Isn´t the London System busted in some way?
1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 O-O 6. Be2 c5 7. O-O {White temporarily ignores Black's positional threat.} Qb6 8. Nbd2 {Now the b2-pawn is defended tactically, as we shall see below, but this is not the end of the story. Indeed, after Black's reply (8...Be6), White is forced to go in for an adventure with 9 Ng5 in order to defend the pawn, but then Black can begin play in the centre. White's alternatives fare no better:} ({a) The knight is not very well placed after} 8. Na3 {and now} Be6 9. Nc4 Qc7 {is pretty stable and quite reasonable,} ({but} 9... Bxc4 $5 {is more critical. Following} 10. Bxc4 Qxb2 11. Rb1 (11. dxc5 {was played in V.Burmakin-Turov, St Petersburg 1998, and now} Qb4 12. Qe2 Qxc5 {leaves Black better too}) 11... Qc3 {Black has the advantage.})) ({b)} 8. Qc1 Nc6 9. c3 Be6 10. Nbd2 {transposes to Line A.}) ({c)} 8. Nc3 $6 cxd4 9. exd4 Qxb2 10. Nb5 Nc6 {is just good for Black.}) 8... Be6 $1 ({Please do not fall for} 8... Qxb2 $2 9. Nc4 Qb4 10. c3 $1 Qb5 ({ or} 10... Qxc3 11. Rc1 Qb4 12. Rb1 Qc3 13. Rb3 {, winning the queen}) 11. Nxd6 {when the exchange of pawns that has taken place definitely isn't in Black's favour!}) 9. Ng5 ({Defending the pawn with} 9. b3 {would be criminal; apart from the weaknesses created, it is not clear how White will answer} Nd5 $1 {.}) ({Instead} 9. Qc1 Nc6 10. c3 Rac8 {would lead us back to the difficult position for White which we examined in Line A.}) 9... Bd7 10. Nc4 Qc7 {Black is now ready to kick back both white knights with ...h6 and ...b5. This indicates a quick queenside attack, although play in the centre with ...e5 is also an option.} 11. c3 (11. a4 {prevents ...b5 and with it ...e5 for the moment. In that case, a reasonable set-up for Black is to activate the light-squared bishop with} b6 12. c3 Bc6 {, followed by ...Nd7 and a powerful . ..e5 break.}) 11... h6 12. Nf3 b6 ({Unfortunately Black must refrain from} 12... b5 $6 {because of the strong retort} 13. dxc5 $1 Qxc5 14. Nxd6 $1 {.}) 13. Bd3 (13. a4 Bc6 14. a5 Nbd7 {is fine for Black.}) 13... Qb7 ({Black strengthens his control over e4, although} 13... Bc6 {, intending ...Nd7, ... Rfe8 and ...e5, is also possible.}) 14. Re1 Bc6 15. Ncd2 Ne4 16. Nxe4 Bxe4 17. Qe2 Nd7 {Black had no reason to complain here in A.Yusupov-V.Topalov, Las Palmas 1993, especially as the ...e5 break will not be long in coming.} *
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