emt 0:15:11]} 19. Nc5 {[%emt 0:02:09]} Qxb3 {[%emt 0:02:06]} 20. Nxb3 {[%emt 0:00:38]} Kf7 {[%emt 0:01:19]} 21. Nc5 {[%emt 0:02:01]} Rfe8 {[%emt 0:01:17]} 22. Kf1 {[%emt 0:00:15]} b6 {[%emt 0:03:01]} 23. Na6 {[%emt 0:05:23]} Re4 {[%emt 0:02:37]} 24. Rac1 {[%emt 0:01:44]} Rc8 {[%emt 0:00:57]} 25. a4 {[%emt 0:01:50]} Rxe1+ {[%emt 0:10:30]} 26. Kxe1 {[%emt 0:01:26]} h5 {[%emt 0:03:15]} 27. Ke2 {[%emt 0:03:16]} Ke6 {[%emt 0:01:08]} 28. Kd3 {[%emt 0:00:24]} Ne4 {[%emt 0:02:45]} 29. Ke2 {[%emt 0:03:41]} Kd6 {[%emt 0:01:22]} 30. Nb4 {[%emt 0:02:06]} a5 {[%emt 0:02:57]} 31. Nd3 {[%emt 0:05:18]} Ng5 {[%emt 0:10:23]} 32. Nde1 {[%emt 0:00:58]} Re8+ {[%emt 0:01:17]} 33. Kd3 {[%emt 0:03:35]} Ne4 {[%emt 0:00:50]} 34. Rc2 {[%emt 0:00:28]} c5 {[%emt 0:01:11]} 35. Re2 {[%emt 0:01:17]} cxd4 {[%emt 0:02:01]} 36. Nxd4 {[%emt 0:02:51]} Nc5+ {[%emt 0:00:47]} 37. Kd2 {[%emt 0:00:05]} Rxe2+ {[%emt 0:00:20]} 38. Nxe2 {[%emt 0:00:03]} Ne4+ {[%emt 0:00:52]} 39. Kc2 {[%emt 0:01:08]} Nxf2 {[%emt 0:00:18]} 40. Nf4 {[%emt 0:00:00]} h4 {[%emt 0:00:00]} 41. Nf3 {[%emt 0:00:46]} Ng4 {[%emt 0:05:45]} 42. Kc3 {[%emt 0:03:54]} Ne5 {[%emt 0:03:02]} 43. Nd4 {[%emt 0:00:22]} Nxd4 {[%emt 0:01:44]} 44. Kxd4 {[%emt 0:00:03]} Nc6+ {[%emt 0:00:20]} 45. Kc3 {[%emt 0:02:54]} Ne7 {[%emt 0:01:06]} 46. Kd4 {[%emt 0:00:39]} Nf5+ {[%emt 0:02:42]} 47. Kd3 {[%emt 0:00:21]} Ne7 {[%emt 0:03:32]} 48. Kd4 {[%emt 0:00:20]} Nc6+ {[%emt 0:00:46]} 49. Kc3 {[%emt 0:01:20]} d4+ {[%emt 0:07:28]} 50. Kc4 {[%emt 0:15:15]} Ke5 {[%emt 0:08:54]} 51. Ng6+ {[%emt 0:02:20]} Ke4 {[%emt 0:00:05]} 52. Nxh4 {[%emt 0:00:02]} Ne5+ {[%emt 0:00:11]} 53. Kb3 {[%emt 0:00:03]} Kf4 {[%emt 0:00:15]} 54. Kc2 {[%emt 0:02:03]} Kg4 {[%emt 0:01:43]} 55. g3 {[%emt 0:00:05]} Kh3 {[%emt 0:00:41]} 56. b3 {[%emt 0:03:47]} Kxh2 {[%emt 0:00:40]} 57. Nf5 {[%emt 0:00:02]} Kh3 {[%emt 0:03:43]} 58. Nxd4 {[%emt 0:03:51]} Kxg3 {[%emt 0:00:07]} 59. Kc3 {[%emt 0:00:05]} Kg4 {[%emt 0:08:35]} 60. b4 {[%emt 0:02:07]} f5 {[%emt 0:01:16]} 61. bxa5 {[%emt 0:00:18]} bxa5 {[%emt 0:00:07]} 62. Ne6 {[%emt 0:01:48]} f4 {[%emt 0:01:31]} 63. Nxf4 {[%emt 0:00:54]} Kxf4 {[%emt 0:00:06]} 64. Kd4 {[%emt 0:00:02]} Nd7 {[%emt 0:01:28]} 65. Kc4 {[%emt 0:00:25]} Nb6+ {[%emt 0:00:24]} 66. Kb5 {[%emt 0:00:06]} Nxa4 {[%emt 0:00:06]} 67. Kxa5 {[%emt 0:00:05]} Ke5 {[%emt 0:06:19]} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.24"]
[Round "6.5"]
[White "El Debs, Felipe de Cresce"]
[Black "Alboredo, Julia"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2553"]
[BlackElo "2216"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,133,0,0,3,0,12,0,0,0,0,-14,-6,-5,-7,-14,51,9,22,28,59,0,0,0,0,0,16,0,0,0,0,0,0,0,0,0,0,0,90,90,90,89,89,89,121,132,135,78,119,90,83,81,90,71,100,88,100,81,100,104,114,114,151,122,184,169,200,200,229,229,229,222,221,218,368,368,376,156,156,156,161,224,247,179,681,589,1736,1699,1459,1184,1559,1241,952,795,29961,29953,29955,29957,29961,29962,29966,29967,29966,29968,29969,29970,29969,29969,29971,29972,29972,29973,29972,29973,29975,29975,29976,12370]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. cxd5 exd5 6. Qc2 g6 7. Bg5 Bg7 8. e3 Bf5 9. Bd3 Bxd3 10. Qxd3 O-O {D35: Queen's Gambit Declined: Exchange Variation.} 11. O-O Qd6 12. Rab1 a5 {The position is equal.} 13. Rfc1 Nbd7 {[#]} 14. a3 $146 ({Predecessor:} 14. Bf4 Qe7 15. h3 Ne4 16. Na4 f5 17. Nd2 g5 18. Bg3 h5 19. Nxe4 fxe4 20. Qb3 {½-½ (42) Johari,C (1839)-Raghunandan,K (2236) Kalutara 2015}) 14... Rfe8 15. Qc2 Ne4 16. Nxe4 Rxe4 (16... dxe4 $11 17. Nd2 Qe6) 17. Bf4 (17. b4 $1 $14) 17... Qf8 $1 $11 18. b4 {bxa5 is the strong threat.} axb4 19. Rxb4 (19. axb4 $14 Bf6 20. Bg3) 19... Qc8 $1 20. Qb3 b6 21. h3 h6 22. Ne5 Nxe5 23. Bxe5 Bxe5 24. dxe5 Rxb4 25. Qxb4 {[%mdl 4096] Endgame KQR-KQR} Qc7 26. Qd6 Qxd6 27. exd6 {KR-KR} Rc8 (27... c5 $11) 28. d7 Rd8 29. Rxc6 {Strongly threatening Rc8.} Rxd7 30. Rxb6 d4 31. exd4 Rxd4 32. Rb1 ({White should try} 32. Ra6) 32... Kf8 ({Better is} 32... Ra4) 33. Kf1 Ra4 34. Rb3 Ke7 35. Rd3 Rc4 36. Ke2 Rc1 37. Rd1 Rc2+ 38. Rd2 Rc1 39. Ra2 {Prevents Ra1.} Kd7 40. Kd3 Rg1 (40... Rc5 $16 {might work better.} 41. a4 Ra5) 41. f3 $18 Kc6 42. a4 {[%cal Ba3a4,Ba4a5][%mdl 32]} Kb6 43. a5+ Ka6 44. Ke4 Re1+ 45. Kf4 Rc1 (45... Re6 {was worth a try.} 46. Ra3 Re2) 46. Rd2 Rc4+ 47. Ke3 (47. Ke5 $18 {is the precise move to win.}) 47... Kxa5 $16 48. Rd7 $1 Rc2 49. g4 Rh2 50. Rxf7 Rxh3 $2 (50... g5 51. Rh7 Rxh3) 51. Kf2 $18 {Black must now prevent Kg2.} g5 52. Kg2 {Prevents Rh2+.} Rh4 53. Rb7 {And now Rb1 would win.} Ka6 54. Rb8 {Threatens to win with Rb1.} h5 55. Kg3 $1 {Rh8 would kill now.} hxg4 56. fxg4 {White mates.} Rh1 57. Rg8 Kb6 58. Rxg5 Kc6 59. Re5 Kd6 60. Re2 Rg1+ 61. Kh4 Rh1+ {[#]} 62. Kg5 $1 Rh8 63. Kf6 Rf8+ {[#]} 64. Kg7 $1 Ra8 65. g5 {[%cal Bg4g5,Bg5g6][%mdl 32]} Ra1 66. g6 Rf1 67. Kg8 {Weighted Error Value: White=0.12 (very precise) /Black=0.44} (67. Rh2 $142 Rb1 68. Kh7 Ke5 69. g7 Rb7 70. Kh8 Rb8+ 71. g8=Q Rxg8+ 72. Kxg8) 1-0

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.25"]
[Round "7.1"]
[White "Alboredo, Julia"]
