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London system Vs d5 with early--e6

1. d4 d5 2. Bf4 e6 

  deals with Black's most common stance, which is ... d5 with ...e6. Players who prefer this set-up as Black are usually at home in Queen's Gambit Declined positions. The dividing line is ...Bd6 or ... Be7: 


* ( 1:- When they develop the bishop to d6 as in Prié-Flear, Black intends the simple freeing break ...e5. You can actually allow this and hope to outplay your opponent in an equal but uniquely London/Slav position, but the only attempt at a theoretical advantage lies in preventing ...e5. White disrupts Black's plan by planting a knight on e5. If Black exchanges the knight, we reply dxe5 and utilize the e5-pawn as a launching pad for our attack. If Black ignores the knight, we employ the plan of Bg3 followed by f4 with a nice version of a Reversed Stonewall Dutch.)

( 2:- Here is the good news: If Black develops his bishop to e7 then we follow the exact plan as when he plays ...Bd6. )

 

 الشكل الاول (A)

1:-When Black plays ...Bd6 and swaps bishops on f4

When Black plays ...Bd6 and swaps bishops on f4, White retains a bind due to his control of e5. But in this game, I mistimed it as Black could have played ...Qd6! double attacking f4 and the check on b4. This would have forced Qd2 with an equal position. --- A good point to remember is: It's always okay to play Bg3 when faced with ...Bd6, but leaving your bishop on f4 is only good if you are sure you can deal with the ...Qd6 double attack trick from Black.


 Exple

The perfect opening choice: The London. 1. Nf3 d5 2. d4 e6 3. Bf4 Bd6 This is a no-nonsense approach by Black, who

immediately challenges White's f4-bishop.



London system Vs d5 with early--e6 When Black plays ...Bd6 and swaps bishops on f4

 Some of the ideas behind ...Bd6 are:

 1. The ability to capture a white knight if it lands on e5

2. To swap bishops, reducing White's pressure on e5

3. Perhaps to achieve the freeing break ...e5, freeing Black's game. 4. e3 !?

 

[ These days I usually play the alternative 4. Bg3 , daring Black to take and open the h-file. ]

Nf6 [ The most accurate continuation is 4. -- Bxf4 ! 5. exf4 Qd6 ! . For example, 6. Qd2 [after 6. g3 ? Qb4+ 7. Nbd2 Qxb2 it's doubtful whether White has compensation for the pawn ] Ne7 7. Na3 O-O 8. c3 Nd7 ?! [8. -- b6 improves ]

9. Nb5 ! Qb6 10. a4 ! c6 11. a5 Qd8 12. Nd6 Nf6 13. Nxc8 Nxc8 14. Bd3 Nd6 15. O-O Qc7 16. g3 c5 ?! [ it's a mistake to give White the d4-square for his pieces; 16. -- b6 ! looks better ]

17. dxc5 ! Qxc5 18. Nd4 gave White a pleasant edge in E.Prié-M.Saucey, Montpellier 2003: White controls d4 and has extra space. ]


5. Nbd2 Bxf4 6. exf4 Qd6 7. g3 O-O 8. Bd3 White has a tiny pull due to his grip on the e5-square. b6 ! Black plans to eliminate his bad bishop via a6.

[8. -- c5 ?! is a strategic error which is punished by 9. dxc5 ! clearing d4 for a knight: Qxc5 10. c3 and White follows with Nb3, controlling both the d4- and the e5-squares. ]

9. Qe2 a5 ! He insists. 10. O-O Ba6 11. Rac1 ! Bxd3 12. cxd3 The point of White's 11th move. The doubled pawns are not weak and White exerts some pressure down the c-file. c5 13. Rc2 Na6 14. a3 Rac8 15. Rfc1 Qb8 ?! This may be a waste of time.

[The natural plan 15. -- Rc7 16. Ne5 Rfc8 17. Ndf3 looks better than the game continuation. ]

16. Ne5 Qb7 [16. -- cxd4 ?? falls into a trap after 17. Nc6 Qb7 18. Ne7+ ! . ]

17. Ndf3 Nd7 18. Rc3 Leaving open the possibility of Qc2, if the c-file opens. Nxe5 ?! Why allow the white queen to enter the kingside? Black had two other possibilities: [18. -- f6 ?! fails to equalize: 19. Nxd7 Qxd7 20. dxc5 bxc5 [after 20. -- Rxc5 ?! 21. Rxc5 Nxc5 22. d4 Ne4 23. Qc2 White's total control of the c-file puts Black under pressure ]

21. d4 Qd6 [if 21. -- c4 ? , 22. b3 wins a pawn]

