[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "1.1"]
[White "Dos Santos, Guilherme Fortes"]
[Black "Pichot, Alan"]
[Result "0-1"]
[ECO "A68"]
[WhiteElo "1748"]
[BlackElo "2625"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,60,0,0,-43,0,-61,-51,-63,-33,-131,-121,-181,-186,-287,-239,-264,-237,-250,-238,-304,-295,-302,-310,-305,-312,-310,-295,-305,-295,-360,-337,-329,-301,-309,-319,-432,-421,-548,-531,-835,-837,-837,-830,-830,-827]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Bd3 exd5 9. cxd5 b5 {aiming for ...c4.} 10. Nxb5 {A68: Modern Benoni: Four Pawns Attack without 9...Re8.} (10. e5 $11 dxe5 11. fxe5) 10... Nxe4 11. O-O ({White should play} 11. Bxe4 $11 Re8 12. Nd2) 11... Re8 (11... Qb6 $5 {[%cal Rc5c4]} 12. Re1 f5 $15) 12. Re1 {Black is slightly better.} a6 {[#]} (12... Nf6 $5 {[%cal Re8e1]}) 13. Bxe4 $146 (13. Na3 $1 $15 Nf6 14. Rxe8+ Nxe8 15. Nc4) ({Predecessor:} 13. Na3 Nf6 14. Nc4 Rxe1+ 15. Qxe1 Bg4 16. Be4 Nxe4 17. Qxe4 Nd7 18. h3 Nf6 19. Qd3 {0-1 (69) Alavi Moghaddam,S (2445)-Jones,G (2670) Chess.com INT 2020}) 13... axb5 $17 14. Bd2 (14. f5 $17) 14... Nd7 $19 15. Qb3 (15. a4 $142) 15... Nf6 16. Bc2 Rxe1+ 17. Rxe1 Qb6 18. Be3 Bb7 19. Bd3 Bxd5 20. Qxb5 Qxb5 21. Bxb5 Rxa2 22. Bc1 Ne4 23. Ng5 Bd4+ ({Don't go for} 23... Bxb2 $2 24. Nxe4 Bxe4 25. Rxe4 Bxc1 26. Kf1 $19) 24. Kf1 Nxg5 ({Worse is} 24... Bxb2 25. Nxe4 Bxe4 26. Bc4 $17) 25. fxg5 Bxb2 26. Re8+ Kg7 {Black is clearly winning.} 27. Bf4 Bd4 {[#] Hoping for ...Rf2+.} 28. Bxd6 {Intending Bf8+ and mate.} Bxg2+ 29. Ke1 Bc3+ 30. Kd1 Rd2+ {White did not feel at home in the position after the opening.  Weighted Error Value: White=0.63/Black=0.09 (flawless)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "1.2"]
[White "Delgado Ramirez, Neuris"]
[Black "Rodrigues, Natanael Isau"]
[Result "1-0"]
[ECO "E14"]
[WhiteElo "2614"]
[BlackElo "1748"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,57,0,0,49,8,35,10,18,0,0,0,16,0,50,37,62,43,31,29,22,26,112,102,103,106,141,144,184,185,245,243,422,431,405,414,637,615,698,689,758,662]} 1. e4 c6 2. c4 d5 3. cxd5 cxd5 4. exd5 Nf6 5. Nc3 Nxd5 6. d4 e6 7. Nf3 Be7 8. Bd3 b6 9. O-O Bb7 10. Re1 Nf6 {[#] E14: Queen's Indian: Classical Variation (4 e3).} (10... O-O $11 {deserves consideration.}) 11. Bc2 $146 (11. Bb5+ $1 $14 {feels stronger.} Bc6 12. Qa4 Bxb5 13. Qxb5+ Qd7 14. a4) ({Predecessor:} 11. Bb5+ Nbd7 12. Ne5 O-O 13. Nxd7 Nxd7 14. d5 exd5 15. Nxd5 Bd6 16. Bf4 Bxf4 17. Nxf4 {½-½ (46) Jonas,V (1900)-Svoboda,V (1968) Czech Republic 2005}) 11... a6 12. a3 Nbd7 {The position is equal.} 13. Bg5 Nd5 14. Bd2 N7f6 15. Ne5 Nc7 (15... Rc8 $11) 16. Bg5 Nd7 17. Bxe7 {White is much more active.} (17. Bf4 {is interesting.} O-O 18. Qh5 g6 19. Qh6 Bf6 20. Bb3) 17... Qxe7 18. Qg4 Nxe5 19. dxe5 ({Don't play} 19. Qxg7 {[#]} Nf3+ $1 20. gxf3 O-O-O $15) 19... Kf8 (19... O-O $1 $11) 20. Rad1 h5 21. Qd4 Qc5 22. Qf4 $36 {[%mdl 2048] [#] Strongly threatening Rd7. Black is under strong pressure.} Qe7 {Inhibits Rd7.} 23. Be4 {Prevents Nd5.} g5 (23... Bxe4 $142 24. Qxe4 (24. Rxe4 g5 $18) 24... Rb8) 24. Qc1 $18 Ne8 $2 (24... Bxe4 {was necessary.} 25. Nxe4 Nd5 26. Nxg5 (26. Qxg5 Qxg5 27. Nxg5 h4 $16) 26... h4) 25. Bxb7 Qxb7 26. Qxg5 Rg8 (26... Qe7 $142 27. Qf4 h4) 27. Qh6+ {White is clearly winning.} Rg7 {[%csl Gg7][%cal Rb7g2]} 28. Ne4 Kg8 29. Qxh5 {Weighted Error Value: White=0.09 (flawless) /Black=0.55} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "1.3"]
[White "Pereira Neto, Wladimir Nequesaurt"]
[Black "Bachmann, Axel"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "1747"]
[BlackElo "2594"]
[Annotator "TA"]
[PlyCount "28"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,28,-12,38,0,-3,-66,-5,-50,-49,-49,-45,-156,-151,-470,-472]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 {[%cal Bb8c6,Bc6e5,Be5f3][%mdl 32]} 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Re1 b5 (8... Bd6 $11) 9. Bf3 {B43: Sicilian: Kan Variation: 5 Nc3.} (9. Nxc6 $14 dxc6 10. e5) 9... Ne5 $1 $11 {[#]} 10. g3 $146 (10. Bf4 $11) ({Predecessor:} 10. Nd5 exd5 11. exd5 Bd6 12. Bf4 O-O 13. Rxe5 Bxe5 14. d6 Qxd6 15. Bxe5 Qxe5 16. Bxa8 d5 {0-1 (46) Skjolingstad,S (1749)-Royset,P (2285) Kragero 2018}) 10... b4 ({Better is} 10... Bc5 $15 11. Nb3 Bb6) 11. Nb1 (11. Nd5 $11 Nxf3+ 12. Qxf3 Nxd5 13. exd5) 11... Nxf3+ $15 12. Nxf3 Bc5 13. Nd4 (13. a3 $15) 13... Bb7 $17 14. e5 $2 {[#]} (14. a3 $17 {is a better chance.}) 14... Bxd4 {White did not feel at home in the position after the opening.  Weighted Error Value: White=1.06/Black=0.21 (precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "1.4"]
[White "Supi, Luis Paulo"]
[Black "Messias, Jose Vitor Lamosa Pr"]
[Result "1-0"]
[ECO "C43"]
[WhiteElo "2581"]
[BlackElo "1702"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,51,13,0,82,97,77,93,87,94,77,71,88,84,102,116,104,55,88,85,227,212,391,390,470,445,483,487,465,478,450,456,998,987,975,965,988,963]} 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Bd6 6. Nc3 Nxc3 7. bxc3 Nd7 8. O-O O-O 9. Re1 {[#]} f6 $146 {[#] C43: Petroff Defence: 3 d4.} (9... c5 $11 {remains equal.}) ({Predecessor:} 9... c5 10. Nxd7 Qxd7 11. dxc5 Bxc5 12. Qh5 g6 13. Qh4 Qc6 14. Bh6 Re8 15. Qf6 Bf8 16. Qxc6 Rxe1+ 17. Rxe1 bxc6 {½-½ (30) Oparin,G (2654)-Aronian,L (2782) Riga 2021}) 10. Qh5 $1 $16 {[%csl Gd3][%cal Rh5h7]} f5 11. Bg5 Nf6 {White is better.} 12. Qf3 {White is much more active. Black has bad knights.} c6 13. Bxf5 Bxf5 14. Qxf5 {Strongly threatening Qe6+.} Qc7 15. Qe6+ Kh8 16. Qh3 ({White should try} 16. Bxf6 $16 {Threatens to win with Bh4.} Rxf6 17. Qh3) 16... Kg8 17. Re3 Rae8 {To avoid Qe6+. This move loses the game for Black.} (17... Bxe5 $16 18. dxe5 Ne4) 18. Bxf6 $18 Rxf6 $2 {[#]} (18... gxf6 19. Rg3+ Kh8 20. Ng6+ Kg8) 19. Nd7 $1 Bxh2+ 20. Kh1 {White is clearly winning.} Rxe3 21. Nxf6+ gxf6 22. Qxe3 {KQR-KQB} ({Weaker is} 22. fxe3 Bd6 23. Qe6+ Kg7 24. Qg4+ Kf8 $18) 22... Bf4 23. Qe6+ Qf7 (23... Kg7 $142 24. Re1 Bd2 25. Qg4+ Kf8) 24. Qg4+ Bg5 25. f4 h5 26. Qc8+ {Weighted Error Value: White=0.04 (flawless) /Black=0.52} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "1.5"]
[White "Machado, Luiz Fernando"]
[Black "Fier, Alexandr"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "1740"]
[BlackElo "2572"]
[Annotator "TA"]
[PlyCount "42"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,42,0,0,-22,-18,-16,-16,-30,-14,-44,-30,-18,-14,-60,-30,-327,-331,-330,-258,-241,-241,-228,-226,-346,-328,-435,-375,-426,-390]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 Nc6 6. Nxc6 bxc6 7. O-O d5 8. exd5 cxd5 9. Bg5 {B40: Sicilian: 2...e6, Unusual lines.} Be7 10. Nd2 O-O 11. c3 {[#] The position is equal.} h6 $146 ({Predecessor:} 11... Bb7 12. Nf3 Nd7 13. Bf4 Nc5 14. Bc2 Bd6 15. Be3 f5 16. Bxc5 Bxc5 17. Nd4 Qb6 {1-0 (44) Ruiz Castillo,J (2091)-Acevedo,J (2168) Columbia 2009}) 12. Bh4 Rb8 13. b3 e5 14. c4 (14. Re1 $11 {is more appropriate.}) 14... Bb7 (14... e4 $5 {[%cal Re4d3]} 15. Be2 Bb7 16. cxd5 Nxd5 17. Bxe7 Qxe7 $15) 15. cxd5 $2 {[%mdl 8192] White does not recover from this.} (15. Re1 $11 {and White is okay.}) 15... Qxd5 $19 {[%csl Gb7][%cal Rd5g2] [#]} 16. Qf3 Qd4 {Prevents Ne4.} 17. Ne4 Bxe4 18. Bxe4 g5 {[%cal Bg7g5,Bg5g4][%mdl 32]} ({Weaker is} 18... Nxe4 19. Bxe7 Rfe8 20. Rfd1 Qxf2+ 21. Qxf2 $17) (18... Qxe4 19. Qxe4 Nxe4 20. Bxe7 $11) 19. Bc2 (19. Bxg5 $142 hxg5 20. Rae1) 19... Qxh4 20. Rad1 Qf4 21. Qh3 g4 {Weighted Error Value: White=0.77/Black=0.18 (very precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "1.6"]
[White "Mekhitarian, Krikor Sevag"]
[Black "Itagyba, Renan Fortes"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "2562"]
[BlackElo "1737"]
[Annotator "TA"]
[PlyCount "42"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,42,14,32,43,71,66,66,60,47,41,56,61,63,24,43,43,45,41,42,39,46,47,50,45,102,106,109,103,110,102,106,106,392,385,890]} 1. Nf3 c5 2. c4 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nc7 6. d4 {A34: Symmetrical English: 2 Nc3, lines with ...d5.} e6 7. Be3 (7. Bf4 {with more complications.} Bd6 8. Be3 Nba6 9. Bc4 O-O 10. O-O) 7... cxd4 {[#]} 8. Qxd4 $146 {White is slightly better.} ({Predecessor:} 8. Nxd4 Bb4 9. Qa4+ Nc6 10. O-O-O Bxc3 11. Nxc6 Bxb2+ 12. Kxb2 Bd7 13. Nxd8 Bxa4 14. Rd4 Bd7 15. Nxf7 O-O 16. Rxd7 Rxf7 17. Rxf7 Kxf7 18. Be2 b6 19. Rc1 {1-0 (19) Hornung,H (2050)-Gress,P Fuerth 2016}) 8... Qxd4 9. Nxd4 Bd7 10. Bf4 Bc5 11. O-O-O {White is much more active.} Bxd4 (11... Nba6 {looks sharper.} 12. f3 O-O-O 13. Nb3 Bb4 14. Bg3 Nc5) 12. Rxd4 Nc6 13. Rd2 e5 14. Be3 $36 {[%mdl 2048] White has the initiative.} O-O-O 15. Bc4 Be6 16. Bd5 Nb4 (16... Kb8 $14) 17. Bxe6+ $16 ({Reject} 17. Bxa7 $6 Ncxd5 18. exd5 Nxd5 $11) 17... Nxe6 18. Rxd8+ Rxd8 19. Bxa7 Nd4 20. Kb1 Rd6 $2 {[%mdl 8192] [#]} (20... Nd3 $16 21. Rd1 Nxf2) 21. Bc5 $1 $18 {[%csl LRb4,LRd6]} b6 $2 {Weighted Error Value: White=0.03 (flawless) /Black=0.44} (21... Rf6 22. Bxb4 Rxf2) 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "1.7"]
[White "Ferreira, Jose Carlos"]
[Black "Cuenca Jimenez, Jose Fernando"]
[Result "0-1"]
[ECO "E81"]
[WhiteElo "1748"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,86,8,17,9,14,-29,-22,-62,-38,-43,44,59,63,24,32,-179,-164,-163,-155,-240,-241,-239,-221,-227,-231,-233,-222,-228,-231,-274,-275,-277,-273,-273,-274,-298,-309,-292,-256,-255,-252,-294,-285,-281,-281,-390,-278,-474,-387,-514,-346,-522,-406,-721,-303,-408,-405,-394,-379,-396,-394,-499,-486,-535,-524,-737,-737,-735,-734,-715,-657,-1196,-1193]} 1. d4 Nf6 2. c4 g6 3. f3 Bg7 4. e4 d6 5. Nc3 O-O 6. Be3 c5 7. Nge2 Nc6 8. Qd2 Qa5 9. Rd1 {E81: King's Indian: Sämisch: 6th move deviations (including 6 Be3 c6).} a6 10. d5 (10. dxc5 {should be considered.} dxc5 11. b3) 10... Ne5 $11 11. Ng3 {[#] The position is equal.} h5 $146 {[%cal Ob7b5] Black is more active.} ({Predecessor:} 11... b5 12. cxb5 axb5 13. Bxb5 Ba6 14. a4 Bxb5 15. Nxb5 Qxa4 16. Nc3 Qa6 17. Nge2 Nc4 {0-1 (32) Reinke,K (2015)-Lupor,A (2285) Bad Woerishofen 2007}) 12. Bg5 Rb8 ({Black should play} 12... Qb4 $15) 13. f4 $1 $14 Ned7 14. Be2 {[%cal Oe4e5]} b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 15. b3 $2 {[#] Now White is beyond hope.} (15. Rc1 $1 $14 {keeps the upper hand.}) 15... Nh7 $36 {[%mdl 2048] Black is in control.} 16. Nb1 Qxd2+ 17. Kxd2 (17. Nxd2 $17 Nxg5 18. fxg5) 17... Nxg5 18. fxg5 Ne5 19. Na3 b4 20. Nc2 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 21. h3 a4 22. Ra1 Nd7 23. Rab1 Be5 {[%cal Bg7e5,Be5f4,Bf4g5][%mdl 32]} 24. Nf1 Bf4+ 25. Nfe3 Bxg5 26. g4 h4 27. Ne1 Ne5 28. Rf1 axb3 29. axb3 Ra8 30. Rb2 {Prevents Ra2.} Bd7 31. N1g2 $2 {[#]} (31. Nd3) 31... Ra7 32. Rfb1 Rfa8 {Hoping for ...f5.} 33. Bd1 (33. Ke1 $142) 33... Ra2 34. Ke2 (34. Ne1 $142) 34... Bc8 (34... Rxb2+ $142 35. Rxb2 Ra1) 35. Bc2 Bf6 {...Rxb2 is the strong threat.} 36. Rxa2 Rxa2 37. Ne1 Bg5 38. Nd1 f5 {Black is clearly winning.} 39. exf5 gxf5 40. Rb2 Rxb2 41. Nxb2 fxg4 42. hxg4 h3 43. Kf2 Bh4+ {Weighted Error Value: White=0.72/Black=0.36} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "1.8"]
[White "Hungaski, Robert"]
[Black "Rodio, Julia Brunetto"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2521"]
[BlackElo "1735"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,93,-20,-1,-16,-14,-20,-20,-26,14,14,16,19,13,18,30,26,99,88,100,93,93,15,20,17,9,16,62,57,62,45,44,48,35,45,43,41,41,49,50,22,33,29,54,47,52,37,40,47,79,78,69,46,54,16,74,0,86,0,-16,-58,-47,-56,-2,-57,0,0,62,62,79,62,62,62,62,63,89,112,866,823,897,854,6841,1470,1316,1179,1260,1233]} 1. e4 c5 2. Nc3 a6 3. f4 e6 4. Nf3 d5 5. d3 Nf6 6. Be2 {B23: Closed Sicilian: Lines without g3.} Be7 7. O-O Nc6 8. Qe1 {The position is equal.} Nd4 9. Bd1 O-O 10. e5 {Threatens to win with Nxd4.} Nd7 11. Nxd4 cxd4 12. Ne2 {[#]} f6 $146 (12... Qb6 $11) ({Predecessor:} 12... Qb6 13. b3 Nb8 14. Bb2 Nc6 15. Qf2 Bc5 16. a3 a5 17. Ng3 f6 18. exf6 Rxf6 {0-1 (48) Pavlov,V (1695)-Stojanov,A (2128) Ohrid 2017}) 13. Nxd4 $16 Bc5 {[#]} 14. c3 ({Of course not} 14. Be3 $6 Qb6 15. c3 fxe5 16. fxe5 Rxf1+ 17. Kxf1 Nxe5 $11) 14... Qb6 15. Be3 (15. exf6 $16 Nxf6 16. Qe3) 15... fxe5 $11 16. fxe5 Rxf1+ 17. Kxf1 {b4 is the strong threat.} Qxb2 (17... Nxe5 $11 {deserves consideration.} 18. b4 Bf8) 18. Bb3 $1 $14 Nf8 (18... Nxe5 $2 19. Rb1 Nxd3 20. Rxb2 Nxe1 21. Kxe1 $18) 19. Nc2 {[%cal Bd4c2,Bc2e1,Be1f3][%mdl 32]} Bxe3 20. Rb1 Bd2 $1 21. Rxb2 Bxe1 22. Nxe1 Bd7 23. Ke2 Ng6 24. Nf3 Kf7 25. Ke3 Bc6 26. d4 Rc8 27. Bc2 h6 {Prevents Ng5+.} 28. Bd3 Bb5 29. a4 Bc6 30. Rf2 {White is more active.} Nf8 31. Bc2 Nd7 {[#]} (31... a5 $11 {keeps the balance.}) 32. a5 (32. Nh4+ $1 $16 Kg8 33. Ng6) 32... Ke7 (32... Bb5 $11) 33. g4 (33. Nh4 $16) 33... Bb5 $11 34. Kd2 (34. c4 $11 Rxc4 35. Nh4) 34... Rf8 $15 35. Bd1 Nb8 (35... b6 $15) 36. g5 (36. Ke1 $11) 36... hxg5 ({Black should try} 36... Nc6 $15) 37. Rg2 $11 Rf5 (37... Nc6 $11) 38. Nxg5 $14 {And now Nh7 would win.} ({Much worse is} 38. Rxg5 Rxg5 39. Nxg5 Bd7 $11) 38... Nc6 {[#]} 39. Nxe6 $1 Kxe6 40. Bg4 {Hoping for Bh3.} g6 ({Not} 40... Nxa5 41. Bh3 $16 (41. Bxf5+ Kxf5 42. Rxg7 Be8 $14)) 41. h4 Nxa5 42. Bxf5+ gxf5 $2 {[%mdl 8192] A mistake that costs the game.} (42... Kxf5 $16 43. Rg5+ Kf4) 43. h5 $18 {Black must now prevent h6. White is clearly winning.} Nc4+ 44. Kc1 Ne3 {[#]} 45. h6 $1 {[%mdl 512]} Nxg2 46. h7 f4 47. h8=Q {Weighted Error Value: White=0.19 (very precise) /Black=0.25 (precise)} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "1.9"]
[White "Cezar, Ricardo De Almeida"]
[Black "Lima, Darcy"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1735"]
[BlackElo "2507"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,56,3,6,-10,1,6,0,7,7,0,8,-1,0,2,0,0,0,-16,-12,-19,-8,-19,-17,-49,-23,-41,-43,-81,-79,-102,-99,-78,-37,-49,-33,-39,-23,-53,-42,-76,-62,-60,-63,-100,-112,-202,-189,-317,-305]} 1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Nf3 d6 5. h3 O-O 6. Bh2 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems.} Nbd7 {6...b6 is becoming the main line.} 7. Be2 a6 {[#]} 8. c4 $146 {The position is equal.} ({Predecessor:} 8. a4 Qe8 9. O-O e5 10. c4 Qe7 11. Nc3 c6 12. Qb3 Ne8 13. Rfd1 Kh8 14. a5 f5 15. dxe5 dxe5 {0-1 (46) Sillye,K (2195)-Orso,M (2410) Budapest 1996}) 8... b6 9. Nc3 Bb7 10. O-O Ne4 11. Nxe4 Bxe4 12. Nd2 Bb7 13. Bf3 Bxf3 14. Nxf3 b5 15. cxb5 axb5 16. Qe2 Qb8 17. Rfc1 Qb7 18. Nd2 c5 19. Nb3 {[%cal Rd4c5]} cxd4 20. Nxd4 Bxd4 (20... b4 $17) 21. exd4 $15 Nf6 {[%cal Bd7f6,Bf6d5,Bd5c3,Bc3e2][%mdl 32]} 22. Bf4 Ra4 23. Be3 Rfa8 24. Qc2 Nd5 {Black is more active.} 25. b3 Ra3 $40 {[%mdl 128] White needs to defend precisely.} 26. Qd2 b4 27. Qc2 (27. Rcb1 $17 {might work better.}) 27... Nc3 $19 {[%cal Ra3a2]} 28. Bd2 (28. Qd3 $142) 28... Ne2+ {Weighted Error Value: White=0.25 (precise) /Black=0.05 (flawless)} ({Worse is} 28... Nxa2 29. Re1 $17) (28... Rxa2 29. Rxa2 Rxa2 30. Qd3 $17) 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "1.10"]
[White "Barbosa, Evandro Amorim"]
[Black "Esteche, Caina Rinaldi"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2487"]
[BlackElo "1735"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,73,18,72,64,60,79,125,118,125,111,112,107,112,117,129,129,125,125,125,114,135,76,77,75,83,81,83,76,218,212,226,160,326,315,352,349,333,322,341,341,338,335,411,397,404,430,405,416,425,408,414,400,434,425,420,398,359,311,727,698,810,821,781,734,1520,1310]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. Re1 e5 (5... a6 $11 {keeps the balance.} 6. Bxc6 Nxc6) 6. c3 $16 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} Ng6 7. d4 {[#]} Qc7 $146 (7... cxd4 $142 8. cxd4 exd4) ({Predecessor:} 7... cxd4 8. cxd4 exd4 9. Nxd4 Bc5 10. Be3 Bxd4 11. Bxd4 O-O 12. Bc3 Nf4 13. Qg4 Ne6 {1-0 (31) Asgarova,T (1935)-Ammar,S (1573) Al Ain 2015}) 8. Be3 {White is more active. White is better.} a6 9. Bxc6 dxc6 10. dxc5 Bg4 11. h3 Rd8 12. Nbd2 Be6 13. Qe2 Be7 14. Nc4 O-O 15. Ng5 (15. b4 $142) 15... Nf4 16. Bxf4 exf4 17. Nxe6 fxe6 18. Qh5 Rf6 {This costs Black the game.} (18... g6 $16 19. Qg4 Bxc5) 19. Rad1 $18 g6 20. Qe5 Rxd1 $2 {[#]} (20... Qxe5 $16 21. Nxe5 (21. Rxd8+ Bxd8 22. Nxe5 Bc7 $16) 21... Rff8) 21. Rxd1 ({Inferior is} 21. Qxc7 Rxe1+ 22. Kh2 Bxc5 23. Qc8+ (23. Qxb7 $2 Bxf2 24. Qc8+ Kg7 $19) 23... Kg7 24. Qc7+ (24. Qxb7+ $2 Rf7 $19) 24... Kg8 25. Qc8+ (25. Qxb7 $2 Bxf2 26. Qc8+ Kg7 $19) 25... Kg7 26. Qc7+ (26. Qxb7+ $2 Rf7 $19) 26... Kg8 $11) 21... Bd8 22. Qxc7 Bxc7 {[%mdl 4096] Endgame KRB-KRN} 23. Rd7 Rf7 24. Rxf7 Kxf7 {KB-KN} 25. e5 g5 26. Nd6+ Kg6 27. Kf1 b6 28. cxb6 Bxb6 29. Ke2 Kg7 30. b4 Kf8 31. Ne4 h6 32. Kd3 Kf7 33. c4 {[%cal Bc3c4,Bc4c5][%mdl 32]} Kg6 $2 {[#]} (33... Kf8 34. a4 Ke7) 34. c5 {White is clearly winning.} Bc7 35. Nd6 h5 36. Ke4 a5 37. a3 {Weighted Error Value: White=0.06 (flawless) /Black=0.33} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "2.1"]
[White "Pichot, Alan"]
[Black "Ferreira, Thales Bond Dias"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "2625"]
[BlackElo "1970"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,87,20,22,19,13,16,18,14,30,31,22,27,41,33,26,31,34,23,38,16,17,16,19,15,18,18,29,23,23,31,25,34,50,50,43,33,29,20,37,29,43,44,52,52,52,45,80,31,76,77,86,77,81,55,77,77,67,60,86,39,92,77,89,78,103,105,220,216,441,379,538,530,531,529,525,516,493,426,1928,1695]} 1. c4 c5 2. Nf3 Nc6 3. Nc3 e5 4. e3 Nf6 5. d4 exd4 6. exd4 {Hoping for d5. A34: Symmetrical English: 2 Nc3, lines with ...d5.} cxd4 7. Nxd4 d5 8. Be2 {The position is equal.} Bb4 9. O-O {cxd5 is the strong threat.} O-O 10. Nxd5 Nxd5 11. Nxc6 bxc6 12. cxd5 cxd5 13. Be3 Be6 14. Bf3 {[#]} Bd6 $146 ({Predecessor:} 14... Qd7 15. Qd4 Be7 16. Rfd1 Rfd8 17. Qd2 Rac8 18. Bd4 Bc5 19. Rac1 Bxd4 20. Qxd4 h6 {½-½ (54) Polster,C (2279)-Svane,F (2360) Wuerzburg 2019}) 15. Qd2 Be5 16. Rad1 Qb8 17. g3 ({Reject} 17. Bxd5 Rd8 18. Qa5 Bxh2+ 19. Kh1 Qe5 $17) 17... Qxb2 18. Qxb2 Bxb2 19. Bxd5 Bxd5 20. Rxd5 a6 21. Rb1 Bf6 22. Ra5 Rfc8 23. Rb7 h6 24. h4 Re8 25. Kg2 Re5 26. Rxe5 Bxe5 $14 {[%mdl 4096] Endgame KRB-KRB} 27. Kf3 a5 28. Ke4 ({White should try} 28. Rb5 $16 Bc3 29. a4) 28... Bc3 (28... Bd6 $14) 29. a3 $16 Rd8 30. Rb3 Rc8 31. Kd5 Be1 32. Rb1 Bc3 33. Bc5 h5 34. Kc4 (34. Rc1 $16 Bf6 35. Rb1) 34... g6 35. Rd1 Kg7 36. Rd5 ({Don't play} 36. Kxc3 $6 Rxc5+ 37. Kb3 Kf6 $11) 36... Be1 {[#] Threatens to win with ...Bxf2.} 37. Kd3 $1 Rb8 (37... Kh7 $16) 38. Bd4+ $18 Kf8 $2 (38... f6 39. Rd7+ Kg8) 39. Re5 Rb3+ (39... Bb4 $142 40. axb4 axb4) 40. Kc2 {White is clearly winning.} Bxf2 41. Bxf2 Rf3 42. Bc5+ Kg8 43. Re3 Rxe3 (43... Rf5 $142 44. Re8+ Kg7) 44. Bxe3 {Weighted Error Value: White=0.07 (flawless) /Black=0.25 (precise)} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "2.2"]
[White "Pontes, Israel Fillip da Sil"]
[Black "Delgado Ramirez, Neuris"]
[Result "0-1"]
[ECO "B56"]
[WhiteElo "1967"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,70,4,-57,-42,-62,-59,-78,-67,-66,-63,-68,-61,-70,-56,-59,-43,-70,-49,-67,-70,-67,-57,-90,-84,-131,-82,-196,-199,-203,-184,-170,-184,-277,-272,-335,-324,-329,-333,-304,-281,-289,-281,-327,-329,-330,-329,-1079,-1058,-1518,-1518,-29991,-1446,-1451,-1448,-1335,-1287,-29993,-29992]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be3 Ng4 7. Nxc6 bxc6 8. Qd2 ({Better is} 8. Bc1 $11) 8... Nxe3 $15 {B56: Classical Sicilian: Unusual Lines.} 9. Qxe3 g6 10. Bc4 Bg7 {Black is better.} 11. O-O O-O 12. Rab1 Qa5 13. Ne2 Rb8 14. c3 {[#]} Ba6 $146 ({Predecessor:} 14... e6 15. Nd4 Qc5 16. Bb3 Ba6 17. Rfe1 Qb6 18. h3 d5 19. exd5 cxd5 20. Rbd1 Rfc8 {0-1 (61) Pasztor,L (1892)-Puskar,J (2034) Slovakia 2014}) 15. Qd3 Bb7 16. Rfd1 d5 17. Bb3 e6 18. Qf3 {Black continues to play with concentration.} Rfd8 19. Rd2 (19. exd5 $142 cxd5 20. Qe3) 19... Qc7 ({Black should play} 19... c5 $1 {...c4 is the strong threat.} 20. exd5 exd5) 20. Rbd1 (20. exd5 $17 {is a better defense.} exd5 21. Nf4) 20... Bh6 $1 $19 21. Rd3 c5 {White must now prevent ...c4.} 22. c4 {[%cal Rc4d5]} dxe4 23. Rxd8+ (23. Qg3 $142 Qb6 24. Rd6) 23... Rxd8 24. Qg3 Rxd1+ 25. Bxd1 Qd8 {[%cal Rd8d1]} 26. Qb3 Bc6 {[%cal Oe4e3]} 27. Ng3 Qd4 28. Nf1 Bc1 29. Qb8+ Kg7 30. Bb3 (30. Qb3) 30... e3 31. fxe3 Bxe3+ 32. Kh1 {[#]} Bxg2+ $1 {[%mdl 512]} 33. Kxg2 {[#]} Qe4+ $1 ({Not} 33... Qg4+ 34. Ng3 Bf4 35. Qb7 $11) 34. Kg3 {[#]} Bd4 $1 {( -> ...g5)} 35. Qd8 Qd3+ {Weighted Error Value: White=0.94/Black=0.28 (precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "2.3"]
[White "Bachmann, Axel"]
[Black "Crespo Ruiz, Manuel Maria"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2594"]
[BlackElo "1948"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,81,28,25,34,64,69,77,41,50,44,47,39,71,29,84,17,22,0,6,0,15,20,18,12,31,12,16,11,24,0,9,18,26,0,21,0,0,0,0,0,0,0,129,111,127,119,130,118,129,131,153,160,166,168,158,158,387,421,414,389,406,405,385,291,546,536,821,815,744,737,739,725,1204,1178]} 1. g3 Nf6 2. Bg2 d5 3. Nf3 c5 4. c4 g6 5. cxd5 Nxd5 6. Qa4+ {A30: Symmetrical English: Double Fianchetto and Hedgehog.} Nd7 7. Nc3 N5b6 {[#]} 8. Qd1 $146 {White is much more active. White is better.} ({Predecessor:} 8. Qc2 Bg7 9. a4 a6 10. a5 Nc4 11. Qa4 Nd6 12. d3 O-O 13. O-O Nf5 14. Ne4 {1-0 (22) Zaragatski,I (2499)-Sadkowsky,D (2260) Belgium 2014}) 8... Bg7 9. O-O O-O 10. d3 Nf6 11. Be3 (11. Qc2 $16) 11... Nfd5 (11... c4 $11 {keeps the balance.}) 12. Bd2 (12. Bxc5 $16 Nxc3 13. bxc3) 12... Bd7 $11 13. Qc1 Rc8 14. Bh6 e6 15. Bxg7 Kxg7 16. b3 Qe7 17. Ne4 e5 18. Qb2 f6 19. Rac1 Rc7 20. a3 Be6 21. Ned2 Nd7 22. Rc2 (22. e3 $5 {[%cal Rd3d4]}) 22... Rfc8 23. Rfc1 b5 24. e4 N5b6 {[%cal Bd5b6,Bb6a4,Ba4b2][%mdl 32]} 25. d4 $1 {[%cal Bd3d4,Bd4d5][%mdl 32]} Qd6 (25... exd4 $11 26. Nxd4 Ne5 27. Nxe6+ (27. Nxb5 Nd3 $11) 27... Qxe6) 26. d5 $36 {[%mdl 2048] White has strong initiative.} Bf7 27. Bf1 a6 28. a4 $1 bxa4 29. bxa4 {Hoping for a5.} ({Don't play} 29. Bxa6 $6 Rb8 $14) 29... Nxa4 {[#]} 30. Nc4 {[%mdl 512]} Nxb2 31. Nxd6 {[%mdl 64] Discovered Attack} Rb8 32. Bxa6 {And now Nb5 would win.} Rb6 {Loses the game.} (32... c4 $16 33. Bxc4 (33. Nb5 Rc5 $18) 33... Rb6) 33. Nb5 $18 Ra7 34. Nxa7 Rxa6 35. Rxb2 Rxa7 36. Rcb1 Ra3 $2 {[#]} (36... c4 37. Rc2 f5) 37. Rb7 $1 {White is clearly winning.} Nf8 (37... Be8 38. Nd2) 38. Nd2 Kg8 39. Nc4 Ra6 40. Re7 f5 41. Nxe5 {Weighted Error Value: White=0.13 (very precise) /Black=0.30} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "2.4"]
[White "Fontoura, Rogerio Lemos"]
[Black "Supi, Luis Paulo"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "1965"]
[BlackElo "2581"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,68,17,0,0,0,0,0,-1,-4,0,-3,0,-15,6,-71,-69,-81,-81,-80,-70,-77,-37,-117,-100,-147,-135,-165,-169,-308,-314,-313,-308,-310,-306,-302,-285,-297,-293,-328,-282,-364,-372,-627,-626,-643,-383,-558,-570,-570,-570,-553,-548]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. Bf4 d6 6. e3 b6 7. Be2 Bb7 8. O-O Nbd7 9. h3 Re8 10. Bh2 Ne4 {E61: King's Indian: Early deviations for White, including Smyslov System.} 11. Nxe4 Bxe4 12. Nd2 Bb7 {The position is equal.} 13. Bf3 Bxf3 14. Nxf3 c5 {[#]} 15. Qd2 $146 ({Predecessor:} 15. Qe2 Rc8 16. Rac1 cxd4 17. Nxd4 Bxd4 18. exd4 e5 19. d5 f5 20. b4 Rc7 21. a4 {1-0 (39) Fuentes Inzunza,L (1840)-Molina,J (1883) Baku 2016}) 15... Qc7 16. d5 (16. Rac1 $11 {keeps the balance.}) 16... b5 $17 17. cxb5 a6 18. b6 Qxb6 19. Rab1 Rab8 {[%cal Rg7b2]} 20. Rfc1 {Black continues to play with concentration.} (20. Qc2 $15) 20... Nf6 (20... Bxb2 $2 21. Rc2 $18) 21. Rc4 {[#]} ({Better is} 21. Re1) 21... Qb5 $1 22. Rbc1 Qxb2 23. R1c2 (23. e4 $142) 23... Qa1+ $19 24. Rc1 {[#]} Rb1 25. Rxb1 Qxb1+ 26. Rc1 Qb7 27. Qc2 Qxd5 ({Don't blunder} 27... Nxd5 $2 28. e4 Nb4 29. Rb1 $19) 28. Rb1 Qe4 29. Qc1 Nd5 30. Nd2 $2 (30. Bg3) 30... Qd3 {And now ...Nc3 would win.} 31. Rb3 Qe2 {[%cal Oc5c4] ...c4! is the strong threat.} 32. Bg3 (32. e4 $142 Nc3 33. Bf4 Nxe4 34. Nxe4 Qxe4 35. Bg5) 32... c4 {Black is clearly winning.} 33. Qxc4 Qxd2 34. Qxa6 Nc3 {Weighted Error Value: White=0.44/Black=0.17 (very precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "2.5"]
