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On September 22 2011 13:30 EvilNalu wrote:Show nested quote +On September 22 2011 13:12 qrs wrote:On September 22 2011 10:43 EvilNalu wrote:On September 22 2011 03:54 qrs wrote:edit 1: Re your first line: I agree with you that the sequence you give is more or less forced, so where we disagree must be in our assessment of the position at the end. Here it is, for reference: + Show Spoiler [continued] +The position after 11. Qxa7 Bg4 12. Qa4 Bxf3 13. Qxc6 Qd7 14. Qxd7 Kxd7 15. gxf3 Nxd2 16. Bxd2 Bxd2 17. Kxd2 Rxb2 18. Kc3 (protecting f2 without getting in the way of the Rooks): Black to playHere you say that "Black soon will soon at least even up material"--but how? What's your plan for him? Right now, what it looks like to me is that we've reached an endgame and we're still a pawn up. Yes, the doubled f-pawn creates a slight weakness (we have three pawn groups to protect instead of two), but overall I'd still rather be the side with the extra pawn. Maybe I'm the one who's missing something. It's certainly possible, but then show me the plan. First off, in the rook ending where you asked how black evens material: Black to playIt's actually pretty simple - he plays 18...Ra8 and if white moves the a pawn then Rb3. For example, 18...Ra8 19. a4 Rb3+ 20 Kf4/d2/e2 Ra4. I hope you can see how awkward it is getting for white here. The a pawn is doomed and the d pawn is weak. The h pawn is also isolated and the f pawns are doubled with no prospects. OK, I've looked at it, and I think you're right. This puts paid to my plan for dealing with + Show Spoiler +However, I've come up with a new plan, and one that looks less rickety to begin with. You might even like it yourself. + Show Spoiler [new plan] +11. Qxa7 Bg4 12. 0-0Of course, this is the nice safe consolidating move that we've been dying to play all along--and that you're voting for--but so long as we were hoping to keep our pawn, we've been unable to play it--or so we'd assumed. Take a closer look, though: 12...B/Nxd2 13. Nxd2 N/Bxd2 14. Bxd2 Rxb2: this is the series of moves that we've been afraid of (unless we're willing to give back the pawn). However, 15. Ba5 bears down on c7, and unless I'm mistaken, we'll just win the pawn right back--and this time with what looks like a much more solid position. Position after 15. Ba5 Black to playThis looks really nice for us, in my opinion. What do you think? + Show Spoiler +Yeah, I had analyzed all these lines (sorry for holding back, too much work to type them all out, especially when they likely will never be played anyway) and settled on 12.0-0 as white's best move. However, I think black can simply reply 12...0-0 and he has a great game. I think 13. Nxe4 turns out well for black after 13...dxe4 14. Nd2 Ra8 15. Qb7 Qxd4, so white has to play something like 13. Qa4 and black can play c5, removing his doubled pawns and securing a potentially troublesome passed d pawn (and white's e pawn may be in danger in some lines).
You probably still think white is good here (extra pawn) but I really think that because of the a+b pawns combined with open files for black, the extra pawn does not confer any advantage in the long run. Well, yes, it's a bit hard for us to debate over this position because it's hard to be sure if you'll assess a given position in the same way as me. I liked the White side of the last line you gave.
For that reason I don't know whether or not you'll consider this an improvement, but after Black's 12th move, a possibility is + Show Spoiler +13. h3 Bh5 (keeping the pressure on) 14. NxN PxN 15. Nh2. Now your 15...Ra8 16. Qb7 Qxd4 can be met with 17. Be3 Qc4 18. Rfc1 Qb5 19. QxQ PxQ 20. Rxc7 We're a pawn up in this position too. Whether it's one that you like, I don't know.
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On September 22 2011 14:35 hype[NZ] wrote:Show nested quote +On September 22 2011 14:17 Bill Murray wrote:Qxc6++ Show Spoiler +When we retreat, we will be able to put pressure on his forward knight, which will also carry forward once we clear that with what I want to do after we do Qc2. I want to do Nxe4 after. Wouldn't that win us another pawn? It looks like it would from my perspective. Once we clear that up, we will have a good angle on the h-pawn with our Queen. + Show Spoiler +I'm not at a chessboard but I had a look at this last night. After 11.Qxc6 Qd7 12.Qc2? then black can play 12...Ba6! and we have a whole bunch of problems. One possible continuation could be 13.a3 Qb5! (threatening mate in 1) 14.Qd1 and black has so much pressure against our king that it is probably winning and we are in a position where we have no good moves.