[Black "Stamenkovic, Dragan"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2216"]
[BlackElo "2378"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,102,18,25,0,2,0,22,22,19,19,19,19,20,20,19,14,28,15,23,0,0,0,0,0,0,0,0,0,0,0,-11,-16,-5,-12,-5,-5,0,-14,-7,-56,-61,-50,-68,-66,-70,-69,-38,-48,-50,-58,-33,-33,-22,-316,-33,-372,-358,-350,-332,-268,0,0,0,0,0,-12833,-12833,-12833,-12834,-12834,-12835,-12835,-12835,-12835,-12835,-12838,-12839,-12839,-12839,-12840,-12840,-12841,-12841,-12841,-12842,-12842,-12843,-12843,-12843,-12844,-12843,-12845,-12845,-12845,-12846]} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nge2 Bf5 6. Ng3 {B01: Scandinavian Defence.} Bg6 {[#]} 7. h4 $146 ({Predecessor:} 7. Bd3 e6 8. O-O Be7 9. Re1 c6 10. Be3 Nbd7 11. Qd2 Nb6 12. a4 a5 13. Bf4 {½-½ (47) Coman,L (1726)-Holmstrom,J (1917) Bucharest 2019}) 7... h5 8. Bd3 {Threatens to win with Bxg6. The position is equal.} Bxd3 9. Qxd3 Nc6 10. Be3 O-O-O {[%cal Rc6d4]} 11. O-O-O $1 e6 {Prevents d5.} 12. Nge4 Nxe4 13. Qxe4 Nb4 14. a3 Nd5 15. Nxd5 Qxd5 16. Qxd5 exd5 17. Bg5 Re8 18. Rde1 Bd6 19. g3 Kd7 20. Kd1 Re6 21. Rxe6 Kxe6 $11 {[%mdl 4096] Endgame KRB-KRB} 22. Re1+ Kd7 23. Ke2 Re8+ 24. Kf1 (24. Be3 $1 $11) 24... Rxe1+ $15 25. Kxe1 {KB-KB} Ke6 26. Ke2 Kf5 27. Kf3 $1 f6 28. Be3 g5 {[%cal Bg7g5,Bg5g4][%mdl 32]} 29. Bd2 b6 30. a4 Bf8 {Strongly threatening ...g4+.} 31. Bc1 $2 {[%mdl 8192]} (31. b4 $11 {and White has nothing to worry.}) 31... a6 $2 (31... g4+ $1 $19 32. Ke2 Ke4) 32. Bd2 $2 {[%mdl 8192]} ({White must play} 32. hxg5 $1 $15 fxg5 33. Kg2) 32... g4+ $19 33. Ke2 {[#]} Ke4 34. Bf4 {[#]} Bd6 (34... c6 $1 $19 {And now ...b5 would win.} 35. Bc7 Kxd4) 35. Bxd6 $11 cxd6 {KP-KP} 36. c3 b5 (36... f5 $5) 37. axb5 {[%mdl 8192] White is on the road to losing.} (37. a5 $11) 37... axb5 $19 {Black is clearly winning.} 38. Kd2 Kf3 39. Ke1 f5 40. Kf1 f4 41. gxf4 Kxf4 42. Ke2 Ke4 43. Kd2 Kf3 44. Ke1 g3 45. fxg3 Kxg3 46. Ke2 Kxh4 47. Kf3 Kg5 48. Kg3 h4+ {[%cal Bh5h4,Bh4h3][%mdl 32]} 49. Kh3 Kh5 50. Kg2 Kg4 51. Kh2 h3 {Weighted Error Value: White=0.50/Black=0.23 (precise)} 0-1

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.25"]
[Round "7.2"]
[White "Pereira, Silvio Cunha"]
[Black "El Debs, Felipe de Cresce"]
[Result "1/2-1/2"]
[ECO "B70"]
[WhiteElo "2217"]
[BlackElo "2553"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,78,0,18,0,-20,-29,-19,-12,-20,-25,-32,-110,-83,-104,-96,-97,-103,-341,-338,-470,-464,-457,-457,-440,-452,-409,-406,-389,0,-249,2134,-29999,1892,-216,2191,-354,750,-149,29989,444,1487,0,1347,46,2188,73,1079,900,4682,560,481,-99,4794,-89,915,-44,1044,-52,2806,-197,4702,-665,4710,-422,101]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3 g6 7. Bg2 Nxd4 8. Qxd4 Bg7 9. Qb4 {[#] B70: Sicilian Dragon: 6 g3 and 6 Be2 (without a later Be3).} a5 $146 ({Predecessor:} 9... O-O 10. a4 Qc7 11. a5 Be6 12. e5 Nd7 13. exd6 exd6 14. O-O Rab8 15. Rd1 Ne5 16. Rxd6 Rfc8 {1-0 (72) Popovic,P (2520)-Makarov,M (2515) Cetinje 1993}) 10. Qb5+ Nd7 11. Nd5 {The position is equal.} e6 12. Ne3 O-O 13. h4 (13. Qe2 $15) 13... b6 14. Qc6 {[%csl LRa8,LRd6]} Ba6 15. Qxd6 Qc8 {And now ...Rd8 would win.} 16. h5 $2 (16. Bf1 $17) 16... Rd8 $19 {...Ne5 is the strong threat.} (16... Be5 17. Qa3 $11) 17. f4 {To avoid Ne5} (17. hxg6 Ne5 18. gxf7+ (18. gxh7+ $2 Kh8 $19) (18. Qxb6 Nf3+ 19. Bxf3 Bc3+) 18... Kxf7 19. Qxd8 (19. Qxb6 Nf3+ 20. Bxf3 Bc3+) 19... Qxd8) 17... Bf8 18. Qd1 {[#]} Ne5 {[%mdl 512]} 19. Bd2 {[#]} Bb4 $1 20. Bxb4 Rxd1+ 21. Rxd1 gxh5 $2 22. fxe5 $2 (22. Be7 $11 Qe8 23. Bd6) 22... Qc5 $4 {[%mdl 8192]} 23. Rxh5 $4 {[%mdl 8192]} Bb5 $4 {[%mdl 8192]} 24. Kf2 $4 {[%mdl 8192]} f5 $4 {[%mdl 8192]} 25. Kf3 $4 {[%mdl 8192]} Qxe5 $4 {[%mdl 8192]} (25... Qxb4 26. exf5 Bc6+ 27. Kf2 Bxg2 28. Kxg2 Qe4+ 29. Kf2 Qxe5 30. Rd7 $15) (25... axb4 $2 26. Rg5+ Kh8 27. exf5 Qxe5 28. Bf1 $19 (28. Kf2 $2 Re8 $19)) (25... fxe4+ $19 26. Kxe4 Qxb4+ 27. Rd4 Qe1) 26. exf5 $2 Rd8 $2 {[%mdl 8192]} 27. Kf2 Rf8 (27... Rxd1 $142 28. Rg5+ Kf7) 28. Bf3 $2 Be8 $2 {[%mdl 8192]} (28... axb4 $11 29. Rh6 exf5) 29. Rh4 $2 Qxb2 $2 {[%mdl 8192]} (29... axb4 $14 30. Re4 (30. Rxb4 exf5 31. Rd5 Qe7 $11) 30... Qxb2) 30. Rdd4 $2 exf5 $2 {[%mdl 8192]} (30... axb4 $16 31. Rhg4+ Kh8) 31. Bd5+ Bf7 32. Bxf7+ (32. Bxf8 $142 Kxf8 33. Bxf7 Kxf7 34. Rd7+ Ke6 35. Rd6+ $3 {[%mdl 512]} Ke7 36. Rxh7+ Kxd6 37. Nc4+ Ke6 38. Nxb2) 32... Rxf7 $18 33. Rd3 $2 Kg7 $2 {[%mdl 8192]} (33... axb4 $17 34. Rd8+ Rf8 35. Rxf8+ Kxf8) 34. a4 $2 Kg6 $2 {[%mdl 8192]} (34... axb4 $17 35. Kf3 Qf6) 35. Rc4 $2 Kg5 $2 {[%mdl 8192]} (35... axb4 $15 36. Rd6+ Rf6) 36. Rcd4 $2 Qxc2+ {[%mdl 8192]} 37. Kf3 $4 {[%mdl 8192]} (37. Nxc2 $18 axb4 38. Rxb4) 37... Qxa4 $4 {[%mdl 8192] [#]} (37... Qc6+ $19 38. Kf2 axb4 39. Rxb4 Re7) 38. Kg2 $4 {[%mdl 8192]} Qc2+ $4 {[%mdl 8192]} 39. Kh3 $4 {[%mdl 8192]} (39. Nxc2 $18 {was the only winning move.} axb4 40. Rxb4) 39... Qb1 $2 {Both players deserved the win here.  Weighted Error Value: White=2.34/Black=0.71} ({Better is} 39... Qc6 $19 {[%cal Rc6h1]} 40. Nf1 axb4) 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.25"]
[Round "7.3"]
[White "Quintiliano Pinto, Renato R."]