[White "Fier, Alexandr"]
[Black "Ikejiri, Daniel Yoshito"]
[Result "1-0"]
[ECO "B54"]
[WhiteElo "2572"]
[BlackElo "1961"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,75,43,50,47,52,52,46,56,51,94,67,95,80,110,125,116,108,150,153,135,132,141,139,132,130,125,125,139,124,157,154,148,152,153,153,150,153,150,150,170,135,181,171,333,329,333,332,324,331,330,314,357,208,194,204,186,170,264,257,276,256,290,252]} 1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Bg5 e5 7. Nf5 Bxf5 8. exf5 Be7 {B54: Sicilian: 2...d6 3 d4 cxd4 4 Nxd4, Unusual Lines .} 9. Bxf6 Bxf6 10. Nd5 O-O {White is slightly better.} 11. c3 a6 (11... e4 $14) 12. Bc4 b5 13. Bb3 {[#]} Na5 $146 ({Predecessor:} 13... a5 14. O-O Rb8 15. Qf3 Na7 16. Rad1 Nc8 17. Rfe1 Nb6 18. Rd3 Re8 19. Qh5 a4 {1-0 (34) Acsinte,M (2095)-Tiron,L (1913) Calimanesti 2014}) 14. O-O Rc8 15. a4 Nc4 (15... Nxb3 $142 16. Qxb3 Rc5) 16. axb5 $16 axb5 17. Qe2 Rc5 18. Rfd1 Nb6 19. Ra6 Nxd5 20. Bxd5 Qc8 21. Rxd6 {White is much more active.} Qxf5 22. Be4 Qg5 23. g3 h5 24. h4 Qg4 25. Bf3 $36 {[%mdl 2048] Black is under strong pressure.} Qc4 26. Qe3 Rcc8 27. Bxh5 Qc5 (27... b4 $16) 28. Qe4 {[%cal Od6f6]} Rfd8 $2 (28... Rcd8 29. Rd7 Rxd7 30. Rxd7 Qc4 31. Qxc4 bxc4) 29. Rd7 $18 Rxd7 30. Rxd7 Rf8 31. Qb7 Qc4 32. Bf3 {[%cal Bh5f3,Bf3e4,Be4d5,Bd5b7][%mdl 32] [#] Prevents e4. aiming for Bd5.} e4 33. Qxe4 (33. Bxe4 $142 Re8 34. Bd5 Re1+ 35. Kh2) 33... Qxe4 34. Bxe4 b4 35. cxb4 Rb8 (35... Rd8 {was necessary.} 36. Rc7 Rd4) 36. Bd5 {White has a decisive advantage.} Bxb2 37. Rxf7 {[#] Strongly threatening Rb7+.} Kh8 38. Bb7 {Black got outplayed after the opening.  Weighted Error Value: White=0.07 (flawless) /Black=0.21 (precise)} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "2.6"]
[White "Bassani, Jaison Jose"]
[Black "Mekhitarian, Krikor Sevag"]
[Result "0-1"]
[ECO "B24"]
[WhiteElo "1997"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,90,4,11,8,25,4,11,12,29,20,22,19,31,-7,68,2,8,0,44,-72,-12,-19,-3,-10,-10,-19,-20,-10,-18,-27,-10,-57,-62,-53,-66,-53,-63,-76,-76,-64,-56,-54,-53,-154,-154,-154,-154,-154,-154,-155,-154,-287,-285,-306,-295,-615,-614,-620,-564,-588,-407,-399,-384,-687,-676,-680,-688,-694,-684,-668,-649,-643,-639,-753,-747,-716,-696,-803,-796,-771,-770,-1112,-1006]} 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Rb8 5. d3 b5 6. a3 {[%cal Ba2a3,Ba3a4][%mdl 32] B24: Closed Sicilian: 3 g3 sidelines.} a5 {[#]} 7. a4 $146 ({Predecessor:} 7. f4 b4 8. axb4 axb4 9. Nce2 Bg7 10. Nf3 d6 11. O-O e6 12. h3 Nge7 13. g4 {1-0 (75) Flores Medina,A-Juma Moreno,J (1104) Chess.com INT 2020}) 7... b4 8. Nb5 {The position is equal.} Ba6 9. c4 bxc3 10. bxc3 Bg7 11. Ne2 Nf6 (11... Bxb5 $11 12. axb5 Rxb5) 12. d4 ({Better is} 12. O-O $14) 12... O-O 13. Rb1 Ne8 (13... cxd4 $11 {is more appropriate.} 14. cxd4 Ne8) 14. Be3 (14. Bf4 $14 {keeps the upper hand.}) 14... Nc7 (14... Nd6 $17 {[%cal Rd6b5]} 15. Nxd6 exd6) 15. c4 $1 $11 cxd4 16. Nexd4 Nxd4 17. Bxd4 Bxd4 18. Qxd4 Ne6 19. Qe3 Qc8 20. Rc1 (20. Qc3 $11 {was preferrable.}) 20... Qc5 $15 21. Qd2 {[%csl LRa5,LRd7]} Qb4 22. Qxb4 axb4 23. Kd2 Rfc8 24. Rhd1 Nc5 {Hoping for ...Nb3+.} 25. Rb1 {Inhibits Nb3+.} b3 26. Rdc1 {[#] White is on the road to losing.} (26. Ra1 $1 $15) 26... Bb7 $1 $17 27. f3 Ra8 28. Nc3 Bc6 {Black is more active.} 29. Bh3 Kf8 30. Nd5 (30. Rb2 $17) 30... Rxa4 $19 {aiming for ...Ra2+.} 31. Rb2 Rca8 {[#] ...Ra2 is the strong threat.} 32. Nb6 $2 (32. Nc3 Rxc4 33. Bf1 Rd4+ 34. Ke3) 32... Ra2 33. Rcb1 Rxb2+ 34. Rxb2 Ra2 35. Kc3 Ra6 36. Kd4 $2 (36. Nxd7+ Bxd7 37. Bxd7 Nxd7 38. Rxb3) 36... d6 {Black is clearly winning.} ({Worse is} 36... Rxb6 37. Kxc5 Rb7 38. Kd4 $15) 37. Nd5 Ra2 38. Rb1 Rxh2 39. Bf1 e5+ 40. Ke3 Bxd5 41. cxd5 Rc2 42. Be2 b2 43. Bb5 h5 44. Bc6 Ke7 45. f4 Rc3+ {Weighted Error Value: White=0.50/Black=0.15 (very precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "2.7"]
[White "Cuenca Jimenez, Jose Fernando"]
[Black "Haraguchi, Diego Sashaki"]
[Result "1-0"]
[ECO "A33"]
[WhiteElo "2552"]
[BlackElo "1953"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,77,41,41,120,72,74,79,155,161,167,108,112,106,171,172,275,177,237,229,220,111,108,111,414,387,408,405,387,371,345,262,258,254,272,289,533,506,1053,1044,950,450,449,448,531,545,566,551,603,559,559,558,554,550,547,544,494,474]} 1. c4 Nf6 2. Nc3 c5 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. g3 a6 7. Bg2 Qc7 8. O-O Be7 9. b3 O-O 10. Bb2 d6 11. Rc1 Nxd4 12. Qxd4 Qc5 {[#] A33: Symmetrical English: 2 Nf3 Nf6 3 d4 cxd4 4 Nxd4 e6 5 Nc3 Nc6.} (12... Bd7 $14) 13. Qd3 $146 {White is more active.} (13. Na4 $142 Qh5 14. Nb6) ({Predecessor:} 13. Qxc5 dxc5 14. Na4 Rb8 15. Be5 Ra8 16. Nb6 Ra7 17. Bb8 Ra8 18. Nxa8 Bd7 19. Nb6 Rxb8 20. Nxd7 Nxd7 21. Rfd1 Ne5 22. e3 b5 23. cxb5 Rxb5 24. h3 g6 25. f4 {1-0 (25) Spata,G (2257)-Zito,A (1563) Lichess.org INT 2020}) 13... Qh5 14. Rfd1 Ng4 ({Better is} 14... Rb8) 15. h3 $16 Ne5 16. Qd2 (16. Qe3 $18) 16... Rd8 17. Na4 {Black must now prevent c5.} Nd7 {To avoid c5} (17... Nc6 $16) 18. Ba3 $18 Bf8 (18... Ne5 $142 19. Nb6 Rb8) 19. Qe3 Nf6 (19... Qe5 $142 20. Qd2 d5) 20. Nb6 Rb8 21. Nxc8 (21. g4 $18 Qg6 22. c5) 21... Rbxc8 $16 22. Bxb7 Qxh3 $2 {[%mdl 8192] A mistake that costs the game.} (22... Rb8 $16) 23. Bxc8 $18 {A strong pair of Bishops.} Ng4 {( -> ...Qh2+)} 24. Qf3 Qh2+ 25. Kf1 {aiming for Bb7.} Rxc8 26. Qg2 {Strongly threatening Qxh2.} Qh6 27. Rc2 Rd8 28. Rcd2 Be7 $2 (28... f5 29. Ke1 (29. Bxd6 Rxd6 30. Rxd6 Bxd6 $11) 29... Qf6 30. Bxd6 Rxd6) 29. Bxd6 {White is clearly winning.} Bg5 {[#]} (29... Bf8 $142 30. c5 Qg5) 30. Bf4 $1 Rf8 {[#]} 31. Bxg5 (31. Rd8 $142 $3 {[%mdl 512] White threatens Rxf8+ and mate.} g6 32. Bxg5 Qxg5 33. Qa8 Rxd8 34. Rxd8+ Kg7 35. Rg8+ Kh6 36. Qf8+ Kh5 37. Qxf7) 31... Qxg5 32. Kg1 f5 33. e3 {[%cal Be2e3,Be3f4][%mdl 32]} h5 34. c5 f4 35. exf4 Qxc5 36. Qe4 e5 37. Qd5+ Qxd5 38. Rxd5 exf4 39. Rd8 {Weighted Error Value: White=0.44/Black=0.64} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "2.8"]
[White "Lima, Vinicius Taishun"]
[Black "Hungaski, Robert"]
[Result "0-1"]
[ECO "C18"]
[WhiteElo "1952"]
[BlackElo "2521"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,86,33,-9,0,0,36,0,7,-20,0,0,25,0,2,0,0,0,0,-27,-29,-27,0,0,0,0,0,0,0,0,68,-26,-20,-20,-3,-18,-37,-44,14,-45,-48,-72,-50,-94,-93,-131,-62,-127,-58,-96,0,-122,-95,-113,-93,-93,-66,-114,-64,-155,-60,-370,-363,-979,-958,-773,-553,-533,-506,-1052,-1041,-1028,-985,-897,-647,-1657,-1485]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Nc6 7. h4 (7. Qg4 $14 Qa5 8. Bd2) 7... Qa5 {[%csl LRc3,LRd4] C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4.} 8. Bd2 Bd7 9. h5 (9. Qg4 $5 {[%cal Rg4g7]} Kf8 10. Nf3 $11) 9... O-O-O {[#] The position is equal.} 10. Be2 $146 ({Predecessor:} 10. Qg4 Nge7 11. Nf3 Qa4 12. Bd3 c4 13. Be2 Nf5 14. Ra2 f6 15. O-O fxe5 16. Nxe5 Nxe5 17. dxe5 {1-0 (47) Zilka,S (2608)-Vastrukhin,O (2376) Warsaw 2021}) 10... h6 11. Nf3 c4 12. Nh4 Nge7 13. O-O g5 14. hxg6 fxg6 15. g3 g5 16. Ng2 Be8 17. Bg4 Nf5 18. Bxf5 exf5 19. f4 Bd7 $1 20. Qe1 Be6 (20... Rdg8 $11) 21. Be3 (21. fxg5 $14 hxg5 22. Bxg5) 21... Rdg8 $11 22. Kf2 Rg6 23. Qd2 {[%cal Rf4g5]} Rhg8 24. Rh1 Kb8 (24... Nd8 $15) 25. Rh3 (25. Rh5 $1 $11) 25... Nd8 $15 26. Rhh1 Bc8 {[%cal Be6c8,Bc8d7,Bd7a4][%mdl 32]} 27. Rhg1 (27. Ke2 $15) 27... Ne6 $17 28. Qe1 {[#]} Ka8 (28... R6g7 $1 $17) 29. Qd2 (29. Ke2 $15) 29... Qc7 (29... gxf4 $17 30. Bxf4 (30. Nxf4 $2 Ng5 $19) 30... h5) 30. Qe2 Qa5 31. Qd2 $1 Bd7 32. Qe1 Ba4 {Black is more active.} 33. Qd2 Qd8 34. Qe2 (34. Raf1 $15 {is superior.}) 34... a5 ({Black should try} 34... R6g7 $17 35. Rab1 Qe7) 35. Qd2 {[#]} (35. Rac1 $15) 35... R8g7 ({Black should play} 35... gxf4 $1 $17 36. Bxf4 (36. Nxf4 $2 Ng5 $19) 36... Rg4) 36. Ra2 $2 {[%mdl 8192] Now White is beyond hope.} (36. Raf1 $1 $15) 36... Qg8 $19 {...gxf4 is the strong threat.} 37. Ne1 $2 (37. Raa1 gxf4 38. Bxf4 (38. Nxf4 $2 Rxg3 39. Ne2 Rg2+ 40. Kf1 Rh2 $19)) 37... gxf4 {Black is clearly winning.} 38. Bxf4 Nxf4 39. Qxf4 Rg4 40. Qd2 (40. Qxh6 $142 R7g6 41. Qh5) 40... f4 {Strongly threatening ...Rf7.} 41. Nf3 Bd7 {[%cal Rf4g3]} 42. Raa1 Bf5 43. gxf4 Rg2+ {Weighted Error Value: White=0.66/Black=0.32} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "2.9"]
[White "Lima, Darcy"]
[Black "Frattini, Beatriz Maria"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "2507"]
[BlackElo "1948"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,55,0,0,39,42,60,37,93,93,76,84,79,83,82,85,90,58,136,139,155,140,159,149,158,160,219,216,210,170,263,263,276,269,308,297,429,416,425,434,413,377,406,383]} 1. c4 {Ribli,Z} c5 2. Nc3 Nf6 {[%cal Bg8f6,Bf6d5,Bd5c7][%mdl 32]} 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc7 6. Qb3 Nc6 7. Bxc6+ bxc6 8. Qa4 Qd6 {A34: Symmetrical English: 2 Nc3, lines with ...d5.} 9. d3 e5 10. Nf3 {[%cal Of3e5] [#]} Bh3 $146 {[#]} (10... f6 $14) ({Predecessor:} 10... f6 11. O-O Bh3 12. Rd1 Ne6 13. b3 Be7 14. Ba3 f5 15. Qc4 Rd8 16. Rac1 h5 {0-1 (45) Dearing,E (2376)-Kovacevic,A (2556) Mallorca 2004 CBM 104 [Ribli,Z]}) 11. Nxe5 $1 Qxe5 12. Bf4 Qe6 {Hoping for ...Nd5.} 13. Bxc7 Be7 14. O-O-O O-O {[%cal Oa7a5]} 15. Rhe1 Bg5+ ({Black should try} 15... a5 $14) 16. Kb1 $16 Qd7 {[#]} 17. Ne4 $1 {[%csl LRc5,LRg5]} Be7 (17... Qxc7 18. Nxg5) 18. Bf4 {[%cal Bc7f4,Bf4e3,Be3c5][%mdl 32] White is much more active. Black has bad knights.} Be6 19. Be3 Qd5 (19... Rfb8 $16 {was necessary.} 20. Bxc5 (20. Nxc5 Bxc5 21. Bxc5 Qd5 $16) 20... Bd8) 20. Rc1 $18 Rfb8 21. Bxc5 f5 (21... Bd8 $142 22. b3 (22. Bxa7 $2 Rb7 $19) 22... f5) 22. Bxe7 fxe4 23. dxe4 Qe5 {[%csl Gb8][%cal Re5b2]} 24. Ba3 Rb5 (24... Rb6 $142 25. Red1 Qb5 26. Qxb5 cxb5) 25. f4 Qf6 26. e5 Qf7 27. Bd6 Bd7 28. e4 {Black did not feel at home in the position after the opening.  Weighted Error Value: White=0.07 (flawless) /Black=0.32} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "3.1"]
[White "Leitao, Nicolau"]
[Black "Pichot, Alan"]
[Result "0-1"]
[ECO "E47"]
[WhiteElo "2109"]
[BlackElo "2625"]
[Annotator "TA"]
[PlyCount "44"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,44,8,24,21,3,0,-9,0,-15,-12,-32,-26,-12,-10,-106,-44,-243,-260,-296,-285,-303,-298,-302,-291,-293,-269,-355,-348,-330,-285,-505,-506]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nge2 b6 7. O-O Bb7 8. a3 Bd6 $1 {The main line 8...Bd6 scores better than 8...Be7. E47: Nimzo-Indian: Rubinstein: 5 Bd3 without ...d5.} 9. Ng3 Re8 $5 {[%mdl 4] Leaves trodden paths.} 10. cxd5 exd5 {The position is equal.} 11. Bd2 {[#]} c5 $146 ({Predecessor:} 11... a6 12. Rc1 c5 13. dxc5 bxc5 14. Na4 Nbd7 15. b4 c4 16. Bc2 Ne5 17. Bc3 Nfg4 {1-0 (36) Watanabe,A (2284)-Efimov,I (2409) Chess.com INT 2020}) 12. Rc1 Nc6 13. dxc5 bxc5 14. Qa4 (14. Bb5 $11 {keeps the balance.}) 14... d4 ({Black should try} 14... Bxg3 $17 15. hxg3 Ne5) 15. Nce4 $2 {[#]} (15. exd4 $1 $15 Nxd4 16. Rce1) 15... Nxe4 $1 $19 16. Bxe4 Bxg3 17. Bxc6 {[#]} Bxh2+ {[%mdl 512]} 18. Kxh2 Qd6+ 19. Kg1 Bxc6 20. Qc2 dxe3 ({Not} 20... Qd5 21. e4 Rxe4 22. Qxc5 $17) 21. fxe3 Be4 22. Qxc5 (22. Qd1) 22... Qxd2 {White did not feel at home in the position after the opening.  Weighted Error Value: White=0.74/Black=0.06 (flawless)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "3.2"]
[White "Delgado Ramirez, Neuris"]
[Black "Dias, Anderson Tatsch"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2614"]
[BlackElo "2102"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,39,29,37,28,50,48,48,31,57,46,80,74,80,76,69,71,98,74,83,91,92,91,91,105,160,168,161,167,158,156,166,127]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Qb6 5. c3 a6 6. Nd2 {B40: Sicilian: 2...e6, Unusual lines.} d6 7. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Nf6 8. Bd3 {White is slightly better.} Be7 9. O-O (9. Nc4 {is more complex.} Qc7 10. a5 Nbd7 11. O-O O-O 12. Re1) 9... Nc6 {[#]} 10. Nxc6 $146 ({Predecessor:} 10. Nc4 Qc7 11. Be3 Ne5 12. Nxe5 dxe5 13. Nb3 b6 14. a5 b5 15. Qf3 O-O 16. Rfe1 {½-½ (45) Babrauskas,D (2019)-Bucinskas,V (2297) Lithuania 2019}) 10... bxc6 11. Nc4 Qc7 12. a5 Nd7 13. Bf4 (13. Qg4 {is interesting.} O-O 14. Bh6 Bf6 15. f4 Rb8 16. Rf2) 13... O-O 14. Bc2 {[%cal Rf4d6] White is more active.} e5 15. Be3 Bb7 16. Qd3 {[%cal Oc4d6]} Nc5 (16... Rfd8 $142) 17. Bxc5 $16 {White is clearly better.} dxc5 18. Qg3 Bf6 19. Qe3 Be7 20. Bd3 {Weighted Error Value: White=0.04 (flawless) /Black=0.13 (very precise)} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "3.3"]
[White "Souza Neves, Andrey M."]
[Black "Bachmann, Axel"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2107"]
[BlackElo "2594"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,60,20,21,35,3,6,10,2,0,5,9,24,-21,-8,0,26,24,30,0,22,-24,-22,-29,-10,-3,15,0,0,-22,4,-41,-47,-114,-97,-239,-240,-237,-225,-202,-220,-656,-657,-624,-346,-661,-656,-641,-627,-984,-490,-1907,-1822]} 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 {[%cal Oe6e5] E11: Bogo-Indian.} 7. b4 a5 8. b5 e5 {The position is equal.} 9. Be2 exd4 10. Nxd4 Nfd7 11. O-O (11. Qc2 {is more appropriate.}) 11... Bf6 $11 12. Bb2 Nc5 (12... c5 $5 {[%cal Rc5d4]} 13. bxc6 Nxc6 14. Nxc6 bxc6 15. Bxf6 Qxf6 $11) 13. Qc2 Re8 {[#]} 14. f3 $146 ({Predecessor:} 14. Rfe1 Nbd7 15. Bf1 Nf8 16. h3 Bd7 17. Rad1 Ng6 18. N2b3 Nxb3 19. Qxb3 b6 20. Nf3 Bxb2 21. Qxb2 Qe7 22. Re3 Rad8 23. Rde1 Ne5 {½-½ (23) Bulski,K (2549)-Antoniewski,R (2557) Czech Republic 2012}) 14... a4 15. Rfd1 (15. f4 {deserves consideration.}) 15... Be5 {[#] And now ...Qf6 would win.} 16. Nf1 Qf6 {[%cal Oc5b3] Strongly threatening ...Nb3!} 17. Rab1 Ne6 {[%cal Re6d4]} 18. Nxe6 Bxe6 19. b6 cxb6 20. Rxd6 Nc6 $15 {...Nd4 is the strong threat.} 21. Bxe5 (21. Qd2 $15) 21... Qxe5 $17 22. Rbd1 {This move loses the game for White.} (22. Qd2 $17 {keeps fighting.}) 22... Qc5+ $19 23. Kh1 Qxa3 24. f4 Red8 25. R6d5 {[#]} (25. Rxd8+ Rxd8 26. f5) 25... Bxd5 26. cxd5 Qb3 27. Qc1 (27. Qxb3 axb3 28. dxc6 Rxd1 29. Bxd1) 27... Nb4 {Threatens to win with ...Rdc8. Black is clearly winning.} 28. f5 a3 29. e5 Qb2 (29... a2 $142 30. f6 h6 31. fxg7 Kxg7) 30. Qc7 (30. Qxb2 $142 axb2 31. Rb1) 30... Qxe2 {Weighted Error Value: White=0.93/Black=0.38} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "3.4"]
[White "Supi, Luis Paulo"]
[Black "Pereira, Geanfrancesco"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "2581"]
[BlackElo "2100"]
[Annotator "TA"]
[PlyCount "38"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,25,15,26,17,29,17,31,21,31,16,27,23,29,8,24,24,44,50]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 a6 5. Be2 Nc6 6. Qe3 {B53: Sicilian: 2...d6: Lines with Qxd4.} g6 7. O-O Bg7 8. h3 {8.Rd1 gains popularity.} Nf6 9. c4 {To avoid d5} O-O 10. Nc3 Nd7 11. Rd1 Rb8 12. Rb1 Qa5 13. Bd2 {[#]  Weighted Error Value: White=0.04 (flawless) /Black=0.10 (very precise)} {Predecessor:} Qc5 $146 14. Qf4 Nde5 15. Qh4 Nxf3+ 16. Bxf3 Bf6 17. Qg3 Qxc4 18. Nd5 Be5 19. Qh4 Qxa2 {0-1 (71) Doe,J (2626)-Durarbayli,V (2620) Chess.com INT 2018} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "3.5"]
[White "Damous, Felipe Soares"]
[Black "Fier, Alexandr"]
[Result "0-1"]
[ECO "A26"]
[WhiteElo "2101"]
[BlackElo "2572"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,72,18,20,11,12,27,10,43,12,14,2,30,0,0,0,11,0,-3,-23,0,0,0,0,0,0,0,0,0,0,0,0,0,0,49,0,31,22,44,27,132,113,255,241,244,0,0,0,0,-470,-466,-437,-443,-29984,-29985,-29992,-29993,-29993,-29994]} 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 d6 6. Nc3 Nc6 7. Rb1 e5 8. d3 Re8 9. b4 {[%cal Bb2b4,Bb4b5][%mdl 32]} Nd4 {A26: English Opening vs King's Indian with ...Nc6 and d3.} 10. Nxd4 exd4 {[#]} 11. Nd5 $146 ({Predecessor:} 11. Nb5 Nh5 12. e3 dxe3 13. Bxe3 c6 14. Nd4 Bd7 15. Qd2 Qc8 16. Rfe1 Bh3 17. Bh1 {1-0 (62) Erdogdu,M (2411)-Grigoriev,A (2107) Enez 2018}) 11... Nd7 {The position is equal.} 12. b5 {[%cal Oc1g5]} (12. Bg5 $5 Qxg5 13. Nxc7 $11) 12... Nc5 13. Bb2 Bf5 14. a4 a5 15. b6 cxb6 16. Ba3 Ra6 17. Re1 $1 Bd7 18. Bxc5 dxc5 19. Qb3 h5 20. Nxb6 Bc6 21. Nd5 Bh6 22. Rb2 h4 23. Reb1 Kg7 24. Bf3 Qd7 (24... Qd6 $11 {deserves consideration.}) 25. Qa3 (25. gxh4 Qh3 26. Bg2 Qxh4 $17) (25. e4 $1 $14) 25... Qd6 (25... Bxd5 $5 26. cxd5 (26. Bxd5 b6 $14) 26... Qh3 $16) 26. Rxb7 Bxb7 27. Rxb7 {Threatens to win with Nc7.} Rc6 {Inhibits Nc7.} (27... Rh8 $1 $11) 28. Qb3 {[%mdl 1024] White has strong compensation.} (28. gxh4 $6 Qd8 $11) 28... h3 (28... Rcc8 $16 {was called for.}) 29. Qb5 Rcc8 {[%cal Bc6c8,Bc8b8,Bb8b6][%mdl 32] [#]} 30. Rd7 $2 ({Don't play} 30. Qxa5 $6 Rb8 31. Rb5 Red8 $16) (30. Bg4 $1 $18 {[%cal Rg4c8]}) 30... Qe5 $11 {...Rb8 is the strong threat.} 31. Qb7 ({But not} 31. Qxa5 $2 Rb8 32. Qe1 Rb2 $19) 31... Rf8 $40 {[%mdl 128] And now ...Rb8 would win. Black attacks.} 32. Nb6 $2 {[%mdl 8192]} (32. Qb1 $1 $11 {and White stays safe.}) 32... Rb8 $19 33. Qc6 Qg5 {[%cal Rg5c1] Inhibits Bg4.} 34. e3 (34. Bg2 $19 Qc1+ 35. Bf1) 34... dxe3 {Black mates.} 35. fxe3 Qxe3+ 36. Kf1 {[#]} Rxb6 $1 {[%mdl 512] Weighted Error Value: White=0.50/Black=0.17 (very precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "3.6"]
[White "Mekhitarian, Krikor Sevag"]
[Black "Piccoli, Lucas Fonseca"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2562"]
[BlackElo "2065"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,71,23,33,28,38,33,56,60,60,60,58,60,57,60,162,156,177,167,231,223,222,177,204,198,256,282,278,260,260,258,252,239,258,246,370,379,367,372,365,368,360,367,391,389,556,543,652,635,641,626,791,763,720,757,735,546,1903,1937,1788,1729,1337,1285]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 g6 5. e5 Ng4 6. Bxc6 dxc6 7. h3 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} Nh6 8. Ne4 {[#]} Bg7 $146 ({Predecessor:} 8... b6 9. O-O Bg7 10. Qe2 O-O 11. a4 Nf5 12. c3 a5 13. d3 Qd7 14. Rd1 Rd8 {½-½ (71) Kribben,M (2652)-Moll,R (2630) ICCF email 2011}) 9. Nxc5 {White is slightly better.} Qd5 10. d4 b6 11. Nd3 {Pair of Knights!} Nf5 12. Nf4 Qa5+ ({Black should try} 12... Qe4+ $1 $14 13. Qe2 Qxe2+ 14. Nxe2 c5) 13. Bd2 $18 Qb5 {[#]} 14. a4 $1 $36 {[%mdl 2048] White is in control.} Qc4 (14... Qxb2 $2 15. Nd3 Qxa1 16. Qxa1 $18) (14... Qa6 $142 15. g4 Nh6) 15. b3 Qa6 16. c4 c5 17. d5 Nd4 (17... O-O $142 18. O-O Qb7) 18. Nxd4 cxd4 19. O-O Bxe5 20. Re1 Bd6 21. Bc1 Qa5 22. Nd3 {[%cal Ob3b4,Bf4d3,Bd3b4,Bb4c6][%mdl 32] b4! is the strong threat.} Bf5 {[#]} (22... O-O $142 23. Bb2 f6 24. Bxd4 Bf5) 23. Bd2 $1 Qa6 24. Bb4 {Black must now prevent Bxd6.} O-O 25. Bxd6 exd6 {[#]} 26. Nb4 {[%csl LRa6,LRd4]} Qa5 27. Nc6 Qc3 (27... Qc5 {keeps fighting.} 28. Ne7+ Kg7 29. Nxf5+ gxf5) 28. Ne7+ {White is clearly winning.} Kh8 29. Nxf5 gxf5 30. Rc1 {[%cal Ba1c1,Bc1e1,Be1e4][%mdl 32]} Qb2 31. Re2 Qa3 32. Qxd4+ f6 33. Rce1 {Threatening mate with Re7.} Qxb3 34. Re7 {White wants to mate with Qh4.} Qc2 35. Qh4 {[%csl Ge7][%cal Rh4h7]} f4 36. R1e4 {White took control after the opening.  Weighted Error Value: White=0.03 (flawless) /Black=0.46} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "3.7"]
[White "Volkmann, Andre Jordi"]
[Black "Cuenca Jimenez, Jose Fernando"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "2060"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,82,5,6,4,6,0,0,0,0,-7,-8,-18,8,-14,-31,-13,0,-38,-20,-26,-21,-16,-7,-18,-14,-35,-36,-35,5,-17,-14,-22,0,-9,48,-17,-4,-68,-69,-68,-58,-133,-116,-225,-221,-263,-133,-144,-149,-148,-145,-152,-146,-154,-160,-154,-96,-91,-80,-71,-47,-147,-144,-191,-182,-275,-270,-338,-331,-435,-456,-627,-625,-587,-582]} 1. Nf3 Nf6 2. b3 d5 3. Bb2 Bf5 4. e3 e6 5. c4 h6 6. Nc3 {A06: Réti Opening: 1 Nf3 d5.} c6 7. Be2 Nbd7 8. O-O {The position is equal.} Bd6 9. d4 O-O 10. a3 {[#]} Bh7 $146 ({Predecessor:} 10... a5 11. Bd3 Bxd3 12. Qxd3 Re8 13. e4 dxe4 14. Nxe4 Nxe4 15. Qxe4 Qc7 16. Rfe1 Rad8 {1-0 (28) Nabaty,T (2638)-Rustemov,A (2525) Chess.com INT 2021}) 11. b4 dxc4 12. Bxc4 e5 {[%cal Be6e5,Be5e4][%mdl 32]} 13. Ne2 {[%cal Rd4e5]} e4 14. Ne5 Qc7 {[%cal Rd6e5]} 15. Nxd7 $1 Nxd7 (15... Bxh2+ $2 16. Kh1 Nxd7 17. g3 $18) 16. g3 Nb6 17. Bb3 Rad8 18. Qc2 h5 19. Rac1 {[%cal Od4d5]} Qd7 20. d5 cxd5 21. Rfd1 Qf5 ({Better is} 21... Qg4 $11) 22. Qc3 ({White should play} 22. Bd4 $1 $14) 22... f6 $11 23. Nf4 (23. Qc2 $11) 23... Bxf4 $15 24. exf4 Kh8 {[%cal Oh5h4]} 25. Qd4 (25. Qe1 $15) 25... Qh3 26. Rc7 (26. Re1 $17 {is a better defense.}) 26... Bf5 $19 27. Qc5 Rde8 (27... Rfe8 $19 {aiming for ...Bg4.} 28. Qb5 Bg4) 28. Re1 {[#]} ({Wrong is} 28. Rxb7 $2 Bg4 29. Qb5 (29. Qc7 $2 Rg8 $19) 29... e3 30. fxe3 Rxe3 $19) 28... Bg4 $1 {( -> ...Bf3)} 29. Qb5 Rc8 $40 {[%mdl 128] White is in trouble.} ({Stronger than} 29... Bf3 30. Qf1 Qxf1+ 31. Kxf1 $15) 30. Rxc8 Rxc8 31. Qf1 Qxf1+ 32. Kxf1 Bd7 (32... a6 $142 33. Kg1 Nc4 34. Bxc4 dxc4 35. Rxe4 c3) 33. Bd4 $17 Ba4 34. Bd1 Bb5+ 35. Be2 (35. Kg2 $15) 35... Bxe2+ 36. Rxe2 {[%mdl 4096] Endgame KRB-KRN} (36. Kxe2 $17 Rc2+ 37. Kf1) 36... Rc4 $19 37. Rd2 (37. Bc5 $142) 37... Rc1+ 38. Kg2 Nc4 {[%csl LRa3,LRd2]} 39. Ra2 b6 {Black is clearly winning.} 40. Kh3 Rd1 41. Ba1 d4 {Weighted Error Value: White=0.33/Black=0.12 (very precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "3.8"]
[White "Hungaski, Robert"]
[Black "Calcado, Acyr Rogerio"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2521"]
[BlackElo "2085"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,52,18,-27,-11,-10,-16,-25,-17,-33,-6,-26,-19,-5,23,30,142,154,97,91,98,97,171,149,166,61,32,53,52,52,51,0,477,528,501,523,602,525,455,535,506,379,1070]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Nbd2 dxc4 6. Bg2 O-O 7. O-O (7. a3 {deserves consideration.} Bxd2+ 8. Qxd2) 7... b5 $1 $11 {E04: Open Catalan: 5 Nf3.} 8. a4 c6 9. Ne1 Nd5 {Black has an edge.} (9... Qxd4 10. Nc2 Qc5 11. axb5 $14) 10. Nc2 Be7 11. e4 Nf6 12. g4 {[#]} h6 $146 ({Predecessor:} 12... a5 13. g5 Ne8 14. e5 b4 15. Ne4 Nd7 16. Qh5 Bb7 17. Rd1 g6 18. Qg4 Kh8 {1-0 (32) Percze,J (2543)-Schueppen,H (2422) ICCF email 2012}) 13. f4 {Threatens to win with axb5.} (13. axb5 cxb5 14. e5 Nd5 $11) 13... Bb7 (13... bxa4 $11 14. g5 (14. Rxa4 Nfd7 $14) (14. Nxc4 Ba6 $11) 14... hxg5) 14. g5 $16 hxg5 15. fxg5 Nh7 {[%cal Oe6e5] [#]} 16. e5 $1 Nxg5 (16... b4 $16 {is a better defense.}) 17. axb5 $18 Qc7 18. b6 (18. h4 $18 Nh7 19. Qf3 (19. Nxc4 cxb5 20. Bxb7 Qxb7 $15)) 18... axb6 $14 19. Rxa8 Bxa8 20. Nxc4 Nd7 $1 {[#] aiming for ...c5.} 21. Qg4 (21. h4 $14 Nh7 22. Qg4) 21... Nh7 $2 {[%mdl 8192]} (21... c5 $1 $11 {and Black is okay.} 22. Bxg5 Bxg5 23. Qxg5 cxd4) 22. Bh6 $1 $18 {[%csl Gh6][%cal Rg4g7]} g6 23. Be4 {[%cal Of1f7] Strongly threatening Rxf7!} Nhf6 24. exf6 Nxf6 25. Qg2 {Threatening mate with Bxg6.} Nxe4 26. Qxe4 Bf6 $2 {Weighted Error Value: White=0.26 (precise) /Black=0.47} (26... c5 27. Qe5 Qxe5 28. Nxe5 Be4) 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "3.9"]
[White "Lorenzon, Eduardo Lucas"]
[Black "Lima, Darcy"]
[Result "0-1"]
[ECO "C15"]
[WhiteElo "2092"]
