Modern Benoni with Bf4 – part17

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Modern Benoni with Bf4 – part17

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Η συνέχεια που θα ασχοληθούμε εδώ είναι η 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Bf4 g6 7. Nf3 Bg7 8. e4 0-0 9. Bd3.

Ο λευκός βάζοντας τον αξιωματικό στο δ3 δημιουργεί ένα πιο επιθετικό setup, υποστηρίζοντας το ε4, αφήνοντας την στήλη ε ανοικτή για τα βαριά κομμάτια και υποστηρίζοντας με τον τρόπο αυτό μελλοντικά ε4-ε5. Από την άλλη ο λευκός μένει πίσω στην ανάπτυξη, επιτρέπει κινήσεις όπως Ιθ5, καθώς και τέμπο στο λευκό αξιωματικό. Αν ο μαύρος δεν αντιδράσει σωστά, τότε ο λευκός θα δημιουργήσει το πλεονέκτημα που ζητά. Με σωστό παιχνίδι ο μαύρος μπορεί να ισοφαρίσει.

rnbq1rk1/pp3pbp/3p1np1/2pP4/4PB2/2NB1N2/PP3PPP/R2QK2R b KQ - 0 9 You must activate JavaScript to enhance chess diagram visualization.

[White "Modern Benoni with Bf4"][Black "7. Nf3 Bg7 8. e4 0-0 9. Bd3"][SetUp "1"][FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Bf4 g6 7. Nf3 Bg7 8. e4 O-O 9. Bd3 {[#] we are going to look only into variations without including a fast a6 a4} Bg4 {with the bishop on d3 this is the most logical move} (9... Qe7 10. h3 (10. O-O {lets black play} Bg4 {with the bishop on d3 this leads to a very easy game for black.}) 10... a6 11. a4 {transposes to a main line of modern benoni which will be covered later in a6 a4 lines.}) (9... Re8 10. O-O Bg4 11. h3 Bxf3 12. Qxf3 Nh5 13. Bh2 Bd4 14. a4 {+=}) (9... Na6 10. O-O Re8 11. Re1 Nc7 12. a4 Bg4 13. h3 Bxf3 14. Qxf3 Nh5 15. Bd2 Qe7 16. a5 Bd4 17. Rab1 b6 18. b4 $16) 10. h3 $1 {This is the correct move order. We have basically 2 types of structures. One with a6-a4 and the other one in which black plays a6-b5. With h3 blacks keeps both options open. Castling first weakens the a4-a6 option for white and black can equalize easily.} (10. O-O $6 Nh5 $1 {this equalizes} (10... a6 $6 {although this is a typical benoni move, it loses too much time in this case, since the actual “threat” of b5 makes more harm than good} 11. h3 (11. a4 {this is now not so good. Postponing h3 means that Nh5, hitting the bishop at h4, gets more power since the bishop cannot be kept in that diagonal hitting the d6 pawn.} Nh5 12. Bd2 Qf6 13. Be2 Nf4 14. Bxf4 Bxf3 15. Bg3 Bxe2 16. Qxe2 Nd7 {=}) 11... Bxf3 12. Qxf3 b5 (12... Qe7 {its much better admiting that a6 is not best and continue developing pieces. We will discuss this line as the main line of the position after the correct 10. h3 which forces this line and does not give an option for 10… Nh5}) 13. a4 {this tries to undermine the pawn structure creating c4 available for white} (13. g4 $6 {not attacking. jut protecting h5 in order to play Qg3} Ne8 14. Qg3 $6 {although this is the main idea behind g4, it does not work well for white. Black has simple developing moves that easily equalize.