[Black "Di Berardino, Diego Rafael"]
[Result "1/2-1/2"]
[ECO "D24"]
[WhiteElo "2468"]
[BlackElo "2483"]
[Annotator "TA"]
[PlyCount "136"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,136,10,54,3,7,6,0,14,0,0,0,0,0,0,0,0,0,0,9,8,23,12,36,8,17,14,14,0,0,0,32,0,46,41,61,44,43,52,56,60,43,4,18,24,17,12,23,0,0,0,0,-29,-26,-33,0,0,0,0,0,-40,-44,-137,-130,-125,-117,-125,-120,-134,-121,-152,-152,-159,-159,-159,-156,-160,-100,-106,-100,-100,-100,-101,-101,-205,-184,-177,-177,-498,-214,-214,-216,-227,-399,-641,-757,-643,-924,-725,-913,-679,-272,-1002,-41,-41,-32,-32,-32,-32,-32,-32,0,-32,-32,-32,-32,-32,-32,-32,0,-32,-32,-40,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e4 b5 (5... Bb4 $11) 6. Nxb5 {D24: Queen's Gambit Accepted: 3 Nf3 Nf6 4 Nc3.} (6. e5 $14 Nd5 7. Nxb5) 6... Nxe4 $11 7. Qa4 {Prevents Bb4+.} c6 8. Nc3 Nxc3 9. bxc3 Ba6 10. Bxc4 Bxc4 11. Qxc4 Bd6 12. O-O O-O {[#]} 13. g3 $146 ({Predecessor:} 13. Rb1 Qc7 14. Qd3 Nd7 15. c4 c5 16. d5 exd5 17. Qxd5 Nb6 18. Qd3 Rad8 19. Qc2 {½-½ (100) Carlsen,M (2847)-Nepomniachtchi,I (2789) chess24.com INT 2021}) 13... Qa5 14. Be3 Qd5 15. Qe2 Nd7 16. Rfd1 (16. c4 $5 {[%cal Rc4d5]} Qh5 17. Kg2 $11) 16... Rfe8 17. Nd2 Qf5 18. Rab1 Nb6 19. c4 Bc7 20. Rdc1 Rac8 (20... e5 $11 21. d5 cxd5 22. cxd5 Qd7) 21. Qf3 $14 Qg6 22. Qxc6 Bxg3 $1 23. Qg2 Bh4 24. Qxg6 (24. a4 {with more complications.} Rc6 25. a5 Nc8 26. c5 Ne7 27. Rb7) 24... hxg6 25. Nf3 {[#] c5 is the strong threat.} Bf6 26. c5 Nd5 27. Rb7 a6 28. c6 Re7 29. Bd2 Kf8 30. Rc5 Rec7 31. Rxc7 Rxc7 32. Ba5 $1 {[%cal Oc5d5] aiming for Rxd5!} Rc8 33. c7 Ne7 34. Bb4 Ke8 35. Ra5 (35. Rc4 $15) 35... Nc6 $17 ({Weaker is} 35... Rxc7 36. Bxe7 Rxe7 37. Rxa6 $11) 36. Ra4 Rxc7 37. Bc5 a5 38. Nd2 Be7 39. Nb3 Bxc5 40. dxc5 {[%mdl 4096] Endgame KRN-KRN} g5 41. Ra3 Ra7 42. Nd2 Rd7 (42... f6 $142 43. Rb3 Nb4) 43. Nc4 Rd5 44. Nxa5 Rxc5 45. Nxc6 Rxc6 {KR-KR} 46. Ra7 (46. Rg3 $17) 46... Rc3 47. Kg2 g4 {To avoid h3} 48. a4 $2 (48. Kf1) 48... Ra3 $19 49. a5 g5 50. Kg1 {[#]} Kf8 $1 {Threatens to win with ...Kg7.} 51. Kg2 $2 (51. a6 Ra2 52. Ra8+ Ke7 53. Kg2) 51... Kg7 52. Kg1 Kg6 53. Kg2 f6 54. Ra8 Kf5 55. a6 Ke5 $2 (55... Kf4 $19 {Strongly threatening ...e5.} 56. a7 Ke5) 56. a7 $15 f5 57. Kg1 $1 Ra2 58. Kf1 $1 Ra1+ 59. Kg2 $1 Ra3 {White must now prevent ...Ra1.} 60. Kg1 $1 Ra4 61. Kf1 $1 Ra2 62. Kg1 $1 Ra6 63. Kf1 $1 Ra1+ 64. Kg2 $1 Ra5 {Hoping for ...Ra1.} 65. Kf1 f4 66. Kg2 $1 {The position is equal.} Ra3 67. Rg8 Rxa7 68. Rxg5+ Kf6 {Whites escaped into a draw.  Weighted Error Value: White=0.19 (very precise) /Black=0.21 (precise)} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.25"]
[Round "7.4"]
[White "Languidey, Simon Alejandro"]
[Black "Rodi, Luis Ernesto"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2403"]
[BlackElo "2347"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,75,7,-1,8,12,-4,-26,-14,-67,-65,-56,-27,-29,-19,-79,-75,-141,-142,-151,-138,-148,-78,-98,-79,-100,-17,-10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-78,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 {[%cal Bc7c6,Bc6d5,Bd5c4][%mdl 32]} 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 {[%cal Bb8c6,Bc6e5,Be5g6][%mdl 32]} 6. Bg5 dxc4 7. d5 Ne5 8. Qd4 {[%csl LRc4,LRe5] [#]} h6 $1 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} 9. Bf4 Ng6 10. Bg3 e5 {Black has an edge.} 11. Qxc4 (11. Bxe5 $11 Nxe5 12. Qxe5+ Be7 13. O-O-O (13. Bxc4 O-O $11)) 11... Bd6 $15 12. Bd3 O-O {[#]} (12... Nf4 {is interesting.} 13. Bxf4 exf4 14. Nf3 O-O 15. O-O Bg4) 13. Bxg6 $146 ({Predecessor:} 13. Nge2 Ne7 14. O-O Bf5 15. Rfd1 a6 16. a4 Rc8 17. Qb3 Bxd3 18. Rxd3 Rc7 19. f3 {1-0 (40) Vuckovic,A (2327)-Schwerteck,M (2090) Reutlingen 2011}) 13... fxg6 {[%cal Bf7g6,Bg6g5,Bg5g4][%mdl 32]} 14. Nge2 (14. Nf3 $11 {remains equal.}) 14... Bf5 $17 15. Rd1 ({White should try} 15. O-O) 15... a6 16. Qb3 b5 17. a3 {To avoid b4} Nh5 (17... Rb8 $142 18. O-O b4 19. axb4 Rxb4) 18. O-O g5 19. f3 Rb8 ({Better is} 19... Qf6 $1 $17 {And now ...Qg6 would win.} 20. h3 Qg6) 20. Ne4 $11 g4 21. Nxd6 Qxd6 22. Qe3 Nxg3 23. Nxg3 gxf3 24. Rxf3 Bg6 25. Rxf8+ Rxf8 26. h3 Rf4 27. Rd2 Rd4 28. Rxd4 exd4 29. Qxd4 Qxg3 30. d6 {[%cal Bd5d6,Bd6d7][%mdl 32] Hoping for d7.} Qe1+ (30... Qg5 $5 31. d7 Qd8 $11) 31. Kh2 Qe8 {...Bf5 is the strong threat.} (31... Bf5 $5 32. d7 Bxd7 $1 33. Qxd7 Qe5+ 34. Kg1 Qe1+ 35. Kh2 Qe5+ 36. Kg1 Qxb2 $11) 32. d7 Qd8 33. Qd6 {[#]} (33. Qd5+ $1 $11 {keeps the balance.} Kh8 34. g4) 33... Kf7 (33... Bh7 $1 $17) 34. Qd5+ {The position is equal.} Ke7 35. Qe5+ Kf8 36. Qd6+ Kf7 {White must now prevent ...Bf5.} 37. Qd5+ Ke7 38. Qe5+ {Weighted Error Value: White=0.14 (very precise) /Black=0.11 (very precise)} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.25"]