I think that if we play 11.Qxc6 Qd7 then 12.Qxd7 is pretty much forced edit: qrs is onto it double edit: woo 365 posts, I've been a member of TL for exactly 3 years lol
+ Show Spoiler +What about 11. Qxc6 Qd7 12.Qxd7 Bxd7 13. b3 and shouldn't we be up a pawn? Oh, and I just couldn't resist discussing even though I'm not in the game.
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I was on vacation, but would have probably voted for moves that won anyway. + Show Spoiler +As for this move I hate where all 3 considered moves lead. Qxc6 basically surely leads to queen exchange which I don't like. Qxa7 leads to very ugly positions in which I think black is pretty well off and 0-0 similarly. Was 11.a3 considered ? After 11. .. Bxd2 12.Nxd2 Nxd2 13.Qxc6+ we exchange queens and can reasonably safely take the knight using our king thus not having to worry about b2. Basically I find it better than direct Qxc6+ as we force black down a path that we chose and force him to exchange pieces that would cause us problems after the queen trade. Problems I see are that our king is blocking our bishop. Following b5 might slightly help with that but it still slows our development. I did not look into it too much as I do not have enough time so if someone has some obvious flaws point them out so I can change my vote  For now my vote is 11.a3
EDIT:typo
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On September 22 2011 17:59 mcc wrote:I was on vacation, but would have probably voted for moves that won anyway. + Show Spoiler +As for this move I hate where all 3 considered moves lead. Qxc6 basically surely leads to queen exchange which I don't like. Qxa7 leads to very ugly positions in which I think black is pretty well off and 0-0 similarly. Was 11.a3 considered ? After 11. .. Bxd2 12.Nxd2 Nxd2 13.Qxc6+ we exchange queens and can reasonably safely take the knight using our king thus not having to worry about b2. Basically I find it better than direct Qxc6+ as we force black down a path that we chose and force him to exchange pieces that would cause us problems after the queen trade. Problems I see are that our king is blocking our bishop. Following b5 might slightly help with that but it still slows our development. I did not look into it too much as I do not have enough time so if someone has some obvious flaws point them out so I can change my vote  For now my vote is 11.a3EDIT:typo
Not part of this but I want to apply my input as well.
+ Show Spoiler +I think A3 would lead to us being down another pawn. Bxd2+ 12. Nxd2 Nxd2 13. Bxd2 Rxb2 Is that possible considering the positions on the board? If not please correct me. Still evaluating all possible moves before I can give further opinion.
Edit: I suppose + Show Spoiler +for 13. Kxd2 but then we lose our chance for 0-0 which I dont' like either.
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On September 22 2011 18:55 kidcrash wrote:Show nested quote +On September 22 2011 17:59 mcc wrote:I was on vacation, but would have probably voted for moves that won anyway. + Show Spoiler +As for this move I hate where all 3 considered moves lead. Qxc6 basically surely leads to queen exchange which I don't like. Qxa7 leads to very ugly positions in which I think black is pretty well off and 0-0 similarly. Was 11.a3 considered ? After 11. .. Bxd2 12.Nxd2 Nxd2 13.Qxc6+ we exchange queens and can reasonably safely take the knight using our king thus not having to worry about b2. Basically I find it better than direct Qxc6+ as we force black down a path that we chose and force him to exchange pieces that would cause us problems after the queen trade. Problems I see are that our king is blocking our bishop. Following b5 might slightly help with that but it still slows our development. I did not look into it too much as I do not have enough time so if someone has some obvious flaws point them out so I can change my vote  For now my vote is 11.a3EDIT:typo Not part of this but I want to apply my input as well. + Show Spoiler +I think A3 would lead to us being down another pawn. Bxd2+ 12. Nxd2 Nxd2 13. Bxd2 Rxb2 Is that possible considering the positions on the board? If not please correct me. Still evaluating all possible moves before I can give further opinion. Edit: I suppose + Show Spoiler +for 13. Kxd2 but then we lose our chance for 0-0 which I dont' like either. + Show Spoiler +My 13th move was 13.Qxc6+ not Bxd2 or Kxd2