[BlackElo "2507"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,96,0,0,0,-16,-293,-296,-318,-330,-454,-322,-313,-315,-319,-316,-320,-304,-267,-250,-382,-382,-402,-385,-384,-387,-380,-344,-297,-312,-319,-279,-279,-279,-294,-287,-278,-253,-249,-249,-277,-270,-333,-325,-457,-454,-448,-422,-393,-358,-566,-543,-568,-542,-819,-789,-799,-770,-764,-811,-783,-732,-825,-818,-840,-859,-808,-841,-752,-778,-868,-860,-859,-799,-841,-841,-962,-731,-862,0,-794,-719,-3186,-5086,-2208,-2516,-4133,-1835]} 1. e4 {Finkel,A} e6 2. d4 d5 3. Nc3 Bb4 4. Qg4 Nf6 5. Qxg7 Rg8 6. Qh6 Rg6 7. Qe3 {Hoping for e5. C15: French: 3 Nc3 Bb4: Unusual White 4th moves.} (7. Bb5+ $2 c6 8. Qe3 cxb5 $19) 7... c5 {[%cal Bc7c5,Bc5d4,Bd4c3][%mdl 32] [#] aiming for ...Nc6.} 8. Nf3 $146 {[%mdl 8192]} ({Avoid the trap} 8. dxc5 $2 d4 9. Qd2 (9. Bb5+ $2 Nc6 $19) 9... dxc3 10. bxc3 Qxd2+ 11. Bxd2 Bxc5 $19) (8. Nge2 $11 {and White stays safe.}) ({Predecessor:} 8. Bd2 Nc6 9. Nge2 dxe4 10. Nxe4 cxd4 11. Nxf6+ Qxf6 12. Qd3 Bd7 13. Bxb4 Nxb4 14. Qd2 Nc6 {½-½ (79) Jobava,B (2596)-Dizdar,G (2525) Abu Dhabi 2003 CBM 097 [Finkel,A]}) 8... dxe4 $19 9. Ne5 {Black has a decisive advantage.} ({Much weaker is} 9. Bb5+ Nc6 10. Ne5 cxd4 $19) 9... cxd4 10. Qh3 Qa5 11. Nxg6 dxc3 12. b3 {[%cal Oh3h4]} fxg6 13. Qh4 Be7 ({Not} 13... Nbd7 $2 14. Be2 $19) 14. Bg5 Nbd7 {[%cal Bb8d7,Bd7e5,Be5f3][%mdl 32]} 15. g3 (15. Be2 $142) 15... e3 16. Bxe3 Qd5 {Inhibits Bg2.} 17. Rg1 Ne5 18. Be2 Nf3+ 19. Bxf3 Qxf3 20. Qf4 Qxf4 21. Bxf4 Nd5 22. Be5 Bd7 23. O-O-O b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 24. Rge1 {[%cal Od1d5]} Bc6 25. f4 b4 26. Bd4 Kf7 27. h4 (27. Be5 $142) 27... h5 28. Re2 Nf6 29. Rde1 Bd5 30. Rg1 (30. Kb1 $142) 30... Ng4 31. a4 bxa3 32. Kb1 Bf3 33. Ree1 Bb4 34. Rgf1 Bg2 35. Rg1 Bd5 36. Rd1 a5 37. Rge1 a4 38. bxa4 a2+ 39. Ka1 Rxa4 {[%cal Og4f2] [#] Threatens to win with ...Nf2!} 40. Rd3 Ra3 41. Bg1 Ra8 42. Bd4 Rc8 43. Rg1 Rc4 {...Ba3 is the strong threat.} 44. Bh8 Rc8 45. Bd4 Be4 {Black is clearly winning.} 46. Rdd1 Bxc2 47. Rc1 Bb3 {And now ...Rc4 would win.} 48. Rgf1 Rc4 {White did not feel at home in the position after the opening.  Weighted Error Value: White=0.60/Black=0.11 (very precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.26"]
[Round "3.10"]
[White "Barbosa, Evandro Amorim"]
[Black "Uczai, Joao Pedro Filimbert"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2487"]
[BlackElo "2083"]
[Annotator "TA"]
[PlyCount "28"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,28,66,27,41,0,16,0,0,0,4,-31,0,0,7,-73,24,17,24,29,6]} 1. e4 c5 2. Nf3 {[%cal Bg1f3,Bf3d4,Bd4b3,Bb3d2,Bd2c4][%mdl 32]} e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Qb6 6. Nb3 {White is more active.} Bb4 {B40: Sicilian: 2...e6, Unusual lines.} 7. Bd3 (7. Qd3 $14) 7... d6 8. O-O Bxc3 {The position is equal.} 9. bxc3 e5 10. Nd2 O-O 11. Nc4 Qc7 {[#]} 12. f4 $146 {[#]} (12. Bg5 $11) ({Predecessor:} 12. Qe2 Nbd7 13. f4 Re8 14. Ba3 Nc5 15. fxe5 dxe5 16. Ne3 Nxd3 17. cxd3 Qxc3 18. Bb2 {½-½ (75) Bagi,M (2432)-Szakolczai,P (2126) Ajka 2018}) 12... b5 ({Black should try} 12... Be6 $1 $17 {[%cal Re6c4]} 13. fxe5 dxe5 14. Rxf6 Bxc4) 13. Ne3 $11 exf4 14. Rxf4 {[%cal Oe4e5] Strongly threatening e5!} Nbd7 {[%mdl 32768] A rather calm draw.  Weighted Error Value: White=0.32/Black=0.25 (precise) . Loss on time!?} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "4.1"]
[White "Pichot, Alan"]
[Black "Cadilhac, Igor Tokuichi Kikuch"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2625"]
[BlackElo "2325"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,61,52,49,40,71,70,75,72,76,72,66,69,79,68,64,69,70,79,124,112,113,106,170,120,168,124,204,197,242,232,243,240,180,200,216,51,56,41]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. O-O-O d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Bd4 e5 13. Bc5 Re8 {is now debated instead of 13...Be6.} 14. Ne4 {B76: Sicilian Dragon: Yugoslav Attack, 9 g4 and 9 0-0-0.} Qc7 15. h4 {[%cal Bh2h4,Bh4h5][%mdl 32]} h6 16. h5 {White is better.} g5 17. g4 Be6 18. Bc4 Red8 19. Qf2 {White is more active.} a5 20. a4 Rab8 21. Rd3 {[#]} Bf8 $146 (21... Kh8 $142) ({Predecessor:} 21... f5 22. gxf5 Bxf5 23. Rb3 Rxb3 24. Bxb3 Kh8 25. Kb1 Bh7 {½-½ (54) Michalik,P (2568)-Erigaisi,A (2629) Warsaw 2021}) 22. Bxf8 Rxf8 23. Qc5 {[%cal Rc4d5]} Rfc8 (23... Qb6 $16) 24. Rhd1 (24. Bxd5 $6 cxd5 25. Nf6+ Kh8 26. Qxc7 Rxc7 $16) (24. Re1 $18) 24... Kh8 (24... Qb6 $16) 25. Rb3 (25. Bxd5 cxd5 26. Qxc7 Rxc7 27. Rxd5 Bxd5 28. Rxd5 Ra7 $16) (25. Re1 $18) 25... Rxb3 (25... Ra8 $16 {is a better defense.}) 26. Bxb3 $18 Kg7 (26... Kg8 {might work better.} 27. Rd2 (27. Bxd5 cxd5 28. Nf6+ Kh8 $16) 27... Kg7) 27. Nd6 Rd8 {[#]} 28. Nb5 {[%mdl 512]} Qb8 {[#]} (28... Qb7 29. Na7) 29. Na7 $1 (29. Qxc6 e4 30. Bxd5 (30. Rxd5 Qf4+ 31. Kb1 Rxd5 $16) 30... Qf4+ 31. Kb1 Rxd5 32. Rxd5 Bxd5 33. Qxd5 exf3 34. Qd4+ Kg8) 29... e4 {[#] Strongly threatening ...Rd7.} 30. Nxc6 $2 ({White has to play} 30. Qd4+ $1 $18 Kg8 31. Nxc6 Qf4+ 32. Rd2 (32. Qd2 Re8 $18)) 30... Qf4+ $14 31. Kb1 {Weighted Error Value: White=0.16 (very precise) /Black=0.20 (precise)} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "4.2"]
[White "Pires, Marcos Vinicius Tors"]
[Black "Delgado Ramirez, Neuris"]
[Result "0-1"]
[ECO "E60"]
[WhiteElo "2302"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,102,38,37,28,41,41,33,4,0,11,13,0,-6,-4,0,-9,0,-12,0,0,8,21,36,0,0,0,0,0,0,0,0,0,33,31,23,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-14,-14,-7,0,-91,-10,-9,-6,-65,0,0,0,0,0,-20,0,-41,-27,-74,-74,-298,-298,-298,-290,-271,-268,-2497,-1691,-3899,-3637,-4406,-3556,-1528,-1305,-12838,-12837,-12838,-12838]} 1. Nf3 Nf6 2. c4 g6 3. b3 Bg7 4. Bb2 d6 5. d4 O-O 6. g3 Bf5 7. Bg2 Qc8 8. O-O c6 9. Nc3 Na6 10. Qd2 {E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3.} Re8 {[#]} 11. Rad1 $146 ({Predecessor:} 11. d5 Bh3 12. Rfe1 Bxg2 13. Kxg2 Nc5 14. e4 a5 15. Rad1 a4 16. b4 Ncd7 17. Rc1 Nb6 {0-1 (59) Ram,S (2234)-Rahman,Z (2521) Mumbai 2016}) 11... Nc7 12. Nh4 {White is slightly better.} Bh3 13. e4 Bxg2 14. Kxg2 b5 15. cxb5 cxb5 16. Rfe1 Qb7 {Strongly threatening ...b4.} 17. Qe2 a5 18. Nf3 a4 19. d5 Nd7 {[%cal Bf6d7,Bd7c5,Bc5a4,Ba4c3][%mdl 32]} 20. Nd4 axb3 21. axb3 Nc5 22. b4 Na4 23. Ba1 {[%cal Rc3b5]} Nxc3 24. Bxc3 Ra3 (24... f5 $5) 25. Qb2 Rea8 {[%cal Of7f5]} 26. Ra1 (26. Re3 {feels hotter.} e6 27. Nc6 Rxc3 28. Rxc3 exd5 29. Ne7+) 26... Rxa1 27. Rxa1 Rxa1 28. Qxa1 Bxd4 29. Bxd4 e6 30. Kg1 exd5 31. e5 dxe5 32. Bxe5 Ne6 33. Qc3 Qd7 34. Qf3 Qd8 35. Bf6 {[#]} (35. Kf1 $11) 35... Qd6 (35... Ng5 $1 $17 {[%cal Rg5f3]} 36. Qf5 gxf5 37. Bxd8 Nf3+ 38. Kg2 Ne1+ 39. Kf1 Nd3) 36. Qd3 $11 Qc6 {[%cal Od5d4]} 37. Qf3 (37. Qe3 $11) 37... Ng7 ({Black should try} 37... Qc1+ $15 38. Kg2 Qc4) 38. Qf4 Ne8 39. Bd4 Qd6 {aiming for ...Qxf4.} 40. Qe3 Qe6 41. Qf3 (41. Qc1 $11) 41... Nd6 42. h4 (42. Qc3 $1 $11) 42... Nf5 $17 43. Qc3 {Loses the game.} (43. Bc5 $17 {was called for.}) 43... Nxd4 $19 44. Qxd4 {[%mdl 4096] Endgame KQ-KQ} Qe1+ 45. Kh2 {[%cal Oh4h5]} h5 {[%cal Bh7h5,Bh5g4][%mdl 32]} 46. Qf6 $2 (46. Qc5) 46... Qxb4 {Black is clearly winning.} 47. Qd8+ Kg7 {Threatens to win with ...Qd4.} 48. Qxd5 Qb2 49. Kg2 b4 50. g4 hxg4 51. h5 Qf6 {Weighted Error Value: White=0.80/Black=0.08 (flawless)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "4.3"]
[White "Bachmann, Axel"]
[Black "Guimaraes, Diogo Duarte"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2594"]
[BlackElo "2273"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,51,0,0,0,17,6,3,7,27,29,44,22,31,14,30,20,33,29,44,8,13,19,32,12,0,14,47,50,38,39,74,88,79,47,53,44,583,555,2359,478,739,685,896,825]} 1. c4 c6 2. d4 d5 3. cxd5 cxd5 4. Bg5 Nc6 5. Nc3 Bf5 (5... f6 $5 {[%cal Rf6g5]} 6. Bd2 e5 $11) 6. e3 {D10: Slav Defence: 3 cxd5 (without early Nf3) and 3 Nc3.} Qd7 7. Nf3 e6 8. Rc1 {[#] The position is equal.} h6 $146 ({Predecessor:} 8... Bd6 9. Bb5 f6 10. Bh4 Nge7 11. O-O O-O 12. Na4 Rfc8 13. Nc5 Bxc5 14. dxc5 e5 {1-0 (62) Barseghyan,H (2466)-Can,I (2361) Manavgat 2018}) 9. Bf4 Bd6 10. Bxd6 Qxd6 11. Qb3 Nge7 12. Qxb7 O-O 13. Qa6 Rfb8 {[%cal Bf8b8,Bb8b6,Bb6b4][%mdl 32]} 14. Bb5 Qb4 15. Bxc6 Nxc6 16. O-O Rb6 17. Qa4 Qxb2 {[#]} 18. Nxd5 $1 exd5 19. Rxc6 Rb4 20. Qa6 $36 {[%mdl 2048] Keeping Black busy.} Bd7 21. Rc7 Bb5 22. Qb7 Bxf1 $4 {[%mdl 8192] This move loses the game for Black.} ({Black should play} 22... Rf8 $14 23. Re1 Bc4 24. Qxa7 Qc2) 23. Qxa8+ $18 {White is clearly winning.} Kh7 {Threatens to win with ...Qb1.} 24. h3 ({Stronger than} 24. Kxf1 Qa1+ 25. Ne1 Rb1 $11) (24. Rc8 $142 {Rh8+ would kill now.} Bc4 25. Rh8+ Kg6 26. Qc6+ Kf5 27. Qd7+ Ke4 28. Ne1 Qxf2+ 29. Kxf2) 24... Qb1 (24... Rb8 $142 25. Qxa7 Bc4 26. Rxf7 Rg8) 25. Nd2 Qd3 {[#]} 26. Qxd5 $1 {Weighted Error Value: White=0.34/Black=0.56} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "4.4"]
[White "Cominato Neto, Jose Luis"]
[Black "Supi, Luis Paulo"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2272"]
[BlackElo "2581"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]

{[%evp 11,54,-4,0,-4,0,0,0,-22,-25,-30,-40,-37,-37,-46,-10,-153,-163,-281,-289,-273,-274,-293,-293,-292,-305,-313,-288,-325,-283,-370,-366,-518,-455,-566,-562,-657,-673,-635,-680,-943,-926,-817,-798,-1130,-1055]} 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 g6 5. O-O Bg7 6. Bb5+ Nc6 7. Re1 {B50: Sicilian: 2...d6, Miscellaneous.} O-O 8. h3 e5 9. d4 {The position is equal.} cxd4 10. cxd4 Nxd4 11. Nxd4 exd4 ({Of course not} 11... Qb6 12. Nf3 Qxb5 13. Qxd6 $11) 12. Qxd4 Be6 {[#] White must now prevent ...Qa5.} (12... a6 $5 {[%cal Ra6b5]} 13. Bc4 b5 $15) 13. Nc3 $146 {Black converts the advantage convincingly.} (13. Qb4 $11 {remains equal.}) ({Predecessor:} 13. Nd2 Nd5 14. Qa4 Nb6 15. Qa5 a6 16. Bd3 Rc8 17. Nf3 Nc4 18. Qxd8 Rfxd8 19. Ng5 Nxb2 20. Bxb2 Bxb2 21. Nxe6 fxe6 {0-1 (53) Rychkov,O (2333)-Shomoev,A (2574) Vladivostok 2014}) 13... Nd5 $1 $17 14. Qxg7+ (14. e5 $142) 14... Kxg7 $19 15. exd5 Bd7 16. Bd3 Re8 17. Be3 f5 {[%cal Bf7f5,Bf5f4][%mdl 32] Inhibits Ne4.} 18. Rac1 a6 19. a3 Kf7 20. Nb1 Rc8 21. Nd2 (21. Nc3 {was worth a try.}) 21... Qf6 {Black is clearly winning.} 22. Nc4 f4 23. Bb6 {[#]} Rxc4 $1 24. Bxc4 Qxb2 25. Bc7 Rxe1+ 26. Rxe1 Qc3 27. Re4 Bf5 {Weighted Error Value: White=0.83/Black=0.05 (flawless)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "4.5"]
[White "Fier, Alexandr"]
[Black "Labussiere, Yago"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2572"]
[BlackElo "2179"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,49,31,12,20,11,34,38,52,44,44,29,15,18,28,5,84,25,71,48,56,16,45,2,199,212,203,222,215,218,206,211,565,545,532,527,646,648,612,620,862,762]} 1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nf3 Bc5 5. Bg5 d6 6. c3 Bb6 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 7. a4 $5 {[%mdl 4] Exploring less charted territory.} a6 8. Nbd2 O-O {White is slightly better.} 9. O-O h6 10. Bh4 g5 11. Bg3 Kg7 {[#]} 12. Re1 $146 ({Predecessor:} 12. Ba2 Ba7 13. Re1 g4 14. Nh4 Nh5 15. Nc4 Qg5 16. Ne3 Bxe3 17. Rxe3 Nxg3 18. hxg3 {1-0 (54) Groot,P (2250)-Baum,H (2343) ICCF email 2019}) 12... Qe7 (12... Nh7 $11 {keeps the balance.}) 13. b4 (13. Bd5 $16) 13... Be6 (13... g4 $1 $11 {is superior.}) 14. d4 exd4 15. cxd4 (15. Bxe6 {with more complications.} dxc3 16. Bd5 cxd2 17. Qxd2 a5 18. Bxc6 bxc6 19. e5) 15... Nxd4 16. e5 Nd7 $2 {A mistake that costs the game.} (16... dxe5 $1 $11 17. Bxe5 Rad8 18. Nxg5 Nc6) 17. exd6 $18 cxd6 18. Nxd4 Bxd4 {[#]} 19. Ne4 $1 {[%csl LRd4,LRd6][%mdl 64] Discovered Attack} Be5 20. Nxd6 Qf6 {[#]} (20... Kg8 {is tougher.} 21. Bxe6 (21. Bxe5 Nxe5 22. Rxe5 Rad8 $16) 21... Qxe6) 21. Ne4 $1 {White is clearly winning.} Qe7 {[#]} 22. Bxe6 fxe6 23. Bxe5+ Nxe5 24. Qd4 Qc7 25. Nc5 {Weighted Error Value: White=0.09 (flawless) /Black=0.68} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "4.6"]
[White "Menna Barreto, Luiz Ney"]
[Black "Mekhitarian, Krikor Sevag"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "2254"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,88,14,14,-7,-7,-4,0,0,0,0,0,0,0,-4,0,-50,0,0,0,0,0,0,0,0,0,0,26,6,20,24,38,27,30,18,22,16,18,10,7,16,16,16,25,8,37,24,25,-35,27,-372,-383,-359,-371,-402,-421,-481,-484,-477,-455,-420,-352,-367,-345,-283,-189,-456,-387,-595,-589]} 1. Nf3 c5 2. c4 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. d4 Nxc3 6. bxc3 g6 7. e4 Bg7 8. Be3 Qa5 9. Qd2 O-O 10. Rc1 Rd8 11. d5 e6 12. c4 {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3.} Qxd2+ 13. Nxd2 Na6 {[%cal Bb8a6,Ba6b4,Bb4a2,Ba2c3][%mdl 32]} 14. Be2 {The position is equal.} b6 15. O-O Nb4 16. a3 Na2 17. Rc2 Nc3 18. Bd3 ({White should try} 18. Bf3 $1 $11) 18... exd5 $5 {[%mdl 4] An interesting side line.} (18... Ba6 $1 $15 19. Bg5 Rd7) 19. cxd5 $11 Bd7 20. Rfc1 Nb5 21. a4 {[#]} Nd6 $146 ({Predecessor:} 21... Nd4 22. Ra2 f5 23. f3 h6 24. Rb1 g5 25. h3 Be8 26. Kh1 Rab8 27. Bg1 Bg6 {½-½ (39) Murali Krishnan,B (2364)-Ashwin,J (2322) Atul 2006}) 22. Ra2 f5 $1 23. f3 fxe4 24. fxe4 Re8 {[%cal Oc5c4]} 25. Bf4 Nf7 26. Nf3 h6 {[%cal Bh7h6,Bh6h5,Bh5g4][%mdl 32]} 27. h3 g5 28. Bg3 h5 29. Re1 g4 30. hxg4 hxg4 31. Nd2 Bd4+ 32. Bf2 Ne5 33. Bf1 (33. Ba6 $5 {[%cal Rf2d4]}) 33... Bc3 34. Bb5 (34. Re3 $11 Bd4 35. Rg3) 34... Re7 (34... Bxb5 $15 35. axb5 {[#]} Nc4 $1 36. Nxc4 Bxe1) 35. Re3 $2 {[%mdl 8192] [#] This costs White the game.} (35. Rc2 $11 {and White is okay.} Bxb5 36. axb5) 35... Bxd2 $19 ({Weaker is} 35... Bd4 36. Rg3 $11) 36. Rxd2 Bxb5 37. axb5 Nc4 $1 {[%csl LRd2,LRe3]} 38. Rde2 Nxe3 39. Rxe3 {[%mdl 4096] Endgame KRR-KRB} Rae8 40. d6 Rd7 41. Bg3 Kf7 42. Kf2 Ke6 {aiming for ...a5.} 43. Bf4 $2 (43. Re1) 43... Rf8 {[%csl LRd6,LRf4]} 44. g3 (44. Kg3 $142 Rdf7 45. Bh6) 44... Rxd6 {Weighted Error Value: White=0.55/Black=0.14 (very precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "4.7"]
[White "Cuenca Jimenez, Jose Fernando"]
[Black "Caetano, Ryan Wesley Da Costa"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "2552"]
[BlackElo "2226"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,51,49,60,21,73,77,64,77,66,77,73,67,73,75,80,72,81,62,69,68,99,95,101,92,89,73,183,174,342,344,350,353,349,355,336,341,323,301]} 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 Na6 7. O-O e5 8. Be3 Qe8 {Recently 8...c6 got a lot of attention.} 9. Re1 {[#] E94: King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th moves.} Nxe4 $146 ({Predecessor:} 9... Ng4 10. Bg5 f6 11. Bc1 Nh6 12. b3 Nf7 13. Ba3 c5 14. dxc5 dxc5 15. Nd5 Nd8 16. b4 cxb4 17. Nxb4 Nxb4 18. Bxb4 {0-1 (36) Rakotomaharo,F (2422)-Kamsky,G (2665) Europe Echecs INT 2021}) 10. Nxe4 $16 {Black must now prevent dxe5.} exd4 {[#]} 11. Nxd6 $1 {White is slightly better.} Qe6 12. Bf4 {Strongly threatening Nb5.} ({Inferior is} 12. Nxc8 dxe3 13. Bf1 exf2+ 14. Kxf2 Qxc8 $17) 12... cxd6 13. Nxd4 Qf6 {[%csl LRd4,LRf4]} 14. Be3 {White is more active.} Nc5 15. Qd2 Re8 {[%cal Oe8e3]} 16. Bf3 $36 {[%cal Oe3g5][%mdl 2048] And now Bg5! would win. Black is under pressure.} Bd7 17. Rad1 Rac8 {[#]} 18. b3 $1 Ne4 19. Bxe4 Rxe4 20. Nf3 Rg4 (20... Qc3 $16) 21. h3 $18 Rxg2+ (21... Re4 {might work better.} 22. Bxa7 (22. Qxd6 Qxd6 23. Rxd6 Bc6 $16) 22... Rxe1+ 23. Rxe1 Re8) 22. Kxg2 Bxh3+ 23. Kxh3 {[%cal Bg2h3,Bh3h2,Bh2g1,Bg1f1][%mdl 32]} Qxf3+ 24. Kh2 Be5+ 25. Kg1 {aiming for Qd5.} Qg4+ 26. Kf1 {Weighted Error Value: White=0.06 (flawless) /Black=0.31} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "4.8"]
[White "Pereira, Silvio Cunha"]
[Black "Hungaski, Robert"]
[Result "0-1"]
[ECO "C12"]
[WhiteElo "2217"]
[BlackElo "2521"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,53,0,0,-21,-20,-83,-85,-81,-97,-87,-66,-66,-12,-9,-15,-14,0,0,0,0,0,0,0,0,0,0,0,-365,-356,-343,-335,-266,-266,-316,-316,-387,-162,-153,-144,-361,-135,-99]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. Bxc3 Ne4 8. Qf3 {C12: French: Classical System: McCutcheon Variation.} O-O {[#]} 9. Bb4 $146 (9. Qe3 $11 {keeps the balance.}) ({Predecessor:} 9. Qe3 f6 10. exf6 Qxf6 11. Nf3 c5 12. Be2 Nc6 13. O-O cxd4 14. Bxd4 Nxd4 15. Qxd4 Qxd4 16. Nxd4 {½-½ (29) Skuhala,J (2249)-Unuk,L (2230) Otocec 2015}) 9... c5 $1 $17 10. Bxc5 {Black is better.} Nxc5 11. dxc5 Nc6 12. Qe3 d4 (12... Qa5+ $1 $15 13. Kd1 f6 14. exf6 Rxf6) 13. Qe4 $11 Qa5+ 14. Kd1 Qxc5 15. Bd3 {[%csl Gd3][%cal Re4h7]} f5 16. exf6 $1 Rxf6 ({Don't do} 16... Qf5 17. Qxf5 exf5 18. fxg7 Kxg7 19. Kd2 $16) 17. Nf3 e5 $36 {[%mdl 2048] Strongly threatening ...Bf5. Black has good play.} 18. Qh7+ Kf7 19. Nd2 Qf8 20. Ne4 $2 {[%mdl 8192]} (20. Re1 $11) 20... Bf5 $19 21. Nd6+ Qxd6 22. Bxf5 e4 23. Bxe4 Rxf2 24. Bf3 Qf4 (24... Qc5 $142 $1 25. Qe4 d3 26. Qd5+ Qxd5 27. Bxd5+ Ke7 28. Bxc6 bxc6 29. cxd3 Raf8) 25. Bh5+ {[#]} Ke6 $1 {[%csl Gf2][%cal Rf4d2] Black is more active.} 26. Re1+ $2 {[#]} (26. Qg6+ $17 {is the only way for White.} Kd5 27. Be2) 26... Kd6 $2 {Chess con chili.} (26... Ne5 $1 $19 {[%csl Gf2][%cal Rf4d2] is more deadly.} 27. Qg6+ (27. Qd3 $2 Kf6 $19) 27... Kd5 28. Rxe5+ Kxe5 29. Qxg7+ Kd6 30. Qg6+ Kc7 31. Qg7+ Kd6 32. Qg6+ Ke5 33. Qg7+ Kd6) 27. Qg6+ {Weighted Error Value: White=0.57/Black=0.33} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "4.9"]
[White "Lima, Darcy"]
[Black "Alboredo, Julia"]
[Result "1/2-1/2"]
[ECO "A31"]
[WhiteElo "2507"]
[BlackElo "2200"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,64,40,35,68,73,71,60,73,65,62,68,58,62,96,70,77,88,97,85,87,78,85,68,68,63,100,68,93,49,49,37,59,28,31,23,15,13,13,12,12,18,20,18,23,17,17,4,25,25,28,27,33,33,43,6,6]} 1. c4 c5 2. Nf3 {[%cal Bg1f3,Bf3d4,Bd4c2,Bc2e3][%mdl 32]} Nf6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 e5 6. Nc2 d6 {A31: Symmetrical English: 2 Nf3 Nf6 3 d4.} 7. g3 Be6 8. Ne3 {Prevents d5.} Be7 {White is slightly better.} 9. Bg2 O-O 10. O-O Rc8 11. Ned5 Ne8 {[#]} 12. Nxe7+ $146 ({Predecessor:} 12. b3 Bg5 13. Bxg5 Qxg5 14. e3 Qh6 15. Qd2 Kh8 16. Rad1 Bh3 17. f4 Bxg2 18. Qxg2 {½-½ (57) Salas Arros,C (2418)-Mesias Rojas,R (2220) Santiago de Chile 2007}) 12... Qxe7 13. b3 a6 14. Nd5 Bxd5 15. Qxd5 Nc7 16. Qd2 Rfd8 17. Ba3 Rd7 18. Rad1 {[%cal Ra3d6]} Rcd8 19. Qe3 (19. Bh3 $16) 19... Qe6 $14 20. Bd5 {A strong pair of Bishops.} Qf6 21. Kg2 Nxd5 22. Rxd5 Ne7 23. Rd2 d5 24. Bxe7 Qxe7 25. cxd5 Rxd5 26. Rxd5 Rxd5 $11 {[%mdl 4096] Endgame KQR-KQR} 27. Rc1 Qd7 {Prevents Rc8+.} 28. Qb6 {[#] aiming for Rc7.} Rb5 29. Qc7 Qxc7 30. Rxc7 {[%cal Rc7c8]} g6 31. Kf3 Kg7 32. g4 Kf6 {Weighted Error Value: White=0.08 (flawless) /Black=0.08 (flawless)} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "4.10"]
[White "Guimaraes, Wagner Peixoto"]
[Black "Barbosa, Evandro Amorim"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2194"]
[BlackElo "2487"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,56,0,0,0,0,-2,-7,-3,-8,12,-11,0,-17,-16,-22,-15,-18,0,-73,-31,-39,-53,-155,-152,-154,-128,-112,-53,-56,-22,-65,-19,-18,0,0,6,4,4,0,0,0,0]} 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. e3 Nf6 5. d4 cxd4 6. exd4 d5 7. Bg5 Be6 8. Bxf6 exf6 9. c5 Bg7 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} 10. Be2 O-O 11. O-O g5 {[%cal Bg6g5,Bg5g4][%mdl 32]} 12. Bb5 {[#]} Ne7 $146 ({Predecessor:} 12... Bg4 13. Bxc6 bxc6 14. b4 f5 15. b5 Bxf3 16. Qxf3 Bxd4 17. Rac1 Qf6 18. Ne2 Be5 19. bxc6 d4 {½-½ (19) Kiewra,K (2375)-Chandra,A (2471) Saint Louis 2018}) 13. Re1 Ng6 14. Bd3 g4 $1 15. Nd2 f5 $1 {[%cal Bf6f5,Bf5f4][%mdl 32]} 16. Nb3 a6 17. Bf1 (17. Qd2 $11 {remains equal.}) 17... Nh4 (17... Qf6 $17) 18. Ne2 Bh6 19. Ng3 (19. Nec1 $15) 19... f4 $17 {Black is more active.} 20. Nh5 Kh8 21. Re5 Rg8 ({Black should play} 21... Qe7 $17 {aiming for ...f6.} 22. Qxg4 Rg8) 22. Qe1 $15 Ng6 23. Bd3 (23. Rxe6 $11 fxe6 24. Qxe6) 23... Re8 (23... f3 $15 {should be considered.} 24. g3 Nxe5 25. Qxe5+ Bg7 26. Nxg7 Rxg7) 24. c6 $11 {The position is equal.} bxc6 {Strongly threatening ...Bg5.} (24... Nxe5 $2 25. Qxe5+ f6 26. Nxf6 $18) 25. Nc5 {[%csl LRa6,LRe6][%cal Re5e6] Pair of Knights!} Bd7 (25... Nxe5 $2 26. Qxe5+ f6 27. Nxf6 $18) 26. Nxd7 Qxd7 27. Bxg6 hxg6 (27... fxg6 $5 28. Nf6 Rxe5 29. Qxe5 Qf7 30. Nh5+ (30. Nxg4+ Bg7 $11) 30... Kg8 31. Nf6+ Kh8 32. Nh5+ (32. Nxg4+ Bg7 $11) 32... Kg8 33. Nf6+ Kh8 $11) 28. Nf6 {[%csl LRd7,LRe8]} Rxe5 {[%mdl 32768] Weighted Error Value: White=0.16 (very precise) /Black=0.12 (very precise) . Loss on time!?} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "5.1"]
[White "Barbosa, Evandro Amorim"]
[Black "Pichot, Alan"]
[Result "0-1"]
[ECO "C77"]
[WhiteElo "2487"]
[BlackElo "2625"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]

{[%evp 12,100,15,15,15,18,14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,0,-19,-4,-12,0,0,0,0,0,0,0,-12,-7,-22,-3,-1,0,-8,0,-11,-14,-14,-14,-15,-15,-22,-22,-57,-52,-82,-87,-90,-86,-112,-109,-109,-109,-121,-115,-158,-139,-215,-215,-197,-187,-209,-209,-336,-334,-300,-283,-268,-286,-312,-315,-369,-369,-372,-354,-410,-275,-359,-354,-529,-861,-784,-734,-574,-565]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 {[%cal Bf1b5,Bb5a4,Ba4b3,Bb3d5][%mdl 32]} a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Bc5 7. Nc3 {7.c3 is setting a new trend.} d6 {C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines.} 8. Nd5 h6 {To avoid Bg5} 9. Nxf6+ Qxf6 {The position is equal.} 10. Bd5 Bd7 11. Be3 Rd8 12. Bxc5 dxc5 13. Bxc6 Bxc6 14. Qe2 O-O 15. O-O {[#]} Qd6 $146 ({Predecessor:} 15... Bd7 16. Qe3 Qd6 17. Nd2 Be6 18. Nb3 Bxb3 19. axb3 Rb8 20. f4 {½-½ (20) Baskin,R (2287)-Wan,Y (2482) Groningen 2014}) 16. Nh4 {[%cal Bf3h4,Bh4f5,Bf5e3,Be3c4][%mdl 32]} Bd7 17. Qe3 Be6 18. a4 c4 {[%cal Rc4d3]} 19. axb5 axb5 {[%cal Rc4d3]} 20. dxc4 bxc4 21. Nf5 {To avoid Qd4} Qb4 22. Rab1 f6 23. h3 Rd7 24. Qc3 Rb8 25. Ne3 Qb7 26. Nxc4 Qxe4 27. Ne3 Qd4 28. Qa3 Qb6 29. Rfd1 Rd4 30. c3 Rxd1+ 31. Rxd1 Qxb2 {Black continues to play with concentration.} 32. Qe7 Qb6 33. Rd8+ Rxd8 34. Qxd8+ Kf7 35. Qd3 Qc5 {[%cal Of6f5]} 36. h4 ({White should play} 36. g4) 36... f5 $17 {[%cal Bf6f5,Bf5f4][%mdl 32]} 37. h5 (37. g3 $17) 37... e4 $19 38. Qd2 Qd6 39. Qc1 f4 {To avoid g3} 40. Nc2 (40. Nf1 $142) 40... Bg4 41. Nd4 Bxh5 42. Qb1 Bg6 ({Avoid the trap} 42... c5 $2 43. Qb7+ Kf6 44. Qxg7+ Kxg7 45. Nf5+ Kf6 46. Nxd6 $19) 43. Qb3+ Kf6 44. Qb7 c5 45. Nb5 Qd1+ 46. Kh2 Qh5+ 47. Kg1 Qe5 {[#] And now ...e3 would win.} 48. Nc7 (48. Qc6+ {was called for.} Kg5 49. Nd6) 48... e3 (48... Bf7 $142 49. Qc6+ Kg5) 49. fxe3 fxe3 {( -> ...e2)} 50. Qf3+ Kg5 {Weighted Error Value: White=0.16 (very precise) /Black=0.05 (flawless)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "5.2"]
[White "Delgado Ramirez, Neuris"]
[Black "Di Berardino, Diego Rafael"]
[Result "1/2-1/2"]
[ECO "B45"]
[WhiteElo "2614"]
[BlackElo "2480"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]