22. b3 a4 23. dxc5 Rxc5 24. b4 Rxc3 25. Rxc3 . Despite his passed d-pawn, Black is in a bit of trouble here. The main problems are the defence of his weak a-pawn and White's control of the c-file. ] [Probably Black should have kept his cool with 18. -- Rc7 ! , with only a microbe of an edge to White. ] 19. Qxe5 Now Black must worry about f5. The black defenders are missing in action over on the queenside. g6 ? This halts f5 for the moment but creates a larger problem of weak dark squares around the king. White begins a direct attack. 20. h4 h5 21. Qf6 ! cxd4 22. Nxd4 Rxc3 23. Rxc3 Nc5 Despite the reduced material, White has a powerful attack after his next move. [I have a feeling my opponent intended 23. -- Rc8 ?? but then realized that White had the game-ending shot 24. Nxe6 ! . ] 24. g4 ! Ripping his king position open, and mine too! The white king is totally secure despite the lack of pawn cover. hxg4 25. h5 gxh5 26. Qg5+ Kh7 27. b4 Removing a defender of e6, the key to White's attack. axb4 28. axb4 Na4 [28. -- Nd7 ? loses even faster after 29. Qxh5+ Kg7 30. Qxg4+ Kh7 31. Qh5+ Kg8 [or 31. -- Kg7 32. Nf5+ ! exf5 33. Qg5+ Kh7 34. d4 ! allowing the rook a deadly entry to h3 ] 32. Nf5 ! exf5 33. Qg5+ Kh7 34. d4 ! . ] 29. f5 ! The f-pawn transforms into another attacker. Rg8 [ Black gets mated if he eats the rook: 29. -- Nxc3 ?? 30. f6 Rg8 31. Qxh5# . ] 30. Qxh5+ Kg7 31. Qg5+ Paradoxically, Black's g4-pawn shields White's king. Kh7 [If 31. -- Kf8 , there follows 32. Qf6 ! Nxc3 [or 32. -- Ke8 33. Nxe6 fxe6 34. Qxe6+ Kf8 35. Rc8+ winning the queen ] 33. Nxe6+ Ke8 34. Qd8# . ] 32. Qh4+ [More accurate than 32. Qh5+ because White watches the dark squares f6 and d8 from h4. ] Kg7 33. Rc6 ! Demolition or clearance of the e6-pawn is the quickest path to victory. Nb2 Trying to get this poor guy back into the game, but it's much too late. 34. Nxe6+ ! fxe6 35. Rxe6 Black gets mated shortly. --- 


(B) الشكل الثاني

2:-When black  goes after the bishop on g3 with his knight and allows an open h-file.


Black faces serious king safety issues if he goes after the bishop on g3 with his knight and allows an open h-file. It's playable but Black must defend very accurately for the next few moves or else his king may easily land in trouble. White can consider e4 at some point, steering the game towards a favourable Rubinstein French. 


Exple

1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 Bd6 5. Bg3 White is happy to exchange the bishops, safe in the knowledge that this would open the h-file and restrict Black's castling options. Ne4 !? Black takes the dare and will allow White an open h-file in return for the bishop pair.

London system Vs d5 with early--e6 when black  goes after the bishop on g3 with his knight and allows an open h-file.

In general, you should not be afraid of this idea. Most of the time the h-file outweighs Black's bishop pair in the resulting closed positions. 6. Nbd2 Nxg3
[6. -- Nxd2 ?! is illogical and just wastes time for Black, who has moved his knight three times to trade on d2. ]
7. hxg3 Nd7 ?! White immediately seizes the initiative after this passive move. Alternatives for Black are:
[7. -- O-O ?! 8. Bd3 h6 9. c4 c6 10. Qc2 Nd7 11. O-O-O followed by g3-g4, with the faster attack. Players often underestimate White's attacking chances in such positions. Black's bishop pair isn't much of a consolation. ]
[7. -- b6 8. c3 c5 9. Bd3 g6 [9. -- Ba6 ?? 10. Bxa6 Nxa6 11. Qa4+ is a trick beginners occasionally fall for ] 10. e4 ! Bb7 11. Qe2 Nd7 12. O-O-O !? . It's still not clear where Black should place his king, and the centre is opening soon. Black looks uncomfortable. ]

[7. -- c5 ! 8. c3 Nc6 9. Bd3 h6 ! looked playable for Black in P Schulze-V.Skorpik, correspondence 1996. The bishop pair may make up for his slightly insecure king situation. Black should at least stall kingside castling if he allows White an open h-file. ]
8. e4 ! Correctly opening the centre despite the opponent's bishop pair.
[8. c4 may also give White the edge after c6 9. Qc2 h6 . ] dxe4 [8. -- b6 9. Bd3 Bb7 10. Qe2 ! retains White's advantage. ]
9. Nxe4 Be7 The game looks like a Rubinstein French gone sour for Black.
[9. -- Nf6 10. Bd3 Nxe4 11. Bxe4 h6 12. Qe2 c6 13. O-O-O leaves Black cramped and without counterplay. ]