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On September 22 2011 19:40 mcc wrote:Show nested quote +On September 22 2011 18:55 kidcrash wrote:On September 22 2011 17:59 mcc wrote:I was on vacation, but would have probably voted for moves that won anyway. + Show Spoiler +As for this move I hate where all 3 considered moves lead. Qxc6 basically surely leads to queen exchange which I don't like. Qxa7 leads to very ugly positions in which I think black is pretty well off and 0-0 similarly. Was 11.a3 considered ? After 11. .. Bxd2 12.Nxd2 Nxd2 13.Qxc6+ we exchange queens and can reasonably safely take the knight using our king thus not having to worry about b2. Basically I find it better than direct Qxc6+ as we force black down a path that we chose and force him to exchange pieces that would cause us problems after the queen trade. Problems I see are that our king is blocking our bishop. Following b5 might slightly help with that but it still slows our development. I did not look into it too much as I do not have enough time so if someone has some obvious flaws point them out so I can change my vote  For now my vote is 11.a3EDIT:typo Not part of this but I want to apply my input as well. + Show Spoiler +I think A3 would lead to us being down another pawn. Bxd2+ 12. Nxd2 Nxd2 13. Bxd2 Rxb2 Is that possible considering the positions on the board? If not please correct me. Still evaluating all possible moves before I can give further opinion. Edit: I suppose + Show Spoiler +for 13. Kxd2 but then we lose our chance for 0-0 which I dont' like either. + Show Spoiler +My 13th move was 13.Qxc6+ not Bxd2 or Kxd2
If + Show Spoiler +11. A3 Bxd2+ 12. Nxd2 Nxd2 13. Qc6+ then what if black puts bishops at C8 to D7. Now we no longer have the option for a queen trade and blacks knight at d2 has a prime opening to fork the Ra1 and Bc1. I guess if 13. Qc6+ Bd7 then it all depends on where we put our queen. if 14. Qxd5 then we put ourselves in a situation where our queen is trapped. If anything else then Nb3 and black is set up for a killer fork that I'm not sure how we would get out of unless I'm not seeing something.
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On September 22 2011 20:08 kidcrash wrote:Show nested quote +On September 22 2011 19:40 mcc wrote:On September 22 2011 18:55 kidcrash wrote:On September 22 2011 17:59 mcc wrote:I was on vacation, but would have probably voted for moves that won anyway. + Show Spoiler +As for this move I hate where all 3 considered moves lead. Qxc6 basically surely leads to queen exchange which I don't like. Qxa7 leads to very ugly positions in which I think black is pretty well off and 0-0 similarly. Was 11.a3 considered ? After 11. .. Bxd2 12.Nxd2 Nxd2 13.Qxc6+ we exchange queens and can reasonably safely take the knight using our king thus not having to worry about b2. Basically I find it better than direct Qxc6+ as we force black down a path that we chose and force him to exchange pieces that would cause us problems after the queen trade. Problems I see are that our king is blocking our bishop. Following b5 might slightly help with that but it still slows our development. I did not look into it too much as I do not have enough time so if someone has some obvious flaws point them out so I can change my vote  For now my vote is 11.a3EDIT:typo Not part of this but I want to apply my input as well. + Show Spoiler +I think A3 would lead to us being down another pawn. Bxd2+ 12. Nxd2 Nxd2 13. Bxd2 Rxb2 Is that possible considering the positions on the board? If not please correct me. Still evaluating all possible moves before I can give further opinion. Edit: I suppose + Show Spoiler +for 13. Kxd2 but then we lose our chance for 0-0 which I dont' like either. + Show Spoiler +My 13th move was 13.Qxc6+ not Bxd2 or Kxd2 If + Show Spoiler +11. A3 Bxd2+ 12. Nxd2 Nxd2 13. Qc6+ then what if black puts bishops at C8 to D7. Now we no longer have the option for a queen trade and blacks knight at d2 has a prime opening to fork the Ra1 and Bc1. I guess if 13. Qc6+ Bd7 then it all depends on where we put our queen. if 14. Qxd5 then we put ourselves in a situation where our queen is trapped. If anything else then Nb3 and black is set up for a killer fork that I'm not sure how we would get out of unless I'm not seeing something. Yes, this. If + Show Spoiler + then + Show Spoiler +