{[%evp 12,119,2,0,23,0,0,-63,-50,-122,-125,-139,-106,-102,-121,-112,-71,-73,-75,-270,-257,-240,-280,-281,-267,-262,-193,-185,-185,-184,-160,-165,-164,-160,-164,-168,-161,-176,-175,-185,-202,-189,-170,-175,-179,-210,-202,-201,-185,-177,-167,-203,-195,-211,-188,-191,-183,-188,-191,-454,-451,-453,-400,-2330,-2205,-1957,-1531,-1510,-1393,-1363,-1152,-1183,-1183,-944,-881,-1847,-1896,-1114,-1148,-644,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,0,-8,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. a3 Be7 7. f4 d6 {Inhibits e5. B45: Sicilian Four Knights.} 8. Be3 O-O 9. Qf3 (9. Nb3 $11) 9... e5 $1 $15 {Black is slightly better.} 10. Nf5 ({Better is} 10. Nxc6 $15 bxc6 11. h3) 10... Bxf5 $17 11. exf5 d5 12. O-O-O {[%cal Rc3d5]} e4 {[#]} 13. Qe2 $146 ({Predecessor:} 13. Qh3 Qa5 14. Nb1 Rfd8 15. g4 d4 16. Bd2 Qc5 17. g5 Rac8 18. Qb3 d3 19. Bc3 Qe3+ 20. Nd2 dxc2 21. Kxc2 Nd4+ {0-1 (21) Eid,F (2323)-Rakotomaharo,F (2422) Chess.com INT 2020}) 13... d4 (13... Rc8 $142 {White must now prevent ...d4.} 14. g4 d4) 14. Nb5 {[%cal Rb5d4]} Bc5 $36 {[%mdl 2048] ...Qb6 is the strong threat. Black has strong initiative.} 15. Qc4 $2 (15. Nxd4 $17 Bxd4 16. Bxd4 Nxd4 17. Qc4) 15... Qb6 $19 16. b4 {[#]} Bxb4 {[%mdl 512]} 17. axb4 {[%cal Re3d4]} dxe3 18. Qc5 Qa6 {[%cal Ra6a1]} 19. Kb2 {Inhibits Qa1+.} Qa4 20. Bc4 a6 ({Inferior is} 20... Nxb4 21. Bb3 Qa5 22. Ra1 $17) 21. Nc3 Qxb4+ 22. Qxb4 Nxb4 {Pair of Knights!} 23. Rhe1 Rfd8 24. Rxd8+ Rxd8 25. Rxe3 Rd4 26. Bb3 Kf8 27. h3 h5 {Prevents g4.} 28. g4 hxg4 29. hxg4 Nxg4 30. Rxe4 Nc6 31. Bd5 Rxe4 32. Nxe4 Ne3 {[%csl LRd5,LRf5]} 33. Bxc6 bxc6 {[%mdl 4096] Endgame KN-KN} 34. f6 gxf6 35. Nc5 $2 (35. Nxf6 {only move.} Nd5 36. Nh5) 35... Ke7 36. Nxa6 Nd5 37. c4 (37. Nc5 $142 Nxf4 38. Nb7) 37... Nxf4 38. c5 Ke6 {Threatens to win with ...Kd5.} 39. Nb4 Kd7 40. Kb3 Nd5 {( -> ...Nxb4)} 41. Nc2 f5 {[%cal Bf6f5,Bf5f4][%mdl 32]} 42. Kc4 Nc7 43. Nd4 f4 44. Kd3 Ne6 {Strongly threatening ...Nxd4.} 45. Nb3 f5 $2 ({Black should try} 45... Ke7 $19 46. Ke4 Kf6) 46. Ke2 $11 {The position is equal.} Ke7 47. Kf3 Kf6 48. Na5 Nd4+ (48... Nxc5 49. Nxc6 Ne6 50. Nb8) 49. Kxf4 Ke6 50. Nc4 Kd5 {[%csl LRc4,LRc5]} 51. Ne3+ Ke6 (51... Kxc5 $5 52. Ke5 Ne2 $11) 52. Nc4 $1 Kf6 53. Na5 Ne6+ 54. Kf3 Nd8 55. Kf4 Ke6 56. Nb3 Kd5 {And now ...Ne6+ would win.} (56... Nb7 $5) 57. Kxf5 Nb7 58. Kf4 Kc4 59. Nd2+ Kd3 60. Nf3 {Black had all chances to win.  Weighted Error Value: White=0.50/Black=0.26 (precise)} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "5.3"]
[White "Cubas, Jose Fernando"]
[Black "Bachmann, Axel"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2469"]
[BlackElo "2594"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]

{[%evp 19,66,21,51,31,33,0,-7,0,0,-14,56,55,197,182,191,87,89,70,119,132,166,103,181,187,229,232,258,250,254,253,269,199,378,371,346,182,496,470,989,991,983,983,728,728,1003,1003,29963,5273,29999]} 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Bc4 d5 5. exd5 b5 6. Bb3 b4 7. Nce2 cxd5 8. Bd2 a5 9. a3 bxa3 10. Rxa3 {[%cal Ba1a3,Ba3d3,Bd3d4,Bd4c4][%mdl 32]} Nc6 11. Ba4 {B06: Modern Defence.} Bd7 {[#]} 12. Qa1 $146 ({Predecessor:} 12. Nf3 Nf6 13. Qa1 O-O 14. Bxc6 Bxc6 15. Bxa5 Qc8 16. O-O Bb5 17. Re1 Qxc2 18. Nc3 Rfb8 19. Rc1 Qd3 {½-½ (19) Wirig,A (2510)-Bissieres,M (2352) Paris 2011}) 12... Nxd4 13. Nxd4 {The position is equal.} Bxd4 14. Rd3 e5 (14... Bg7 $1 $11) 15. Nf3 $14 {[%cal Of3e5]} (15. c3 Bxf2+ $1 16. Kxf2 Qh4+ 17. g3 Qxa4 18. Qxa4 Bxa4 19. Rxd5 Nf6 20. Rxe5+ Kd7 $17) 15... Nf6 (15... Bxa4 $14 16. Qxa4+ Qd7 17. Qxd7+ Kxd7) 16. Nxd4 $18 exd4 17. O-O ({Much less strong is} 17. Rxd4 $6 Qe7+ 18. Be3 O-O $14) (17. Bh6 $1 $18 {is more deadly.}) 17... O-O $16 18. Bg5 $36 {[%mdl 2048] Threatens to win with Bxd7. White has good play.} Bf5 ({Black should try} 18... Ra6 $14) 19. Rxd4 Qb6 20. Be3 {This bishop pair is nice.} ({Don't play} 20. Bxf6 $6 Qxf6 21. c3 (21. Rxd5 Be4 $14) 21... Rfd8 $14) ({White should play} 20. b3 $18) 20... Qc7 {[#] Prevents c4.} (20... Qa6 $16 {was worth a try.}) 21. b3 $1 $18 {Bh6 is the strong threat.} Ra6 (21... Qxc2 $2 22. Rc1 Qe2 23. Rd2 $18) (21... Bxc2 {was called for.} 22. Bh6 Qb6) 22. c4 dxc4 23. Rxc4 Qb7 {[#]} 24. Bg5 $1 Nh5 25. Rfc1 {And now g4 would win.} Qd5 $2 (25... Be6) 26. Bh6 Rd8 27. Bc6 (27. g4 $142) 27... Rxc6 $2 (27... Qd6 {is a better chance.} 28. Bb5 Rb6) 28. Rxc6 Qxb3 {[#]} (28... f6 $142 29. h3 g5) 29. Qd4 $3 {[%cal Rd4d8][%mdl 512]} Qb8 {[#]} 30. Rb6 $1 {[%mdl 512]} Qa8 31. Rd6 Rxd6 32. Qxd6 {Threatening mate with Qd4.} Ng7 33. g4 Ne8 34. Qf8# {Weighted Error Value: White=0.30/Black=1.30} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "5.4"]
[White "Supi, Luis Paulo"]
[Black "Rodriguez Vila, Andres"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2581"]
[BlackElo "2473"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]

{[%evp 11,54,-6,-10,0,4,-7,0,-38,-31,-41,-29,-43,-18,-42,-18,-145,-160,-271,-271,-289,-269,-288,-288,-289,-289,-292,-290,-328,-297,-382,-365,-547,-515,-626,-609,-733,-714,-719,-714,-1269,-1254,-1154,-1058,-1197,-1175]} 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 g6 5. O-O Bg7 6. Bb5+ Nc6 7. Re1 {B50: Sicilian: 2...d6, Miscellaneous.} O-O 8. h3 $1 e5 9. d4 {The position is equal.} cxd4 10. cxd4 Nxd4 11. Nxd4 exd4 ({Reject} 11... Qb6 12. Nf3 Qxb5 13. Qxd6 $11) 12. Qxd4 Be6 $36 {[%mdl 2048] [#] White must now prevent ...Qa5. Black has some pressure.} 13. Nc3 $146 {White is now going downhill.} (13. Qb4 $11) ({Predecessor:} 13. Nd2 Nd5 14. Qa4 Nb6 15. Qa5 a6 16. Bd3 Rc8 17. Nf3 Nc4 18. Qxd8 Rfxd8 19. Ng5 Nxb2 20. Bxb2 Bxb2 21. Nxe6 fxe6 {0-1 (53) Rychkov,O (2333)-Shomoev,A (2574) Vladivostok 2014}) 13... Nd5 $1 $17 14. Qxg7+ (14. e5 $17 {was necessary.}) 14... Kxg7 $19 15. exd5 Bd7 16. Bd3 Re8 17. Be3 f5 {[%cal Bf7f5,Bf5f4][%mdl 32] Inhibits Ne4.} 18. Rac1 a6 19. a3 Kf7 20. Nb1 Rc8 21. Nd2 (21. Nc3 {keeps fighting.}) 21... Qf6 {Black is clearly winning.} 22. Nc4 f4 23. Bb6 {[#]} Rxc4 $1 24. Bxc4 Qxb2 25. Bc7 Rxe1+ 26. Rxe1 Qc3 27. Re4 Bf5 {[%mdl 32768] Weighted Error Value: White=0.78/Black=0.05 (flawless) . Loss on time!?} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "5.5"]
[White "Matsuura, Everaldo"]
[Black "Fier, Alexandr"]
[Result "1/2-1/2"]
[ECO "A24"]
[WhiteElo "2441"]
[BlackElo "2572"]
[Annotator "TA"]
[PlyCount "28"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]

{[%evp 9,28,27,22,29,16,21,45,28,126,59,66,74,54,17,28,45,34,14,74,67,90]} 1. c4 g6 2. Nc3 Nf6 3. g3 Bg7 4. Bg2 O-O 5. e4 e5 6. Nge2 {[%cal Bg1e2,Be2c3,Bc3d5][%mdl 32] A24: English Opening vs King's Indian: Lines without ...Nc6.} a6 7. O-O b5 8. d4 exd4 {[#]} (8... d6 $1 $11) 9. e5 $1 dxc3 $14 {[#]} 10. Bxa8 $146 ({Predecessor:} 10. exf6 Qxf6 11. Bxa8 cxb2 12. Rb1 bxc1=Q 13. Nxc1 Nc6 14. cxb5 axb5 15. a4 bxa4 16. Qxa4 {0-1 (34) Wirthensohn,H (2410)-Nemet,I (2450) Switzerland 1994}) 10... Ng4 11. Nxc3 Nxe5 12. cxb5 axb5 13. Bg2 ({Of course not} 13. Nxb5 Ba6 14. a4 c6 $15) 13... b4 (13... c6 $1 $11 {keeps the balance.}) 14. Nd5 $16 Ba6 {Weighted Error Value: White=0.17 (very precise) /Black=0.31} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "5.6"]
[White "Mekhitarian, Krikor Sevag"]
[Black "Languidey, Simon Alejandro"]
[Result "1/2-1/2"]
[ECO "C10"]
[WhiteElo "2562"]
[BlackElo "2403"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]

{[%evp 16,76,33,43,44,50,44,52,42,33,39,15,10,8,13,7,17,10,11,6,8,0,11,0,7,9,10,0,10,0,12,-3,0,0,0,0,0,0,4,-5,0,0,0,0,0,0,0,0,0,0,0,-40,0,0,0,-20,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 6. Bd3 Nd7 7. O-O Ngf6 8. Ng3 Bd6 9. Re1 O-O {C10: French with 3 Nc3: Unusual Black 3rd moves and 3...dxe4.} 10. Ne5 Be7 11. Nxc6 bxc6 {White is slightly better.} 12. c3 c5 {[#]} 13. dxc5 $146 (13. Ne2 {keeps more tension.} Qb8 14. dxc5 Bxc5 15. Ng3 Rd8 16. Qf3) ({Predecessor:} 13. Ne2 h6 14. Bc2 Qc8 15. Qd3 Rb8 16. dxc5 Nxc5 17. Qh3 Ncd7 18. Nd4 Re8 19. Nc6 {1-0 (69) Stubbs,M (2119)-Sheward,A (1956) ICCF email 2018}) 13... Nxc5 14. Bc2 Qxd1 15. Rxd1 a5 16. Be3 Rfb8 17. Rab1 a4 18. Bd4 Ra6 {[%cal Ba8a6,Ba6b6,Bb6b7,Bb7a7,Ba7a2][%mdl 32]} 19. Nf1 {[%cal Bg3f1,Bf1d2,Bd2c4][%mdl 32]} Rab6 20. b4 axb3 21. axb3 R6b7 {[%cal Rc5b3]} 22. Nd2 Ncd7 23. Nc4 c5 24. Be3 Nd5 25. Bd2 Ra7 26. Be4 Bf6 27. Rdc1 g6 28. g3 Ra2 {[%cal Oa2d2]} 29. Be1 Ne5 30. Nxe5 Bxe5 31. b4 c4 32. f4 Bf6 33. b5 Ra5 (33... Bd8 $5 {[%cal Ra2a5]}) 34. Bxd5 {The position is equal.} exd5 35. b6 d4 36. cxd4 Bxd4+ 37. Bf2 Bxf2+ 38. Kxf2 Ra6 {Weighted Error Value: White=0.05 (flawless) /Black=0.04 (flawless)} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "5.7"]
[White "Filgueiras, Nathan Felipe"]
[Black "Cuenca Jimenez, Jose Fernando"]
[Result "0-1"]
[ECO "B32"]
[WhiteElo "2309"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]

{[%evp 14,64,23,26,39,21,36,6,14,0,18,21,27,0,0,0,0,-9,-8,-16,0,0,0,-14,-4,-21,-12,-22,-13,-27,0,-149,-158,-158,-145,-145,-91,-89,-36,-143,-93,-265,-270,-444,-395,-460,-446,-453,-439,-443,-395,-481,-445]} 1. e4 c5 2. Nf3 {[%cal Bg1f3,Bf3d4,Bd4b5,Bb5a3,Ba3c4][%mdl 32]} Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 Be6 8. Nc4 Rb8 {B32: Sicilian: Löwenthal and Kalashnikov Variations.} 9. Be2 Be7 10. O-O Nf6 {The position is equal.} 11. Bg5 Nd4 12. Bxf6 Bxf6 {[#]} 13. Nd5 $146 (13. Ne3 {seems wilder.} Rc8 14. Bd3 Bg5 15. Ncd5 O-O 16. c3) ({Predecessor:} 13. Ne3 Bg5 14. Ncd5 Bxe3 15. Nxe3 d5 16. exd5 Bxd5 17. c3 Nxe2+ 18. Qxe2 Be6 19. Rfd1 {½-½ (42) Martinez Conde Hernandez,C (2153)-Santos Izquierdo,F (2121) Conil de la Frontera 2021}) 13... Bxd5 14. exd5 Nxe2+ 15. Qxe2 O-O 16. a4 Bg5 17. a5 f5 18. Ra4 Qc7 19. Nb6 Rbe8 20. Rc4 Qe7 21. f3 e4 22. Re1 (22. c3 $11 {keeps the balance.}) 22... Qf7 $1 $17 {And now ...exf3 would win.} 23. Rf1 {[%cal Rf3e4] [#]} exf3 24. Qxf3 {[#]} Be3+ (24... Re3 $142 $1 {[%cal Re3f3]} 25. Qf2 g6) 25. Kh1 g5 (25... g6 $17) 26. Qg3 (26. Rc8 $15) 26... Re5 (26... Qg6 $142 27. Rc7 h5) 27. Rd1 $2 {This move loses the game for White.} (27. Rc3 $17 f4 28. Qh3) 27... h5 $19 {[%cal Bh7h5,Bh5h4][%mdl 32] Strongly threatening ...f4.} 28. Rc8 $2 (28. Rc3 {was necessary.} f4 29. Qf3) 28... Rxc8 29. Nxc8 Qc7 30. Nb6 Qxc2 31. Rf1 h4 32. Qh3 Qe2 {Weighted Error Value: White=0.48/Black=0.11 (very precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "5.8"]
[White "Hungaski, Robert"]
[Black "Federzoni, Enzo"]
[Result "1-0"]
[ECO "A65"]
[WhiteElo "2521"]
[BlackElo "2177"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]

{[%evp 18,89,24,17,14,24,49,62,53,49,59,58,110,107,108,45,48,38,46,31,54,58,49,17,94,93,96,87,93,19,124,84,205,171,225,179,291,289,540,281,581,352,318,284,276,270,262,299,464,426,429,328,347,315,393,377,1477,1329,1301,1239,29966,29968,29965,6219,12839,6270,29989,29990,29990,29991,29995,29996,29996,29997]} 1. d4 {[%cal Bd2d4,Bd4d5][%mdl 32]} Nf6 2. c4 g6 3. f3 c5 4. d5 d6 5. e4 Bg7 6. Nc3 O-O 7. Nge2 e6 8. Ng3 exd5 9. cxd5 a6 10. a4 h5 {A65: Modern Benoni: 6 e4.} 11. Be2 h4 12. Nf1 Nh7 {To avoid Bg5. White is slightly better.} 13. Ne3 Nd7 14. O-O f5 (14... Bd4 $14) 15. exf5 $16 gxf5 16. Nc4 (16. f4 $1 $16) 16... Ne5 $14 17. Bf4 {[#]} Nxc4 $146 ({Predecessor:} 17... Re8 18. Qd2 Nxc4 19. Bxc4 Qf6 20. Ra3 Nf8 21. Kh1 Ng6 22. Bh6 Qd4 23. Bd3 Bd7 {0-1 (47) Fedoseev,V (2498)-Matlakov,M (2663) St Petersburg 2012}) 18. Bxc4 Qf6 19. a5 Bd7 20. Ra3 {[%cal Ba1a3,Ba3b3,Bb3b6][%mdl 32] Threatening Rb3.} Ng5 (20... Rac8 $11 21. Na4 Rce8) 21. Rb3 $1 $16 Rab8 22. Rb6 Nf7 23. Re1 (23. Kh1 $16) 23... Kh8 (23... Qd4+ $11 {remains equal.} 24. Qxd4 cxd4) 24. h3 {White is much more active.} Rg8 {Loses the game.} (24... Qd4+ $16 25. Qxd4 cxd4) 25. Kh1 $18 Qg6 (25... Bh6 $142 26. Bxh6 Qxh6) 26. Qd2 {Re7 is the strong threat.} Qf6 (26... Bf6 $142 27. Bxd6 Nxd6 28. Rxd6 Bg5 29. Rxg6 Bxd2 30. Rxg8+ Rxg8) 27. Qf2 Bh6 $2 (27... Rge8 {is a better defense.} 28. Rxe8+ Bxe8) 28. Bxh6 Qxh6 (28... Nxh6 29. Qxc5 Nf7) 29. f4 {Black must now prevent Re7.} Qf6 30. Re3 Kg7 31. Ne2 {To avoid Qd4} Rge8 32. Rxe8 Bxe8 {[#]} (32... Rxe8 {was called for.} 33. Rxb7 Bc8) 33. Bxa6 $1 {[%mdl 512]} Ra8 34. Bb5 Qxb2 {[#]} 35. Qxh4 $1 Bxb5 {[#]} (35... Qf6 36. Qxf6+) 36. Ng3 {The board is on fire.} Qb1+ (36... Rh8 37. Nxf5+ Kf8 38. Qe7+ Kg8) 37. Kh2 {Nh5+ would kill now.} Rh8 {[#]} 38. Qe7 $1 Qd3 39. Rxb7 Qxd5 40. Rxb5 {Threatening mate with a6.} Rh6 41. Rb7 {White threatens a6 and mate.} c4 42. a6 {[%cal Ba5a6,Ba6a7][%mdl 32] White mates.} c3 43. a7 Rh8 44. Qg5+ Kh7 {[#]} 45. Nh5 $1 {[%mdl 512] Weighted Error Value: White=0.29 (precise) /Black=0.72} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "5.9"]
[White "Abrantes, Tiago Garrido"]
[Black "Lima, Darcy"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2187"]
[BlackElo "2507"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]

{[%evp 15,88,20,27,18,21,0,7,0,0,-20,-7,-32,-9,-18,-7,-40,-32,-53,-41,-62,-52,-75,-45,-70,-65,-73,-68,-72,-72,-72,-59,-34,-25,-13,0,-82,-24,-25,-28,-71,-64,-71,-71,-75,-72,-130,-116,-125,-123,-133,-133,-128,-108,-109,-76,-108,-125,-174,-160,-165,-131,-153,-114,-286,-290,-306,-327,-452,-469,-511,-484,-669,-665,-629,-612]} 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Qe7 5. Bg2 Nc6 6. Nf3 Bxd2+ 7. Nbxd2 {7.Qxd2 is the fancy move.} d6 8. O-O a5 9. e3 {E11: Bogo-Indian.} O-O 10. Qe2 e5 {[#]} 11. d5 $146 {The position is equal.} ({Predecessor:} 11. dxe5 dxe5 12. h3 Rd8 13. Ng5 Bf5 14. Nge4 Nxe4 15. Nxe4 Be6 16. Nc3 Qb4 17. Nd5 {0-1 (57) Rey Malde,H (1905)-Arnedo Ruiz,A (2124) Salobrena 2012}) 11... Nb8 12. h3 Na6 13. b3 Bd7 14. a3 c6 15. dxc6 bxc6 16. e4 Rab8 17. Rab1 c5 18. Rfc1 Bc6 19. Nh2 Nc7 {[%cal Ba6c7,Bc7e6,Be6d4][%mdl 32]} 20. Nhf1 Ne6 21. Ne3 Nd4 22. Qd3 Rb7 {Black is much more active.} 23. Nf5 Qd8 24. Nxd4 exd4 25. Re1 {[#]} (25. b4 $1 $11 {remains equal.} Rb8 26. bxc5 dxc5 27. e5 Bxg2 28. Kxg2) 25... Re7 (25... Nd7 $1 $17) 26. b4 $11 Rfe8 27. bxc5 (27. b5 $11 {is more appropriate.} Bb7 28. Re2) 27... dxc5 $17 28. f4 Nd7 {[%cal Bf6d7,Bd7b6,Bb6a4,Ba4c3][%mdl 32]} 29. Bf3 f6 {Inhibits e5.} 30. Kf2 (30. Re2 $142) 30... Qc7 31. h4 {Prevents g5.} Nb6 32. h5 Na4 33. Rb5 Bxb5 34. cxb5 Nc3 35. a4 Kh8 36. Qc4 (36. Nc4 $17) 36... Qd6 37. Qb3 Qd7 38. Qc4 h6 39. Qxc5 $2 {Loses the game.} (39. Ra1 $17) 39... Nxa4 $19 40. Qc6 Qd8 {[#] Threatens to win with ...Rc7.} 41. Rc1 Nc3 {Strongly threatening ...Rc7. Black is clearly winning.} 42. Ra1 a4 43. Qc5 Rb7 44. Qc4 Rxb5 {Weighted Error Value: White=0.29 (precise) /Black=0.10 (very precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.27"]
[Round "5.10"]
[White "Sega, Carlos Alberto"]
[Black "Molina, Roberto Junio Brito"]
[Result "0-1"]
[ECO "A14"]
[WhiteElo "2186"]
[BlackElo "2420"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]

{[%evp 19,68,-3,-4,-34,0,-26,-12,-20,-18,-22,0,-15,-4,-68,-36,-35,-35,-33,-12,-78,-58,-145,-147,-252,-149,-147,-152,-160,-157,-151,-157,-185,-161,-231,-216,-192,-127,-289,-293,-314,-314,-296,-268,-263,-252,-279,-242,-283,-279,-291,-266]} 1. c4 e6 2. g3 d5 3. Nf3 Nf6 4. Bg2 Be7 5. O-O O-O 6. b3 d4 7. e3 c5 8. exd4 cxd4 9. Re1 Nc6 10. Bb2 Re8 11. Na3 {A14: English Opening: 1...e6 with b3 by White.} Bf8 12. d3 e5 13. Nc2 {[%cal Ob3b4] The position is equal.} a5 14. a3 Bf5 15. b4 axb4 {[#]} 16. Nxb4 $146 ({White should try} 16. axb4 $11 Rxa1 17. Bxa1) ({Predecessor:} 16. axb4 Rxa1 17. Bxa1 Nxb4 18. Rxe5 Rxe5 19. Nxe5 Nxc2 20. Qxc2 Bc5 21. Bb2 Qa5 22. Qc1 {½-½ (71) Jere,D (2364)-Steel,H (2407) Cape Town 2016}) 16... Qd6 {Black is more active.} (16... Nxb4 17. axb4 Rxa1 18. Qxa1 $11) (16... Ra5 $5 {[%cal Rc6b4]}) 17. Nd5 Nxd5 18. cxd5 Na5 (18... Qxd5 19. Nxd4 $1 Qd7 20. Nxc6 bxc6 21. Bxe5 $14) 19. Ng5 (19. Bc1 $11) 19... Qd7 {aiming for ...Qb5.} 20. Rc1 (20. Bc1 $15) 20... Qb5 $1 $17 {[%csl LRb2,LRd3] Strongly threatening ...h6.} (20... h6 21. Ne4 $15) 21. Rc7 (21. Qh5 $2 Bg6 22. Qe2 Bxd3 $19) (21. d6 $17) 21... f6 (21... Qxb2 $19 22. Rxf7 Bg6) 22. Be4 {[#]} Bxe4 {Chess con chili.} (22... Qxb2 $2 23. Bxf5 g6 24. Nxh7 $18) 23. Nxe4 {[%cal Od5d6] Black must now prevent d6!} Qxd5 (23... Qxb2 24. Qg4 Kh8 25. Qf5 $16) 24. Qf3 {[%cal Oe4f6]} Qe6 25. g4 Re7 26. Rec1 (26. Rc2 $142) 26... Rxc7 27. Rxc7 Rd8 ({Black should play} 27... Qb6 $19 28. Rc2 Qb3) 28. g5 $2 {[#] White does not recover from this.} (28. Qf5 $17 Qxf5 29. gxf5) 28... f5 $1 $19 29. Qh3 {[%cal Oe4f6] Threatening mate with Nf6+!} Qg6 {Prevents Nf6+.} 30. Ng3 Bd6 ({And not} 30... Qxg5 31. Qxf5 Qxf5 32. Nxf5 $17) 31. Rc2 Rf8 ({Weaker is} 31... Qxg5 32. Qxf5 Qxf5 33. Nxf5 $17) 32. Bc1 Nc6 33. Qg2 Qf7 {Prevents Qd5.} 34. h4 g6 {Weighted Error Value: White=0.32/Black=0.16 (very precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.28"]
[Round "6.1"]
[White "Pichot, Alan"]
[Black "Hungaski, Robert"]
[Result "1-0"]
[ECO "C82"]
[WhiteElo "2625"]
[BlackElo "2521"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,101,0,0,0,-4,0,0,0,52,49,47,45,36,36,47,17,31,-16,3,12,17,37,27,27,24,24,31,31,86,20,18,26,19,25,22,5,120,96,87,87,139,114,141,130,168,166,210,218,207,209,189,0,189,170,181,176,228,148,247,231,227,223,534,439,450,333,527,490,29974,29975,29977,29978,29997,29992,29992,29993,29993,29994,29997,29998]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O 11. Bc2 Nxf2 12. Rxf2 f6 13. Nf1 $1 {[%mdl 4] And now Be3 would win. is more profitable than 13.exf6 at the moment. C82: Open Ruy Lopez: 9 c3 without 9...Be7.} Bxf2+ 14. Kxf2 fxe5 {Hoping for ...e4.} 15. Kg1 {[%cal Oc2h7] Black must now prevent Bxh7+! The position is equal.} Qf6 (15... Qd7 $11) 16. Bg5 $14 {[%cal Bc1g5,Bg5h4,Bh4g3][%mdl 1056] White has compensation.} Qf7 17. Bh4 {Strongly threatening Ng5.} h6 {To avoid Ng5} (17... e4 18. Ng5 Qg6 19. Ne3 $18) 18. Bg3 Rad8 {[#]} 19. Qd2 $146 ({Predecessor:} 19. Qe1 e4 20. Nd4 Nxd4 21. cxd4 c5 22. dxc5 Qf6 23. Rd1 Qxb2 24. Bb3 Kh8 25. c6 {1-0 (34) Vajda,L (2480)-Naes,F (2100) Elista 1998}) 19... d4 {[%cal Od4d3]} 20. Be4 {[#]} (20. Qe2 $14) 20... dxc3 $1 21. Qxc3 Nd4 22. Nxd4 Rxd4 23. Bf3 {This bishop pair is nice.} Bd5 {[%cal Rd5f3]} 24. Nd2 Qg6 25. Re1 Qd3 {[#]} ({Better is} 25... Bxa2 $14 26. Rxe5 Rd3) 26. Bxd5+ ({Much weaker is} 26. Bxe5 $6 Qxc3 27. Bxd5+ Kh7 28. bxc3 Rxd5 $11) (26. Ne4 $1 $16) 26... Rxd5 $11 27. Qxd3 Rxd3 28. Nf3 c5 29. Rxe5 c4 (29... Rd1+ $11 {keeps the balance.} 30. Be1 Ra1) 30. Be1 $1 $16 Rd1 31. Kf2 Rb1 {[#]} (31... Rdd8 $142) 32. Re2 $1 Kf7 33. Bc3 Re8 {[#]} 34. Rd2 ({Resist} 34. Rxe8 Kxe8 35. Bxg7 b4 $16) 34... g5 (34... Re6 $142 35. h4 g6) 35. a3 $18 Re6 36. Rd7+ Ke8 37. Rd2 ({White should play} 37. Rd5 $18) 37... Rc1 $2 (37... Kf7 $1 $11 {and Black has nothing to worry.}) 38. Kg3 Re4 39. h3 Ke7 (39... Re3 $142 40. Rd6 h5) 40. Bb4+ Kf6 (40... Ke8 $16 {was worth a try.} 41. Rd6 Rc2) 41. Rd7 Rc2 42. Bc3+ Kg6 $2 (42... Ke6 {is more resistant.} 43. Rh7 Kd5 44. Rxh6 Ree2 45. Nxg5 Rxg2+ 46. Kf4 Rcf2+ 47. Nf3 Rg8 48. Rxa6 Re2) 43. Rd6+ Kh7 44. Rxa6 Ree2 (44... Re3 $142 45. Rd6 Rce2) 45. Kg4 Rxb2 (45... Rxg2+ $2 46. Kh5 $18) (45... Rxc3 $18 46. bxc3 Rxg2+ 47. Kh5 Rg3 48. Rxh6+ Kg7 49. Rg6+ Kf8 50. Rf6+ Ke8) 46. Kh5 {White mates.} Rb3 47. Bf6 g4 48. Ra7+ Kg8 {[#]} 49. Kg6 $1 Kf8 50. Nd4 gxh3 51. Ra8+ {Weighted Error Value: White=0.14 (very precise) /Black=0.60} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.28"]
[Round "6.2"]
[White "Cuenca Jimenez, Jose Fernando"]
[Black "Supi, Luis Paulo"]
[Result "1/2-1/2"]
[ECO "E71"]
[WhiteElo "2552"]
[BlackElo "2581"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,75,35,39,41,37,34,51,48,52,45,50,57,57,54,71,49,53,53,59,59,75,58,80,59,60,61,58,29,58,50,43,50,71,68,72,60,74,59,40,18,20,0,10,0,0,0,0,0,0,0,8,8,23,8,15,8,8,8,8,8,80,0,80,13,80,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 Nbd7 6. Be3 {E71: King's Indian: 4 e4 d6 5 h3.} e5 7. d5 a5 8. g4 {[%cal Bg2g4,Bg4g5][%mdl 32] White is slightly better.} Nc5 9. f3 h5 10. g5 {[#]} Nfd7 $146 ({Predecessor:} 10... Nh7 11. h4 f6 12. gxf6 Bxf6 13. Bf2 O-O 14. Qd2 Kg7 15. O-O-O Be7 16. Kb1 Rf4 {0-1 (59) Ciolacu,A (2263)-Juhasz,B (2258) Terme Catez 2021}) 11. h4 O-O 12. Nh3 Na6 13. Rb1 Nb6 14. b3 c6 {[%cal Oa5a4]} 15. Qd2 Nc5 16. Rd1 cxd5 17. cxd5 Nbd7 18. Nf2 Qe7 19. Be2 b6 20. O-O Bb7 21. Rb1 f5 22. Bb5 fxe4 23. Nfxe4 Nxe4 24. Nxe4 (24. fxe4 $5 {[%cal Rc3a4]} Nc5 25. a3 $14) 24... Nc5 25. a3 Bc8 26. b4 axb4 27. axb4 Nxe4 28. fxe4 Bh3 29. Rxf8+ ({Much worse is} 29. Bxb6 Bxf1 30. Bxf1 Rf4 $17) 29... Rxf8 30. Kh2 ({Reject} 30. Bxb6 Rf4 31. Bf2 Rxe4 $15) 30... Bd7 31. Be2 Bc8 32. Rf1 {[#] Black must now prevent Rxf8+.} ({But not} 32. Bxb6 Qb7 33. Qe3 Bg4 $15) 32... Qd7 {...Qh3+ is the strong threat.} 33. Rxf8+ Bxf8 34. Kg1 {Active counter play!} b5 (34... Qb7 $11 {remains equal.}) 35. Bf2 (35. Qc2 $16) 35... Qh3 (35... Qb7 $1 $11) 36. Bf1 ({White should try} 36. Qe3 $16 {Threatens to win with Qxh3.} Qxe3 37. Bxe3) 36... Qf3 (36... Qg4+ $11 {keeps the balance.} 37. Bg2 Bd7) 37. Bg2 (37. Qe2 $16 Qxe2 38. Bxe2) 37... Qb3 $11 38. Be1 {Weighted Error Value: White=0.15 (very precise) /Black=0.17 (very precise)} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.28"]
[Round "6.3"]
[White "Fier, Alexandr"]
[Black "Cubas, Jose Fernando"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2572"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,92,11,-8,66,63,67,75,75,41,30,51,173,91,99,95,97,86,76,90,96,93,97,90,89,70,71,71,93,93,102,81,101,103,101,109,97,86,98,86,84,82,91,91,111,103,140,146,137,113,99,89,93,92,96,98,98,98,98,99,99,99,99,68,68,60,60,60,68,68,68,68,68,68,68,69,69,69,69,67,67]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 e5 6. d4 exd4 7. cxd4 cxd4 $1 {7...cxd4 is better than 7...Nxd4.} 8. Bf4 d6 {B31: Sicilian: 2...Nc6 3 Bb5 g6.} (8... a6 $1 $11 9. Bc4 Nge7) 9. Nxd4 $14 Nge7 10. Nc3 {And now Bg5 would win. White is much more active.} O-O {White is better.} 11. Nxc6 (11. Bxc6 $5 bxc6 12. Qd2 $14) 11... bxc6 12. Bc4 Rb8 {[#]} (12... Bxc3 $14 13. bxc3 d5) 13. Bb3 $146 ({Resist} 13. Bxd6 $6 Rxb2 14. Rc1 Rb7 $16) (13. Qxd6 $18 Rxb2 14. Qa3) ({Predecessor:} 13. Bxd6 Rxb2 14. e5 Re8 15. Na4 Rb7 16. Nc5 Rb6 17. e6 Nd5 18. exf7+ Kxf7 19. Qf3+ {0-1 (35) Chatzidakis,M (2280)-Steinhagen,B (2291) Germany 2013}) 13... Ba6 $16 14. Qxd6 Bxf1 15. Qxb8 ({Reject} 15. Rxf1 Qxd6 16. Bxd6 Rb7 $15) 15... Qxb8 16. Bxb8 Rxb8 17. Kxf1 c5 {[%cal Oc5c4]} 18. Rd1 Nc6 19. Bd5 Ne7 (19... Rxb2 $2 20. Na4 Nb4 21. Nxb2 Bxb2 22. Rb1 $18) 20. Na4 Bd4 21. Bc4 Nc8 22. b3 Nb6 23. Nxb6 axb6 {[%mdl 4096] Endgame KRB-KRB} 24. a4 Kg7 25. g3 {[%cal Bg2g3,Bg3f4][%mdl 32]} Re8 26. Bd3 g5 27. f3 Kf6 28. Ke2 Kg7 29. f4 gxf4 30. gxf4 Re6 31. Kf3 Rh6 32. Rd2 Rh3+ 33. Kg4 Bc3 34. Kxh3 Bxd2 {KB-KB} 35. Kg4 f6 36. Kf5 Kf7 37. e5 fxe5 38. Kxe5 h6 {White is slightly better.} 39. Kf5 Ke7 40. Ke4 Kf6 41. Kd5 Be1 42. Kd6 Bd2 43. Kc6 Ba5 44. h4 {[%cal Bh2h4,Bh4h5][%mdl 32]} Ke6 45. Bg6 Kf6 46. h5 Ke6 {Black escapes into a draw.  Weighted Error Value: White=0.07 (flawless) /Black=0.13 (very precise)} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.28"]
[Round "6.4"]
[White "Oliveira, Silvio Eduardo"]
[Black "Delgado Ramirez, Neuris"]
[Result "0-1"]
[ECO "B67"]
[WhiteElo "2322"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,67,36,22,31,43,47,37,33,45,37,44,38,26,40,34,34,16,58,-22,-14,-87,-57,-87,-104,-85,-63,-98,-96,-97,-96,-153,-154,-265,-165,-154,-185,-174,-136,-179,-137,-142,-128,-290,-294,-298,-291,-286,-179,-1233,-1234,-2341]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 $1 {8...Bd7 is better than 8...h6.} 9. f3 Be7 10. Kb1 h6 {B67: Sicilian: Richter-Rauzer: 7...a6 8 0-0-0 Bd7, lines without 9 f4 Be7.} 11. Be3 h5 {Prevents g4.} 12. Nxc6 Bxc6 {White is slightly better.} 13. Ne2 b5 14. Nd4 Bb7 {[#]} 15. c4 $146 ({Predecessor:} 15. h4 Rc8 16. Bg5 Nd7 17. Be2 Nc5 18. Nb3 d5 19. e5 Nxb3 20. axb3 Qc7 21. Rde1 {1-0 (38) Kuhne,D (2434)-Tsenkov,L (2427) LSS email 2016}) 15... bxc4 16. Bxc4 ({Of course not} 16. Qb4 Qd7 $15) 16... O-O 17. Bb3 Nd7 {[#]} (17... a5 $11) 18. Qf2 ({White should try} 18. Bxe6 $1 $14 fxe6 19. Nxe6) 18... a5 $11 19. Qg3 (19. Bxe6 $11 {keeps the balance.} fxe6 20. Nxe6) 19... h4 20. Qh3 {[%cal Od4e6] Threatens to win with Nxe6!} Nc5 21. Bc4 Rc8 22. Qg4 {[%cal Oe4e5]} Bf6 23. Rhe1 Qe7 24. Rc1 (24. Bf1 $142) 24... Nd7 $17 25. Qh3 (25. Bb5 $17) 25... Ne5 26. Bb5 a4 27. a3 Rb8 28. Re2 {[#]} (28. g4 $17 {is a better defense.}) 28... Ba8 ({Black should play} 28... Ng6 $1 $19 29. Rec2 (29. Bxa4 d5 $17) 29... d5 30. Bxa4 dxe4) 29. Rec2 Qd8 30. Bxa4 $2 {[#] Loses the game.} (30. g4 $17) 30... Qa5 $1 $19 31. Bb3 Nd3 32. Rd1 Nc5 33. Rxc5 (33. Bd2 Qb6 34. e5 Nxb3 35. Nxb3) 33... dxc5 34. Qg3 {Weighted Error Value: White=0.51/Black=0.16 (very precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.28"]
[Round "6.5"]
[White "Aranha Filho, Alvaro Z."]
