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Normal Topic Rossolimo 3...g6 4. Bxc6 bxc6 5. d4!? (Read 347 times)
Confused_by_Theory
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Re: Rossolimo 3...g6 4. Bxc6 bxc6 5. d4!?
Reply #4 - 01/27/19 at 13:08:01
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Hello.

This 5.d4 is interesting for sure.

Also somewhat non-forcing though, making it harder to analyse.

Probably black needs to be quite precise to equalise (if this is a possibility) and that's nice. It does also look like white needs to be very precise though. Playing against the two bishops in a situation where black may also be slightly ahead in development is maybe not always so easy.

But ok. Facing the bishop pair as white in the Rossolimo is not an uncommon ocurrence Smiley

Have a nice day.
  
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kylemeister
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Re: Rossolimo 3...g6 4. Bxc6 bxc6 5. d4!?
Reply #3 - 01/26/19 at 16:20:38
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Speaking of comparisons to the Hyper-Accelerated Dragon,  5...cd 6.Qxd4 Nf6 7.e5 Nd5 8.O-O Bg7 9.Qh4 is in fact an old book line from it (2...g6 3. d4 cd 4. Qxd4 Nf6 5. Bb5 Nc6 6. Bxc6 bc 7. e5 Nd5 8. 0-0 Bg7 9. Qh4).
  
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tony37
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Re: Rossolimo 3...g6 4. Bxc6 bxc6 5. d4!?
Reply #2 - 01/26/19 at 10:30:27
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5.d4 is clearly a good move because Black can't reply as he'd normally do in the Sicilian. The normal response against d4 is of course cxd4 but Qxd4 then attacks the rook. This can be compared to a line from the hyperaccelerated dragon 1.e4 c5 2.Nf3 g6 3.d4 cxd4 4.Qxd4 and after 4...Nf6 5.e5 Black can harass the queen with 5...Nc6 (so White loses a tempo in the mainline 6.Qa4 Nd5 7.Qe4, although not easy for Black to equalise here either), but in this Rossolimo line that knight is gone of course. And if you don't play 5...cxd4, White takes on c5 and you have to spend time with your queen getting the pawn back.
So for the moment I don't see how to equalize...

edit: maybe 5.d4 cxd4 6.Qxd4 Nf6 7.e5 Nd5 8.O-O Bg7 9.Qh4 h6 planning d6 is still the best way to go
edit 2: but then I can't find something against 10.Rd1 d6 11.c4
« Last Edit: 01/26/19 at 11:40:04 by tony37 »  
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RdC
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Re: Rossolimo 3...g6 4. Bxc6 bxc6 5. d4!?
Reply #1 - 01/26/19 at 09:49:17
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Syzygy wrote on 01/25/19 at 19:54:17:
However, while analyzing I came upon an interesting sideline:

3...g6 4. Bxc6 bxc6 5. d4!?


An automatic response would be that the idea shouldn't be that good because White is opening the position and undoubling the pawns in a position where Black has the Bishop pair.


Engines tend to concur, but perhaps that's what they've been taught to think.

There are recent games, so there are some players willing to give it a try.
  
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Syzygy
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Rossolimo 3...g6 4. Bxc6 bxc6 5. d4!?
01/25/19 at 19:54:17
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I was thinking about switching back to playing ...Nc6 sicilians recently and am searching for a reliable response to the Rossolimo. I'm leaning toward 3...g6 for now, with the idea of meeting Bxc6 with ...bxc6 lines and 4. O-O Bg7 5. Re1 with 5...Nf6. However, while analyzing I came upon an interesting sideline:

3...g6 4. Bxc6 bxc6 5. d4!? with the following variations:

5...d6!? 6. O-O cxd4 7.Qxd4 e5 8.Qd3 +/=

5...d5!? 6. exd5 Qxd5 and now both 7. dxc5 and 7. Nc3 Qc4 8. dxc5 are challenging for Black.

5...cxd4 6. Qxd4 and now:
6...Nf6 7. e5 Nd5 8. O-O Bg7 9. Qh4 is dangerous for Black.
6...f6 7. O-O Nh6 8. c4 Nf7 9. Nc3 Bg7 10. Rd1 O-O 11. c5!? with a bind on the center.

5...Ba6 6. dxc5 Qa5+ 7. Nbd2 and now:
7...Bg7 8. Rb1! and Black has an abysmal score from here.
7...Nf6 8. a3 Qxc5 9. c4 and I can't seem to find full equality after either 9...d5 10. exd5! or 9...Bg7 10. Qa4!? Qb6 11. O-O d6 12. e5 dxe5 13. Nxe5.

5...Bg7 6. dxc5 Qa5+ 7. Nbd2 Qxc5 8. O-O d6 9. Re1 and now:
9...Nf6 10. e5 dxe5 11. Nxe5 O-O 12. Nb3 +/=
9...a5 10. a4 Nf6 11. e5 dxe5 12. Nb3! Qd6 13. Nxe5 Nd5 14. Nc4 Qc7 15. Bd2 O-O 16. h3!? Bf5 17. Nbxa5 when I'm unsure whether Black has full compensation for the pawn.

Thoughts on Black's best route to equality?

(P.S. I'm willing to discuss my reservations with any of Black's other third moves as well.)
  
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