[Round "7.5"]
[White "Supi, Luis Paulo"]
[Black "Cubas, Jose Fernando"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2581"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,67,15,14,25,28,31,9,16,17,21,28,27,37,27,7,34,31,27,8,27,0,57,19,0,-11,-28,-33,31,26,29,28,70,46,46,47,43,37,36,31,28,21,108,106,356,315,329,310,297,322,318,316,297,281]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. h3 Nf6 {[%cal Bg8f6,Bf6d7,Bd7f8,Bf8e6,Be6d4][%mdl 32]} 7. Nc3 Nd7 8. Be3 e5 9. Qd2 h6 {9...h6 scores better than 9...Qe7. B31: Sicilian: 2...Nc6 3 Bb5 g6.} 10. O-O b6 11. Nh2 Nf8 {The position is equal.} 12. f4 exf4 13. Bxf4 Ne6 {[%cal Oc5c4]} 14. Be3 Nd4 15. Nd1 Qe7 16. c3 Ne6 17. Nf2 g5 {[#]} 18. Qd1 $146 ({Predecessor:} 18. Nf3 f6 19. a4 O-O 20. a5 Rb8 21. axb6 axb6 22. Nh1 Qd6 23. g4 Rd8 24. Rad1 {1-0 (110) Bernal Varela,N (2493)-Wosch,A (2429) FICGS email 2020}) 18... h5 (18... Ba6 $11) 19. a4 (19. Qa4 $5 {[%cal Ra4c6]} Bb7 20. Nf3 $11) 19... a5 20. d4 Ba6 21. Re1 Rd8 (21... O-O-O $15 22. Nf3 Kb7) 22. Nf3 $14 cxd4 23. cxd4 Qb4 {Inhibits Qb3.} (23... g4 $11 {was preferrable.} 24. hxg4 hxg4 25. Nxg4 Bxd4 26. Bxd4 Nxd4 27. Nxd4 c5) 24. Qc2 Qc4 25. Qd2 g4 (25... Nxd4 $2 26. Bxd4 Bxd4 27. Nxd4 Qxd4 28. Qxg5 $18) 26. hxg4 hxg4 ({Not} 26... Nxd4 27. Bxd4 Bxd4 28. Nxd4 Qxd4 29. Qg5 $16) (26... Bxd4 27. Nxd4 Nxd4 28. Bxd4 Qxd4 29. Qg5 $16) 27. Nxg4 {[#] aiming for Nge5.} Nxd4 ({Much less strong is} 27... Bxd4 28. Rac1 Bxe3+ 29. Qxe3 Qxa4 30. b3 $16 (30. Qxb6 Bb5 $16)) 28. Nxd4 Rxd4 (28... Bxd4 $11 29. Rad1 c5) 29. Qf2 $16 {And now Nf6+ would win.} Rxe4 $2 {This move loses the game for Black.} (29... Rd7 $16 {was worth a try.}) 30. Nf6+ Bxf6 {White has a decisive advantage.} 31. Qxf6 O-O 32. Qg5+ Kh7 {[#]} 33. Kf2 $1 {White threatens Rh1+ and mate.} ({Less strong is} 33. Bxb6 Qd5 34. Qxd5 (34. Qg3 Rfe8 $14) 34... cxd5 $16) 33... Qc2+ 34. Kg3 {Weighted Error Value: White=0.08 (flawless) /Black=0.32} 1-0

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.26"]
[Round "8.1"]
[White "Stamenkovic, Dragan"]
[Black "Cubas, Jose Fernando"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2378"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,77,14,25,4,14,6,24,8,13,7,7,3,3,4,15,18,20,11,43,0,0,0,0,0,0,-15,-18,-123,-124,-122,-126,-112,-47,-37,-33,-32,-25,-45,-35,-40,-13,-20,-8,-8,26,14,25,26,212,208,235,237,230,215,245,240,284,279,284,281,283,250,367,342,335,308,645,637,622,567]} 1. d4 Nf6 2. Bg5 e6 3. e4 h6 4. Bxf6 Qxf6 5. c3 Nc6 6. Bc4 {[#] A45: Trompowsky Attack.} Qg6 $146 {[%csl LRe4,LRg2]} ({Predecessor:} 6... d6 7. Ne2 g5 8. O-O Bd7 9. f4 gxf4 10. Nxf4 Qe7 11. d5 Ne5 12. dxe6 Bxe6 13. Bd5 {0-1 (26) Samorukova,J (1695)-Beltz,C (1824) Stuttgart 2007}) 7. Qf3 b6 8. Ne2 {White has an edge.} Bb7 9. Nd2 O-O-O 10. O-O-O Be7 11. Bd3 h5 12. h4 Qh6 13. Kb1 (13. Qxf7 $2 Rdf8 14. Qxf8+ Rxf8 $19) 13... f5 14. Qe3 (14. exf5 {[#]} Nxd4 $1 15. Qg3 Nxf5 16. Bxf5 exf5 $17) (14. Qg3 $1 $14) 14... Qxe3 $11 15. fxe3 g6 16. Nf4 Rdg8 17. Nf3 Nb4 18. exf5 (18. cxb4 $11 fxe4 19. Ne5 exd3 20. Nexg6) 18... Nxd3 $17 19. Rxd3 Be4 (19... exf5 20. d5 $15) 20. fxe6 g5 (20... dxe6 $17 {Threatens to win with ...g5.} 21. Kc1 Bxd3 22. Nxd3 g5 23. hxg5 Bxg5) 21. exd7+ $15 ({Much worse is} 21. hxg5 dxe6 22. Kc1 Bxd3 23. Nxd3 Bxg5 $17) 21... Kxd7 22. hxg5 Bxg5 23. Nxg5 ({Much weaker is} 23. Ne5+ Kc8 24. Rxh5 Rxh5 25. Nxh5 Bxe3 $17) 23... Rxg5 24. Kc2 Rf8 {[%cal Of8f4] [#] Hoping for ...Rxf4!} 25. Rh3 h4 {[%cal Of8f4]} 26. Kd2 Bxg2 27. Rxh4 Be4 28. c4 {Black must now prevent Rc3.} Rg3 $2 {A mistake that costs the game.} (28... Bxd3 $11 29. Kxd3 Rf7) 29. Rc3 $18 Rg1 30. Rc1 ({Resist} 30. Ne2 $6 Rf2 31. Rxe4 Rgg2 $16) 30... Rg5 31. Re1 Rfg8 32. Re2 c6 33. Nh5 R8g6 {Prevents Nf6+.} 34. Rxe4 Rxh5 35. Rf2 {And now Rf7+ would win.} Kd6 (35... Rg7 $142 36. Ref4 Re7) 36. Ref4 Ke6 37. Rf7 Rh1 $2 (37... Rg2 38. Rxg2 Kxf7) 38. Rxa7 Rgg1 39. Raf7 {Weighted Error Value: White=0.12 (very precise) /Black=0.33} 1-0

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.26"]
[Round "8.2"]
[White "Rodi, Luis Ernesto"]
[Black "Supi, Luis Paulo"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2347"]