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On September 22 2011 21:18 qrs wrote:Show nested quote +On September 22 2011 20:08 kidcrash wrote:On September 22 2011 19:40 mcc wrote:On September 22 2011 18:55 kidcrash wrote:On September 22 2011 17:59 mcc wrote:I was on vacation, but would have probably voted for moves that won anyway. + Show Spoiler +As for this move I hate where all 3 considered moves lead. Qxc6 basically surely leads to queen exchange which I don't like. Qxa7 leads to very ugly positions in which I think black is pretty well off and 0-0 similarly. Was 11.a3 considered ? After 11. .. Bxd2 12.Nxd2 Nxd2 13.Qxc6+ we exchange queens and can reasonably safely take the knight using our king thus not having to worry about b2. Basically I find it better than direct Qxc6+ as we force black down a path that we chose and force him to exchange pieces that would cause us problems after the queen trade. Problems I see are that our king is blocking our bishop. Following b5 might slightly help with that but it still slows our development. I did not look into it too much as I do not have enough time so if someone has some obvious flaws point them out so I can change my vote  For now my vote is 11.a3EDIT:typo Not part of this but I want to apply my input as well. + Show Spoiler +I think A3 would lead to us being down another pawn. Bxd2+ 12. Nxd2 Nxd2 13. Bxd2 Rxb2 Is that possible considering the positions on the board? If not please correct me. Still evaluating all possible moves before I can give further opinion. Edit: I suppose + Show Spoiler +for 13. Kxd2 but then we lose our chance for 0-0 which I dont' like either. + Show Spoiler +My 13th move was 13.Qxc6+ not Bxd2 or Kxd2 If + Show Spoiler +11. A3 Bxd2+ 12. Nxd2 Nxd2 13. Qc6+ then what if black puts bishops at C8 to D7. Now we no longer have the option for a queen trade and blacks knight at d2 has a prime opening to fork the Ra1 and Bc1. I guess if 13. Qc6+ Bd7 then it all depends on where we put our queen. if 14. Qxd5 then we put ourselves in a situation where our queen is trapped. If anything else then Nb3 and black is set up for a killer fork that I'm not sure how we would get out of unless I'm not seeing something. Yes, this. If + Show Spoiler + then + Show Spoiler + + Show Spoiler +True, that is what I get for doing it in my head instead of actually moving the pieces on the board. It seems it cannot be salvaged directly, so I will try to think some more about 11.a3 Bxd2 12.Nxd2 Nxd2 13.Bxd2 route. For now I am thinking about 13. .. Rxb2 Possibilities: a) 14.Bb4 - trying to trap the rook, I doubt it would work b) 14.Qxc6+ c) 14.Qxa7 d) ? Will think about it after work 
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I already changed my vote once, so I hate to do it again, but what the hell. Officially changing it from Qxa7 to 0-0. Last time, I promise... Just trying to psych out Ng5 by being as annoying as possible. 
+ Show Spoiler +I want to get castled. Simple as that. I don't see it as going halfway with our attack then pulling back because we are scared. We developed our Queen and are still threatening two pawns with her. Time to protect our king and get our knight unpinned.
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On September 22 2011 23:08 Mash2 wrote:I already changed my vote once, so I hate to do it again, but what the hell. Officially changing it from Qxa7 to 0-0. Last time, I promise... Just trying to psych out Ng5 by being as annoying as possible. + Show Spoiler +I want to get castled. Simple as that. I don't see it as going halfway with our attack then pulling back because we are scared. We developed our Queen and are still threatening two pawns with her. Time to protect our king and get our knight unpinned. As long as you know that that's giving up on + Show Spoiler +
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Reposting this for anyone who hasn't seen it, and obviously there are quite a few. 