[Black "Mekhitarian, Krikor Sevag"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "2283"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,88,6,0,10,-12,6,0,0,0,0,-10,-16,-12,-17,-12,-17,-32,0,-8,0,0,0,0,0,-81,-54,-142,-150,-190,-185,-178,-191,-280,-258,-274,-287,-279,-164,-372,-289,-295,-187,-180,-173,-260,-256,-302,-288,-331,-217,-262,-257,-391,-375,-378,-362,-327,-316,-310,-160,-329,-340,-311,-302,-502,-493]} 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8. Bb5+ Bd7 9. Bxd7+ Qxd7 10. O-O O-O 11. Rb1 Nc6 12. Be3 cxd4 13. cxd4 e6 {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3.} 14. Qe2 Rac8 {[%cal Rc6d4]} 15. Rfd1 b6 {[#] The position is equal.} 16. Qb5 $146 ({Predecessor:} 16. h3 Na5 17. Ne5 Qa4 18. Rd2 Bxe5 19. dxe5 Qxe4 20. Rbd1 Qxe5 21. Qa6 Nc4 22. Qxc8 Nxd2 {½-½ (35) Doettling,F (2542)-Ni,H (2614) ICC INT 2006}) 16... Rfd8 17. Bg5 Ne7 18. Qb3 h6 19. Bh4 Qb7 {aiming for ...g5.} (19... g5 $5 20. Bg3 Qc6 $11) 20. Qe3 Re8 (20... Rc2 {feels hotter.} 21. a4 Qc7 22. a5 bxa5 23. h3 g5) 21. Rbc1 Rxc1 22. Rxc1 Nc6 23. h3 Qd7 {[%cal Rc6d4]} 24. e5 (24. Rd1 $11) 24... Rc8 25. Bf6 {Black continues to play with concentration.} ({Better is} 25. Qd2 $1 $15) 25... Nb4 $17 26. Bxg7 Kxg7 27. Rxc8 Qxc8 28. a3 (28. g3 {was necessary.}) 28... Nd5 $19 29. Qd3 Qc1+ 30. Kh2 Nf4 (30... a5 $142 {And now ...a4 would win.} 31. a4 Qc3 32. Qxc3 Nxc3) 31. Qa6 $2 {[#]} (31. Qd2 {was called for.} Qxd2 32. Nxd2) 31... Qc2 32. Qf1 Qa2 33. Qc1 g5 34. Nd2 (34. Qe3 $142) 34... Ne2 {[%csl LRc1,LRd4]} 35. Qe1 Nxd4 36. Ne4 Qd5 37. Nd6 Nc6 38. f4 (38. Kg1 $142) 38... gxf4 39. Ne8+ Kf8 40. Nf6 Qd3 41. Qc1 Nxe5 (41... Qg3+ $19 42. Kg1 {[#]} f3 $1 43. Qxh6+ Ke7 44. Nd5+ Kd7 45. Nf6+ Kc7) 42. Qc8+ $2 (42. Qxf4 $17 Qd6 43. Kh1 (43. Qxh6+ Ke7 $17)) 42... Kg7 43. Nh5+ Kh7 44. Nxf4 $2 (44. Qf8 Qg6 45. Nxf4) 44... Qc4 {Weighted Error Value: White=0.48/Black=0.22 (precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.28"]
[Round "6.6"]
[White "Lima, Darcy"]
[Black "Labussiere, Victor"]
[Result "0-1"]
[ECO "A28"]
[WhiteElo "2507"]
[BlackElo "2357"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,76,30,26,-46,-1,-16,-10,-8,0,-16,8,10,16,27,27,0,17,6,31,-20,-33,-11,0,-49,-35,-34,-16,-22,-17,-33,0,0,-8,-2,0,0,13,15,47,36,62,54,71,60,47,41,84,77,64,55,111,54,59,56,63,0,0,0,0,-8,0,0,168,10,359,74,91,0,335]} 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 d5 5. cxd5 Nxd5 6. a3 {A28: English Opening: Four Knights Variation.} (6. Bb5 $11) 6... g6 (6... Nxc3 $1 $15 7. bxc3 e4) 7. d3 Bg7 8. Qc2 O-O 9. Be2 h6 10. O-O Be6 {[#]} 11. Na4 $146 ({Predecessor:} 11. Bd2 Nce7 12. Rac1 Rc8 13. b4 Kh7 14. Rfd1 c5 15. Nxd5 cxb4 16. Nc7 b3 17. Qc3 {1-0 (59) Iliushkin,E (2304)-Raicevic,M (2370) Plovdiv 2013}) 11... Nde7 12. Bd2 a5 13. Rac1 g5 {[%cal Bg6g5,Bg5g4][%mdl 32]} 14. Rfd1 (14. Nc5 $14) 14... g4 $11 15. Ne1 b6 16. b4 (16. Nc3 $11 {feels stronger.}) 16... axb4 17. axb4 Ra7 18. b5 Na5 {[%cal Bc6a5,Ba5b7,Bb7d6][%mdl 32] ...Bb3 is the strong threat.} 19. Rb1 {To avoid Bb3} Qa8 20. Bb4 Re8 21. Nc3 Nb7 22. Rdc1 Nd6 23. Qd1 f5 24. Nc2 {[%cal Be1c2,Bc2b4,Bb4c6][%mdl 32]} h5 25. d4 $1 e4 26. Bxd6 cxd6 27. Nb4 Bf7 (27... Qb7 $14) 28. Nc6 $16 Ra3 (28... Nxc6 $2 29. bxc6 Rc8 30. Rxb6 $18) 29. Ra1 d5 ({Black should try} 29... Kh8 $14) 30. Rxa3 (30. g3 $16) 30... Qxa3 $14 31. Na4 {Pair of Knights!} f4 $1 32. Rc3 (32. Nxb6 fxe3 33. fxe3 Qxe3+ 34. Kh1 Be6 $19) (32. exf4 $14 Nf5 33. Ra1 (33. Nxb6 g3 $11)) 32... Qd6 $11 33. exf4 ({Resist} 33. Nxb6 Nf5) 33... Qxf4 34. g3 Qc7 35. Qc1 Ra8 $2 (35... Nxc6 $11 36. Rxc6 Qd8) 36. Bd1 $2 (36. Nxb6 $1 $18 Re8 37. Qg5 $1) 36... Nf5 $2 {[%mdl 8192] [#]} (36... Re8 $11) 37. Qg5 $2 (37. Ne5 $1 $18 Qd8 38. Nxf7) 37... Be6 $16 38. Qxh5 (38. Kg2 $16) 38... Qd6 $2 {[%mdl 40960] Weighted Error Value: White=0.35/Black=0.43. Loss on time!?} (38... Qf7 $1 $11 {and Black is okay.} 39. Qg5 (39. Qxg4 $2 Nxd4 40. Qg5 Rxa4 $19) 39... Qf6 40. Qxf6 (40. Qxg4 $2 Nxd4 41. Qh5 Rf8 $19) 40... Bxf6) 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.28"]
[Round "6.7"]
[White "Di Berardino, Diego Rafael"]
[Black "Villalba, Marcelo"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2480"]
[BlackElo "2258"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,87,22,18,27,7,0,12,20,81,18,24,-6,32,32,29,-4,43,33,33,33,35,35,32,14,14,16,231,7,7,7,28,13,23,22,139,0,9,10,43,0,33,15,98,93,95,101,50,0,141,125,177,95,1268,1091,852,275,1215,1189,1092,525,12838,2370,12839,12839,12839,12840,12841,12841,29984,29985,29985,29986,29994,29993,29993,29994]} 1. c4 e6 2. d4 d5 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 a6 6. O-O b5 7. Ne5 Nd5 8. b3 {E04: Open Catalan: 5 Nf3.} cxb3 9. Qxb3 Bb7 10. a4 {The position is equal.} c6 (10... Nc6 $11) 11. Nd2 (11. Qf3 Qf6 $11) (11. e4 $16 Nb6 12. Qf3) 11... Be7 $11 {[#]} 12. Ba3 $146 {[%mdl 128] White has some attack.} ({Predecessor:} 12. Bb2 Nd7 13. Nd3 O-O 14. e4 N5f6 15. Rfc1 Qb6 16. a5 Qa7 17. e5 Nd5 18. Ne4 {0-1 (41) Radashkovich,I (2425)-Zilber,I Tel Aviv 1978}) 12... O-O 13. Bxe7 Qxe7 14. Rfc1 Rc8 (14... b4 $11) 15. Ne4 Nd7 16. Nxd7 Qxd7 17. Nc5 Qc7 18. e4 {Strongly threatening axb5.} Nb6 19. e5 Nxa4 $2 (19... h6 $11 {and Black stays safe.}) 20. Nxa4 $2 (20. Nxb7 $18 Qxb7 21. Rxa4) 20... bxa4 21. Rxa4 Ra7 22. Rc5 {[%mdl 1024] White has compensation.} g6 23. h4 {[%cal Oh4h5]} h5 (23... Rb8 $11) 24. Be4 {White is much more active.} (24. d5 $1 $16 {[%cal Rd5e6]} exd5 25. Bxd5) 24... Ba8 25. Qd3 {[%cal Oe4g6]} Kg7 26. Qc3 (26. Rxa6 $14 Rd8 27. Bxc6) 26... Kg8 27. Bf3 {[%cal Od4d5]} Qd8 (27... Rd8 $11) 28. d5 $1 $16 exd5 {[#]} 29. Bxd5 $1 {[%mdl 64] Threatens to win with e6. Pin} Rb8 30. Bf3 (30. Bb3 $14) 30... Rab7 (30... Qe7 $11 {remains equal.}) 31. e6 $1 {aiming for Rg5.} (31. Rxa6 Rb3 32. Rxa8 Rxc3 33. Rxb8 Qxb8 $17) (31. Bxc6 $2 Rb1+ 32. Kh2 Qd1 $19) 31... fxe6 {[#]} (31... Qd6 $16) 32. Rf4 (32. Rxa6 Rb3 33. Rxa8 (33. Qc2 Rxf3 34. Qxg6+ Kf8 $15) 33... Rxc3 34. Rxb8 Qxb8 $17) (32. Bxh5 $1 $18 {[%mdl 512]} gxh5 33. Rg5+ Qxg5 34. hxg5) 32... Rf7 $2 {[%mdl 8192] [#]} (32... Rg7 $16) 33. Rg5 $1 $18 Rg7 34. Qc2 $2 (34. Rf6 Rb3 35. Qe5 (35. Qxb3 Qxf6 36. Qd3 Bb7 $16) 35... Rb1+ 36. Kh2) 34... Qe8 (34... e5 35. Rxe5 c5 36. Bxa8 (36. Rxc5 Bxf3 37. Rxf3 a5 $16) 36... Rxa8) 35. Rf6 {[%cal Rf6g6]} Rbb7 36. Rfxg6 (36. Be4 $142 Rbe7 37. Rfxg6) 36... Qf8 37. Be4 (37. Bxh5 $142 Qd8 38. Rxe6) 37... Rxg6 38. Rxg6+ Rg7 39. Rxe6 {Threatening mate with Qb3.} Re7 40. Rg6+ Rg7 41. Qb3+ {White mates.} Qf7 42. Re6 {[%cal Re6e8]} Kh8 43. Rh6+ Kg8 44. Qb8+ {Weighted Error Value: White=0.48/Black=0.73} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.28"]
[Round "6.8"]
[White "Luz, Arthur Nader"]
[Black "Matsuura, Everaldo"]
[Result "0-1"]
[ECO "B25"]
[WhiteElo "2169"]
[BlackElo "2441"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,54,6,13,-7,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,13,-6,-6,-171,-152,-178,-173,-183,-177,-208,-192,-380,-238,-239,-245,-245,-226,-271,-279,-1007,-979]} 1. e4 c5 2. Nc3 Nc6 3. Nge2 d6 4. g3 g6 5. Bg2 Bg7 6. d3 Rb8 7. a3 {[%cal Ob2b4] B25: Closed Sicilian: 3 g3, lines without early Be3.} e6 8. O-O Nge7 9. Rb1 {The position is equal.} b5 10. b4 cxb4 11. axb4 O-O {[#]} 12. Be3 $146 ({Predecessor:} 12. d4 a5 13. bxa5 b4 14. Na4 Qxa5 15. Nb2 Ba6 16. d5 exd5 17. exd5 Ne5 18. Re1 {0-1 (29) Hansen,V (1888)-Levushkina,E (2310) Helsingor 2014}) 12... a5 13. Na2 axb4 14. Nxb4 Nxb4 15. Rxb4 Nc6 16. Rb3 b4 17. Qd2 e5 18. d4 Ba6 19. dxe5 {[#] Now White is beyond hope.} (19. d5 $11 {and White has nothing to worry.} Na5 20. Rxb4) 19... dxe5 $19 20. Qxd8 Rfxd8 ({Weaker is} 20... Rbxd8 21. Bf3 $15) 21. Re1 Na5 {[%cal Bc6a5,Ba5c4,Bc4a3,Ba3b1][%mdl 32]} 22. Rbb1 Nc4 23. Bc1 $2 (23. Bf1) 23... Bf8 {Hoping for ...Na3.} 24. Bg5 Rdc8 25. Bh3 Rc7 {[#] ...Na3 is the strong threat.} 26. Rb3 Na3 ({Don't go for} 26... Nd6 $2 27. Nc1 $19) 27. Reb1 $2 (27. Bf1) 27... Nxb1 {Weighted Error Value: White=0.75/Black=0.11 (very precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.28"]
[Round "6.9"]
[White "Molina, Roberto Junio Brito"]
[Black "Alboredo, Julia"]
[Result "1-0"]
[ECO "D76"]
[WhiteElo "2420"]
[BlackElo "2200"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,53,16,0,2,15,22,7,24,28,22,19,13,0,51,0,0,0,112,68,143,124,254,258,289,120,288,276,254,262,313,254,448,441,427,446,591,585]} 1. d4 Nf6 2. c4 g6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. Nf3 Bg7 7. O-O Nc6 8. e3 O-O 9. Nc3 Re8 10. d5 Nb4 {[%cal Rb4d5] D76: Fianchetto Grünfeld: Main Line with 7...Nb6.} 11. e4 c6 {[%cal Rc6d5]} 12. a3 Na6 {The position is equal.} 13. dxc6 Qxd1 14. Rxd1 bxc6 15. Nd4 Bb7 (15... Bxd4 $11 16. Rxd4 Nc5) 16. e5 ({White should try} 16. Nb3 $14) 16... Bxe5 $11 17. Nxc6 {[#]} Bg7 $146 (17... Bxc3 $11 18. bxc3 Nb8 19. Nxb8 Raxb8) ({Predecessor:} 17... Bxc3 18. bxc3 Nb8 19. Nb4 Bxg2 20. Kxg2 Rc8 21. Be3 Nc4 22. Bh6 f6 23. h4 Kf7 {½-½ (31) Heemskerk,W (2285)-Wantola,I (2335) Leiden 2011}) 18. Bg5 ({White should play} 18. Nb5 $16) 18... f6 (18... Bxc3 $14 19. bxc3 f6) 19. Be3 {White is much more active.} Kf8 (19... Nb8 $16) 20. Nb5 $18 {Threatens to win with Rac1.} f5 21. Bd4 (21. Nbxa7 Nc4 $16) (21. Ncxa7 Bxg2 22. Kxg2 Nc4 $14) (21. Rac1 $18 {has better winning chances.}) 21... Na4 $2 {[#]} (21... Bxd4 $16 {keeps fighting.} 22. Ncxd4 Bxg2) 22. Bxg7+ Kxg7 23. b4 Nb6 24. Rac1 ({Less strong is} 24. Nbxa7 Nb8 25. b5 e5 26. Nxb8 Bxg2 $16) ({But not} 24. Ncxa7 $6 Bxg2 25. Kxg2 Rad8 26. Rxd8 Rxd8 $18) 24... Nc8 $2 (24... Rac8 {might work better.} 25. Nbxa7 Ra8) 25. Rd7 {White is clearly winning.} Bxc6 26. Bxc6 ({Not} 26. Rxc6 Nb8 $18) 26... Nb8 27. Nc7 {Weighted Error Value: White=0.24 (precise) /Black=0.67} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.28"]
[Round "6.10"]
[White "Languidey, Simon Alejandro"]
[Black "De Borba, Gabriel"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2403"]
[BlackElo "2149"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,55,92,94,81,41,30,-1,65,81,64,62,55,48,63,33,62,58,145,57,138,139,129,125,155,170,145,156,201,216,219,223,241,215,306,262,298,284,405,408,471,453,491,448]} 1. e4 c5 2. Nc3 e6 3. Nge2 d6 4. g3 Nc6 5. Bg2 Nge7 6. O-O g6 7. d4 cxd4 8. Nxd4 a6 {To avoid Ndb5. B23: Closed Sicilian: Lines without g3.} 9. Nb3 Bg7 {[#]} 10. Bf4 $146 ({Predecessor:} 10. a4 O-O 11. a5 Ne5 12. Qe2 Qc7 13. Rd1 Rd8 14. f4 Nc4 15. Ra4 b5 16. axb6 Nxb6 17. Ra2 Rb8 18. Kh1 {0-1 (34) Galego,L (2479)-Miezis,N (2525) Reykjavik 2004}) 10... e5 (10... Ne5 $1 $11) 11. Bg5 Be6 12. Qd2 Qc7 13. Nd5 Bxd5 14. exd5 Nb8 15. c4 $36 {[%cal Oc4c5][%mdl 2048] aiming for c5! White is more active.} b6 {[#] To avoid c5} (15... Nd7 $1 $14) 16. Rac1 (16. f4 $1 $16 {[%cal Rf4e5]}) 16... f6 {[#]} (16... h6 $14 17. Be3 Nd7) 17. Be3 $1 $16 {[%cal Oc4c5] c5! is the strong threat. White is much more active. This bishop pair is nice.} Nd7 {To avoid c5} 18. c5 bxc5 {[#]} 19. Nxc5 $1 {[%mdl 512]} Nxc5 (19... dxc5 $2 20. d6 Qb6 21. Bxa8 $18) 20. b4 Nb3 (20... O-O $16 21. bxc5 Rfc8) 21. Rxc7 $18 Nxd2 22. Bxd2 Kf7 23. Rfc1 {[%cal Bf1c1,Bc1c7,Bc7c6][%mdl 32]} Rhc8 (23... Rhd8 {is a better defense.} 24. a4 Kf8) 24. Rxc8 Nxc8 25. Rc7+ Kg8 (25... Ne7 $142 26. Bf1 Kf8) 26. Bf1 Bf8 27. Rc6 a5 28. b5 {Weighted Error Value: White=0.14 (very precise) /Black=0.41} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.29"]
[Round "7.1"]
[White "Delgado Ramirez, Neuris"]
[Black "Pichot, Alan"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "2614"]
[BlackElo "2625"]
[Annotator "TA"]
[PlyCount "34"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,34,9,0,0,0,20,0,21,14,19,7,15,7,9,15,14,11,21,0,40]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Bd3 d5 7. exd5 cxd5 8. O-O Be7 9. c4 {The position is equal.} d4 {C45: Scotch Game.} 10. Bg5 O-O 11. Nd2 h6 12. Bxf6 Bxf6 13. b4 Re8 14. Re1 {[#]} Rxe1+ $146 ({Predecessor:} 14... g6 15. Rxe8+ Qxe8 16. Qf3 {½-½ (16) Olmedo,A-Marcos Nozar,J (2137) ICCF email 2021}) 15. Qxe1 Bb7 {Inhibits Qe4.} 16. Nb3 Qf8 17. Qd2 Bg5 {An uneventful encounter.  Weighted Error Value: White=0.03 (flawless) /Black=0.05 (flawless)} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.29"]
[Round "7.4"]
[White "Cubas, Jose Fernando"]
[Black "Cuenca Jimenez, Jose Fernando"]
[Result "1/2-1/2"]
[ECO "B32"]
[WhiteElo "2469"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "154"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,154,18,22,31,19,15,25,21,19,2,10,10,9,16,13,16,19,18,22,18,0,0,0,19,5,38,42,39,37,31,49,35,47,53,55,41,30,24,28,41,31,35,0,106,54,50,50,256,241,240,234,258,256,205,0,0,0,0,0,0,0,0,0,0,0,18,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,52,-26,-26,-87,-86,-113,-113,-113,-113,-113,-8,-8,0,0,0,0,0,0,0,0,0,-15,0,-6,-6,-6,-6,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,0,-22,-22]} 1. e4 c5 2. Nf3 {[%cal Bg1f3,Bf3d4,Bd4b5,Bb5a3,Ba3c4][%mdl 32]} Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 Be6 8. Nc4 Rb8 {B32: Sicilian: Löwenthal and Kalashnikov Variations.} 9. a4 Nb4 {9...Nf6 is more advanced technology.} 10. Be2 Nf6 {White has an edge.} 11. Bg5 d5 12. exd5 Nbxd5 13. Nxd5 Qxd5 {[#]} 14. O-O $146 ({Predecessor:} 14. Bxf6 gxf6 15. Qxd5 Bxd5 16. Ne3 Be6 17. Bd3 Bc5 18. Ke2 Bxe3 19. Kxe3 Ke7 20. g3 {½-½ (72) Papadiamandis,E (2134)-Cuenca Jimenez,J (2528) Sitges 2020}) 14... Rc8 15. Nb6 {[%csl LRc8,LRd5]} Qxd1 16. Bxd1 Rc7 17. Re1 Bd6 18. c3 Nd7 19. a5 {Black should prevent Ba4.} O-O (19... f6 $5 {[%cal Rf6g5]}) 20. Nxd7 Bxd7 21. Bb3 Bc6 22. Rad1 Rd7 23. Be3 Bc7 24. Rxd7 Bxd7 25. Bb6 Bxb6 26. axb6 $11 {[%mdl 4096] Endgame KRB-KRB} Rd8 27. Bd5 Bc8 28. c4 {[%cal Of2f4,Bc3c4,Bc4c5][%mdl 32]} Rd6 (28... Kf8 $1 $11) 29. Rxe5 {White is more active.} ({Better is} 29. Bf3 $16) 29... Be6 $14 30. f4 $1 {Strongly threatening f5.} g6 {To avoid f5} (30... Rxb6 $2 31. f5 Bd7 32. c5 (32. Re7 Rd6 $16) 32... Rxb2 33. Re7 Rb1+ 34. Kf2 $18) (30... Kf8 $1 $14) 31. Bxe6 $18 (31. Bxb7 Rxb6 32. Bd5 Bxd5 33. Rxd5 (33. cxd5 Rxb2 34. Re8+ Kg7 $11) 33... Rxb2 $11) 31... fxe6 {KR-KR} 32. c5 Rd1+ 33. Kf2 {[%cal Oc5c6]} Kf7 34. Re2 {Prevents Rd2.} (34. Ke3 $1 $18) 34... Rd4 $11 35. Kf3 Rc4 36. Re5 Rb4 37. Re2 Rc4 38. Re5 a5 39. g4 Kf6 40. b3 Rc3+ 41. Ke4 Rxb3 42. Kd4 {[%cal Oc5c6]} Rb4+ 43. Kc3 Rxf4 44. Re2 {[%cal Oc5c6]} Ke7 $1 (44... Rxg4 $2 45. c6 bxc6 46. Rb2 $18) 45. c6 bxc6 (45... Rf3+ $2 46. Kc4 bxc6 47. b7 $18) 46. Rb2 {Inhibits Rb4. Black must now prevent b7.} Rf8 (46... Rxg4 $2 47. b7 Rg5 48. b8=Q $18) 47. Kc4 {b7 is the strong threat.} ({Not} 47. b7 $2 Rb8 48. Rb6 Kd6 $19) 47... Kd7 {aiming for ...e5.} 48. Kc5 Kc8 {And now ...Kb7 would win.} 49. Kxc6 Rf4 ({Black should try} 49... Kb8 $11) 50. Kb5 (50. Re2 $14 Rf3 51. Rxe6 Rc3+ 52. Kb5 Rb3+ 53. Ka4 (53. Kxa5 Ra3+ 54. Kb4 Rh3 $11)) 50... Kb7 {[%cal Of4b4] Threatens to win with ...Rb4+!} (50... Rxg4 $2 51. Ka6 Rf4 52. Ka7 $18) 51. Rd2 {[#]} (51. Kxa5 $11 Rxg4 52. Re2) 51... Rb4+ $1 $17 (51... Rxg4 $2 52. Rd7+ Kc8 53. Rxh7 $18) 52. Kxa5 {Intending Rd7+ and mate.} Rxb6 53. Rd7+ Kc6 54. Rxh7 {[#]} Rb2 (54... Rb8 $1 $17 {Hoping for ...e5.} 55. Rg7 Kc5 56. Rc7+ Kd5 57. Rd7+ Ke5) 55. Rg7 $11 {The position is equal.} Rb5+ 56. Ka4 Rg5 57. h3 Kd5 58. Kb4 Kd4 59. Rd7+ Ke4 60. Re7 Re5 61. h4 Kd5 62. Kc3 Re4 63. h5 Rxg4 64. hxg6 Rxg6 65. Kd3 Rg3+ 66. Ke2 e5 67. Ra7 Ke4 68. Ra4+ Kf5 69. Ra8 $1 Kf4 70. Rf8+ Ke4 71. Ra8 Rg2+ 72. Ke1 Kf4 73. Ra3 e4 74. Rb3 $1 Ra2 75. Rc3 Ke5 76. Rb3 Kd4 77. Rh3 Rb2 {Weighted Error Value: White=0.13 (very precise) /Black=0.17 (very precise)} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.29"]
[Round "8.1"]
[White "Pichot, Alan"]
[Black "Di Berardino, Diego Rafael"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2625"]
[BlackElo "2480"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,59,25,4,15,0,14,9,15,0,0,0,0,-15,0,-25,23,29,60,0,0,0,0,0,0,0,35,0,0,0,0,0,0,0,0,-8,-13,-87,-67,-83,0,0,0,0,0,0,213,-29988]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. O-O d6 6. c3 h6 7. Nbd2 O-O 8. h3 Bb6 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 9. b4 a5 10. b5 Ne7 {The position is equal.} 11. Bb3 c6 12. a4 Ng6 13. d4 exd4 {[#]} 14. Nxd4 $146 ({Predecessor:} 14. cxd4 d5 15. Re1 dxe4 16. Nxe4 Nxe4 17. Rxe4 Bf5 18. Re1 Qd7 19. Ba3 Rfe8 20. Ne5 Nxe5 21. dxe5 {1-0 (31) Boronyak,A (2286)-Papp,Z (2171) Zalakaros 2000}) 14... c5 (14... Re8 $142) 15. Ne2 Re8 16. Ng3 (16. c4 $14) 16... d5 $11 17. exd5 Nxd5 {[%cal Bf6d5,Bd5b4,Bb4d3][%mdl 32]} 18. Nde4 Be6 {[%cal Oc5c4]} 19. c4 Nb4 20. Be3 Nd3 21. Qh5 {[#] Prevents f5. Rad1 is the strong threat.} Qe7 22. Rad1 Rad8 23. Qe2 Ngf4 24. Qf3 Bc7 25. b6 (25. Rd2 $11) 25... Bb8 26. Rd2 {[#]} Bxh3 27. Bxf4 Nxf4 28. gxh3 Nxh3+ 29. Kg2 $1 Qh4 (29... Rxd2 $11 {and Black is okay.} 30. Nxd2 Qh4) 30. Kh2 $4 {[%mdl 40960] Weighted Error Value: White=0.14 (very precise) /Black=0.30. An unexpected result.} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.29"]
[Round "8.2"]
[White "Rodriguez Vila, Andres"]
[Black "Delgado Ramirez, Neuris"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2473"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,120,13,15,24,15,62,62,56,56,82,71,108,25,58,24,26,5,15,-8,52,52,70,0,34,32,96,87,85,101,87,94,189,183,184,74,74,77,80,80,82,73,76,79,79,70,84,0,0,0,0,0,40,40,46,43,87,88,88,88,95,40,44,40,40,40,40,40,40,40,103,94,94,94,103,103,110,110,110,110,110,110,110,110,110,110,110,89,89,89,89,89,89,89,89,89,89,89,89,22,22,22,22,22,22,14,29987]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Be7 8. Bc4 O-O 9. O-O Bg4 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 10. h3 Bh5 (10... Be6 $11 11. Bb3 Nc6) 11. g4 $14 Bg6 {White is slightly better.} 12. Nh4 $1 b5 (12... Bxe4 $2 13. g5 $18) 13. Bb3 Nbd7 (13... Bxe4 $2 14. Nxe4 Nxe4 15. Nf5 $18) 14. Nf5 ({White should try} 14. Nxg6 $16 hxg6 15. g5) 14... Nc5 {[#]} 15. Qf3 $146 ({Predecessor:} 15. Nd5 Bxf5 16. exf5 Nxd5 17. Bxd5 Rc8 18. Qd2 h6 19. Rad1 Bg5 20. Bxg5 Qxg5 21. Qxg5 hxg5 {1-0 (60) Korneev,O (2602)-Chernobay,A (2502) Moscow 2012}) 15... Nxb3 16. axb3 (16. Nxe7+ Qxe7 17. axb3 Qb7 $17) (16. cxb3 $5 {[%cal Rf5e7]} b4 17. Na4 $11) 16... b4 17. Ne2 (17. Na4 $5 {[%cal Ra4b6]}) 17... d5 (17... Bxf5 $11 18. Qxf5 g6) 18. Rfd1 $1 Bxf5 19. exf5 ({Better is} 19. Qxf5 $14 Qc8 20. Qxe5) 19... d4 20. c3 Rc8 (20... Re8 $14) 21. cxd4 $16 e4 22. Qg2 Rc2 {[%csl LRb2,LRe2]} 23. Ng3 {[%cal Od4d5] Threatens to win with d5!} Rxb2 (23... Nd5 $16 {was called for.}) 24. d5 $1 $18 (24. Rxa6 Nd5 25. Bc1 (25. Qxe4 Nc3 $17) 25... Rxb3 $11) 24... Rxb3 {[#]} 25. d6 (25. g5 $1 $18 {[%cal Rg5f6] is the precise move to win.} Nxd5 26. f6 (26. Qxe4 Rxe3 27. fxe3 Qc7 $11)) 25... Bxd6 $16 {[%cal Be7d6,Bd6f4,Bf4e3][%mdl 32]} 26. g5 Ne8 {[%cal Ob3e3]} 27. Nxe4 Rxe3 28. fxe3 Qb6 29. Qe2 a5 30. Rd5 Bf4 31. Rdxa5 {White is much more active. Black has bad knights.} ({Worse is} 31. Raxa5 Bxe3+ 32. Kg2 Nc7 $17) (31. Kg2 $16 Bxe3 32. Qc4 (32. Raxa5 Nc7 $17) (32. Rdxa5 b3 $11)) 31... Bxe3+ $11 32. Kg2 {Hoping for Ra6.} b3 33. Qb5 {Qxb6 is the strong threat.} Nd6 (33... Qd4 {looks sharper.} 34. R5a4 Qb2+ 35. Kf3 Nd6 36. Qe2 Qxe2+ 37. Kxe2 Nxe4 38. Rxe4 b2) 34. Qxb6 Bxb6 35. Ra6 (35. R5a4 {seems wilder.} Nxf5 36. Rb1 Nd4 37. Rb4 Ba7 38. Rc1) 35... Nxe4 (35... b2 $14 {is superior.} 36. Rh1 (36. Nxd6 bxa1=R 37. Rxa1 f6 $11) 36... Nc8) 36. Rxb6 $16 {Black must now prevent Ra4.} Nxg5 37. Rxb3 $14 {[%mdl 4096] Endgame KRR-KRN} Ne4 38. Rba3 (38. Re3 $16 Nd6 39. f6) 38... g6 $1 39. Kf3 Nf6 40. Kf4 Kg7 41. Ra8 Nh5+ 42. Kg5 h6+ (42... f6+ $14 43. Kg4 Rxa8 44. Rxa8 Kf7) 43. Kh4 Rxa8 44. Rxa8 $16 {KR-KN} Nf6 {[%cal Bh5f6,Bf6e4,Be4g5,Bg5e6,Be6g7,Bg7f5,Bf5e7,Be7g6][%mdl 32]} 45. fxg6 Kxg6 46. Kg3 Ne4+ 47. Kf4 Ng5 48. h4 Ne6+ 49. Kg3 Ng7 50. Ra6+ f6 51. Kg4 h5+ 52. Kf4 Nf5 53. Ra2 {White threatens Rg2+ and mate.} Ne7 54. Ke4 Kh6 55. Rf2 Kg6 56. Rf4 Kf7 {[#]} 57. Kd3 (57. Kf3 $1 $16) 57... Ng6 $11 {The position is equal.} 58. Ra4 f5 59. Ke3 Kf6 60. Ra6+ Ke5 $2 {[%mdl 40960] Weighted Error Value: White=0.15 (very precise) /Black=0.12 (very precise) . An unexpected result.} (60... Kf7 $11) 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.29"]