[BlackElo "2581"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,54,8,16,19,23,29,18,31,21,2,42,22,6,17,0,6,45,-31,-37,-35,-40,-43,-11,-225,-203,-210,-193,-376,-362,-379,-398,-402,-379,-425,-414,-386,-308,-757,-754,-859,-823,-894,-853,-1156,-1162,-2319,-2237]} 1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Nf3 a6 5. Bd3 Nc6 6. O-O {B23: Closed Sicilian: Lines without g3.} d6 7. Bc4 Nf6 8. d4 {The position is equal.} Bg4 $5 {[%mdl 4] A promising side line.} 9. dxc5 {[#]} e6 $146 (9... dxc5 {feels hotter.} 10. Be3 Qc7 11. h3 Bxf3 12. Qxf3 Nd4) ({Predecessor:} 9... dxc5 10. Be2 Bxf3 11. Bxf3 Qxd1 12. Rxd1 Nd4 13. Be3 Nxc2 14. e5 Nxe3 15. fxe3 Ng4 16. Bxg4 e6 17. Rac1 Be7 {1-0 (28) Korinek,J (1803)-Fiser,O (1377) LSS email 2013}) 10. h3 Bxf3 11. Qxf3 dxc5 12. a4 {To avoid b5} Rg8 13. Re1 ({Better is} 13. Rd1 $14 Bd6 14. Bg5) 13... Ne5 $15 14. Qe2 g5 {Prevents Bf4.} ({Don't play} 14... Qd4 15. Bb3 c4 {[#]} 16. Be3 $1 $16) 15. Rd1 Nfd7 $1 {[%cal Oh7h5]} 16. f4 $2 {This move loses the game for White.} (16. Qf1 $11 {and White stays safe.}) 16... gxf4 $19 17. Bxf4 Qh4 $1 {[%csl LRf4,LRh3]} 18. Bxe5 (18. Rxd7 {only move.} Nxd7 19. Rf1) 18... Nxe5 19. Bb5+ Ke7 20. Qe3 ({Much worse is} 20. Kh1 axb5 21. Qxb5 Kf6 22. Qxb7 Be7 $19) 20... Rc8 {The board is on fire.} ({Weaker is} 20... axb5 21. Qxc5+ Kf6 22. Rf1+ Kg6 23. Qxe5 $16) 21. Nd5+ exd5 22. Rxd5 Qg5 {[%csl Gg8][%cal Rg5g2]} 23. Qe2 (23. Qxg5+ Rxg5 24. Be2) 23... axb5 {Black is clearly winning.} 24. Rf1 Bh6 {...Qg3 is the strong threat.} 25. Kh1 f6 26. Rf5 Qg3 {aiming for ...Bf4.} 27. Qf1 {[#]} Ng4 $1 {Weighted Error Value: White=1.10/Black=0.07 (flawless)} 0-1

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.26"]
[Round "8.3"]
[White "Di Berardino, Diego Rafael"]
[Black "Languidey, Simon Alejandro"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "2483"]
[BlackElo "2403"]
[Annotator "TA"]
[PlyCount "37"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,37,30,35,0,-33,-33,-51,-21,-109,-104,-120,-127,-99,-94,-110,0,-120,0,-137]} 1. d4 e6 2. c4 Nf6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 Nc6 9. Qxc4 Qd5 10. Nbd2 Rd8 11. e3 Qh5 {E05: Open Catalan: 5 Nf3 Be7.} 12. b3 e5 $1 13. dxe5 {[#]} Nxe5 $146 {Black is slightly better.} ({Predecessor:} 13... Ng4 14. h3 Ngxe5 15. g4 Nxc4 16. gxh5 Bf6 17. Rb1 Nxd2 18. Nxd2 Bf5 19. Ne4 Bh4 {½-½ (42) Bok,B (2591)-Lobanov,S (2394) St Petersburg 2015}) 14. Qxc7 {[#]} (14. Nxe5 $11 {remains equal.} Qxe5 15. Rb1) 14... Nc6 $1 $17 {And now ...Bd6 would win.} 15. e4 Bd6 {[%mdl 1024] Black has strong compensation.} 16. Qb6 Bc5 17. Qc7 Bd6 18. Qb6 Bc5 19. Qc7 {Weighted Error Value: White=0.34/Black=0.34} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.27"]
[Round "8.4"]
[White "El Debs, Felipe de Cresce"]
[Black "Quintiliano Pinto, Renato R."]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2553"]
[BlackElo "2468"]
[Annotator "TA"]
[PlyCount "170"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,170,0,8,0,0,0,4,0,12,4,0,0,9,15,15,-8,0,-8,-10,-12,0,2,18,0,0,0,0,0,37,43,39,44,54,-6,-14,-11,-28,-102,-103,-100,-25,-25,-16,-24,0,0,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-4,-12,-8,-8,-2,-2,-4,-29,-21,-25,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-7,0,-36,0,-15,-7,-16,-7,-23,-23,-23,-23,-23,-23,-23,-13,-28,-7,-23,-23,-1532,-274,-1504,-30,-12840,-12840,-12841,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-12844,-12844,-12845,-12845,-12845,-12846,-12846,-12847,-12847,-12847]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qc2 b6 9. Bf4 Ba6 10. Nbd2 Nbd7 11. Rfe1 {E11: Bogo-Indian.} Nh5 12. Be3 Bb7 {[#]} 13. Rac1 $146 {The position is equal.} ({Predecessor:} 13. Rad1 f5 14. Nf1 Rc8 15. Ne5 Nhf6 16. Nd3 Re8 17. b4 Bf8 18. c5 Ba6 19. a4 {0-1 (42) Nechepurenko,R (2122)-Bryzgalin,K (2446) Samara 2002}) 13... f5 14. cxd5 exd5 15. Nf1 Bd6 16. Bg5 Qe8 17. Nh4 g6 18. Nd2 Ndf6 19. e3 Ne4 20. Bh6 Rf7 21. a3 Nhf6 {[%cal Oe4f2]} 22. Bf4 $1 {Strongly threatening Nxe4.} Bf8 23. Nhf3 h6 24. Ne5 Rh7 25. Nxe4 fxe4 26. g4 (26. Nxc6 $2 Rc8 27. Qd2 Bxc6 $19) (26. h4 $14) 26... g5 $11 27. Bg3 h5 28. h3 (28. Nxc6 $2 Rc8 29. Qe2 Rxc6 $19) (28. gxh5 $11 Nxh5 29. Qb3 (29. Nxc6 $2 Nxg3 30. hxg3 Rc7 $19)) 28... hxg4 $1 $17 29. hxg4 Qe6 ({Better is} 29... Bd6 $17 30. f3 Nd7) 30. f3 $11 (30. Nxc6 $2 Rc8 31. Qe2 Bxc6 $19) 30... c5 31. Rf1 {[%cal Ob2b4]} (31. dxc5 Bxc5 32. fxe4 Nxe4 33. Bxe4 dxe4 $19) 31... Bd6 (31... Re8 {keeps more tension.} 32. fxe4 Nxe4 33. Bxe4 dxe4 34. Rf5 cxd4 35. Rxg5+ Rg7) 32. fxe4 cxd4 33. exd4 Nxe4 34. Qd3 Bxe5 35. Bxe5 {Threatens to win with Rf5.} Qxg4 36. Rf3 Rf8 $1 37. Rxf8+ Kxf8 38. Qb5 Rf7 {...Rf2 is the strong threat. Dancing on a razor blade.} 39. Rf1 {Prevents Rf2.} Rxf1+ 40. Qxf1+ Ke8 41. Qb5+ Qd7 42. Qb3 Ke7 43. Qf3 Bc8 44. Qb3 Qc6 45. Qe3 $1 Qg6 46. Qc1 Bd7 47. Qc7 Qc6 48. Qxa7 Qc1+ 49. Kh2 Qxb2 (49... Nf2 $5 50. Bf6+ (50. Bxd5 Ng4+ 51. Kg2 Qc2+ 52. Kh3 Ne3+) 50... Kxf6 51. Qxd7 Qf4+ 52. Kg1 Ng4 53. Qd8+ Kg7 54. Qd7+ Kh6 55. Qe6+ Nf6 $11) 50. Qb8 g4 51. Qg8 Qf2 52. Qh7+ Ke8 {And now ...g3+ would win.