} (14. Kg2 Nd7 15. Qe3 (15. Rae1 Ne5 16. Qe3 Nc7 {black has an easy position}) 15... Ne5 16. Be2 b4 {black is at least equal with easy play.}) (14. Bc2 Nd7 15. Rad1 Ne5 16. Qg3 b4 $15) (14. a4 {too late to get anything from the position} b4) 14... Nd7 {white has no clear plan.} 15. Rab1 (15. Bxd6 $2 Nxd6 16. Qxd6 Be5 $19) (15. Bc2 Ne5 16. Rad1 b4 $15) 15... Ne5 16. Bc2 Nc7) (13. a3 Qb6 14. g4 Nbd7 15. Qg3 c4 16. Bc2 Ne8 17. Be3 (17. Rad1 {to stop Bd4} a5) 17... Bd4 18. Bxd4 Qxd4 19. Kg2 (19. Kh1 {now f5 in the previous line does not work} a5 20. f4 Rb8 (20... Nc7 21. Rad1 Qg7 22. e5 b4 23. Ne4 $14) 21. Rad1 Qg7 22. Qf2 (22. Qe3 b4 23. Na4 Nc7 24. e5 (24. axb4 axb4 25. Rd4 Rfc8 26. Rxc4 Nxd5 $1 {with the queen on e3 this one works} 27. Rxc8+ Rxc8 {=})) 22... b4 23. Na4 bxa3 ( 23... Nc7 24. axb4 axb4 25. Rd4 Rfc8 26. Rxc4 $16 {now Nd5 is not possible}) 24. bxa3 Nc7 25. Qa7 Nc5 $1 26. Nxc5 (26. Qxc7 Nxa4 27. Bxa4 Qc3 {=}) 26... Qc3 {=}) 19... a5 20. f4 Rb8 21. Rad1 Qg7 22. Qe3 f5 23. gxf5 b4 {so the knight wont come to e4} 24. Na4 gxf5+ {=}) (13. Rac1 $5 Qe7 (13... Qb6 $5 {generally the queen is better on b6 than on e7. Less tactics involved on d6 and it supports the advance of the q-side pawns}) 14. Qg3 Rd8 15. Bg5 h6 16. Bd2 Nbd7 17. Rfe1 Re8 18. f4 Nh5 19. Qf3 Bd4+ 20. Kh1 Rac8 21. Bb1 (21. e5 $2 dxe5 22. f5 e4 23. Nxe4 Ne5 $17) 21... c4 22. Rcd1 (22. e5 dxe5 23. f5 e4 24. Nxe4 Ne5 25. Qd1 Bxb2 26. d6 Qd7 27. Rc3 $2 Bxc3 28. Bxc3 Nd3 29. Bxd3 cxd3 30. fxg6 Rxe4 31. gxf7+ Kf8 32. Qxh5 Rxe1+ 33. Bxe1 Qxf7 34. Qxh6+ Ke8 35. Qe3+ Kd7 36. Bg3 {= its just a sample crazy line that demonstates possible complications}) 22... Nhf6 23. Bc1 Bc5 24. a3 Qd8 25. Rf1 $14 {white can slowly build a tactical blow. These are all sample lines and not forced ones , to demonstrate possible lines of play}) (13. Rfe1 Qb6 14. a4 c4 {forced} ({now} 14... b4 { this does not work as in the 13. a4 b4 line because the queen on b6 and the empty c4 square give white a big tempo at attacking d6 with Nd1-e3-c4} 15. Nd1 Nh5 16. Bh2 Nd7 (16... Bd4 $2 17. Ne3 $16) 17. g4 Nhf6 18. Ne3 $16) 15. Be3 ( 15. Bxd6 Qxd6 16. e5 Qd8 17. exf6 Qxf6 {is fine for black}) 15... Qb7 16. Bf1 Nbd7 17. Bd4 Nh5 $1 (17... Rac8 $2 {to support the knight at c5} 18. axb5 axb5 19. Ra7 $16) (17... Rfc8 18. b4 {typical , stopping the knight from reaching c5 } Ne8 19. Bxg7 Nxg7 $14 {the problem now is that black has moved his rook from the f-file, so no f5, and has not achieved playing the knigth at c5}) 18. Qe3 ( 18. Bxg7 Nxg7 19. b4 f5 {= now the rook is on the f-file and f5 is possible}) 18... Bxd4 19. Qxd4 Ng7 (19... Rfc8 20. axb5 (20. b4 cxb3 21. axb5 Qb6 {=}) 20... axb5 21. b4 $14) 20. b4 f5 21. axb5 (21. Be2 f4 {=}) 21... axb5 22. Rxa8 Rxa8 23. f4 fxe4 24. g4 Rf8 25. Rxe4 Nb8 26. Re1 Na6 {=}) 13... b4 (13... c4 14. Be2 (14. Bc2 $1 b4) 14... b4 15. Na2 a5 (15... c3 16. bxc3 b3 17. Nb4 Re8 18. Bd3 Nfd7 19. Bxd6 Bxc3 20. Rac1 Ne5 21. Bxe5 Bxe5 22. Bc4 {+/-}) 16. Bxc4 Nh5 17. Bh2 Bxb2 18. Rab1 $14) 14. Nd1 (14. Nb1 Nh5 15. Bc1 Nd7 $17) 14... Qe7 {the main difference with Re8 is that the Queen protects d6 and black can play Nfd7 and over protect the e5 square.