[Round "8.3"]
[White "Bachmann, Axel"]
[Black "Hungaski, Robert"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2594"]
[BlackElo "2521"]
[Annotator "TA"]
[PlyCount "124"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,124,-19,-1,18,17,31,31,47,33,46,41,35,22,41,4,2,7,7,-4,-3,-2,77,-12,0,0,0,0,0,0,0,0,0,-43,-37,-55,-62,-51,-59,-89,-89,-89,-85,-86,-77,-119,-95,-106,-61,-122,-122,-119,-122,-145,-107,-286,0,-99,0,-111,0,-232,-227,-222,-222,-302,-302,-302,-302,-295,-287,-349,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O c5 5. b3 Nc6 6. Bb2 Be7 7. d4 O-O 8. Nbd2 cxd4 9. Nxd4 Qb6 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 10. e3 Rd8 11. c4 a5 {[%cal Oa5a4] [#] White is slightly better.} 12. a3 $146 ({Predecessor:} 12. cxd5 exd5 13. Qe2 a4 14. Qb5 Qxb5 15. Nxb5 a3 16. Bc3 Bf5 17. Rfc1 Nb4 18. Bxb4 Bxb4 {½-½ (48) Faibisovich,V (2410)-Votava,J (2545) Pardubice 1996}) 12... Bd7 13. cxd5 exd5 14. Qb1 Bf8 15. Nxc6 (15. Rd1 {keeps more tension.} Rac8 16. Nf5 Ne7 17. Bd4 Qe6 18. Nxe7+ Bxe7 19. Qb2) 15... bxc6 16. Bxf6 gxf6 17. Qd1 Be6 18. Qh5 c5 (18... Qc7 $11) 19. Bh3 ({Better is} 19. e4 $1 $16 {[%cal Re4d5]}) 19... a4 20. bxa4 Bxh3 21. Qxh3 Rxa4 22. Rfd1 Qe6 $36 {[%mdl 2048] Black is pushing.} 23. Qf1 Rda8 24. Qd3 (24. Nb1 $11 {feels stronger.}) 24... c4 $15 25. Qc2 Rxa3 26. Rxa3 Rxa3 27. Nb1 Ra5 28. Nc3 Bd6 $1 29. e4 dxe4 30. Nxe4 (30. Qxe4 $142 Bb4 31. Qd4) 30... Be7 31. Rd4 Qh3 (31... Ra1+ $17 32. Kg2 f5) 32. Nd2 (32. Qd1 $15) 32... Ra1+ $17 33. Nb1 {Rh4 is the strong threat.} Qe6 $1 {Strongly threatening ...Qe1+.} 34. Kg2 Qc6+ 35. Kh3 $2 (35. f3 $17) 35... Qe6+ $2 (35... Qc8+ $19 {is more deadly.} 36. Rg4+ Kh8 37. Qxc4 Qxc4 38. Rxc4 Rxb1) 36. Kg2 $1 Qc6+ (36... f5 $1 $17 {White must now prevent ...Qb6.} 37. Nc3 Bf6) 37. f3 {[#]} (37. Kh3 $1 $11 {was the only way to keep the balance.}) 37... Qb6 ({Black should play} 37... f5 $1 $17 {And now ...Qb6 would win.} 38. Nc3 Bf6) 38. Rg4+ $2 (38. Qxc4 $11 f5 39. Nd2) 38... Kh8 $19 39. Qxc4 h5 ({Inferior is} 39... Rxb1 40. Qxf7 Rb2+ 41. Kh3 Rxh2+ 42. Kxh2 Qf2+ 43. Kh3 Qf1+ 44. Kh2 Qf2+ 45. Kh3 Qf1+ 46. Kh2 Qf2+ $11) 40. Qc8+ Bd8 41. Rh4 Qxb1 {[%csl Ga1][%cal Rb1f1]} ({Weaker is} 41... Rxb1 42. Rxh5+ Kg8 43. Qg4+ Kf8 44. Rh8+ Ke7 45. Qe4+ Kd7 46. Qd3+ Ke7 {[#]} 47. Rxd8 $1 (47. Qe4+ Kd7 $14) 47... Rb2+ 48. Kh3 Qe6+ 49. g4 $11) 42. Rxh5+ Kg7 {[%csl Ga1][%cal Rb1f1]} 43. Qc4 {To avoid Qf1+} f5 $2 (43... Ra2+ $19 44. Kh3 f5 45. Rh7+ Kxh7 46. Qxf7+ Kh6 47. Qf8+ Kg6 48. Qg8+ Kf6 49. Qxd8+ Ke5 50. Qc7+ Kd4 51. Qf4+ Kd5) 44. Qd4+ $11 {The position is equal.} Kg6 {[%csl Ga1][%cal Rb1f1]} (44... Bf6 {is a self mate.} 45. Rg5+ Kf8 46. Qd6+ Be7 47. Qh6+ Ke8 48. Qc6+ Kd8 49. Rg8+) 45. Rh6+ $1 {[%mdl 64] Decoy} Kxh6 {[%csl Ga1][%cal Rb1f1]} 46. Qh8+ Kg6 {[%csl Ga1][%cal Rb1f1]} 47. Qg8+ Kf6 {[%csl Ga1][%cal Rb1f1]} 48. Qxd8+ Ke6 {[%csl Ga1][%cal Rb1f1]} 49. Qe8+ Kd6 {[%csl Ga1][%cal Rb1f1]} 50. Qd8+ Kc5 {[%csl Ga1][%cal Rb1f1]} 51. Qc7+ Kd4 {[%csl Ga1][%cal Rb1f1]} 52. Qd6+ $1 Kc4 {[%csl Ga1][%cal Rb1f1]} 53. Qc6+ Kd3 {[%csl Ga1][%cal Rb1f1]} 54. Qd5+ Ke2 {[%csl Ga1,Ge2][%cal Rb1f1]} 55. Qe5+ Kd1 56. Qd4+ Kc1 57. Qf4+ Kb2 {[%csl Ga1][%cal Rb1f1]} 58. Qb4+ $1 Kc2 {[%csl Ga1][%cal Rb1f1]} 59. Qc4+ Kd2 {( -> ...Qg1+)} 60. Qd4+ Kc1 61. Qf4+ Kc2 {[%csl Ga1][%cal Rb1f1]} 62. Qc4+ Kd2 {White happily takes the draw.  Weighted Error Value: White=0.21 (precise) /Black=0.22 (precise)} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.29"]
[Round "8.4"]
[White "Molina, Roberto Junio Brito"]
[Black "Supi, Luis Paulo"]
[Result "1/2-1/2"]
[ECO "A65"]
[WhiteElo "2420"]
[BlackElo "2581"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,123,6,19,28,30,18,23,17,18,22,9,7,9,16,10,1,0,-29,0,0,4,-31,-32,-41,-39,-36,-30,-35,19,22,24,0,0,-53,0,-81,-62,-101,-54,-181,-181,-168,-157,-152,-61,-74,-70,-72,-61,-79,-59,-68,-60,-135,-138,-138,-99,-192,-175,-156,-116,-178,-124,-158,-79,-109,-127,-185,-181,-370,-235,-372,-327,-282,-207,-1511,-1510,-29951,-411,-406,-403,-360,-93,-343,-359,-347,-346,-542,-252,-550,-525,-309,-72,-88,-81,-127,0,-39,-19,-22,8,8,15,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c5 7. d5 e6 8. Qd2 exd5 9. cxd5 a6 10. a4 Re8 11. Be2 {A65: Modern Benoni: 6 e4.} b6 {11...h5 is a critical line.} 12. Bg5 {[#]} Qc7 $146 ({Predecessor:} 12... Qe7 13. Bd1 Nbd7 14. Nh3 h6 15. Bf4 g5 16. Bg3 Ne5 17. Nf2 Nh5 18. Be2 f5 {0-1 (37) Belous,M (2366)-Mihok,O (2516) Budapest 2017}) 13. Rc1 {White has an edge.} h5 14. b3 Nh7 15. Be3 Qe7 16. Bd3 Nd7 17. Nge2 Ne5 18. Bb1 Rb8 (18... b5 $5) 19. O-O b5 20. axb5 axb5 21. h3 Ba6 22. Rfe1 b4 23. Na4 Bxe2 (23... Nd7 $15) 24. Rxe2 $11 g5 25. Rf1 c4 {[%cal Bc5c4,Bc4c3][%mdl 32]} 26. Bc2 ({White should play} 26. f4 $11 c3 27. Qc1 gxf4 28. Rxf4) 26... h4 (26... c3 $15 27. Qc1 Ng6) 27. Nb6 (27. Qd1 $11 {keeps the balance.}) 27... c3 $17 28. Qe1 Ng6 (28... Nf6 $17 {Threatens to win with ...Nh5.} 29. Qf2 Nh5) 29. Qf2 (29. Nc4 $15) 29... Be5 $1 $19 {White must now prevent ...Bg3.} 30. Ra1 Bg3 $1 31. Qf1 Bf4 (31... Nf4 $17 32. Bxf4 Bxf4) 32. Bd4 Be5 33. Be3 Nf6 34. Nc4 Nh5 35. Ra7 Qf6 $36 {[%mdl 2048] Black has the initiative.} 36. Nxe5 (36. Qd1 $15) 36... Qxe5 $17 37. Re1 Ngf4 $1 38. Qf2 (38. Rd1 $17 Ng3 39. Qc4) 38... Ng3 $19 39. Bxf4 gxf4 40. Bd3 {[#]} (40. Rea1 $17) 40... Ra8 ({Better is} 40... Nf5 $1 $19 {[%mdl 512]} 41. Ra6 (41. Rc1 Ne3) 41... Qd4) 41. Rb7 Reb8 (41... Rec8 $142 $1 {[%cal Oc3c2] Hoping for ...c2!} 42. Bc2 Rcb8 43. Rxb8+ Rxb8) 42. Rxb8+ $17 Rxb8 43. Kh2 (43. Ra1 $17) 43... Ra8 $19 44. Bc4 $2 (44. Qb6 c2 45. Qb7 (45. Bxc2 Qc3 $11)) 44... Kg7 {aiming for ...Ra3.} 45. Rc1 (45. Bd3 $142 Ra3 46. Bc4) 45... Ra3 46. Re1 Ra5 47. Qb6 $2 (47. Rg1) 47... Ra2 48. Qxb4 {[#]} Nf5 $1 {[%mdl 512]} 49. Rc1 Ne3 50. Qxc3 Rxg2+ 51. Kh1 Kf6 {And now ...Rf2 would win.} 52. Qxe5+ Kxe5 {[%mdl 4096] Endgame KRB-KRN} 53. b4 (53. Re1 $142 Rg3 54. Be2) 53... Rb2 (53... Rf2 $142 54. Kg1 Rxf3) 54. b5 $2 (54. Ba6) 54... Kd4 55. Bf1 f6 $2 (55... Nxf1 $19 {and Black stays clearly on top.} 56. Rxf1 Ke3) 56. Kg1 $17 {[#]} Ke5 $1 57. Bd3 {[#]} (57. Ra1 $142) 57... Kd4 (57... Rg2+ $1 $17 58. Kh1 Kd4) 58. Bf1 $15 f5 59. exf5 {The position is equal.} Kxd5 60. Bd3 {Threatening Rb1.} Ke5 $1 61. Rc8 Nd5 62. Re8+ {And White is the lucky defender.  Weighted Error Value: White=0.66/Black=0.36} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.29"]
[Round "8.5"]
[White "Fier, Alexandr"]
[Black "Filgueiras, Nathan Felipe"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2572"]
[BlackElo "2309"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,84,8,4,16,22,14,38,8,3,20,14,0,0,-39,-41,-43,-50,-56,-29,-89,-46,-56,-17,-75,0,0,0,0,0,0,0,0,0,0,0,-41,-34,-62,-27,-54,-29,-65,0,-25,0,0,97,97,436,518,495,506,371,87,652,560,515,-16,-23,-807,-798,-748,-736,-660,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nc3 Nc6 3. Nge2 Nf6 4. g3 h5 5. d4 cxd4 6. Nxd4 {[#] B23: Closed Sicilian: Lines without g3.} h4 $146 ({Predecessor:} 6... d6 7. Bg2 Bg4 8. Qd2 Rc8 9. h3 Bd7 10. f4 e6 11. Nf3 Qb6 12. Qf2 Qxf2+ 13. Kxf2 {0-1 (58) Skvortsov,A (2128)-Adly,A (2611) Chess.com INT 2019}) 7. Bg2 {[%cal Bf1g2,Bg2f3,Bf3e2,Be2d3][%mdl 32]} e6 8. Be3 {White is slightly better.} h3 9. Bf3 Bb4 10. O-O Ne5 11. Be2 Bxc3 12. bxc3 Nxe4 13. Nb5 d5 14. f4 (14. f3 $11 {keeps the balance.} Nd6 15. Nxd6+ Qxd6 16. f4) 14... Nc6 {Pair of Knights!} (14... Nd7 $17 15. Qd4 O-O) 15. Bd3 a6 16. Nd4 (16. Bxe4 $11 axb5 17. Bd3) 16... Nxc3 (16... Qc7 $17) 17. Qe1 $11 {Black must now prevent Nxc6.} Ne4 18. Nxc6 bxc6 19. Bxe4 dxe4 20. Rd1 $1 Qc7 21. Bc5 $1 {And now Qe3 would win.} f5 22. Rd4 (22. Kh1 $11 {is superior.}) 22... Kf7 23. Qd2 Kg6 24. Rd6 {[%cal Og3g4]} Rb8 25. a4 {[%cal Og3g4] Prevents Rb5.} Rb2 (25... Kh7 $15) 26. Qc3 (26. g4 $5 {[%cal Rg4f5]} Rh6 27. Qc3 $11 (27. Qd4 $2 Rxc2 28. Kh1 Kh7 $19)) 26... Qb7 27. g4 {[%cal Bg3g4,Bg4f5][%mdl 32] aiming for gxf5+. Really sharp!} Rb1 (27... Rh6 $1 $11) 28. gxf5+ $16 Kf7 $2 {[%mdl 8192]} (28... Kxf5 $16 29. Qe5+ Kg6) 29. Qc4 $1 $18 {[%csl LRe4,LRe6][%cal Rd6e6] White threatens Rxe6 and mate.} Rxf1+ 30. Kxf1 {[%cal Rd6e6] Rxe6 would kill now.} Re8 31. Kf2 $2 (31. fxe6+ $18 Bxe6 32. Rxe6 $1 {[%mdl 512]} (32. Qxe4 Qe7 $11) 32... Rxe6 33. f5) 31... Qb2 $2 {[%mdl 8192]} (31... Kg8 $16) 32. Rxc6 Qc1 33. Be3 {To avoid Qd2+} ({Weaker is} 33. fxe6+ Bxe6 34. Qxe4 Qd2+ 35. Kg3 Bd7 36. Qc4+ Be6 $11) (33. Rc7+ $18 Kg8 34. Bd4 (34. Qxe4 Qd2+ 35. Kg3 Qc3+ 36. Qd3 Qxd3+ 37. cxd3 exf5 $16) 34... Qxf4+ 35. Ke1 Qh4+ 36. Kd2 Qg5+ 37. Kc3) 33... Qh1 $11 {Hoping for ...Qf3+.} 34. Qd4 $2 {[%mdl 8192]} (34. Qc5 $11 Qxh2+ 35. Ke1 Qg3+ 36. Bf2) 34... Qxh2+ $19 35. Ke1 Qh1+ 36. Bg1 {[#]} h2 $2 (36... Re7 $1 $19 {( -> ...h2)} 37. fxe6+ (37. Rxc8 $2 h2 $19) 37... Bxe6 38. Rxe6 Rxe6 39. Qd7+ Kf6 40. Qd8+ Re7 41. Qd6+ Kf5 42. Qxe7 Qxg1+ 43. Ke2 Qg2+ 44. Ke1 Kg4 45. Qd7+ Kf3 46. Qd1+ Kg3) 37. Rc7+ $11 {The position is equal.} Re7 38. Rxe7+ Kxe7 39. Qxg7+ Kd8 40. Qf8+ Kc7 41. Qc5+ Kd8 $1 (41... Kb7 $2 {is a self mate.} 42. Qb6+ Ka8 43. Qa7#) 42. Qf8+ Kc7 {What a bad dream for Black.  Weighted Error Value: White=0.65/Black=0.58} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.29"]
[Round "8.6"]
[White "Gazel, Frederico"]
[Black "Mekhitarian, Krikor Sevag"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2279"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,92,0,-14,-9,-8,0,-8,-10,-8,0,-10,-8,0,0,-28,-16,-20,-21,-20,-12,-13,-6,-45,-47,-36,-41,-82,-88,-91,-85,-89,-81,-81,-79,-81,-81,-106,-81,-81,-81,-93,-81,-105,-102,-114,-105,-102,-102,-103,-102,-102,-102,-102,-101,-108,-105,-398,-410,-391,-408,-389,-391,-404,-401,-698,-697,-642,-608,-711,-704,-704,-683,-683,-704,-678,-638,-784,-772,-756,-741,-722,-710,-686,-659]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. c3 Qb6 6. Qc2 Nh5 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 7. dxc5 Qxc5 8. Nbd2 Nxf4 {The position is equal.} 9. exf4 g6 {[#]} 10. Rd1 $146 ({Predecessor:} 10. Nb3 Qd6 11. g3 Bg7 12. h4 Bg4 13. Bg2 O-O 14. O-O b5 15. Rfe1 Rfc8 16. Qd2 {0-1 (26) Van Gemert,J (1807)-Hummel,E (2264) Vlissingen 2017}) 10... Bg7 11. Nb3 Qd6 12. g3 {[%cal Of1c4]} O-O 13. Bg2 Qc7 14. Qe2 ({Reject} 14. Rxd5 {[#]} Nb4 $1 {[%mdl 512]} 15. Qe4 Nxd5 16. Qxd5 a5 $17) 14... e6 15. O-O Rb8 16. h4 b5 $1 17. a3 {To avoid b4} a5 18. Nbd4 (18. Ra1 $15) 18... b4 $17 19. axb4 Nxd4 20. Nxd4 axb4 21. Rc1 Qb6 {[#] White must now prevent ...Ba6.} 22. Qe3 Bd7 23. h5 Rfc8 24. hxg6 hxg6 25. Rfe1 Rc7 26. Rcd1 Rbc8 {[%cal Rb4c3]} 27. Rd3 bxc3 28. bxc3 Qb2 {[%cal Rc7c3]} 29. Re2 Qa1+ 30. Re1 Qa5 {[%cal Rc7c3]} 31. Rc1 Rc4 32. Ne2 Bb5 $36 {[%mdl 2048] Black is really pushing. Black is more active.} 33. Bf1 $2 {[%mdl 8192] This costs White the game.} (33. Rdd1 $17) 33... Re4 $19 34. Qd2 Bxd3 35. Qxd3 Rec4 {[%cal Od5d4,Be4c4,Bc4c3,Bc3c2,Bc2b2][%mdl 32]} 36. Rd1 Bxc3 37. Nxc3 (37. Rb1 $142) 37... Rxc3 {Black is clearly winning.} 38. Qd2 Qc5 39. Kg2 Rc2 40. Qe1 Qc3 41. Qxc3 R8xc3 {KRR-KRB} 42. Bd3 Rb2 43. Kf1 Ra3 44. Kg1 Raa2 45. Rf1 Rd2 46. Bb5 Kf8 {Weighted Error Value: White=0.38/Black=0.03 (flawless)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.29"]
[Round "8.7"]
[White "Cuenca Jimenez, Jose Fernando"]
[Black "Ferreira, Thales Bond Dias"]
[Result "1-0"]
[ECO "E39"]
[WhiteElo "2552"]
[BlackElo "1970"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,119,15,0,25,23,38,24,31,37,37,37,34,30,41,40,31,37,89,48,103,63,48,55,67,60,78,75,70,39,55,52,116,113,234,189,174,189,203,201,202,197,175,29,47,27,22,22,16,19,28,13,27,27,27,35,43,19,19,29,40,19,43,77,67,0,0,0,0,0,219,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,29985,29986,29992,29993]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 {[%cal Bb8a6,Ba6c5,Bc5e4][%mdl 32]} 7. g3 Nxc5 8. Bg2 Nce4 9. O-O Nxc3 10. bxc3 Be7 11. e4 d6 12. e5 dxe5 13. Nxe5 Qc7 14. Qe2 Nd7 {The modern move. E39: Nimzo-Indian: Classical: 4...c5 5 dxc5 0-0.} 15. Bf4 {[%cal Oe5g6]} Bd6 {[%cal Rd6e5]} 16. Nxd7 Bxd7 {White has an edge.} 17. Bxd6 Qxd6 18. Bxb7 Rab8 19. Rab1 Bc6 {[#]} 20. Rfd1 $1 Qc5 (20... Qc7 21. Bxc6) 21. Bxc6 Qxc6 {[#]} (21... Rxb1 $14 22. Rxb1 Qxc6) 22. Rb4 $146 (22. Rxb8 $16 {White wants to mate with Rdd8.} Rxb8 23. Qe5) ({Predecessor:} 22. Rxb8 Rxb8 23. Qe5 Rc8 24. Qa5 h6 25. Rd8+ Rxd8 26. Qxd8+ Kh7 27. Qd4 {1-0 (37) Fridman,D (2667)-Womacka,M (2442) Caleta 2013}) 22... Qc5 (22... Rbc8 $14) 23. Qb2 Rbc8 24. Rd4 a6 25. Qd2 h6 26. h4 Rc6 27. Rd8 Rxd8 28. Qxd8+ $14 {[%mdl 4096] Endgame KQR-KQR} Qf8 (28... Kh7 $1 $14) 29. Qd7 $16 {White is much more active.} Qc8 (29... Rd6 $16 30. Qc7 Rd1+ 31. Kg2 Qd6 32. Qxd6 Rxd6) 30. Qa7 Rc7 {[#]} 31. Rb8 $1 {[%mdl 512] Threatening mate with Qxc7.} Rxa7 (31... Kh7 32. Qa8) 32. Rxc8+ $18 {KR-KR} Kh7 33. Kg2 Rd7 {[#]} 34. Rc6 (34. Kf3 $1 $18) 34... Rd3 $11 35. Rxa6 {And now Ra3 would win.} Rxc3 36. Ra4 Kg6 37. Kf1 Kf5 38. Ke2 Rc2+ 39. Ke3 e5 40. h5 g6 41. Ra7 f6 42. g4+ Kg5 43. hxg6 Kxg6 44. Kd3 Rxf2 45. c5 (45. a4 $1 $14) 45... Rf1 $1 46. Ke4 {Threatens to win with c6.} Rc1 ({But not} 46... Rf4+ 47. Kd5 Rd4+ 48. Ke6 $14) 47. Kd5 {Hoping for c6.} Kg5 $2 {[#]} (47... Rd1+ $11 48. Kc4 Rc1+ 49. Kd5 Rd1+ 50. Kc4 Rc1+ 51. Kd5) 48. Rg7+ $2 (48. c6 $1 $18 {[%cal Rc6c7]}) 48... Kf4 49. Rg6 Rd1+ 50. Kc4 Rc1+ 51. Kd5 Rd1+ 52. Ke6 {c6 is the strong threat.} e4 {White must now prevent ...e3.} 53. c6 e3 {aiming for ...e2.} 54. c7 e2 55. c8=Q e1=Q+ 56. Kf7 {Chess con chili.} Qe5 57. Rxf6+ Kg3 58. Rf5 Rd8 $2 {[%mdl 8192]} 59. Qxd8 ({Weaker is} 59. Rxe5 Rxc8 60. Re4 Rc7+ 61. Ke6 Kf3 $16) 59... Qxf5+ 60. gxf5 {Weighted Error Value: White=0.16 (very precise) /Black=0.36} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.29"]
[Round "8.8"]
[White "Languidey, Simon Alejandro"]
[Black "Cubas, Jose Fernando"]
[Result "0-1"]
[ECO "B25"]
[WhiteElo "2403"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,68,0,-4,-4,0,0,-14,-18,-13,-9,-9,-28,-33,-27,-28,-16,-37,0,0,0,1,0,-5,35,39,41,31,74,62,46,17,58,31,16,0,28,-57,-71,-63,-73,-70,-70,-481,-483,-631,-653,-689,-690,-681,-674,-661,-654,-704,-683,-769,-747]} 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 e5 7. O-O Nge7 8. Bg5 {Recently 8.f4 got a lot of attention.} f6 {B25: Closed Sicilian: 3 g3, lines without early Be3.} 9. Be3 O-O 10. f4 Nd4 {The position is equal.} 11. Qd2 Bg4 12. h3 Be6 {[#]} 13. Kh2 $146 ({Predecessor:} 13. Nd1 Qd7 14. Kh2 f5 15. c3 Nxe2 16. Qxe2 exf4 17. Bxf4 fxe4 18. dxe4 Nc6 19. Ne3 Ne5 20. Nd5 Bxd5 {½-½ (20) Do,D (2216)-Bach,N (2239) Hanoi 2020}) 13... Qd7 14. Rae1 Rac8 15. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} a6 16. a5 $1 Rce8 17. b3 {[%cal Bb2b3,Bb3b4][%mdl 32]} Qc7 18. Na4 Nc8 19. b4 Qc6 20. Nb2 {[%cal Of4f5]} Qb5 {[#]} (20... Ne7 $14) 21. c4 $1 $16 Qd7 22. Rb1 f5 (22... Nxe2 $11 23. Qxe2 cxb4) 23. bxc5 dxc5 24. exf5 Bxf5 25. Nc3 (25. fxe5 $11 Nxe2 26. Bd5+ Be6 27. Rxf8+ Bxf8 28. Qxe2) 25... exf4 26. Bxf4 {Black must now prevent Nba4.} Nb3 $1 {[%csl LRa5,LRd2]} 27. Qc2 Bxc3 {Black is more active.} 28. Bd5+ $2 {[%mdl 8192] This costs White the game.} ({Not} 28. Qxc3 $2 Re2 29. Rbe1 {[#]} Rxg2+ $1 {[%mdl 512]} 30. Kxg2 Bxh3+ 31. Kg1 Nd4 $19) (28. Nd1 $1 $15 Qxd3 29. Qxb3) 28... Be6 $19 {Black is clearly winning.} 29. Bxe6+ Rxe6 30. Nd1 {[#]} Nd2 $1 {[%mdl 512]} 31. Nxc3 Nxf1+ 32. Rxf1 g5 33. Nd5 gxf4 34. gxf4 Ne7 {Weighted Error Value: White=0.37/Black=0.08 (flawless)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.29"]
[Round "8.9"]
[White "Lima, Darcy"]
[Black "Cadilhac, Igor Tokuichi Kikuch"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2507"]
[BlackElo "2325"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,113,0,3,0,60,-2,-3,-22,-16,-8,0,-18,31,0,9,1,13,22,21,14,19,11,35,18,20,0,0,0,0,-22,0,0,0,0,27,0,0,0,0,0,0,0,0,-70,-70,-70,-70,-70,-70,-70,-70,-70,-70,-68,-60,-60,-60,-60,-60,-60,-45,-60,-60,-60,-60,-60,-60,-60,0,-60,-60,-60,-10,-11,-12,-12,0,0,0,0,0,-12,-12,-27,-27,-34,0,-12,-12,-34,-34,-29,-18,-12,-25,-24,-10,-10,-10,-10,0,0,0,0]} 1. c4 e6 2. Nf3 d5 3. d4 Nf6 4. g3 dxc4 5. Bg2 a6 6. a4 c5 7. O-O {E04: Open Catalan: 5 Nf3.} Nc6 (7... cxd4 $11 8. Nxd4 e5) 8. Na3 ({Better is} 8. dxc5 $14 Qc7 9. Nbd2) 8... cxd4 $11 9. Nxc4 Bc5 $1 10. Bf4 O-O 11. Nfe5 Bd7 {[#]} (11... Nd5 $11) 12. Qb3 $146 (12. Rc1 $5 {[%cal Rd1b3]}) ({Predecessor:} 12. Nd3 Be7 13. b4 Nd5 14. Bxd5 exd5 15. Nce5 Bh3 16. Nxc6 bxc6 17. Re1 a5 18. Ne5 {0-1 (55) Galliamova,A (2438)-Dzagnidze,N (2520) Moscow 2019}) 12... Nd5 13. Qxb7 Nxe5 14. Nxe5 Ra7 15. Qb3 Nxf4 16. gxf4 Qb8 17. Qc4 Rc8 18. Nxd7 Rxd7 19. Qxa6 Ra7 20. Qc4 Bd6 21. Qxd4 Bxf4 22. h3 Bh2+ 23. Kh1 Be5 24. Qe3 Bxb2 25. Rfb1 {[#] And now Ra2 would win.} Rac7 $36 {[%cal Ba7c7,Bc7c3,Bc3c1][%mdl 2080] White is under pressure.} 26. a5 Rc3 27. Qb6 (27. Qe4 $11 Rb3 28. Ra4) 27... Qxb6 $15 28. axb6 Bxa1 29. b7 $1 Rc1+ 30. Bf1 {[#]} Be5 $1 {Hoping for ...Rxf1+.} 31. bxc8=Q+ (31. bxc8=R+ Rxc8) 31... Rxc8 {[%mdl 4096] Endgame KRB-KRB} 32. Rb7 g5 33. Kg2 Kg7 34. e3 h5 {[%cal Bh7h5,Bh5h4][%mdl 32]} 35. Bb5 Kg6 36. Ba4 h4 37. Bb5 Bc3 38. Bd3+ Kf6 39. Be2 Kg6 40. Bd3+ $1 Kg7 41. Be2 Rc5 (41... Be5 $15) 42. Bh5 $11 Rf5 43. Kf1 Bd2 {aiming for ...Bxe3.} 44. Ke2 Bc1 45. Bg4 Rf6 46. Bh5 Ba3 47. Kf1 Bd6 48. Kg2 Rf5 49. Rd7 Bb4 50. Kf1 (50. Rb7 $5 {[%cal Rb7b4]} Be1 51. f3 $15) 50... Kf8 51. Rb7 Be7 52. Rb8+ Kg7 53. Rb7 Kf6 54. Kg2 {The position is equal.} Ra5 55. e4 e5 56. Rb6+ Kg7 57. Rb7 {Weighted Error Value: White=0.09 (flawless) /Black=0.10 (very precise)} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.29"]
[Round "8.10"]
[White "Guimaraes, Diogo Duarte"]
[Black "Barbosa, Evandro Amorim"]
[Result "1-0"]
[ECO "B48"]
[WhiteElo "2273"]
[BlackElo "2487"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,71,23,49,22,27,28,31,22,20,26,29,6,13,14,13,9,34,18,47,23,114,129,119,61,52,85,79,28,123,113,155,144,162,158,178,177,180,168,218,220,190,148,216,144,153,152,166,152,167,164,149,125,144,152,293,212,612,589,932,0,102,91]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qf3 {B48: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 without Be2.} Bd6 8. O-O-O {[%cal Ba1d1,Bd1d4,Bd4b4][%mdl 32]} Be5 $1 9. g3 {White is slightly better.} Nge7 10. Qe2 b5 11. f4 {And now Nxc6 would win.} Bxd4 12. Bxd4 Nxd4 13. Rxd4 Rb8 14. Qd2 b4 15. Nd1 {[#]} O-O $146 (15... Nc6 $11 {keeps the balance.}) ({Predecessor:} 15... a5 16. Ne3 O-O 17. Kb1 Nc6 18. Rd6 Nd8 19. Nc4 Nb7 20. Rd4 Nc5 21. e5 Bb7 {½-½ (40) Delizia,C (2475)-De Carlos Arregui,I (2427) ICCF email 2017}) 16. Rxb4 $16 Bb7 17. Nc3 (17. Rc4 $16 Qd8 18. Bg2) 17... d5 $14 18. Bg2 {[%cal Re4d5]} Nc6 19. Ra4 dxe4 (19... d4 $11 {remains equal.} 20. Ne2 Rfd8) 20. Bxe4 $16 Rfd8 ({Black should try} 20... f5) 21. Qe3 Na5 22. Rd1 Rdc8 23. Bxb7 Rxb7 24. Qe5 Qxe5 (24... Nc4 $142 25. Qxc7 Rbxc7) 25. fxe5 $40 {[%mdl 128] White wants a kill.} Nc6 26. Rc4 ({But not} 26. Rxa6 Nxe5 27. Ne4 Rcb8 $16) ({Better is} 26. Ne4 $18 {Hoping for Nd6.} Ra8 27. Rd6 Nxe5 28. Rdxa6 (28. Raxa6 Rc8 $16)) 26... Rbc7 (26... Kf8 $16 27. Ne4 Rb4 28. Rxb4 Nxb4) 27. Na4 {Strongly threatening Nb6.} g5 28. Rc5 {White is more active.} Nb4 29. Rxc7 Rxc7 {[%mdl 4096] Endgame [#] KRN-KRN} 30. c3 Kg7 31. Rd6 a5 32. Nb6 Kg6 (32... Nc6 $16) 33. a3 Nc6 {[#]} (33... Na6 34. Nd5 Ra7 35. Ne7+ Rxe7) 34. Nd5 $1 Kg7 35. Nb6 (35. Nxc7 $18 Nxe5 36. Ra6) 35... Kg6 $16 36. Nc4 {Weighted Error Value: White=0.28 (precise) /Black=0.40} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "9.1"]
[White "Cubas, Jose Fernando"]
[Black "Pichot, Alan"]
[Result "1/2-1/2"]
[ECO "C47"]
[WhiteElo "2469"]