} 53. Qg6+ Qf7 54. Qh6 Be6 55. Qh8+ Kd7 56. Qh4 ({Reject} 56. Qb8 g3+ 57. Bxg3 Qh5+ 58. Kg1 Nxg3 59. Qb7+ Ke8 60. Qb8+ Kf7 61. Qxg3 (61. Qc7+ Kf6 $17) 61... Qd1+ 62. Kh2 Qxd4 63. Qc7+ Ke8 $17) 56... Qg6 57. Qh8 g3+ 58. Kg1 $1 Nd2 {( -> ...Qb1+)} 59. Qg7+ Qxg7 60. Bxg7 {[%mdl 4096] Endgame KBB-KBN. This bishop pair is nice.} Nc4 61. Bf8 Ne3 62. Bf1 Bf5 63. Bh6 Nc2 64. a4 Be4 65. Bg2 $2 {[%mdl 8192]} (65. Bb5+ $11 Ke6 66. Bf4) 65... Kc6 $2 (65... Bxg2 66. Kxg2 Kc6) 66. Bg7 $2 (66. Bf1 Nxd4 67. Be3) 66... Ne3 $2 (66... Bxg2 $1 $19 67. Kxg2 Ne3+ 68. Kh1 Nc4) 67. Bxe4 $2 {[%mdl 8192]} (67. Bf1 $11) 67... dxe4 {KB-KN} 68. Be5 Nf5 $2 (68... Kd5 $19 69. Bb8 Nc4 70. Bxg3 Kxd4) 69. Kg2 Kd5 (69... e3 $5 70. Kf3 Kd5 $11) 70. Bc7 Kc6 71. Be5 $1 e3 ({But not} 71... Kd5 $6 72. Bc7 $17) 72. Kf3 Kd5 73. Bc7 Nxd4+ 74. Kxe3 Kc5 75. a5 {[%cal Ba4a5,Ba5a6,Ba6a7][%mdl 32]} Nf5+ 76. Kf3 b5 {[%cal Bb6b5,Bb5b4,Bb4b3,Bb3b2][%mdl 32]} 77. a6 {aiming for a7.} Kc6 78. a7 Kb7 79. Bb6 $1 b4 80. Ke2 $1 b3 81. Kd3 $2 {[%mdl 8192]} Ne7 $1 $19 {Black is clearly winning.} ({Inferior is} 81... b2 82. Kc2 $11) 82. Bd4 Nd5 $1 83. Kd2 {[#]} Nf4 $1 84. Be3 {[#]} Ne2 $1 {[%mdl 512]} 85. Bb6 {[#]} (85. Kd3 b2) 85... b2 $1 {Weighted Error Value: White=0.08 (flawless) /Black=0.08 (flawless)} 0-1

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.26"]
[Round "8.5"]
[White "Alboredo, Julia"]
[Black "Pereira, Silvio Cunha"]
[Result "1-0"]
[ECO "C53"]
[WhiteElo "2216"]
[BlackElo "2217"]
[Annotator "ChessBase"]
[PlyCount "57"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:06]} e5 {[%emt 0:00:05]} 2. Nf3 {[%emt 0:00:13]} Nc6 {[%emt 0:00:05]} 3. Bc4 {[%emt 0:00:22]} Bc5 {[%emt 0:00:06]} 4. c3 {[%emt 0:00:18]} Bb6 {[%emt 0:01:19]} 5. d4 {[%emt 0:00:31]} Qe7 {[%emt 0:00:06]} 6. Bg5 {[%emt 0:00:26]} Nf6 {[%emt 0:00:20]} 7. d5 {[%emt 0:00:23]} Nd8 {[%emt 0:00:05]} 8. d6 {[%emt 0:00:17]} cxd6 {[%emt 0:00:06]} 9. Na3 {[%emt 0:00:44]} a6 {[%emt 0:01:11]} 10. O-O {[%emt 0:02:07]} Ne6 {[%emt 0:00:36]} 11. Bxf6 {[%emt 0:02:12]} Qxf6 {[%emt 0:00:06]} 12. g3 {[%emt 0:04:39]} h5 {[%emt 0:02:54]} 13. Nh4 {[%emt 0:15:06]} Ng5 {[%emt 0:14:51]} 14. Bd5 {[%emt 0:14:55]} Nh3+ {[%emt 0:09:20]} 15. Kg2 {[%emt 0:00:33]} Nf4+ {[%emt 0:09:00]} 16. Kh1 {[%emt 0:02:02]} Bd8 {[%emt 0:07:11]} 17. Nc4 {[%emt 0:03:36]} Nxd5 {[%emt 0:05:51]} 18. Qxd5 {[%emt 0:01:26]} Qe6 {[%emt 0:00:37]} 19. Nxd6+ {[%emt 0:13:03]} Kf8 {[%emt 0:01:34]} 20. Rad1 {[%emt 0:04:33]} Rh6 {[%emt 0:11:19]} 21. Nhf5 {[%emt 0:02:04]} Rf6 {[%emt 0:01:02]} 22. Qc5 {[%emt 0:04:20]} b6 {[%emt 0:01:15]} 23. Qe3 {[%emt 0:00:06]} Rg6 {[%emt 0:03:01]} 24. f4 {[%emt 0:01:36]} Kg8 {[%emt 0:03:42]} 25. Rd5 {[%emt 0:02:47]} exf4 {[%emt 0:03:25]} 26. gxf4 {[%emt 0:00:27]} Bc7 {[%emt 0:07:54]} 27. Rfd1 {[%emt 0:05:55]} f6 {[%emt 0:00:44]} 28. Rg1 {[%emt 0:01:08]} Rxg1+ {[%emt 0:00:55]} 29. Qxg1 {[%emt 0:00:09]} 1-0

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.27"]
[Round "9.1"]
[White "Pereira, Silvio Cunha"]
[Black "Stamenkovic, Dragan"]
[Result "0-1"]
[ECO "B73"]
[WhiteElo "2217"]
[BlackElo "2378"]
[Annotator "TA"]
[PlyCount "126"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,126,28,28,31,14,23,-12,-6,-6,-6,-8,-6,-8,-8,-40,-44,-52,-55,-67,-42,-46,-46,-47,-47,-100,-42,-48,-52,-58,-47,-60,-51,-51,-35,-35,0,-49,-35,-43,-35,-50,-56,-70,-60,-58,-62,-111,-99,-137,-133,-121,0,0,0,-84,-6,-22,0,-68,0,-110,-51,-83,-85,-245,-228,-319,-318,-294,-315,-287,-239,-239,-245,-320,-313,-285,-230,-357,-404,-360,-229,-430,-460,-567,-508,-495,-479,-486,-484,-554,-460,-560,-348,-331,-278,-322,-307,-772,-750,-1116,-625,-1060,-1057,-1288,-927]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. Qd2 Ng4 9. Bxg4 Bxg4 10. O-O O-O 11. Nd5 {is now more promising than 11.f4.} Bd7 12. c4 Rc8 {[%cal Ba8c8,Bc8c4,Bc4d4][%mdl 32] B73: Sicilian Dragon: Classical System without 9 Nb3.} 13. Rac1 {[#]} e6 $146 ({Predecessor:} 13... Ne5 14. b3 Ng4 15. Bg5 f6 16. Bf4 e6 17. h3 exd5 18. hxg4 dxc4 19. bxc4 Bxg4 {1-0 (48) Rogic,D (2566)-Tuncer,U (2329) Austria 2014}) 14. Nc3 (14. Nxc6 {with more complications.} Bxc6 15. Nc3 Qa5 16. Rfd1 Rfd8 17. Bd4) 14... Nxd4 {The position is equal.} 15. Bxd4 Rxc4 16. Bxg7 Kxg7 17. Qxd6 {Black must now prevent Rfd1.} Bc6 18. Qa3 Qb6 19. b3 Rd4 20. Qb2 {Ne2 is the strong threat.} e5 {Black is more active.} 21. Qe2 Rfd8 22. Rc2 $1 {Inhibits Rd2.} a6 23. h4 (23. h3 $15) 23... h5 ({Black should play} 23... Qc5 $17) 24. Qe3 Qb4 {[%cal Rc6e4]} 25. f3 Rd3 26. Qc1 Qe7 27. Qg5 Qc5+ 28. Kh2 {[%cal Oc3d5]} R8d7 29. Qc1 (29. Nd5 $11 Qxc2 30. Qxe5+ Kg8 31. Nf6+ Kf8 32. Nh7+ Kg8 33. Nf6+ Kf8 34. Nh7+ Kg8 35. Nf6+) 29... Qd6 30. Rff2 Qd4 {[%cal Od3c3]} (30... Qe7 {is interesting.