} (14... Re8 15. Ne3 (15. Bh2 $1 {so black wont gain a tempo AFTER the knight leaves d1 and the defence of b2} c4 $1 16. Bb1 Qc7 17. e5 dxe5 18. d6 Qc6 $15) 15... Nh5 16. Nc4 Nxf4 17. Qxf4 Be5 18. Nxe5 Rxe5 19. Rfe1 Nd7 20. a5 Kg7 21. Qd2 Re8 22. f4 Qf6 23. Bc4 h6 24. g3 $14) (14... Qc7 $1 15. Rb1 Nbd7 (15... Nfd7 16. Ne3 Ne5 17. Qe2 Re8 {+=}) 16. Ne3 Nh5 17. Bh2 Ne5 (17... Be5 18. Nc4) 18. Qe2 Nxd3 19. Qxd3 Be5 20. Nc4 {+/-}) ( 14... Nh5 15. Bh2 Bd4 (15... Qe7 $1 16. g4 Nf6 17. Ne3 Nbd7 18. Nc4 Ne8 19. Rae1 Ne5 20. Qe2 Nxc4 21. Bxc4 Bd4 22. b3 a5 (22... Bc3 23. Rd1 a5 24. f4 $16) 23. Kh1 (23. e5 $2 dxe5 24. Bxe5 Bxe5 25. Qxe5 Qxe5 26. Rxe5 Nd6 27. Rc1 Rfd8 $14) 23... Nf6 24. Qd3 Nd7 25. f4 $16) 16. Rb1 (16. Ne3 $2 Bxb2 17. Nc4 Bxa1 18. Rxa1 Nd7 19. Bxd6 Re8 20. e5 {+= with enough compensation for the exchange} ) 16... Qe7 17. Ne3 Nd7 18. Nc4 Ne5 19. Bxe5 Bxe5 20. g3 {+/- with Qh2 and f4 comming}) 15. Ne3 (15. Rb1 Nbd7 16. Ne3 Nh5 17. Bh2 Be5 18. Nc4 Bxh2+ 19. Kxh2 Ne5 {= the Queen on e7 can recapture on e5. This is the main difference between 14…Qe7 and 14…Qc7}) 15... Nfd7 16. Qg3 Ne5 17. Be2 Nbd7 (17... Re8 {the rook should stay at f8 to support f5 counterplay threats} 18. f3 Nbd7 19. Rae1 $16 {for example a sample line can be} Nf6 20. Qh4 (20. Qf2 $1 Nh5 21. Bh2 Nd7 22. g4 Bd4 23. gxh5 Qg5+) 20... Qc7 21. Kh1 Nfd7 22. b3 Bf6 23. Qf2 Bg7 24. Bh2 Nf6 25. Rd1 Re7 26. g4 h6 27. Qg2 $18 {with f4 to come. white has very simple play. organize his pieces and play f4. black has zero counterplay}) 18. Bg5 f6 (18... Nf6 19. Qh4 Ned7 20. f3 $16) 19. Bf4 Nf7 20. Rad1 $14) 11. Be3 ( 11. Bd2 Nd7 12. Be2 Re8 13. h3 Bxf3 14. Bxf3 Nhf6 15. a4 (15. Qc2 a6 16. a4 c4 {= with the bishop on d2, white does not control c5 as he does with the bishop on e3. You can compare it with the same line, where the white bishop is on e3}) 15... a6 16. a5 (16. Qb3 c4 17. Qxc4 Ne5 18. Qe2 Nfd7 19. Rab1 Rc8 {=}) 16... c4 17. Be3 Rc8 18. Ra4 Ne5 19. Be2 Nfd7 20. f4 Nd3 21. Bxd3 cxd3 22. Qxd3 Nc5 23. Bxc5 Rxc5 24. Rfa1 (24. Kh1 Rxa5 25. Rc4 b5 (25... Qd7 26. Rc1 f5 27. exf5 Qxf5 {=}) 26. Rc6 b4 $15) 24... b5 25. axb6 Qxb6) 11... Re8 (11... Nd7 12. Be2 Re8 13. h3 Bxf3 14. Bxf3 Nhf6 15. Qc2 a6 16. a4 c4 17. a5 Rc8 18. Ra4) 12. Be2 (12. h3 Bxf3 13. Qxf3 Nd7 14. Bc2 (14. Qd1 a6 15. a4 Bd4 {=}) 14... a6 15. g4 Nhf6 16. a4 c4 17. Qg3 Rc8 18. Qxd6 (18. a5 Nc5 {=+}) 18... Nxg4 $15) 12... Bxc3 13. bxc3 Rxe4 14. h3 Bxf3 15. Bxf3 Rxe3 16. fxe3 Ng3 17. Rf2 h5 {=}) 10... Bxf3 11. Qxf3 Qe7 12. O-O a6 {we are now transposing to the same line as after 10.0-0 a6?!