On September 21 2011 00:59 jdseemoreglass wrote:Some more analysis. Things are getting interesting, and dangerous... + Show Spoiler +After Qxc6+, assuming that's what we decide, there are 3 possible responses from Ng5. 1) 11. ... Qb7.This is probably the best move. Here, we almost certainly have to trade queens. I wanted to keep queens on the board, but we simply can't allow black to play Ba6. For example, 12. Qc2? Ba6, and our king is trapped in the middle, our knight is pinned, and we are in terrible shape. Here black has deadly threats, such as Qb5 and Qg4. We are simply losing here. 11. Qxc6+ Qd7 12. Qc2? Ba6![[image loading]](http://i.imgur.com/GMije.png) We have no choice really but to play 12. Qxb7+. Here black also has an interesting option... The simple recapture Bxd7 looks most obvious, which could lead to the example position I described earlier: 11. Qxc6+ Qd7 12. Qxd7+ Bxd7 13. a3![[image loading]](http://i.imgur.com/pK3xc.png) Or, black could even play Kxd7. This would connect the rooks and begins to activate the king now that queens are off the board. Here black would have the intention of playing Ba6. The threat of keeping our king in the center isn't so bad here with queens off the board. Trying to castle right away would lead to 13. O-O Ba6 14. Re1, moving into another pin, because Rd1 could be met with Be2, Re1, Bxf3, and we are in serious trouble. 11. Qxc6+ Qd7 12. Qxd7+ Kxd7 13. O-O Ba6 14. Re1![[image loading]](http://i.imgur.com/5hYiq.png) I think a better move would be 13. a3, which is very similar to the line and image posted above. No matter how black responds now, we will be able to exchange a piece and remove the knight from e4. The more we simplify the position a pawn ahead, the more we can solidify our slight advantage. 2) 11. ... Bd7.This move looks bad at first glance, because it simply loses a central pawn, but the follow-up seems at least playable to me. Black can win a pawn back with: 12. Qxd5 Nxd2 13. Bxd2 Bxd2+ 14. Nxd2 Rxb2. The resulting position still looks better for white. We are up a pawn, have stronger control of the center, and black's pawn structure is very weak. Perhaps the only advantage black has is the bishop on an open board. 3) 11. ... Kf8?!This is probably the most interesing move here... With it, black prevents the trade of queen's and goes for a dynamic, attacking game. The black king looks less secure, but the dark-squared bishop is currently defending the diagonal well. By keeping the rook on h8, black is threatening a king-side attack by eventually playing h5 to try and bust open the king-side. By keeping the queen on the c6 square, black is also threatening a rook shift with tempo, for example 12. O-O Rb6 13. Qc2 Rg6. However, he probably has to develop the bishop first because I don't see a good way for him to respond to Qa8, pinning the bishop and holding the black queen in place. 11. Qxc6+ Kf8 12. O-O![[image loading]](http://i.imgur.com/U7K2p.png)
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Why are you people so keen in getting that pawn advantage right away while putting the formation and your limited number of attacking pieces at risk?
We should get our king out of the check lock first so we can start using our knights.
our move list should be something like: 1. a3 2. Nxe4 (assuming he moves his bishop instead of trading). 3. QxC6+ (assuming he takes our knight with his d5 pawn) 4. QxE4
There you effectively gained 2 pawn advantage while controlling the center board. Hold off getting the pawn in the next move.
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I'm changing my vote to 11. 0-0
+ Show Spoiler +We might not get another chance. I don't like the positions after Qxc6 and Qxa7. I guess we won't gain a pawn that way, but black still has the double pawn.
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On September 23 2011 00:45 FishForThought wrote: Why are you people so keen in getting that pawn advantage right away while putting the formation and your limited number of attacking pieces at risk?
We should get our king out of the check lock first so we can start using our knights.
our move list should be something like: 1. a3 2. Nxe4 (assuming he moves his bishop instead of trading). 3. QxC6+ (assuming he takes our knight with his d5 pawn) 4. QxE4
There you effectively gained 2 pawn advantage while controlling the center board. Hold off getting the pawn in the next move. a3's been refuted several times; it gives Black a pawn.
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Move 11 My best attempt at a summary of the position and the discussion that's been posted on it. If you haven't been keen to read through lines and lines of analysis, you can just read this one post and it should bring you up to speed.
These are the moves that have been voted for or suggested in this thread:
11. Qxc6+ + Show Spoiler [main line] +11...Qd7 (otherwise, either we can win another pawn with 12. Qxd5 or Black loses his ability to castle by moving his King) 12. QxQ+ (just about forced. Otherwise 12. Qc2 Ba6 puts us in a world of trouble. [for more details, see this post]) 12...BxQ (the most straightforward recapture and probably the most flexible for Black, who retains his King's ability to castle and his Bishop's to go to either side of the board.) That brings us to the following situation: White to playand if we want to hold on to our extra pawn, we already have severe problems. Most of our pieces are tied up in one way or another. If we castle, for instance, Black can then trade off the minor pieces and then play Rxb2 after all, evening the material again, without his old weakness of doubled pawns. None of our options look promising: - 13. a3: (the suggestion of jdseemoreglass, here. Its goal is to untangle the situation by forcing Black to exchange off the central pieces that are strangling us.) 13...B/Nxd2 14. Nxd2 N/Bxd2 15. Kxd2 (the order in which Black captures doesn't seem to make a difference. In either case, we recapture with our Knight and then King; otherwise, again, once the Bishop leaves c1, Black is free to even up the material after all with ...Rxb2.) 15...Rb3 and here is our position:
White to play Do we really want to go here? Yes, we still have our pawn advantage for the moment, but our pieces are awfully tangled up, and our central pawns are exposed and vulnerable.