[BlackElo "2625"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,87,5,5,0,2,0,6,0,0,0,7,7,0,0,0,2,19,12,18,0,13,16,15,15,12,0,8,0,0,0,0,0,0,0,0,0,9,12,12,10,8,20,9,9,7,7,13,10,11,0,0,-25,0,0,27,-161,-136,-188,-186,-216,-216,-230,-224,-337,0,0,0,0,0,-6348,1865,-541]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 cxd5 9. O-O O-O 10. Qf3 {C47: Scotch Four Knights and Four Knights with 4 g3.} Be6 11. h3 c6 12. Bf4 {The position is equal.} Bd6 13. Rad1 Qb8 14. Bxd6 Qxd6 15. Rfe1 Rab8 16. b3 {[#]} a5 $146 ({Predecessor:} 16... Bd7 17. a4 Qb4 18. Re2 Rfe8 19. Rde1 Kf8 20. Nd1 Qxe1+ 21. Rxe1 Rxe1+ 22. Kh2 Rbe8 {½-½ (31) Rehle,T (1910)-Zhu,N (2001) Tysons 2019}) 17. Ne2 Rfe8 18. Nd4 Bd7 19. Bf5 Rxe1+ 20. Rxe1 Be8 21. Bd3 g6 {Prevents Nf5.} 22. a4 Qb4 {[%csl LRd4,LRe1]} 23. Qe3 Bd7 24. c3 Qd6 25. Qg5 Kg7 26. Qd2 Nh5 27. Bf1 Nf4 28. c4 Qf6 29. cxd5 Nxd5 30. Rd1 Rb4 31. g3 h5 32. Bg2 h4 33. Kh2 Qe5 34. Nf3 Qc7 35. Nd4 Nf6 36. Qg5 (36. Qc3 $11 {and White stays safe.}) 36... c5 $19 37. Ne2 (37. Nf3 $17 {was worth a try.}) 37... Rxb3 38. Nf4 {[%cal Og5f6] Strongly threatening Qxf6+!} hxg3+ (38... Bxa4 39. Qxf6+ Kxf6 40. Nd5+ Kg7 41. Nxc7 hxg3+ 42. fxg3 $11) 39. fxg3 {[%cal Og5f6] [#] Threatens to win with Qxf6+!} Rb6 ({Stronger than} 39... Bxa4 40. Qxf6+ Kxf6 41. Nd5+ Kg7 42. Nxc7 $11) 40. Rc1 (40. Rd2 $142) 40... Bxa4 $2 (40... Bf5 $19 {aiming for ...Qe5.} 41. Kh1 Qd6) 41. Rxc5 $11 Qd6 42. Rxa5 Bd7 43. Rf5 $2 {[%mdl 8192]} Ba4 $4 {[%mdl 8192] [#]} (43... Bxf5 $19 44. Nd5 Nxd5) 44. Nh5+ $4 {[%mdl 40960] Weighted Error Value: White=0.41/Black=0.14 (very precise) . An unexpected result.} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "9.2"]
[White "Mekhitarian, Krikor Sevag"]
[Black "Cuenca Jimenez, Jose Fernando"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2562"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,67,15,13,14,9,9,0,15,16,22,15,8,0,0,0,0,0,2,-14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,18,11,4,7,8,0,6,0,0,0,13,18,19,0,0,0,0,0,165,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. O-O d6 6. c3 a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 7. Nbd2 O-O 8. h3 {8.h3 is better than 8.Re1.} h6 9. Re1 Be6 10. Bb5 Qb8 11. Bxc6 bxc6 12. d4 exd4 13. cxd4 Bb6 14. a4 Qa7 15. Nf1 d5 16. Ng3 {[#]} dxe4 $146 ({Predecessor:} 16... c5 17. e5 Ne4 18. Nxe4 dxe4 19. Rxe4 cxd4 20. Bxh6 gxh6 21. Qd2 Kg7 22. Rh4 Rh8 {0-1 (62) Brkic,A (2600)-Onischuk,V (2616) Batumi 2019}) 17. Nxe4 Nxe4 18. Rxe4 {[#] Black must now prevent Rh4.} Rad8 19. Ra3 {[%cal Oc1h6]} Bf5 20. Re5 Bg6 21. Qe1 Rd5 22. Be3 Bh5 23. Rxd5 cxd5 24. Ne5 Re8 (24... Bxd4 $2 25. Nc6 Qb6 26. Nxd4 $18) 25. Nc6 Qa8 26. Qc1 Re6 27. Ne5 Qe8 28. Nd3 Rc6 29. Rc3 Rxc3 30. Qxc3 Qxa4 31. Nf4 $1 {[%csl LRd5,LRh5] Strongly threatening b3.} Be2 $2 {[#]} 32. Nxd5 $2 (32. b3 $1 $18 {[%cal Rb3a4]} Qb5 33. Qc2) 32... Qc4 33. Qxc4 Bxc4 34. Nxb6 {Weighted Error Value: White=0.08 (flawless) /Black=0.15 (very precise)} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "9.3"]
[White "Di Berardino, Diego Rafael"]
[Black "Fier, Alexandr"]
[Result "1/2-1/2"]
[ECO "D47"]
[WhiteElo "2480"]
[BlackElo "2572"]
[Annotator "TA"]
[PlyCount "130"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,130,5,1,10,9,16,0,28,0,0,-22,-25,-31,-7,-62,2,-26,-10,-54,-45,-53,-55,-47,-52,-49,-55,-52,-55,-210,-219,-206,-165,-187,-49,-107,-2,-41,-68,-62,-65,-69,-82,-75,-7,-25,-16,-81,-74,-340,-189,-182,-47,-43,-32,-45,0,-45,0,-35,-8,-8,-12,-46,-39,-48,-50,-40,-33,-68,-8,-49,-58,-65,-53,-67,-67,-67,-40,-227,-239,-251,-15,-15,-15,-15,-15,-15,0,0,0,0,0,0,0,0,0,0,0,0,0,-14,-14,-14,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Bd3 Nbd7 6. O-O dxc4 7. Bxc4 Bd6 8. a3 O-O 9. Nc3 b5 10. Be2 Bb7 {D47: Semi-Slav: Meran System.} 11. e4 e5 $1 12. Bg5 a6 {[#]} 13. Rc1 $146 ({Predecessor:} 13. Bd3 exd4 14. Nxd4 Nc5 15. Bc2 Be5 16. Be3 Re8 17. Nf3 Bxc3 18. Bxc5 Bxb2 19. Rb1 Qxd1 20. Rfxd1 {0-1 (39) D Albini,G (1983)-Csoli,O (2204) Hungary 2018}) 13... Re8 14. b4 h6 15. Bh4 exd4 (15... Rc8 $5 {[%cal Re5d4]}) 16. Qxd4 (16. Nxd4 $11 Bf4 17. Rc2) 16... Qe7 ({Black should play} 16... Bf8 $15 17. Rfd1 g5) 17. Rcd1 Bc7 18. Rfe1 (18. Rc1 $11 {deserves consideration.}) 18... g5 $15 19. Bg3 Bxg3 20. hxg3 {[%cal Oe4e5] aiming for e5!} c5 21. Qd2 {[%cal Oe4e5]} cxb4 22. axb4 Qxb4 {And now ...Rac8 would win.} 23. Nd4 $2 (23. Nxg5 $1 $15 hxg5 24. Qxg5+ Kf8 25. Qh6+ Kg8 26. Qg5+ Kf8 27. Qh6+ Ke7 28. e5 Qxc3 29. exf6+ Kd8 30. Rxd7+ $1 Kxd7 31. Rd1+ Kc7 32. Rc1 $1 Qxc1+ 33. Qxc1+ Kb6 34. Qb2) 23... Rac8 $19 24. Rc1 Qd6 25. f3 Ne5 (25... Qxg3 26. Nf5 Qe5 27. Nd6 $11) (25... b4 $19 26. Nb1 Qb6) 26. Red1 (26. Qe3 $1 $15) 26... Nc4 (26... Qb6 $17 27. Qe3 Red8) 27. Bxc4 (27. Qa2 $5 {[%cal Rd4f5]}) 27... Rxc4 28. Nce2 Rxc1 $1 29. Qxc1 Rd8 30. Kh2 Rd7 (30... Ne8 $17) 31. Qb2 {[%cal Od4f5]} Qe5 32. Qb4 (32. Qb1 $1 $11) 32... g4 {Threatens to win with ...gxf3.} 33. Qb1 $2 {[%mdl 8192]} (33. Qd2 $17) 33... gxf3 (33... Qh5+ $142 34. Kg1 gxf3 35. gxf3 Bxe4 36. fxe4 Ng4) 34. gxf3 {[#]} Kh7 (34... Bxe4 $1 $19 {[%mdl 512]} 35. fxe4 Ng4+ 36. Kg2 (36. Kg1 $2 Qh5 $19) 36... Ne3+ 37. Kf3 Nxd1 38. Qxd1 a5) 35. Qc1 $15 Rc7 36. Qd2 Rd7 (36... Qg5 $5 {[%cal Rg5d2]}) 37. Qc1 Rc7 38. Qd2 (38. Qf4 Qxf4 39. gxf4 Ne8 $15) 38... Bc8 (38... Qg5 $5 {[%cal Rg5d2]}) 39. Kg2 Qg5 40. Qa5 Rc4 41. Qb6 Nd7 42. Qd6 Qf6 $36 {[%mdl 2048] White is under pressure.} 43. Nf5 Qxd6 (43... a5 $15) 44. Nxd6 {Pair of Knights!} (44. Rxd6 $11 Ne5 45. Rxh6+ Kg8 46. Nfd4) 44... Rc2 45. Nxc8 Ne5 ({Don't do} 45... Rxe2+ 46. Kf1 Rc2 47. Rxd7 $14) 46. f4 Rxe2+ {[%mdl 4096] Endgame KRN-KRN} 47. Kh3 $1 Nc4 ({Don't play} 47... Rxe4 48. Nd6 (48. fxe5 Rxe5 49. Rd7 Rc5 $11) 48... Re3 49. fxe5 $16) 48. e5 {[#]} ({Only move:} 48. Rd7 $1 $15) 48... Rd2 $1 $19 49. Re1 b4 $2 ({Better is} 49... a5 $19 {...b4 is the strong threat.} 50. Re4 Rd5) 50. Re4 $1 $11 {The position is equal.} Rc2 51. Nd6 Nxd6 52. exd6 {KR-KR} a5 53. Re5 Rd2 54. Rxa5 Rxd6 {Strongly threatening ...Rb6.} 55. Rb5 {Prevents Rb6.} Rd4 56. Rb6 $1 Kg7 57. Kg4 Rc4 58. Kf5 Rc3 59. Rxb4 Rxg3 60. Rb1 h5 61. Rh1 Kh6 62. Rh2 Ra3 63. Rh1 Ra2 64. Kf6 Ra4 65. Kf5 Ra6 {Weighted Error Value: White=0.28 (precise) /Black=0.32} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "9.4"]
[White "Delgado Ramirez, Neuris"]
[Black "Molina, Roberto Junio Brito"]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "2614"]
[BlackElo "2420"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,51,0,-3,-25,-18,-14,-8,-15,-15,-15,8,0,10,0,12,16,27,-6,0,-12,75,85,157,162,168,158,131,121,667,637,670,658,678,665,675,668,652,592,942,881,814,514]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 cxd4 5. Nxd4 Nc6 6. Bb5 Bd7 7. Bxc6 {C07: French Tarrasch: 3...c5, 4 Ngf3 and 4 exd5 Qxd5.} bxc6 8. O-O Qc7 9. Re1 {The position is equal.} Bd6 10. N4f3 Ne7 11. e5 Bc5 {[#]} 12. c4 $146 ({Predecessor:} 12. Nb3 Bb6 13. a4 a5 14. Bg5 Ng6 15. h4 h6 16. h5 hxg5 17. hxg6 f6 18. exf6 gxf6 {0-1 (29) Bulgarini Torre,M (1978)-Valenzuela Gomez,F (2226) Antofagasta 2015}) 12... Ng6 13. Nb3 Be7 14. Bd2 O-O 15. Rc1 {[%cal Oh2h4,Ba1c1,Bc1c3,Bc3h3][%mdl 32]} Qb7 (15... a5 $11) 16. h4 $1 $16 Bxh4 (16... f6 $142) 17. Nxh4 Nxh4 18. Qh5 Ng6 {[#]} 19. Rc3 $1 {White is more active.} Be8 $2 {[%mdl 8192] This costs Black the game.} (19... h6 $2 {[#]} 20. Bxh6 $1 gxh6 21. Qxh6 $18) (19... Rfd8 $16) 20. Nc5 {[%cal Bb3c5,Bc5e6,Be6c7][%mdl 32] White is clearly winning.} Qe7 {[#]} 21. Rh3 $1 {[%csl Gh3][%cal Rh5h7]} h6 {[#]} 22. Bxh6 $1 {[%mdl 576] Demolition} gxh6 {[#]} 23. Qxh6 {[%csl Gh3][%cal Rh6h7]} f5 {[#]} 24. Nxe6 {[%mdl 512] aiming for cxd5.} Kf7 (24... Rb8 25. Nxf8) 25. cxd5 cxd5 {[#]} 26. Nc7 $1 {[%mdl 512] Weighted Error Value: White=0.06 (flawless) /Black=0.66} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "9.5"]
[White "Filgueiras, Nathan Felipe"]
[Black "Bachmann, Axel"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "2309"]
[BlackElo "2594"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,70,0,0,-14,-17,-9,-17,-17,-3,-14,-14,-32,0,0,0,0,0,0,-8,0,-14,-17,-15,-53,-25,-13,20,-24,-18,-39,-41,-68,181,-87,-100,-104,-94,-110,-105,-110,-96,-120,-109,-118,-113,-397,-406,-553,-521]} 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 c6 5. a4 Nf6 6. Be2 O-O 7. O-O Nbd7 8. h3 b6 9. Be3 Bb7 10. Qd2 Qc7 11. Bh6 a6 12. Bxg7 Kxg7 13. d5 {[#] B08: Pirc Defence: Classical System.} Nc5 $146 ({Predecessor:} 13... b5 14. dxc6 Bxc6 15. axb5 axb5 16. Bxb5 Bxb5 17. Nxb5 Qb7 18. c4 Qxe4 19. b3 Nc5 20. Rae1 Qb7 {0-1 (46) Peter,S (2282)-Paci,C (2300) France 2009}) 14. Qd4 e5 15. dxe6 $1 {The position is equal.} Nxe6 16. Qe3 Rfe8 17. Rfe1 Nc5 {[%cal Rc5e4]} 18. Bd3 d5 19. e5 Nfd7 {[%cal Od7e5]} 20. Qf4 Re7 21. b4 Ne6 {[%cal Bc5e6,Be6g7,Bg7h5][%mdl 32]} 22. Qg3 Kh8 23. h4 {[%cal Oh4h5]} Rae8 (23... Ng7 $5 {[%cal Ra8e8]}) 24. h5 Ng7 25. h6 (25. hxg6 $142 fxg6 26. Qh2 Nxe5 27. Rxe5 Rxe5 28. Bxg6 Re1+ 29. Rxe1 Qxh2+ 30. Kxh2 Rxe1 31. Nxe1 hxg6 32. a5 bxa5 33. bxa5) 25... Nh5 $11 26. Qh4 Kg8 {[%cal Rd7e5]} 27. Re2 c5 $2 {[#]} (27... Nxe5 $15 {keeps the upper hand.} 28. Nxe5 Rxe5) 28. Rae1 $2 (28. Bxa6 $1 $18 {[%mdl 512] Strongly threatening Nb5.} Bc6 29. Rae1 (29. b5 Ba8 $15)) 28... d4 $1 $17 {And now ...Bxf3 would win.} (28... Nxe5 $2 29. Nxe5 cxb4 30. Nf3 Rxe2 31. Nxe2 $18) 29. Ne4 c4 $36 {[%mdl 2048] Black has strong initiative.} (29... Nxe5 $2 30. Nf6+ Kh8 31. Nxe8 Rxe8 32. Rxe5 $18) 30. Bxc4 Bxe4 ({Of course not} 30... Qxc4 $6 31. Nd6 Qd5 32. Re4 $11 (32. Nxe8 Rxe8 33. Rd2 Qc6 $11)) 31. Bxf7+ Rxf7 {[%cal Be7f7,Bf7f5,Bf5d5][%mdl 32]} 32. Rxe4 {[#] Black must now prevent e6.} Rf5 $1 (32... Qxc2 $2 33. e6 Rxe6 34. Rxe6 $18) 33. e6 Ndf6 34. Nxd4 $2 {[%mdl 8192] [#]} (34. Rxd4 $17 Qxc2 35. Qh2) 34... Rd5 $1 $19 ({And not} 34... Nxe4 35. Nxf5 Nef6 36. Nd4 $17) 35. R4e3 g5 {Weighted Error Value: White=0.50/Black=0.17 (very precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "9.6"]
[White "Supi, Luis Paulo"]
[Black "Rodi, Luis Ernesto"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2581"]
[BlackElo "2358"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,87,10,17,18,18,19,19,15,18,19,22,23,21,16,25,12,13,13,23,16,17,20,17,16,22,26,31,13,20,24,58,58,89,72,113,100,103,109,106,85,80,52,110,131,195,168,195,175,209,186,320,308,299,256,299,285,285,281,318,302,286,224,395,375,404,400,380,259,446,435,375,397,852,483,1491,1330,1643,1406]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. O-O a6 7. a4 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} Ba7 8. Re1 O-O 9. h3 {The position is equal.} h6 10. Nbd2 Be6 11. Bxe6 fxe6 12. b4 Nh5 13. Nf1 Qe8 14. Ra2 Qg6 15. Kh2 Nf4 {[%csl Gf4][%cal Rg6g2]} 16. g3 Nh5 17. Be3 Bxe3 18. Rxe3 Nf6 {[#]} 19. Rb2 $146 ({Predecessor:} 19. Kg2 Nd7 20. N1d2 b5 21. Nb3 Qf7 22. Qa1 Nb6 23. a5 Nd7 24. Qe1 {½-½ (24) Kupsys,A (2530)-Balshaw,A (2462) ICCF email 2020}) 19... Qh5 20. Kg2 d5 21. Re1 Rad8 22. Qe2 Nd7 (22... b5 $142) 23. N1h2 $16 b5 24. axb5 axb5 25. Ng4 Qf7 26. Ra1 h5 {[#] White now steadily converts the win.} ({Better is} 26... Qe7 $1 $14) 27. Ngh2 $1 {White is more active.} Qf6 {To avoid Ng5} (27... Qe7 $16) 28. h4 $18 Nb6 29. Ng5 g6 30. Nhf3 Ra8 (30... Rde8 $142 31. Ra6 Qd8) 31. Rxa8 Rxa8 32. Ra2 {Strongly threatening Rxa8+.} Ra4 33. Rc2 Ra8 34. Qe3 {Threatens to win with Qc5.} Na4 {To avoid Qc5} 35. Qe1 Nb6 36. Re2 {exd5 is the strong threat.} Nd7 $2 (36... Re8 {might work better.} 37. exd5 exd5) 37. d4 Re8 38. exd5 exd5 39. Nxe5 Ncxe5 (39... Ndxe5 40. f4 (40. dxe5 Rxe5 41. Qd1 Qd6 $16) 40... Qf5) 40. f4 {[%mdl 64] [#] Pin} (40. dxe5 Rxe5 41. Nf3 Rxe2 42. Qxe2 Qf8 43. Qxb5 Qd6 $18) 40... Nf8 41. fxe5 ({Not} 41. Rxe5 Ra8 42. Qf2 (42. Rxd5 Qc6 $18) 42... Nd7 $18) ({Less strong is} 41. dxe5 Qc6 42. Nf3 Qd7 $18) 41... Qf5 (41... Qc6 42. Qf1 Re7) 42. Qd2 {White is clearly winning.} Ne6 (42... Re7 $142 43. e6 Nxe6) 43. Rf2 Qb1 44. Rf1 {Weighted Error Value: White=0.17 (very precise) /Black=0.30} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "9.7"]
[White "Hungaski, Robert"]
[Black "Guimaraes, Diogo Duarte"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2521"]
[BlackElo "2273"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,97,22,34,25,33,2,61,68,74,62,77,91,75,71,116,79,110,116,141,110,122,124,130,129,123,130,216,86,89,77,115,62,79,69,141,132,143,144,139,139,138,141,164,163,193,212,207,204,385,387,391,389,525,579,662,617,779,761,615,517,2014,1941,29971,29972,29972,29973,29972,29973,29969,29974,29965,29963,29982,29983,29984,29985,29990,29991,29991,29991,29991,29992,29992,29993,29993,29994]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. c5 Nbd7 6. Bf4 Nh5 7. e3 g6 8. h4 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4.} Bg7 9. Bh2 b6 (9... O-O $11) 10. cxb6 $14 {White is slightly better.} Qxb6 {[#]} 11. a3 $146 ({Predecessor:} 11. Qb3 Qd8 12. Be2 O-O 13. Ne5 Bxe5 14. Bxe5 Nxe5 15. dxe5 Ng7 16. h5 Qc7 17. Qa4 Qxe5 18. Qxc6 {0-1 (88) Dambacher,M (2403)-Saltaev,M (2480) Germany 2004}) 11... O-O 12. Na4 Qa7 13. Rc1 Bb7 (13... Nb6 $142) 14. Be2 Nhf6 {[#]} 15. Ne5 $1 Rfc8 16. Qb3 Nxe5 17. Bxe5 Nd7 18. Bxg7 {White is much more active.} Kxg7 19. h5 {[%cal Oe3e4]} a5 {[#]} (19... Qb8 $16 20. f4 a5) 20. Nc5 (20. e4 $1 $18 {and the rest is easy.}) 20... Nxc5 $16 21. Rxc5 {[%cal Oe3e4] And now e4! would win.} a4 22. h6+ (22. Qb4 $16) 22... Kf8 23. Qc3 $36 {[%mdl 2048] White is pushing.} Ba6 (23... Qb6 $14) 24. Ra5 ({Much weaker is} 24. Rxc6 $6 Qd7 25. Rc5 Bxe2 26. Kxe2 Qg4+ 27. Kd2 Rcb8 $11) 24... Qb7 25. Rxa4 Bxe2 26. Rxa8 Rxa8 27. Kxe2 {[%mdl 4096] Endgame KQR-KQR} Rb8 28. b4 Qc8 29. Rc1 Qa6+ 30. Qd3 Qa4 (30... Qc8 31. Qc3 Qa6+ 32. Kf3 f6) 31. Rc5 $18 Ra8 {Inhibits Ra5.} 32. Qc3 f6 33. Rxc6 Kf7 34. Qc5 Qxa3 35. Qxd5+ Kf8 36. b5 {[%cal Bb4b5,Bb5b6][%mdl 32] Black must now prevent Kf3.} Rb8 (36... Qa2+ $142 37. Qxa2 Rxa2+ 38. Kd3 Kf7) 37. b6 Qb2+ 38. Kf3 {White mates.} Qb1 {[#]} 39. Rxf6+ $3 {[%mdl 512]} exf6 40. Qd6+ Kf7 41. Qc7+ Ke6 42. Qxb8 {KQ-KQ} f5 43. Kg3 Qd1 44. Qf4 Kf6 45. b7 g5 46. Qd6+ Kf7 47. Qd7+ Kg6 48. Qe6+ Kh5 49. Qxf5 {Weighted Error Value: White=0.13 (very precise) /Black=0.54} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "9.8"]
[White "Alboredo, Julia"]
[Black "Rodriguez Vila, Andres"]
[Result "1/2-1/2"]
[ECO "C18"]
[WhiteElo "2200"]
[BlackElo "2473"]
[Annotator "TA"]
[PlyCount "135"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,135,47,25,33,37,34,36,45,13,44,0,60,0,0,-12,-5,-4,-2,-14,2,2,2,2,25,30,43,43,43,50,50,50,50,50,122,133,275,275,275,275,275,275,275,243,225,242,369,202,172,144,171,168,258,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,12,0,91,91,91,98,336,334,331,324,269,268,262,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,201,120,120,120,120,0,0,0,120,0]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Nc6 7. Qg4 g6 8. a4 ({But not} 8. dxc5 Nxe5 9. Bb5+ Bd7 $11) 8... Qa5 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4.} 9. Bd2 Bd7 10. Nf3 c4 {White is slightly better.} 11. Qf4 h6 12. h4 (12. Be2 $14) 12... Rh7 (12... Nce7 $11) 13. g4 ({White should play} 13. Qe3 $14) 13... O-O-O $11 14. g5 h5 15. Bh3 Nce7 16. O-O {[#]} Kb8 $146 ({Predecessor:} 16... Bxa4 17. Rfb1 b5 18. Qe3 Kd7 19. Bc1 Ke8 20. Nd2 Kf8 21. Nb3 cxb3 22. cxb3 Kg7 23. bxa4 bxa4 {1-0 (36) Bosiocic,M (2607)-Weiss,O (2271) St Veit 2016}) 17. Rfb1 Ka8 18. Qe3 Nc8 19. Bc1 $1 Nge7 {[%cal Bg8e7,Be7c6,Bc6a5,Ba5c4][%mdl 32]} 20. Ba3 Bxa4 21. Nd2 $1 Nc6 22. Bc1 {[%cal Od2b3]} b5 23. Nb3 $1 cxb3 (23... Qc7 $1 $14) 24. cxb3 $16 Qc7 (24... Bxb3 $16 25. Rxa5 Nxa5) 25. bxa4 $18 bxa4 26. Ba3 ({Not} 26. Rxa4 Nb6 27. Raa1 Nc4 $14) 26... Na5 27. Bc5 Nc4 28. Qe1 N8b6 29. Bf1 Qc6 (29... Rb8 $142 30. Bxc4 dxc4) 30. Bxb6 (30. Rb4 $142) 30... Nxb6 (30... axb6 $2 31. Rb4 b5 32. Qb1 $18) 31. Bb5 Qc7 32. Bxa4 Rb8 (32... Nxa4 $142 33. Rxa4 Rb8) 33. Rb5 $2 ({White must play} 33. Bb5 $18) 33... Nxa4 $11 34. Rxb8+ Qxb8 35. Rxa4 {[%mdl 4096] Endgame KQR-KQR} Rh8 36. c4 dxc4 37. Rb4 {White wants to mate with Qe4+.} Qd8 38. Qc3 Qd5 {Inhibits Rb5.} 39. Rxc4 {Strongly threatening Rc8+.} Rb8 40. f3 Qb7 41. Kf2 Qb2+ 42. Qxb2 Rxb2+ {KR-KR} 43. Ke3 {[%cal Od4d5]} Kb7 44. d5 Rb3+ 45. Ke2 {Hoping for Rf4.} Rb5 (45... exd5 $11 {remains equal.} 46. Rf4 Kc6) 46. Rf4 $16 Rxd5 47. Rxf7+ Kb6 $2 (47... Kc6 $16 {was necessary.}) 48. Rf6 $18 {[%csl LRe6,LRg6]} Rxe5+ 49. Kd3 $1 a5 {[%cal Ba7a5,Ba5a4][%mdl 32]} (49... Rd5+ $2 50. Ke4 $18) 50. Rxg6 {Black must now prevent f4.} a4 {[#]} 51. Kc2 $2 ({Only move:} 51. Rg8 $1 $18 {aiming for g6.} Rf5 52. Ke4) 51... Re2+ $11 52. Kb1 Kc5 53. Rg8 Kd6 54. Ra8 Rf2 55. Rxa4 Rxf3 56. Kc2 e5 57. Ra6+ Kd5 58. Rh6 Rf2+ 59. Kd3 e4+ 60. Ke3 Rf3+ 61. Ke2 Kd4 62. Rxh5 {g6 is the strong threat.} Rg3 63. Rh8 e3 $2 {[#]} (63... Rg2+ $11 64. Kf1 Rg4) 64. Rd8+ (64. Re8 $1 $18) 64... Ke4 $16 65. Re8+ Kf4 66. Rf8+ (66. Kd3 $16) 66... Ke4 $1 $11 67. Re8+ ({White should try} 67. Rc8 $11) 67... Kf4 $1 $16 68. Rf8+ {Weighted Error Value: White=0.17 (very precise) /Black=0.24 (precise)} (68. Kd3 $16) 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "9.9"]
[White "Matsuura, Everaldo"]
[Black "Federzoni, Enzo"]
[Result "1/2-1/2"]
[ECO "E61"]
[WhiteElo "2441"]
[BlackElo "2177"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,119,28,19,20,20,-2,-7,-13,-9,-22,29,34,50,0,0,0,81,85,83,0,0,0,0,0,0,0,0,0,10,10,8,0,0,0,2,0,67,77,68,75,78,76,163,162,255,130,139,131,179,170,178,164,164,143,144,130,190,84,72,22,71,83,210,216,184,210,204,179,351,316,264,247,351,351,351,351,351,351,351,351,351,351,351,351,351,351,346,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 g6 2. Nc3 c5 3. e3 Bg7 4. d4 {[%cal Bd2d4,Bd4d5][%mdl 32]} Nf6 5. d5 d6 6. Nf3 e6 7. Be2 O-O 8. O-O {E61: King's Indian: Early deviations for White, including Smyslov System.} Re8 9. h3 exd5 10. cxd5 {[#]} Bf5 $146 ({Predecessor:} 10... Na6 11. Nd2 Nc7 12. e4 Rb8 13. a4 b6 14. Rb1 Na6 15. Re1 Nb4 16. Bb5 Bd7 {1-0 (43) Ponkratov,P (2589)-Shcherbakov,R (2516) Sochi 2016}) 11. Nd2 Ne4 (11... Na6 $142 $1) 12. Ndxe4 $11 Bxe4 13. Bg4 (13. Bb5 $14 Re7 14. f3 (14. Nxe4 Rxe4 15. Bd3 Re8 $11)) 13... h5 14. Be2 Qg5 (14... Bxc3 $11 15. bxc3 Qg5) 15. f3 $16 Bxc3 16. bxc3 (16. Bb5 $1 $16 {[%cal Rb5e8]} Bf5 17. Bxe8 Bxh3 18. Qc2) 16... Bxd5 $11 17. e4 Qe5 18. Rb1 Bc6 19. c4 $36 {[%mdl 2048] White has some pressure.} Nd7 20. Qd2 Qd4+ 21. Qxd4 cxd4 22. Rd1 f5 $1 23. Rxd4 fxe4 24. f4 Nf8 ({Better is} 24... Re6 $11) 25. Rxd6 $14 Rad8 26. c5 Rxd6 27. cxd6 Kf7 (27... Rd8 $16) 28. Bc4+ $18 Kf6 {[#]} (28... Kg7 {keeps fighting.} 29. Kf2 Nd7 30. Bb2+ Kh6) 29. Kf2 (29. g4 $1 $18 {Threatening mate with Bb2+.} Kg7 30. Bb2+ Kh6 31. Bf7) 29... h4 $16 30. Ke3 {aiming for Bb2+.} Rd8 (30... Nd7 $16) 31. Bb2+ $18 Kf5 32. Be2 {[%csl Gh3][%cal Re2g4] This bishop pair is nice.} Ke6 33. Be5 Nd7 34. Kd4 {White is more active.} Nf6 (34... Nb6 $16 {was necessary.} 35. Bg4+ Kf7) 35. Rg1 (35. Bc4+ $18 {and White stays clearly on top.} Kf5 36. Rg1) 35... Ne8 $16 36. Bg4+ Kf7 37. Kc5 Bd7 (37... Nf6 $16 {was worth a try.}) 38. Bxd7 $18 Rxd7 {[%mdl 4096] Endgame KRB-KRN} 39. Re1 Ke6 {[%cal Re8d6]} 40. Rxe4 {[%cal Oe5f6]} Kf5 {To avoid Bf6} (40... Rf7 41. Re3 Rf5) 41. Re2 Rd8 42. Rb2 Rd7 (42... Ke6 $142 43. Rxb7 Nxd6 44. Rxa7 Ne4+ 45. Kb5 g5) 43. a4 Ke6 {[%cal Re8d6]} 44. Re2 Rf7 {[#]} 45. Bf6+ $1 {[%mdl 512]} Kd7 46. Re7+ ({Not} 46. Bxh4 Nxd6 47. g4 Ne8 $18) 46... Rxe7 47. Bxe7 {KB-KN} Ng7 48. Bxh4 {Black must now prevent Bg5.} Ne6+ 49. Kd5 Nxf4+ {[#]} 50. Ke5 $2 (50. Ke4 $1 $18 {[%cal Re4f4]} Ne6 51. Bf2) 50... Nxg2 $11 {The position is equal.} 51. Bg3 g5 52. Kf5 Nf4 $1 53. Bxf4 gxf4 54. Kxf4 {White wants to mate with Ke5.} Kxd6 {KPP-KPP} 55. Ke4 b6 56. h4 Ke6 57. Kd4 a6 58. h5 b5 59. axb5 axb5 60. Ke4 {Blacks defense is rewarded with a draw.  Weighted Error Value: White=0.17 (very precise) /Black=0.24 (precise)} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "9.10"]
[White "Lima, Darcy"]
[Black "Luz, Arthur Nader"]
[Result "1-0"]
[ECO "A26"]
[WhiteElo "2507"]