} 31. Qg5 f6 32. Qc1 f5 33. Qg5 Qxg5 34. hxg5 Re3) 31. Rf1 Rd2 32. Rxd2 Qxd2 33. Qxd2 Rxd2 $15 {[%mdl 4096] Endgame KRB-KRN} 34. Rc1 {To avoid Rc2} (34. Rd1 $1 $15 {was preferrable.} Rc2 35. Rd3) 34... f5 $17 35. Nd5 fxe4 (35... Rxa2 $6 36. Nb4 Ra3 37. Nxc6 bxc6 38. exf5 $11) (35... Bxd5 36. exd5 Kf6 37. Rc7 $11) 36. fxe4 Kf8 (36... Rxa2 37. Nb4 Re2 38. Nxc6 bxc6 39. Rxc6 $15) (36... a5 $17 37. Nc3 Kf6) 37. Rf1+ $1 $11 Kg7 38. Nc7 {[#]} (38. Rc1 $1 $11 {keeps the balance.}) 38... Rd6 (38... Bxe4 39. Ne6+ Kh8 40. Rf8+ Kh7 41. Ng5+ Kg7 42. Ne6+ (42. Nxe4 Rd4 $11) 42... Kh7 43. Ng5+ Kg7 44. Rf7+ (44. Nxe4 Rd4 $11) 44... Kg8 {[#]} 45. Nxe4 $1 $16) (38... Bd7 $1 $17 {Threatening ...Re2.} 39. Rc1 Rxa2) 39. Kg3 $1 Rd3+ 40. Kh2 (40. Rf3 $11 Rd6 41. Rf1) 40... Rd6 ({Much worse is} 40... Bxe4 41. Ne6+ Kh8 42. Rf8+ Kh7 43. Ng5+ Kg7 44. Ne6+ Kh7 45. Ng5+ Kg7 46. Ne6+ Kh7 $11) (40... Bd7 $1 $15) 41. a4 (41. Kg3 $1 $11) 41... Rf6 (41... Kg8 $17 42. Nd5 Bxd5 43. exd5 Kg7) 42. Rc1 Kf7 43. Rc4 $2 {This costs White the game.} (43. Nd5 $17 {was the only chance.} Rf2 44. Re1) 43... Rf4 $19 44. Nxa6 Rxh4+ 45. Kg1 Rxe4 46. Rc2 Rg4 {aiming for ...Bxg2.} ({Not} 46... bxa6 47. Rxc6 Rb4 48. Rxa6 $17) 47. Nc5 {[%cal Oc5b7]} Ke7 48. Nxb7 Be4 ({Inferior is} 48... Bxb7 49. Rc7+ Kd6 50. Rxb7 $11) 49. Rc7+ Ke6 50. a5 (50. b4 $142 Rxg2+ 51. Kf1) 50... Rxg2+ 51. Kf1 {And now Nc5+ would win.} Rb2 52. Rg7 $2 (52. a6 Rxb3 53. Nc5+ Kd6 54. Rc8 Rb1+ 55. Ke2 Rb2+ 56. Ke3) 52... Kf6 53. Rd7 Rxb3 54. Nc5 Rb1+ 55. Kf2 Bh1 56. a6 Ra1 57. a7 Kf5 {Hoping for ...g5.} 58. Rf7+ Kg4 59. Nd3 Ra5 60. Kg1 $2 {[#]} (60. Ke3 Kg5 61. Rh7) 60... Kg3 $1 {Black is clearly winning.} 61. Ne1 {Prevents Bg2.} (61. Nc1 Bf3) 61... Bd5 62. Rg7 Be4 {( -> ...Ra1)} 63. Kf1 h4 {Weighted Error Value: White=0.61/Black=0.30} 0-1

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.27"]
[Round "9.2"]
[White "Quintiliano Pinto, Renato R."]
[Black "Alboredo, Julia"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2468"]
[BlackElo "2216"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,65,0,-2,1,0,11,2,8,0,0,0,0,0,0,-21,0,0,95,102,96,81,87,29,95,72,87,105,200,206,426,433,523,372,460,480,468,452,441,427,452,312,300,318,311,293,418,427,402,420,637,620]} 1. d4 d5 {[%cal Bd7d5,Bd5c4][%mdl 32]} 2. c4 c6 3. Nc3 dxc4 4. e4 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 5. a4 b4 6. Na2 Nf6 7. e5 Nd5 8. Bxc4 e6 9. Nf3 Bb7 {D10: Slav Defence: 3 cxd5 (without early Nf3) and 3 Nc3.} 10. O-O Be7 {Prevents Bg5.} 11. Bd2 a5 {The position is equal.} 12. Nc1 O-O 13. Nb3 {Prevents c5.} Nd7 14. Qe2 c5 15. Bb5 cxd4 (15... Nc7 $5 {[%cal Rc7b5]}) 16. Rfc1 {[#]} N5b6 $146 (16... Nc3 $11 17. bxc3 dxc3) ({Predecessor:} 16... Nb8 17. Nbxd4 Qb6 18. Rc4 Rc8 19. Rac1 Rxc4 20. Rxc4 Na6 21. Ng5 h6 22. Ne4 Nc5 23. Nxc5 Bxc5 {½-½ (34) Sasikiran,K (2430)-Summerscale,A (2420) Hove 1997}) 17. Nfxd4 $16 (17. Nbxd4 $6 Nc5 $11) 17... Nb8 18. Qg4 {Threatens to win with Bh6.} Kh8 19. Nf3 ({Better is} 19. Rd1 $16) 19... f5 (19... N8d7 $11) 20. exf6 Bxf6 21. Ng5 (21. Qxe6 $2 Bd5 22. Qe3 Bxb2 $17) 21... Bxg5 (21... Qd5 $16) 22. Bxg5 $40 {[%mdl 128] White goes for the king.} (22. Qxg5 Bd5 $16) 22... Qd5 (22... Qd6 23. Nc5 Bd5) 23. Nc5 Bc8 {[%cal Bb7c8,Bc8f5,Bf5g6,Bg6f7][%mdl 32]} 24. Be3 e5 25. Qh4 Bf5 26. g4 Bg6 27. Rd1 Qf3 28. Qg3 {Active counter play!} Qxg3+ 29. hxg3 {[#] And now Ne6 would win.} ({Don't take} 29. fxg3 $6 Bf7 30. Ne4 Nc4 $18) 29... Bf7 {Prevents Ne6.} 30. Ne4 Nd5 (30... Nc4 $142 31. Nd6 (31. Bc5 Rc8 $16) 31... Nxe3 32. Nxf7+ (32. fxe3 Be6 $16) 32... Kg8) 31. Bc5 Rd8 32. Be7 {A strong pair of Bishops.} Rc8 {[#]} (32... Rd7 $142 33. Bd6 Rda7) 33. Nd6 $1 {[%csl LRc8,LRf7] Weighted Error Value: White=0.18 (very precise) /Black=0.46} 1-0

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.27"]
[Round "9.3"]
[White "Languidey, Simon Alejandro"]
[Black "El Debs, Felipe de Cresce"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2403"]
[BlackElo "2553"]
[Annotator "TA"]
[PlyCount "38"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,38,23,19,15,0,0,0,0,0,8,0,0,0,17]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. e3 h6 7. Bh4 Be7 8. Bd3 O-O 9. Nf3 Nbd7 10. O-O Re8 11. Qc2 Ne4 12. Bxe4 Bxh4 13. Bh7+ Kh8 14. Bd3 Be7 {The position is equal. 14...Be7 is better than 14...Bf6. D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2).} 15. Rfe1 Kg8 {[#]} 16. Bh7+ $146 ({Predecessor:} 16. Rab1 a5 17. a3 Bd6 18. e4 dxe4 19. Nxe4 Bf8 20. Ng3 Rxe1+ 21. Rxe1 Nf6 22. Bc4 Nd5 23. Ne5 Be6 24. h3 Qc7 25. Nh5 Rd8 26. Qd3 {1-0 (53) Martirosyan,H (2621)-Sarana,A (2666) Warsaw 2021}) 16... Kh8 17. Bd3 Kg8 18. Bh7+ Kh8 19. Bd3 Kg8 {A rather calm draw.  Weighted Error Value: White=0.04 (flawless) /Black=0.00 (flawless)} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.27"]