One Black threat in this position is ...Bb5/f5 followed by ...Rd3 and ...Rxd4.
Kc2 doesn't seem like an especially helpful move for us because of ...Ba4.
Barring further analysis this should probably be considered the main line, although 13. Ke2 may actually be more promising (see below). + Show Spoiler [further analysis] +For some further analysis on this position, see the following posts: 1, 2, 3. The upshot of those is that two strategies were suggested for White to disentangle his position + Show Spoiler [strategies] +1) Extricate the a1 Rook by pushing the a-pawn and exiting via the a-file. 2) Maneuver the King to a2 via c2 and b1; with the King thus guarding b2, play the Bishop to e3. However thus far, no way was found to make either strategy work in practical terms, without losing our material advantage at the least. (It's worth keeping in mind that all of the analysis on 11. Qxc6 (and 11. Qxa7, for that matter) has been predicated on the idea that we can gain and hold to a pawn advantage. If we gave up the idea of trying to maintain the lead of a pawn, then all of these lines would need to be reassessed from the beginning.
- 13. Ke2?!: I haven't much looked into this line--it certainly looks pretty desperate at a glance, and Black has moves like 14. ...Bb5+ and 14...Bg4 at his disposal, but perhaps this line is worth investigating.
The method to the madness here is that this is the only move that immediately relieves the pin on the d2 Knight while still defending both f2 and d2. + Show Spoiler [Other possible 13th moves] +- 13. b3? (clearing the way for us to castle by defending the b-pawn; incidentally opening up a diagonal for our dark-squared Bishop. However, also weakening our position.) 13...Bc3 (attacking our Rook) 14. Rb1 (only square it can run to) 14...Bf5 with the threat of ...NxN followed by ...BxR and it seems that we must lose the exchange.
White to play
- 13. Rb1 (trying to take the pressure off the b2-pawn by defending it with the Rook) 13...Bf5 (threatening the Rook as above) 14. Ra1 (it doesn't seem that there's a way to defend the Rook except retreating to where we came from). This is surely not a winning line for us, as at minimum Black can repeat an earlier position with 14. Bd7, and it's very far from clear that he has nothing better.
- 13. a4 (well, it prevents ...Bb5 at least) 13...B/Nxd2 14. Nxd2 N/Bxd2 15. Kxd2 (again, making the necessary moves to prevent ...Rxb2) 15...Rb4 (forking our pawns at a4 and d4) and at the least Black will get his pawn back.
- 13. Kd1?? is a total blunder: 13...Nxf2+ 14. King moves NxR etc.
- 13. Rg1, Rf1, h3, h4, g3, and g4 seem to accomplish little to nothing to help our position, and most of them seem to weaken it. 13. Rf1 protects the f2 pawn at least, but the Rook can easily be driven off at any time by ...Bb5. 13. h3 prevents Bg4 at least, but there are so many other things for Black to do, and so many other threatening locations for him to place his light-squared Bishop that this scarcely seems to matter to him. At a glance, none of these moves seem to be much of an improvement on simply giving Black a free turn (and some of them are worse).
- 13. Anything else loses the b2 pawn after all via Black's usual method of exchanging off the Bb4 and Ne4 and then playing ...Rxb2.
That covers every single possible move in this situation. Any of them look appealing? 11. Qxa7 + Show Spoiler [main lines] +Here it's harder to give a single main line, as this is a relatively less forcing move. Instead, here are Black's plausible alternatives along with possible White responses: - 11...Bxd2+ 12. Nxd2 (takes pressure off us without taking any pressure off Black. Doesn't seem to be an especially good move for Black in this situation.)
- 11...Nxd2? QxR (extensively analyzed here: seems to be winning for us.)
- 11...Rb7 (defending the Rook and forcing us to move the Queen) 12. Qa8 (forestalling most of Black's attacking options for at least a move and possibly two, depending on what Black responds.)