10. Bd3 f5 ? This is strategic suicide. However, the thematic moves 10...c5 and 10...b6 also leave Black under pressure:

[10. -- c5 11. dxc5 Nxc5 12. Nxc5 Bxc5 13. Qe2 Qb6 14. c3 Bd7 15. Ne5 Rd8 16. O-O-O ! and Black is in danger because there is no safe spot for his king. He can't grab the f2-pawn either due to Bxf2 ?? 17. Nc4 ! Qc5 18. Rh5 ! f5 19. Rxf5 . ]
[10. -- b6 11. Bb5 ! Bb7 12. Ne5 ! Bxe4 13. Bxd7+ Kf8 14. Qh5 g6 15. Qh6+ Kg8 16. Qf4 Bf5 17. g4 g5 18. Qf3 Bg6 19. Nxg6 hxg6 20. Rxh8+ Kxh8 21. Qxf7 ! wins, since Qxd7 ?? is met by 22. O-O-O and it's mate down the h-file. ]
[Black's best defensive chance may be playing the position in Caro-Kann style with 10. -- c6 ! 11. Qe2 Qc7 12. O-O-O h6 ! [an example of the underlying dangers facing Black is the line 12. -- b6 ? 13. Neg5 ! h6 14. Qxe6 !! winning ] 13. Kb1 b6 14. g4 ! . White is clearly applying pressure, but Black can stay in the game with ...Bb7 and ...0-0-0. ]

11. Nc3 Nf6 [If Black chips away at White's centre, hoping to free his game a bit, he also opens the position while lagging in development: 11. -- c5 ?! (a certain recipe for disaster) 12. dxc5 ! Bxc5 13. Qe2 Qe7 14. O-O-O . Black has a real problem here. Where to put his king? It will not be safe on the kingside - White opens lines quickly with g3-g4. He can't hang around the centre much longer. And queenside castling also looks too far distant to accomplish. ] 12. Qe2 The giant hole on e5 and the sickly e6-pawn add up to huge difficulties for Black. c6 13. O-O-O Nd5 14. Nxd5 cxd5 [If 14. -- exd5 ? , 15. Rde1 ! Kf8 16. Ne5 and Black is even worse off than in the game continuation. ] 15. Ne5 Bg5+ ?! Handing the opponent a tempo can't be right. Sometimes it's best to face a problem head on. [Black should try 15. -- O-O ! . This obviously allows White a promising attack, but sometimes the best option in a bad situation is to pick the least-worst choice. ] 16. f4 Bf6 17. Bb5+ Ke7 18. g4 a6 19. Ba4 ! A far-sighted move. It looks like White is putting his bishop out of play, but he continues to control d7 and can always transfer the bishop back to b3 or c2 later. The real point of this move is that White plans on undermining d5, either with a future c2-c4 or, as occurred in the game, g3-g4 and gxf5, which deflects the e6-pawn as a defender of d5. Bxe5 Desperation, [but 19. -- g6 20. gxf5 gxf5 21. Rh6 ! Bg7 22. Qh5 ! Qg8 [22. -- Bxh6 ?? 23. Qh4+ ! Kd6 24. Nf7+ wins the queen ] 23. Qg5+ Kd6 24. Rf6 ! Bxf6 25. Qxf6 is also catastrophic for Black. ] 20. Qxe5 Kf7 21. gxf5 exf5 22. Bb3 Be6 23. Rde1 Qd7 24. g4 ! White gets the pleasure of prying open Black's king position twice with g4, courtesy of Black's capture on g3 in the opening. fxg4 25. f5 ? Getting a bit carried away. [ White can put his opponent away with the calmer 25. Rh5 ! which induces a critical weakness with g6 26. Rh6 ! Rad8 27. Reh1 , cracking the defence. Now Kg8 ?? is met by 28. Rxg6+ . ] Bxf5 26. Bxd5+ ? Natural moves are not always the best, and this one may allow Black to escape. [After 26. Rhf1 ! at the minimum White wins Black's queen: Kg6 27. Rxf5 ! Qxf5 28. Qd6+ ! Kf7 [both 28. -- Kg5 29. Re5 ] [and 28. -- Qf6 29. Re6 cost Black his queen ] 29. Re7+ mates. ] Kf8 ?? [Black misses 26. -- Kg6 ! when suddenly things are not so clear. ] 27. Rhf1 . 


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