[Round "9.4"]
[White "Supi, Luis Paulo"]
[Black "Di Berardino, Diego Rafael"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2581"]
[BlackElo "2483"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,53,0,34,12,12,21,25,0,0,0,0,0,0,0,0,0,0,0,0,-29,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 O-O 9. Be2 cxd4 10. cxd4 Qa5+ 11. Bd2 Qxa2 12. O-O Bg4 13. Rxb7 {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3.} Bxf3 14. Bxf3 Bxd4 15. e5 {White has an edge.} (15. Bb4 $5 {[%cal Rd1d4]} Rd8 16. Qc1 $14 (16. Bxe7 $2 Bxf2+ 17. Rxf2 Rxd1+ 18. Bxd1 Qa1 $19) (16. Rxe7 $2 Nc6 $19)) 15... Na6 {[%cal Bb8a6,Ba6c5,Bc5d3,Bd3e1][%mdl 32]} 16. Rxe7 Rad8 {[#] White must now prevent ...Bc5.} 17. e6 fxe6 {Hoping for ...Bc5.} 18. Qe1 {[#]} Nc5 $146 ({Predecessor:} 18... Bf6 19. Rxa7 Rxd2 20. Rxa6 Qxa6 21. Qxd2 Qb6 22. g3 Bd4 23. Qe2 Rf6 24. Kg2 Qb2 25. Qxb2 Bxb2 {½-½ (44) Grischuk,A (2776)-Vachier Lagrave,M (2760) Bucharest 2021}) 19. Be3 {Strongly threatening Bxd4. This bishop pair is nice.} Nd3 20. Bxd4 Nxe1 21. Rg7+ Kh8 22. Rd7+ {The position is equal.} Kg8 (22... e5 $2 23. Bxe5+ Rf6 24. Bxf6+ Kg8 25. Rxd8+ $18) 23. Rg7+ Kh8 24. Rd7+ Kg8 (24... e5 $2 25. Bxe5+ Rf6 26. Bxf6+ Kg8 27. Rxd8+ $18) 25. Rg7+ Kh8 26. Rd7+ Kg8 (26... e5 $2 27. Bxe5+ Rf6 28. Bxf6+ Kg8 29. Rxd8+ $18) 27. Rg7+ {A balanced but interesting game.  Weighted Error Value: White=0.04 (flawless) /Black=0.02 (flawless)} 1/2-1/2

[Event "Magistral Osasco 60 Anos 2022"]
[Site "Sao Paolo"]
[Date "2022.02.27"]
[Round "9.5"]
[White "Cubas, Jose Fernando"]
[Black "Rodi, Luis Ernesto"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2469"]
[BlackElo "2347"]
[Annotator "TA"]
[PlyCount "116"]
[EventDate "2022.02.19"]
[EventType "tourn"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,116,18,8,26,8,41,53,63,40,35,37,54,49,45,22,31,24,23,-2,-8,-13,0,0,0,-14,-10,-6,0,-33,-36,-36,0,0,0,0,0,0,0,0,0,0,0,0,0,-12,-15,-18,0,-86,-70,-80,-22,-60,-22,-24,-10,-25,0,0,0,0,233,252,251,250,240,164,164,163,170,170,202,202,266,106,100,27,27,84,62,0,0,0,0,0,0,0,0,0,0,-1789,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. Bb3 a6 7. h3 Ba7 8. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1e3,Be3f5][%mdl 32]} h6 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 9. Nf1 g5 10. Be3 Qe7 {White is slightly better.} 11. Bxa7 Nxa7 12. Ne3 Nc6 {[#]} 13. Qd2 $146 ({Predecessor:} 13. Qe2 Be6 14. Nd5 Bxd5 15. exd5 Nb8 16. O-O-O Nbd7 17. d4 O-O-O 18. dxe5 dxe5 19. Rhe1 {0-1 (27) Saya,E (2219)-Tang,A (2538) Chess.com INT 2020}) 13... Bd7 14. O-O-O O-O-O 15. Rhe1 Qf8 16. g4 Ne7 17. Nf5 Be6 18. Qe3 Kb8 19. d4 Bxb3 20. axb3 Nxf5 21. exf5 (21. gxf5 $5 {[%cal Rd4e5]} Qe7 22. dxe5 dxe5 23. Rxd8+ Rxd8 24. Rd1 $11) 21... e4 22. Nd2 d5 23. f3 Re8 {[%cal Bd8e8,Be8e4,Be4f4][%mdl 32]} 24. fxe4 Nxe4 25. Nxe4 Rxe4 26. Qg3 Rf4 27. Re5 Qd6 28. Qe3 Ka7 29. Qe2 h5 30. gxh5 Rh4 31. Qg2 (31. Re7 $11) 31... f6 $17 32. Rxd5 {[#]} Qf4+ (32... Qe7 $1 $17 33. Rd2 c6) 33. Kb1 R8xh5 {Strongly threatening ...g4.} 34. Rf1 $1 Qe3 {[%cal Og5g4][%mdl 1024] Black has compensation.} 35. Rd7 Qd3+ 36. Ka2 Qb5 37. Rd5 $40 {[%mdl 128] White is up to no good.} Qc6 (37... Qe8 $11 {and Black stays safe.}) 38. Re1 $18 {And now Re6 would win.} Qb6 39. Re6 c6 40. Rc5 Rxh3 41. Rxf6 {Threatens to win with Rf7.} Rh2 42. Qg3 {Rf8 would kill now.} Qd8 {Prevents Rf8.} 43. Qe5 {[%cal Oc5c6] White threatens Rcxc6! and mate.} Qb8 44. Qe7 $2 (44. Rg6 $18 {is more deadly.}) 44... Rh7 $16 45. Rf7 (45. Qe6 $16) 45... Rxf7 $11 46. Qxf7 {[%mdl 4096] Endgame KQR-KQR} Qf4 47. Rxc6 ({White should play} 47. Ka3 $1 $14 Qd6 48. Qg6) 47... Qd2 {[%csl Gh2][%cal Rd2b2]} (47... Qc1 $2 {[#]} 48. Rxa6+ $3 {[%mdl 512]} Kxa6 49. Qc4+ Kb6 50. Qc5+ Ka6 51. Qa3+ Kb6 52. Qd6+ Ka7 53. Qxh2 $18) 48. Ka3 Qxb2+ 49. Kb4 {Threatening mate with Qc7.} Qe2 {( -> ...Qb5+)} 50. Rc5 {To avoid Qb5+} Rh6 $1 {White must now prevent ...Qf1.} 51. Ka3 {Qf8 is the strong threat.} Qf1 (51... Rh2 52. Qf8 (52. Kb4 Rh6 $11) 52... Rh7 53. f6 $18) 52. Re5 $2 {[%mdl 8192]} (52. Qf8 $11 Qa1+ 53. Kb4 Rb6+ 54. Kc4) 52... Rb6 $2 ({Black should try} 52... Qa1+ $19 53. Kb4 Rb6+ 54. Kc4 Qf1+ 55. Kd5 Qf3+ 56. Kc4 g4) 53. b4 {The position is equal.} Qc1+ 54. Kb3 Qb1+ 55. Ka3 $1 {Active counter play!} Qc1+ 56. Kb3 Qb1+ 57. Ka3 $1 Qc1+ 58. Kb3 Qb1+ {Quite a comeback for White.  Weighted Error Value: White=0.34/Black=0.24 (precise)} 1/2-1/2