- 11...Bb7 looks like one of Black's weaker responses, as it threatens nothing immediate, and blocks the critical b-file. This gives us the chance to play 12. 0-0, and we ought to be fine.
- 11...Bd7, Be6, Bf5, and Bg4 seem like solid Black moves: answering our threat to the Rook while developing a piece. Bg4 in particular ratchets up the pressure on our position in general, and threatens among other things to double our f-pawns, weakening our pawn structure and our Kingside. Bd7 in particular preemptively defends the c6 pawn, ruling out 12. Qa4 as a useful possibility.
On the other hand, one positive characteristic (for us) that these moves share is that they commit Black's light-squared Bishop to one side of the board, reducing the things that we have to worry about. In particular, ...Ba6 is no longer a threat, and ...Bd7 can no longer be played without loss of tempo.
In the case of 11...Be6 or Bf5 (but not 11...Bd7 or Bg4), a possible response for us is 12. Qa4 (threatening Black's c6 pawn) 12...Qd7 (defending with the Queen rather than the Bishop to avoid incurring a loss of tempo) 13. Qc2 or Qd1 (depending on where Black's light-squared Bishop is). The extra defender at home can be a big help in holding together our position.
Black's ability to ply his Bishop between f5 and g4, between them bearing down on all of the useful squares our Queen might occupy is certainly worrisome in this line, but after, e.g., 11. Qxa7 Bg4 12. Qa4 Qd7 13. Qc2 Bf5 14. Qd1 Bg4 15. h3, we may be able to escape with no more than doubled f-pawns, while continuing to hold our pawn lead.
- 11...Bg4: EvilNalu has shown that the response of 12. Qa4 allows Black to regain his pawn and enter an endgame where his better pawn structure probably gives him an edge.
Instead, the best response to this move is probably 12. 0-0. Although this allows the common theme of 12...B/Nxd2 13. Nxd2 N/Bxd2 14. Bxd2 Rxb2, in this case 15. Ba5 will regain the pawn with what looks to be a solid advantage for Black.
After we play 12. 0-0, EvilNalu recommends for Black 12...0-0, leading to an unclear game in which we retain our pawn advantage.
- 13...Bd7, Be6, and Bf5 (yes, I know there's some overlap with the last list) seem like solid Black moves: answering our threat to the Rook while developing a piece.
Other possible responses for us include the two candidate responses in the 11. Qxc6 line (though here they come a move earlier because we haven't spent a move trading Queens): 12. a3 and 12. Ke2?!. (This doesn't mean that this line is equivalent to the 11. Qxc6 line: as usual, in any given position, having Queens on the board means that we have more options--something that's quite important to us considering that most of the rest of our pieces are on lockdown.)
- 11...Rb6 or Rb5. Here again, 12. Qa4 seems like a reasonable response, slowing Black by issuing a counter-threat to his c6 pawn.
+ Show Spoiler [further analysis] +See this post by EvilNalu, suggesting a particular continuation as strong for Black, and this response by qrs (me). Of the two Black moves, ...Rb6 seems the stronger, as it allows for the possibility of ...Ba6
Most of the above analysis could do with double-checking and/or deepening. Some general points: - Many of the issues we face in these lines are similar to the ones we face after 11. Qxc6, with most of our men locked up for one reason or another. A key difference is that our Queen (as well as Black's is still on the board). This matters, because the Queen is one of the few pieces that we are relatively free to move here: thus having it on the board significantly increases our options. - One recurring theme here is that in many lines, playing 0-0 allows Black to recapture the pawn by playing ...Bxd2 and Nxd2 in some order (pulling our Bishop away from c1) followed by ...Rxb2. - In some lines we may be able to gain some time by playing Qa4, extricating the Queen while threatening Black's c6 pawn. - Another move that may be useful in several lines is b3, securing our b-pawn from Black's Rook and opening a diagonal for our dark-squared Bishop. On the other hand, we need to be very careful before relinquishing control of c3. One threat to watch out for in particular after playing b3 is ...Bc3, which often wins the exchange, as in the case of the 11. Qxc6 line. - A counter-intuitive move that may be worth considering in some lines, here as in the 11. Qxc6 line is Ke2?!, relieving the pin on our d2 Knight. - The bottom line is that 11. Qxa7 is much less forcing than 11. Qxc6, and therefore it's harder to predict what it will lead to. Speaking generally, it seems to keep the Queens on the board and allow a number of possibilities on both sides. More analysis on this move would certainly be useful. 11. 0-0 + Show Spoiler [main line] +11...B/Nxd2 12. B/Nxd2 N/Bxd2 13. N/Bxd2 Rxb2 (Here Black is the first to win the pawn, but we ought to be able to win at least one of his back.).