} (12... Nbd7 13. Qg3 Nh5 (13... Ne5 14. Bxe5 dxe5 15. Qe3 Rac8 16. a4 {+= white has a clear plan and easy moves. something like Nb5-a3-c4 and then a Rook to the d-c files and just improve his position with black having no counterplay}) 14. Bxd6 Nxg3 15. Bxe7 Rfe8 16. d6 (16. fxg3 Rxe7 17. g4 a6 18. a4 {[%t Shrt] transposes}) 16... Nxf1 17. Kxf1 Bxc3 (17... Bf8 18. Nd5 Bxe7 19. dxe7 a6 {black has to stop Bb5} 20. Nc7 Rac8 21. Nxe8 Rxe8 22. Rc1 Rxe7 23. f3 $14 {white has a very nice edge and can easily press on}) 18. bxc3 Rxe7 19. dxe7 Re8 20. Rb1 Nb6 21. Rb5 c4 22. Bc2 Rxe7 $14) 13. Rae1 (13. a4 Nh5 14. Bh2 Nd7 15. Qe2) (13. Qg3 Nh5 (13... Rd8 14. Bg5 h6 15. Bd2 b5 16. Rae1 Nbd7 17. f4 c4 (17... Re8 18. b3 Nh5 19. Qf3) 18. Bc2 Nc5 19. a3 Nfd7 20. e5 dxe5 21. h4 e4 22. f5 Qe5 23. Rf4 gxf5 24. Nxe4 $16 {is a sample variation of how dangerous white’s initiative can be if black lets it develop}) 14. Bxd6 Nxg3 15. Bxe7 Re8 16. fxg3 (16. d6 $1 Nxf1 17. Bxf1 Nc6 $1 {the knight has not commited yet to d7 and this makes all the difference}) 16... Rxe7 17. a4 Nd7 18. g4 (18. a5 Bd4+ (18... h5 $2 19. Rac1 Be5 20. Na4 Ree8 21. b3 Rac8 {=}) 19. Kh2 Ne5 20. Be2 f6 21. Rxf6 (21. Rac1 Nf7 22. Bd3 Nd6 (22... Ne5 23. Bb1 Nf7 24. b3 Nd6 25. Ne2 Nxe4 26. Nxd4 cxd4 27. Rf4 $16) 23. b3 Rd8 24. Na4 Nxe4 25. Bxe4 Rxe4 26. Nxc5 Re7 27. Ne6 Rxd5 28. Nxd4 Rxd4 29. Rxf6 Rb4 30. Rf3 Rb5 31. Ra1 Rh5 {=}) 21... Ng4+ 22. Bxg4 Bxf6 $14) (18. Rac1 Rd8 19. g4 Ne5 20. Rfd1 Nxd3 21. Rxd3 c4 22. Rdd1 Bxc3 23. bxc3 Rxe4 {=}) 18... Bd4+ 19. Kh2 Ne5 20. Be2 (20. Rfd1 Rd8 21. Bf1 f6 22. Rac1 Nf7 23. Bd3 Nd6 24. b3 b6 25. Rf1 Kg7 26. Bxa6 Nxe4 27. Nxe4 Rxe4 {=}) 20... f6 21. a5 (21. Rac1 Nf7 22. b3 Nd6 23. Bd3 Be5+ 24. g3 b5 25. axb5 axb5 26. Nxb5 Ra2+ 27. Kh1 Rd2 28. Nxd6 Rxd3 29. Nc4 Rxg3 {=}) 21... Nf7 22. Bf3 Nd6 23. Rac1 Nc4 {=}) 13... Nbd7 14. Qg3 {now that the knight has been commited to d7 Qg3 is more powerfull} Nh5 (14... Ne5 15. Bxe5 dxe5 16. Qe3 {+= white has an easy positional plus with his passed pawn and can safely create more problems for black which also has his powerful bishop closed.}) 15. Bxd6 Nxg3 16. Bxe7 Rfe8 17. d6 $5 Nxf1 18. Bxf1 Bxc3 (18... Bd4 19. Nd5 Rab8 20. b4 cxb4 21. Rd1 Bg7 22. Rc1 Rbc8 23. Rc7 $16) 19. bxc3 b5 $1 (19... Rab8 20. g3 b5 21. e5 Rxe7 22. dxe7 Re8 23. f4 Rxe7 24. a4 bxa4 25. Rb1) (19... Kg7 20. a4 Rab8 21. f4 $16) (19... Rxe7 20. dxe7 Re8 21. Rb1 b5 22. a4 bxa4 23. f3 $16) 20. e5 Rxe7 21. dxe7 Re8 22. a4 Rxe7 23. axb5 Nxe5 24. Rd1 axb5 25. Bxb5 Rb7 (25... Rc7 26. f4 Nc6 27. Kf2 Ne7 28. g4 $14 {white has enough to torture black and probably get something in OTB games}) 26. c4 Rc7 27. f4 Nc6 28. Bxc6 {since the d4 square is no longer protected this is forced} Rxc6 29. Kf2 (29. Rd5 Kf8 30. Kf2 Ke7 31. g4) 29... Kf8 30. Kg3 Ke7 31. Rd5 {is probably nothing more than a draw with correct play, but white can make black suffer.} * You must activate JavaScript to enhance chess game visualization.