[BlackElo "2169"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,81,0,3,0,2,0,0,0,-12,0,-19,-19,-8,-3,-13,-1,-12,35,12,56,0,33,28,89,74,74,62,53,0,0,0,0,0,0,0,0,0,0,0,27,33,22,22,112,114,165,193,349,370,510,512,610,428,580,547,813,802,780,767,1434,1393,29975,29976,29974,29975,29959,9662,29997,29998,29998,29999]} 1. c4 g6 2. Nc3 Bg7 3. Nf3 d6 4. g3 e5 5. Bg2 Nc6 6. d3 Nge7 7. Rb1 a6 {A26: English Opening vs King's Indian with ...Nc6 and d3.} 8. b4 Rb8 {[#]} 9. a4 $146 ({Predecessor:} 9. O-O O-O 10. a4 a5 11. bxa5 Nxa5 12. Bd2 Nac6 13. Nd5 Bd7 14. Ne1 Nxd5 15. cxd5 {0-1 (53) Leer Salvesen,B (2358)-Gullaksen,E (2378) Oslo 2008}) 9... a5 {The position is equal.} 10. bxa5 Nxa5 11. Nd5 O-O 12. O-O Nac6 13. Bg5 f6 14. Bd2 Be6 (14... Ra8 $11) 15. e4 Qd7 (15... Bg4 $11) 16. Bc3 (16. a5 $1 $14) 16... h6 (16... b6 {feels hotter.} 17. Qc2 g5 18. Rb5 Na7 19. Rb2 Nac6) 17. d4 {[%cal Bd3d4,Bd4d5][%mdl 32]} f5 (17... b6 $11 {keeps the balance.}) 18. Nxe7+ (18. dxe5 {is more complex.} fxe4 19. Nf6+ Bxf6 20. exf6 exf3 21. fxe7 Nxe7 22. Bxf3 Nf5 23. Re1) 18... Nxe7 (18... Qxe7 $2 19. d5 $18) 19. d5 Bf7 20. h4 ({White should try} 20. Nd2 $14) 20... fxe4 $11 21. Nd2 e3 22. fxe3 Nf5 23. Bh3 Qe7 24. Bxf5 gxf5 25. Rxf5 Bg6 26. Rxf8+ Rxf8 27. Rxb7 {Threatens to win with a5.} Qf7 {[#]} (27... h5 $11 {remains equal.}) 28. Qe1 $1 $16 {a5 is the strong threat.} Bd3 (28... h5 $16 29. a5 Bh6) 29. a5 $18 Ra8 (29... Qd7 {might work better.} 30. e4 h5) 30. e4 Bc2 31. Qe2 h5 32. Nf1 {[%cal Bd2f1,Bf1e3,Be3f5][%mdl 32]} Ba4 33. Ne3 Qg6 34. Nf5 {[#] Black must now prevent Ne7+.} Bf8 {To avoid Ne7+} 35. Qe3 Qf7 36. c5 dxc5 37. Qg5+ Kh7 38. Bxe5 Rc8 39. d6 {[%cal Rb7c7]} Qc4 40. Qxh5+ Kg8 41. Qg6+ {Weighted Error Value: White=0.13 (very precise) /Black=0.44} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "10.1"]
[White "Pichot, Alan"]
[Black "Supi, Luis Paulo"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2625"]
[BlackElo "2581"]
[Annotator "TA"]
[PlyCount "38"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,38,33,12,18,15,24,16,27,3,37,0,0,0,25,25,17,21,24,18,34,16,34,15,15,15,27,5,20]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. O-O Ngf6 6. Qe2 e6 7. b3 {7.d4 is the modern continuation.} Be7 {B50: Sicilian: 2...d6, Miscellaneous.} 8. c4 Qb6 9. Bb2 O-O 10. Nc3 {[#]} Rad8 $146 ({Predecessor:} 10... a6 11. Kh1 Rad8 12. d3 Ne5 13. Nxe5 dxe5 14. f4 exf4 15. Rxf4 Nd7 16. e5 Qc7 17. Rg4 {0-1 (74) Tripp,G (1828)-Geier,T ICCF email 2013}) 11. Rad1 Ne5 12. Rfe1 Nfd7 13. Na4 Qc7 14. d4 Nxf3+ 15. Qxf3 Bf6 16. Qg3 {Threatens to win with dxc5.} cxd4 17. Bxd4 a6 18. Nc3 h6 19. h3 Qa5 {Not much happened in this game.  Weighted Error Value: White=0.12 (very precise) /Black=0.08 (flawless)} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "10.2"]
[White "Cuenca Jimenez, Jose Fernando"]
[Black "Delgado Ramirez, Neuris"]
[Result "1/2-1/2"]
[ECO "B92"]
[WhiteElo "2552"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,69,27,6,45,38,66,57,50,63,52,52,56,51,38,43,43,45,39,7,31,-20,-37,-15,-29,-19,-27,-36,-36,-39,-40,-38,-33,-41,0,0,0,0,10,4,18,8,47,51,51,56,34,33,34,31,55,30,37,0,52,0,25,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. Be3 b6 {B92: Sicilian Najdorf: 6 Be2.} 9. g4 h6 {[#]} 10. h4 $146 {[%cal Bh2h4,Bh4g5][%mdl 32] White is more active.} ({Predecessor:} 10. f4 exf4 11. Bxf4 Bb7 12. Bf3 Nh7 13. Qd4 Ng5 14. Bxg5 hxg5 15. Nd5 Bxd5 16. Qxd5 Nd7 {½-½ (53) Keiper,R (1520)-Karas,N (2103) San Francisco 2011}) 10... Bb7 {White is slightly better.} 11. Bf3 Nbd7 12. g5 hxg5 13. hxg5 Rxh1+ 14. Bxh1 Nh7 {[%cal Bf6h7,Bh7g5,Bg5e6][%mdl 32]} 15. Qh5 Ndf8 {[%cal Re7g5]} 16. O-O-O (16. g6 {with more complications.} fxg6 17. Qe2 Bg5 18. O-O-O Bxe3+ 19. Qxe3 Ne6 20. Qd2) 16... Bxg5 17. Bxg5 (17. f4 $14 exf4 18. Bd4) 17... Qxg5+ $11 18. Qxg5 Nxg5 19. Rxd6 Nd7 20. Nd2 Ke7 21. Rd3 Rh8 22. Bg2 Ne6 23. Rh3 Rc8 (23... Rh6 $15 {deserves consideration.}) 24. Bf1 Nf4 25. Rh7 Rg8 26. a4 Nf6 27. Rh1 Rc8 28. f3 g6 29. Nc4 Nd7 30. Ne3 Nc5 31. Bc4 Nd7 32. Bb3 Bc6 33. Bc4 Bb7 34. Bb3 Bc6 35. Bc4 {Weighted Error Value: White=0.10 (very precise) /Black=0.08 (flawless)} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "10.3"]
[White "Bachmann, Axel"]
[Black "Mekhitarian, Krikor Sevag"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "2594"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,56,-27,-39,-32,-37,-43,-46,-66,-75,-48,-52,-48,-83,-27,-83,-81,-80,-72,-87,-56,-111,-97,-240,-271,-259,-267,-365,-369,-383,-333,-332,-262,-670,-656]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O c5 5. d3 Nc6 6. Nbd2 Be7 7. e4 O-O 8. e5 Nd7 9. Re1 Qc7 10. Qe2 b5 11. h4 a5 12. Nf1 Ba6 {12...Ba6 is better than 12...b4.} 13. Bf4 Rfc8 {C00: French: Unusual White 2nd moves.} 14. Ne3 {[%cal Oe3d5]} Qd8 15. h5 {[%cal Oe3d5]} h6 {Black is slightly better.} 16. Ng4 Bf8 17. c3 a4 {[#]} 18. a3 $146 ({Predecessor:} 18. Qc2 a3 19. bxa3 Qa5 20. Qc1 Kh7 21. Rb1 c4 22. d4 Qxa3 23. Qxa3 Bxa3 24. Ne3 {0-1 (59) Cosentino,A (1918)-Delizia,C ICCF email 2011}) 18... Na5 (18... b4 $17) 19. Ne3 (19. Qe3 $11 {remains equal.}) 19... Nb6 $17 20. Nd2 Nc6 {[%cal Ba5c6,Bc6d4,Bd4f3][%mdl 32]} 21. Nc2 Ra7 22. g4 (22. Nf3 $15) 22... b4 {[%cal Bb5b4,Bb4b3][%mdl 32] Threatens to win with ...b3.} (22... d4 {feels hotter.} 23. Bxc6 dxc3 24. Be4 Nd5 25. Qf3 Nxf4 26. Qxf4 cxd2 27. Qxd2 Rd7) 23. Nf3 {Now White is beyond hope.} (23. Red1 $17 {was called for.}) 23... b3 $19 24. Ne3 d4 25. cxd4 Nxd4 26. Qd2 Nxf3+ 27. Bxf3 Qxd3 28. Qa5 {[#]} (28. Qxd3 Bxd3 29. Rac1) 28... Nc4 {Weighted Error Value: White=0.55/Black=0.17 (very precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "10.4"]
[White "Di Berardino, Diego Rafael"]
[Black "Hungaski, Robert"]
[Result "0-1"]
[ECO "D40"]
[WhiteElo "2480"]
[BlackElo "2521"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,68,-6,-2,-2,3,0,16,10,26,29,29,20,54,-53,-42,-47,-50,-57,-65,-72,-38,-45,-52,-56,-4,-8,-7,-20,-21,-21,-24,-33,-25,-30,-14,-17,-21,-19,-15,-66,-61,-70,0,-31,0,-107,-116,-2615,-2347,-29984,-29984]} 1. d4 d5 2. c4 e6 3. Nc3 c5 4. e3 Nf6 5. Nf3 Nc6 6. a3 a6 7. dxc5 Bxc5 8. b4 Bd6 9. Bb2 O-O 10. Qc2 {10.Rc1 is the modern continuation.} Qe7 11. Rd1 {[%cal Rc4d5] D40: Queen's Gambit Declined: Semi-Tarrasch with 5 e3.} dxc4 12. Bxc4 b5 13. Bd3 {Black must now prevent Ne4. The position is equal.} Bb7 14. Ne4 Nxe4 15. Bxe4 Rac8 {[%cal Oc6b4]} 16. Qb1 (16. Bxh7+ $14 Kh8 17. Rxd6 (17. Qc3 $2 Ne5 $19) 17... Qxd6 18. Qe4) 16... f5 $15 {[#]} 17. Bd3 $146 ({Predecessor:} 17. Bc2 a5 18. O-O axb4 19. a4 bxa4 20. Bxa4 Na5 21. Qd3 Nc4 22. Ba1 {½-½ (47) Popov,R (2050)-Shukh,N (2377) Saratov 2008}) 17... a5 18. bxa5 Nxa5 19. Bxb5 Nc4 ({Don't play} 19... Bxa3 20. Bxa3 Qxa3 21. O-O Bxf3 22. gxf3 $11) 20. Bxc4 Rxc4 21. Be5 Bxa3 (21... Bxe5 $1 $15 22. Nxe5 {[#]} Bxg2 $1) 22. O-O $11 Bd5 23. Rd4 Rc5 {And now ...Bxf3 would win.} 24. Bg3 Rfc8 $36 {[%mdl 2048] Black is pushing.} 25. Rdd1 Rc2 26. Be5 Qf7 27. h3 Qg6 {Strongly threatening ...Bxf3.} 28. Bg3 h6 29. Qa1 ({Better is} 29. Nd4 $11 Rb2 30. Qd3 Qxg3 31. fxg3 Rxg2+ 32. Kh1 Rxg3+ 33. Nf3 (33. Kh2 Rg2+ 34. Kh1 Rd2+ 35. Kg1 Rxd3 $17) 33... Rxf3 34. Rxf3 (34. Kg1 $2 Rg3+ 35. Kh2 Bd6 $19) 34... Bxf3+ 35. Kh2 Bxd1 36. Qxd1) 29... Bb2 {Black is more active. A strong pair of Bishops.} 30. Qa5 R8c5 (30... Bf6 $15) 31. Qb6 (31. Qa7 $5 {[%cal Rf3e1]}) 31... Kh7 {Threatens to win with ...Bxf3.} 32. Rb1 (32. Ne1 $11 {remains equal.}) 32... Bf6 $17 33. Rfd1 $2 {[%mdl 8192]} (33. Kh2 $17) 33... Bxf3 $19 34. gxf3 {[#]} Rxf2 $1 {[%mdl 512] Weighted Error Value: White=0.68/Black=0.12 (very precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "10.5"]
[White "Rodriguez Vila, Andres"]
[Black "Cubas, Jose Fernando"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2473"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,47,30,19,41,47,47,35,33,41,27,25,38,20,74,77,67,67,245,247,246,249,243,239,248,241,487,493,650,667,717,695,1081,792,909,902]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 g6 7. g4 {[%cal Bg2g4,Bg4g5][%mdl 32]} Bg7 8. Bg2 h5 {[%cal Rh5g4] B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 9. g5 Nfd7 10. O-O Nc6 {White is slightly better.} 11. Nde2 {[%cal Bd4e2,Be2f4,Bf4h5,Bh5f6][%mdl 32]} b5 12. f4 {[%cal Bf2f4,Bf4f5][%mdl 32] [#]} O-O $146 ({Predecessor:} 12... Bb7 13. f5 Qb6+ 14. Kh1 Bxc3 15. Nxc3 Nce5 16. Nd5 Bxd5 17. exd5 Rc8 18. c3 b4 {1-0 (41) Faridani,A (2368)-Menendez Rodriguez,G (2309) ICCF email 2018}) 13. f5 Nce5 (13... Bxc3 $11 14. Nxc3 Bb7) 14. Nf4 $16 Bb7 15. Ncd5 Nb6 $2 {[#] Black cannot hold the game after this.} (15... Rc8 $14) 16. f6 $1 $18 exf6 17. gxf6 Bxf6 18. Nxf6+ Qxf6 19. Nxh5 Qh4 {[#]} (19... Qe6) 20. Nf6+ {White is clearly winning.} Kg7 21. Qxd6 Nbc4 22. Qe7 Rh8 {[%cal Ob7e4] Prevents Ne8+.} 23. Qxb7 Rad8 24. Qe7 {Weighted Error Value: White=0.04 (flawless) /Black=0.70} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "10.6"]
[White "Fier, Alexandr"]
[Black "Cadilhac, Igor Tokuichi Kikuch"]
[Result "1/2-1/2"]
[ECO "C24"]
[WhiteElo "2572"]
[BlackElo "2325"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,99,15,17,10,25,23,14,20,30,30,46,35,29,20,32,31,50,25,31,17,28,0,0,-22,-10,-22,0,0,-15,-34,0,0,-3,-13,-17,-6,0,-9,-35,0,0,0,0,-8,-19,-9,0,-2,0,0,58,40,77,55,94,94,91,69,109,107,167,0,0,0,0,0,4,6,191,31,36,-7,0,-22,-6,-6,-6,-91,-87,-75,-11,-8,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Nf3 Be7 5. O-O d6 6. a4 {C24: Bishop's Opening: 2...Nf6.} a5 7. Nc3 O-O 8. h3 Nbd7 9. Be3 h6 10. d4 {[#]} Nxe4 $146 ({Predecessor:} 10... Qc7 11. Qd2 Re8 12. Bxh6 gxh6 13. Qxh6 Nh7 14. Qg6+ Kh8 15. Bxf7 Rf8 16. dxe5 dxe5 {0-1 (29) Kaminski,R (1762)-Hirschinger,T (1997) Playchess.com INT 2020}) 11. Nxe4 d5 12. Ng3 dxc4 13. dxe5 Qc7 14. Bf4 {[%cal Oe5e6]} Nc5 15. Qc1 {[%cal Of4h6]} Qd7 16. Ne2 Qf5 17. Nfd4 Qh5 18. Re1 Rd8 19. Bh2 Bg5 20. f4 Bh4 21. Rf1 {[#]} Bxh3 22. gxh3 Qg6+ 23. Kh1 Qe4+ 24. Rf3 Ne6 25. Nc3 $1 Qxd4 26. f5 $132 {[%mdl 2048] White is not holding back} Ng5 27. Rf4 Qxe5 {[%cal Ob7b5] next ...b5! is good for Black.} 28. f6 Rd4 {Hoping for ...Rxf4.} 29. Rxh4 Qxf6 (29... Qf5 $1 $11 30. Rf4 Qxh3) 30. Rf4 $14 Qd8 31. Qf1 Rd2 32. h4 $1 ({But not} 32. Rxc4 b5 33. Rg4 (33. axb5 cxb5 34. Rg4 b4 $17) (33. Rxc6 b4 $17) 33... b4 $11) (32. Qxc4 Rxc2 33. Raf1 Qd7 $17) 32... Ne6 33. Rf2 ({Of course not} 33. Rxc4 Rxc2 34. Be5 Rxb2 $11) 33... Rd4 34. Bg3 Qb6 (34... Qe7 $16) 35. Rxf7 $2 (35. Re1 $1 $18) 35... Qxb2 $11 36. Rf3 Qxc2 37. Re1 Qg6 38. Qh3 Nf8 {[#]} (38... Re8 $11 {and Black stays safe.}) 39. Bf2 $2 (39. Be5 $1 $18 {[%cal Re5d4]} Rg4 40. h5) 39... Rd3 $14 40. Re7 (40. Rg1 $14 {is superior.} Rxf3 41. Qxf3) 40... Qf6 41. Rxf6 {White wants to mate with Qg4. Really sharp!} Rxh3+ 42. Kg2 {aiming for Rff7.} Rxc3 43. Rff7 {[#]} (43. Rd6 $1 $11 Rd3 44. Bd4 Rxd4 45. Rxd4) 43... Ne6 $1 $17 44. Rf5 {[#]} Rf8 45. Rxf8+ $11 {The position is equal.} Nxf8 46. Bd4 $1 Rd3 47. Rxg7+ Kh8 {White must now prevent ...Ne6.} 48. Rg4+ Kh7 {...h5 is the strong threat.} 49. Rg7+ Kh8 {Threatens to win with ...Ne6.} 50. Rg4+ {Weighted Error Value: White=0.20 (precise) /Black=0.21 (precise)} 1/2-1/2

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "10.7"]
[White "Gazel, Frederico"]
[Black "Lima, Darcy"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2279"]
[BlackElo "2507"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,89,-7,-21,-10,-22,0,-10,0,-39,0,5,42,42,50,52,56,54,69,60,74,62,106,74,93,104,89,95,93,99,87,83,179,181,178,157,306,166,356,372,349,133,387,273,487,451,583,599,633,598,583,582,578,582,1405,772,786,761,781,845,833,829,816,811,1093,900,974,956,997,985,966,961,1541,2742,2264,1897]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. c3 Qb6 6. Qb3 c4 7. Qc2 Bf5 8. Qc1 h6 9. Nbd2 $1 {[%mdl 4] outshines the older 9.h3.} e6 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 10. b3 Qa5 11. a4 $1 {[%cal Ba2a4,Ba4a5,Ba5a6][%mdl 32]} (11. bxc4 $2 Ba3 12. Qd1 (12. Nb3 $2 Bxc1 13. Nxa5 Bb2 $19) 12... Qxc3 $19) 11... cxb3 {The position is equal.} 12. Qb2 Qb6 (12... Nh5 $15) 13. Nxb3 $11 {[#]} Rc8 $146 ({Predecessor:} 13... Ne4 14. a5 Nxa5 15. Rxa5 Nxc3 16. Qxc3 Bb4 17. Bb5+ Qxb5 18. Rxb5 Bxc3+ 19. Ke2 b6 {1-0 (31) Nadir,S (2141)-Almassri,A (1794) Hammamet 2020}) 14. a5 Qd8 15. a6 $36 {[%mdl 2048] Black is under pressure.} ({Reject} 15. Bb5 a6 16. Ba4 Be7 $11) 15... b6 16. Bb5 Nd7 17. Qa2 g5 18. Bg3 f6 (18... g4 $1 $14) 19. Rc1 Kf7 20. Qa4 Ndb8 21. O-O {White is more active.} Bd6 22. c4 dxc4 23. Bxc4 {aiming for d5.} Ne7 {Prevents d5.} (23... Bxg3 $16 24. fxg3 (24. hxg3 Ne7 $16) 24... Kg7) 24. Nfd2 $18 Bg6 {[#]} 25. e4 $1 {[%cal Oc4e6]} Nbc6 {[#]} (25... Bxg3 $16 26. fxg3 Rf8) 26. Bb5 (26. Bxe6+ $142 $1 {[%mdl 512]} Kxe6 27. d5+ Kf7 28. dxc6) 26... Nb8 $2 (26... Bxg3 27. fxg3 Na5) 27. Bxd6 Qxd6 28. Nc4 $2 (28. e5 $18 {is the precise move to win.} Qd8 29. Nc4) 28... Qd8 {[%mdl 8192]} (28... Rxc4 $16 29. Bxc4 (29. Qxc4 Bxe4 30. Qc7 Qb4 $16) 29... Bxe4) 29. Qa3 Kg7 $2 (29... Rxc4 {was called for.} 30. Bxc4 (30. Rxc4 Bxe4 31. Rcc1 Bc6 $16) 30... Bxe4 31. Bxe6+ Kxe6) 30. Nd6 {White is clearly winning.} Rxc1 31. Rxc1 {[%cal Bf1c1,Bc1c7,Bc7a7,Ba7b7,Bb7b6,Bb6b7][%mdl 32]} ({Not} 31. Nxc1 Rf8 $16) 31... Rh7 32. Nb7 Qf8 33. Rc7 {Black must now prevent d5.} Kh8 34. f3 Be8 35. Bxe8 Qxe8 36. Nd6 $1 {[%csl LRa7,LRe8]} Qd8 37. Rxa7 Nbc6 38. Rb7 Qa8 39. Rxb6 Na7 40. Qb4 {Rb8+ is the strong threat.} Nec6 {Inhibits Rb8+.} 41. Qc4 Re7 42. Rb7 Qf8 43. Nb5 {Hoping for Nxa7.} Qd8 44. Nxa7 Nxa7 45. Qc5 {[%csl LRa7,LRe7] Black did not feel at home in the position after the opening.  Weighted Error Value: White=0.28 (precise) /Black=0.48} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "10.8"]
[White "Marra, Eduardo da Costa"]
[Black "Matsuura, Everaldo"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2222"]
[BlackElo "2441"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,89,0,0,0,0,10,36,26,56,52,87,38,39,32,35,34,69,78,100,66,57,47,100,98,105,88,91,80,82,30,28,12,18,0,0,-5,-13,-93,-50,-31,11,8,53,27,72,57,65,0,0,0,0,0,54,59,47,54,50,58,85,64,69,0,0,0,0,7,187,216,277,275,290,276]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. Re1 O-O 7. d4 cxd4 8. cxd4 d5 9. e5 Ne4 10. Bxc6 bxc6 11. Be3 $1 {[%mdl 4] is recently more successful than 11.Nbd2. B31: Sicilian: 2...Nc6 3 Bb5 g6.} Qb6 12. Qc1 Rb8 13. b3 {White is slightly better.} f6 14. Nc3 Bg4 15. Na4 {[#]} (15. Nxe4 $16 dxe4 16. Nd2) 15... Qb5 $146 {[%cal Oc6c5]} ({Predecessor:} 15... Qc7 16. exf6 exf6 17. Nd2 Bd7 18. Nxe4 dxe4 19. Bf4 Qa5 20. Bxb8 Rxb8 21. Nc5 Bf5 22. Nxe4 {1-0 (38) Fus,J (2420)-Kislov,O (2249) Chess.com INT 2021}) 16. exf6 exf6 ({Weaker is} 16... Bxf6 17. Ne5 Bxe5 18. dxe5 $16) 17. Nd2 {Pair of Knights!} Nd6 18. h3 Bf5 19. Bf4 Rbd8 20. Qc3 Ne4 (20... Qb7 $14) 21. Nxe4 $16 dxe4 22. Nc5 {Threatens to win with Bc7.} Qb6 {Prevents Bc7.} 23. Rad1 g5 24. Bh2 {White is much more active.} (24. Be3 $16) 24... Rfe8 $11 25. Rd2 Bg6 26. Red1 Rd5 27. Na4 Qb7 28. Nb2 {[#]} (28. Nc5 $11 {keeps the balance.} Qc8 29. Re1) 28... f5 (28... Bf8 $1 $17 {...Bb4 is the strong threat.} 29. Qc4 Qb5) 29. Be5 $1 $15 Bxe5 (29... Bf8 $15 30. Qg3 h6) 30. dxe5 $11 Rexe5 (30... Bh5 $11) 31. Nc4 $36 {[%mdl 2048] Black is under pressure.} Rxd2 (31... Re6 $11 {is more appropriate.}) 32. Rxd2 $16 Rd5 33. Ne3 (33. Qf6 $14) 33... Rxd2 $11 34. Qxd2 Qe7 {Inhibits Qd8+.} 35. Qd4 h6 ({Better is} 35... h5 $11) 36. Qc4+ $14 Kg7 37. Qxc6 f4 38. Ng4 h5 39. Qc3+ Kg8 40. Nf6+ (40. Ne5 $14 Kg7 41. Qd4) 40... Kf7 $11 41. Nd5 Qd6 42. Qc4 {aiming for Nxf4+.} Qe6 $2 {[#]} (42... Kf8 $11 {and Black has nothing to worry.}) 43. Qc7+ $18 Kf8 44. Qd8+ Kf7 45. Qxg5 {Weighted Error Value: White=0.14 (very precise) /Black=0.26 (precise)} 1-0

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "10.9"]
[White "Brito, Luismar"]
[Black "Bittencourt, Jorge"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "2215"]
[BlackElo "2408"]
[Annotator "TA"]
[PlyCount "144"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,144,0,0,0,0,0,0,0,22,22,22,12,26,-15,0,-72,-17,-27,-10,-34,-31,-61,-11,-22,-1,-17,0,0,39,28,37,0,0,0,0,0,-2,-59,-60,-50,-49,-55,-47,-64,-63,-73,-57,-58,-56,-95,-98,-147,-147,-280,-280,-317,-280,-280,-280,-280,-280,-272,-272,-272,-272,-272,-272,-272,-272,-281,-256,-364,-296,-510,-500,-499,-506,-507,-502,-501,-482,-515,-518,-517,-511,-500,-503,-501,-501,-541,-467,-703,-735,-966,-901,-856,-739,-636,-582,-1260,-618,-602,-602,-529,-464,-477,-451,-672,-660,-817,-792,-1022,-988,-1345,-1187,-1541,-1502,-2533,-2245,-4114,-3064,-29958,-12850,-29978,-29955,-29974,-29973,-29979,-29980,-29980,-29981,-29981,-29982,-29981,-6133]} 1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. c4 d5 5. cxd5 Nxd5 6. a3 Bd6 7. d3 {A01: Nimzowitsch-Larsen Opening.} O-O 8. Nf3 {8.Nd2 is more advanced technology.} f5 9. Nbd2 {The position is equal.} Nb6 10. Be2 Qe7 11. Qc2 Bd7 {[#]} 12. e4 $146 (12. b4 {feels stronger.}) ({Predecessor:} 12. O-O Rf6 13. b4 a6 14. Nc4 Rh6 15. g3 Rf8 16. h4 Nxc4 17. dxc4 e4 18. Ng5 {½-½ (52) Eremin,N (2164)-Salati,P (2111) ICCF email 2007}) 12... a5 13. Nf1 (13. O-O $11 {keeps the balance.}) 13... f4 ({Better is} 13... Rae8 $17) 14. N1d2 $11 Rad8 15. Bc3 Bg4 16. Qb2 Rfe8 {Black is more active.} ({Black should play} 16... Nc8 $15) 17. h3 Bxf3 18. Nxf3 Bc5 19. O-O {[%cal Ob3b4]} Nd4 (19... Kh8 {is more complex.} 20. Rfc1 h6 21. Bxa5 Nxa5 22. b4 Bxf2+ 23. Kxf2 Nc6) 20. Nxd4 Bxd4 21. Bxd4 Rxd4 22. Rfc1 c6 $1 23. Qc3 Ra8 24. Qc5 (24. b4 $11) 24... Qxc5 $15 25. Rxc5 Nd7 26. Rc3 Kf7 27. Kf1 Ke7 28. Rac1 Kd6 29. Ke1 g6 30. Rc4 {White is now going downhill.} Rxc4 31. dxc4 $17 {[%mdl 4096] Endgame KRB-KRN} (31. bxc4 $142 Nc5 32. Rb1) 31... Nc5 {[%csl LRb3,LRe4]} 32. f3 (32. Rb1 $17) 32... Nxb3 $19 33. Rb1 Nc5 34. Kd2 Kc7 35. Kc3 Rd8 36. Kc2 Rd4 37. Kc3 b6 38. Kc2 Nd7 39. Kc3 Kd6 40. h4 Kc5 41. a4 (41. Rg1 $142) 41... Nf6 42. Rg1 $2 {[#]} (42. Rh1) 42... Nh5 43. Bd3 Ng3 {Prevents Rh1.} 44. Ra1 h6 45. Rb1 g5 46. hxg5 hxg5 47. Rd1 Rd6 48. Rd2 Rd8 49. Rb2 Rh8 50. Rd2 Rh2 51. Bc2 (51. Rb2 $142 Rh1 52. Rd2) 51... Nf1 52. Rd8 Rxg2 53. Re8 Kd6 54. c5+ Kxc5 55. Rxe5+ Kd6 56. Re8 Rf2 57. e5+ Kd7 58. Rg8 Rxf3+ 59. Kd4 (59. Bd3 $142 Rg3 60. Rg6) 59... c5+ 60. Ke4 Rc3 61. Bb1 Nd2+ 62. Kd5 Nxb1 {KRN-KR} 63. Rg7+ Kd8 64. e6 Rd3+ 65. Ke5 Nc3 {[#] ( -> ...Rd5+)} 66. Kf6 Nd5+ 67. Kf7 Kc7 {Black mates.} 68. Rxg5 Kd6 69. Rg8 Re3 70. Rd8+ Kc6 71. Rc8+ Nc7 72. e7 f3 {Weighted Error Value: White=0.43/Black=0.12 (very precise)} 0-1

[Event "VIII Floripa Open 2022"]
[Site "Florianopolis"]
[Date "2022.01.30"]
[Round "10.10"]
[White "Languidey, Simon Alejandro"]
[Black "Alboredo, Julia"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "2403"]
[BlackElo "2200"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2022.01.24"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,71,0,21,11,8,16,28,16,25,32,42,17,37,-75,0,0,0,0,-16,-9,0,0,0,0,39,38,71,20,22,20,32,35,32,15,15,0,0,0,0,0,0,-10,-14,-67,0,0,0,0,29990,29991,29991,29992,29992,29993]} 1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. Nf3 Nc6 7. O-O Be7 8. d3 O-O 9. Be3 Re8 10. Rc1 Bf8 11. Bg5 {A29: English Opening: Four Knights Variation with 4 g3.} f6 12. Be3 Nd4 {[#]} 13. Bxd4 $146 {White has an edge.} ({Predecessor:} 13. a4 a5 14. Bxd4 exd4 15. Nb5 c5 16. Nd2 Bg4 17. Bxb7 Rb8 18. Bf3 Bd7 19. b3 Bxb5 20. axb5 {1-0 (36) Gukesh,D (2520)-Alshameary Puente,I (2442) Evora 2019}) 13... exd4 14. Nb5 c5 15. b4 $1 a6 {[#]} 16. Na3 (16. Nd6 $1 $14 {keeps the upper hand.} Bxd6 17. bxc5) 16... Nd5 (16... cxb4 $17 17. Nc2 Be6 18. Nfxd4 Bxa2 19. Bxb7 b3) 17. bxc5 $11 Nc3 18. Rxc3 dxc3 19. Qb3+ Kh8 20. Qxc3 Rxe2 21. Nc2 Rxc2 22. Qxc2 {aiming for d4.} Bf5 {[#]} 23. Rd1 (23. Qc1 $1 $16) 23... Rc8 {[%cal Ba8c8,Bc8c5,Bc5a5,Ba5a3][%mdl 32]} 24. Qb3 {Black must now prevent d4.} Rxc5 25. Qxb7 Ra5 26. Qf7 Bg6 {This bishop pair is nice.} 27. Qc4 Qd7 28. d4 Bf7 29. Qc3 Ra3 30. Qe1 Rxa2 31. Rb1 (31. d5 $11) 31... g5 ({Better is} 31... Kg8 $15) 32. Nxg5 fxg5 33. Qe5+ Bg7 $2 {[%mdl 8192]} (33... Kg8 $11 34. Qxg5+ Kh8) 34. Rb8+ {White mates.} Bg8 {[#]} 35. Bd5 $1 {[%csl Gd5][%cal Rb8g8]} ({Not} 35. Rxg8+ Kxg8 36. Qb8+ (36. Bd5+ Kf8 $11) 36... Bf8 37. Qb3+ Kg7 38. Qxa2 Qxd4 $16) 35... Ra1+ 36. Kg2 {Weighted Error Value: White=0.13 (very precise) /Black=0.49} 1-0

