[Event "?"] [Site "?"] [Date "2020.11.16"] [Round "?"] [White "1e4 c5 2 Nf3 a6 3 d4"] [Black "line 1 6 Nf3"] [Result "*"] [ECO "B28"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "34"] [EventDate "2020.11.16"] [SourceVersionDate "2019.10.27"] 1. e4 c5 2. Nf3 a6 3. d4 $6 cxd4 4. Nxd4 Nf6 5. Nc3 (5. Bd3 Nc6 6. Nxc6 dxc6 7. h3 (7. O-O e5) 7... e5 8. Be3 Be6 9. Nd2 b5 10. O-O Nd7 11. f4 exf4 12. Bxf4 Be7 13. Nf3 O-O 14. c3 Qb6+ 15. Kh1 Rad8 $11) 5... e5 {White cannot play Ndb5} 6. Nf3 {White tends to retreat the knight on f3 or b3} (6. Nde2 Bc5 7. Ng3 d6 8. Be2 O-O 9. O-O Nc6 10. Kh1 Bd4 11. Bg5 Bxc3 12. bxc3 h6 13. Be3 d5 14. f3 Be6) 6... Bb4 7. Bd2 (7. Nxe5 Qe7 8. Qd4 Bc5 9. Qc4 Qxe5 10. b4 Bd4 11. Qxc8+ Ke7 12. Qxh8 Bxc3+) 7... d6 {White cannot take control of the d5 square} 8. Bd3 (8. Bc4 Qc7 9. Qe2 Bxc3 10. Bxc3 O-O 11. O-O Nbd7 12. Bd3 Nc5 13. Rfe1 Na4 14. Qd2 Bg4) (8. Bg5 Qc7) 8... Nbd7 {the knight is going to c5 where it will attack e4} 9. O-O Nc5 10. Re1 (10. Qe2 O-O 11. h3 b5) 10... O-O 11. a3 (11. h3 b5) (11. Nd5 Nxd5 12. exd5 Nxd3 13. cxd3 Bc5 14. h3 Bf5 $15) 11... Bxc3 12. Bxc3 Na4 {a key move as White cannot keep the bishops pair} 13. Qd2 Bg4 (13... Qc7 14. Rab1 Bd7) 14. Nh4 Qc7 15. h3 Be6 16. Nf5 (16. Rab1 Rfc8) 16... Bxf5 17. exf5 Rfc8 {Black has the upper hand} * [Event "?"] [Site "?"] [Date "2020.11.16"] [Round "?"] [White "1e4 c5 2Nf3 a6 3d4?!"] [Black "6 Nb3 variation"] [Result "*"] [ECO "B28"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "30"] [EventDate "2020.11.16"] [SourceVersionDate "2019.10.27"] 1. e4 c5 2. Nf3 a6 3. d4 $6 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 {the most direct} 7. Bd3 d5 {equalizing for black} (7... Bxc3+ $5 8. bxc3 d6 9. c4 O-O 10. Be3 Be6 11. f3 Nbd7 12. O-O Rc8 13. Nd2 (13. h3 Bxc4 14. f4 d5) 13... Nh5 14. g3 Nhf6 15. a4 b6 16. Qe2 Qc7 {Black will play Rfe8 and Nd7-c5}) 8. exd5 Nxd5 9. Bd2 Nxc3 10. bxc3 Bd6 11. O-O (11. Qh5 $5 Nd7 12. O-O Nf6 13. Qh4 O-O 14. Rad1 (14. Bg5 h6 15. Bxh6 gxh6 16. Qxh6 e4 $17) 14... e4 $1 15. Bxe4 Nxe4 16. Qxe4 Re8 17. Qf3 Qc7 $44 {Black has compensation for the pawn with the bishop pair and the damage white pawn structure}) 11... O-O {Black has damaged white's pawn structure while keeping the bishop pair} 12. c4 (12. Be3 Qc7) 12... Nc6 13. Be4 Be6 14. Qe2 Qe7 {Black has the easier position to play} 15. Rfd1 Rac8 * [Event "?"] [Site "?"] [Date "2020.11.16"] [Round "?"] [White "1e4 c5 2 Nf3 a6 "] [Black "3 c3!? lines"] [Result "*"] [ECO "B22"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "34"] [EventDate "2020.11.16"] [SourceVersionDate "2019.10.27"] 1. e4 c5 2. Nf3 a6 3. c3 d5 (3... e6 $5 4. d4 d5 5. e5 Bd7 (5... Nc6 6. Be2 Bd7 7. O-O Rc8 8. a3 cxd4 9. cxd4 Nge7) 6. Bd3 Nc6 7. O-O cxd4 8. cxd4 Qb6) 4. exd5 Qxd5 5. d4 Nf6 6. Be3 (6. Be2 e6 7. O-O cxd4 8. cxd4 Nc6 9. Nc3 Qd6 10. Bg5 Be7 11. Qd2 O-O 12. Rfd1 Nd5 13. Ne4 Qd8 14. Rac1 Bxg5 15. Nexg5 Nce7 16. Qd3 Nf5 17. Ne4 b6 18. Ng3 Nh4 19. Nxh4 Qxh4 20. Bf3 Bb7 $11 {playing against the isolated pawn}) 6... cxd4 7. cxd4 e6 8. Nc3 Qd6 {playing against the isolated pawn} (8... Qa5 $5 9. Bd3 Nc6 10. O-O Bd6 11. a3 (11. Rc1 $5 O-O (11... Qh5 12. h3) 12. Ne4 Nxe4 13. Bxe4 Ne7 14. Ne5 Bxe5 15. dxe5 Qxe5 16. Qd3 f5 17. Bf3 $14 ) 11... O-O 12. b4 Qh5 {switching from a5 to h5} 13. Rc1 (13. Be2 $6 Ng4 $1 14. g3 f5 $1) (13. h3 Ne7 14. Bg5 Nfd5 15. Ne4 Bf4) 13... Ne7 14. Ne4 Nxe4 15. Bxe4 Rd8) 9. Bd3 Nc6 10. O-O Be7 11. a3 O-O 12. Rc1 (12. Qc2 Bd7 (12... Rd8 13. Rad1 h6 14. Qc1 Bf8 15. Bf4 Qd7 16. Rfe1) 13. Rad1 Rac8 14. Rfe1 b5) 12... Rd8 { with idea e6-e5} 13. Re1 (13. Na4 e5 14. Nb6 exd4 15. Bg5 Rb8 16. Nc4 Qc7 $11) 13... e5 14. Nxe5 Nxe5 15. dxe5 Qxd3 16. Qxd3 Rxd3 17. exf6 gxf6 * [Event "?"] [Site "?"] [Date "2020.11.16"] [Round "?"] [White "1e4 c5 2 Nf3 a6"] [Black "3 c4 lines"] [Result "*"] [ECO "B41"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "44"] [EventDate "2020.11.16"] [SourceVersionDate "2019.10.27"] {[%evp 0,44,23,19,52,36,41,22,39,36,24,30,32,20,28,34,58,47,45,70,62,50,82,44, 38,45,38,43,43,44,35,35,34,23,23,22,27,17,20,22,33,9,13,24,13,-6,-15]} 1. e4 c5 2. Nf3 a6 3. c4 e6 (3... b6 4. d4 cxd4 5. Nxd4 e6 6. Nc3 Bb7) 4. d4 (4. Nc3 b6 5. d4 cxd4 6. Nxd4 Bb7 7. Be2 Nf6 8. f3 d6 {classic hedgehog position}) 4... cxd4 5. Nxd4 Nf6 6. Nc3 Bb4 $5 (6... Qc7 $5 7. a3 b6 8. Be3 Bb7 9. f3 d6 10. Be2 Be7 11. O-O Nbd7 12. Rc1 O-O {classic hedgehog} 13. b4 Rac8 14. Qd2 Qb8 15. Rfd1 Rfe8 16. Kh1 Bd8 17. Nb3 Bc7 18. Bf4 Ne5 19. Bxe5 dxe5 20. c5 Red8 21. Qe3 Nd7 22. c6 Bxc6 23. Bxa6 Bb7 24. Bxb7 Qxb7 25. Nb5 Nf8) 7. Qd3 (7. Bd3 Nc6 8. Nxc6 dxc6 9. e5 Qa5 10. exf6 Bxc3+ 11. bxc3 Qxc3+ 12. Bd2 Qxd3 13. fxg7 Rg8 14. Bh6 Qe4+) (7. Qf3 Bxc3+ 8. bxc3 d6 9. Ba3 O-O) 7... O-O (7... Qc7 8. Be2 (8. Nc2 $1 Bd6 (8... Be7 9. Qg3 d6 10. Qxg7 Rg8 11. Qh6 Bd7) 9. g3 b6 10. Bg2 Bb7 11. O-O Nc6 12. Rd1) 8... Nc6 9. O-O O-O 10. Bg5 Be7) 8. e5 $1 (8. Be2 d6 9. O-O Nbd7) 8... Ne8 9. Bf4 d6 10. Nc2 (10. exd6 Bxd6 11. Bxd6 Qxd6 12. Be2 Nf6) 10... Bxc3+ 11. Qxc3 dxe5 12. Rd1 Qe7 13. Bxe5 Nc6 14. Be2 Nxe5 15. Qxe5 Bd7 16. Bf3 Rc8 17. Ne3 Bc6 18. Bxc6 Rxc6 19. O-O f5 20. Nd5 Qf7 21. Nf4 Rxc4 22. Rfe1 Nc7 *