This looks relatively safe in the short term, but it abandons our material advantage before it starts, and it looks to give Black equality at the least.If you don't care to try to hold on to a material advantage, it's worth considering, although it's worth pointing out that if you don't care to try to hold on to a material advantage, then that opens up more possibilities in the 11. Qxc6 and 11. Qxa7 lines as well. 11. a3 + Show Spoiler [main line] +11. a3 Bxd2+ 12. Nxd2 Nxd2 13. Bxd2 Rxb2.
If 13. Qxc6+, then 13...Bd7 14. Qxd5 c6 and we will have lost a piece.
If 13. Kxd2, then 13...Qg5+ 14. King moves Qxg2.
Votes 11. Qxc6+: 16 (Raysalis, qrs, Bill Murray, hp.Shell, shackes, EnderSword, Chezus, chesshaha, Ikari, jdseemoreglass, Cloud9157, itsjustatank, Malli, Mash2, hp.Shell, RAGEMOAR The Pope, wizard944, aphorism, Xog, Bill Murray, TehForce) 11. Qxa7: 7 (qrs, hp.Shell, Soluhwin, Mash2, keyStorm, Archers_bane, Bill Murray, mastergriggy, BaronFel, LaXerCannon) 11. 0-0: 7 (EvilNalu, timh, Malinor, wuBu, Blazinghand, Mash2, shackes) 11. a3: 1 (mcc)
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Can we please just play Qxc6?
+ Show Spoiler +0-0 is bad because Bxd2 Nxd2 Nxd2 Bxd2 Rxb2, hitting the Bishop and forcing us to use another move to protect it.
I REALLY just want to get the pawn, and then force queen trade/mess up his castle/win another pawn.
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I should probably update some of the 11. Qxa7 lines in my summary (none of them are completely out of date but several should probably be revised and/or consolidated), but it's hard to find the motivation, since so few people really go through the posted analysis anyway.
I'd just like to ask any serious advocates for 11. Qxc6+, though (I guess that's jdseemoreglass) to have a look at the Qxc6 lines in that summary and honestly see if they like them or if they have anything better.
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On September 23 2011 01:45 Cloud9157 wrote:Can we please just play Qxc6? + Show Spoiler +0-0 is bad because Bxd2 Nxd2 Nxd2 Bxd2 Rxb2, hitting the Bishop and forcing us to use another move to protect it.
I REALLY just want to get the pawn, and then force queen trade/mess up his castle/win another pawn. I agree.
+ Show Spoiler +Qxc6+ is a forcing move. It forces black to respond immediately, limiting his options, instead of playing Qxa7 where black can make practically any move he wants.... castling, bishop developing, rook moves, etc.
Qxc6+ is winning a central pawn, which is certainly a better piece to have than the already weak and isolated a-pawn.
Qxc6+ will likely trade off the queens. As a general principle, when you are ahead in material, you want to trade down, because that increases your advantage proportionally to the material on the board. It also reduces the tactical options black has to win back a pawn or attack.
We've already looked at tons of variations and possibilities after Qxc6+, and I don't think any of them are losing or show a definite way for black to win back material. I just don't see the down-sides that other people are feeling.
@qrs, in my opinion I don't think our position is bad after the variation 13. a3 into Rb3. We've traded off even more material in this variation, which is a good thing when a pawn up. We simply have to maneuver our rook, Re1, Re3. If black doubles up on the b file, we can simply play Rc3, attacking his backwards pawn.
Everything here is defended. We have a weakness in the bishop being difficult to develop, but since things are pretty locked down, we have plenty of moves to maneuver around. Black's c-pawn isn't going anywhere, and we have a king-side pawn majority that we can slowly develop.
EDIT: @qrs
Rc5
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I think a3 is bad because + Show Spoiler +11. a3 Nxd2 (-> Now we have to immidiatly capture the knight back because of the double-check option ..Nxf3+ which would be a disaster for us) 12. Bxd2 Bxd2+ + Show Spoiler + Capturing the Bishop is even worse: 12. axb4 Nxf3+ 13. gxf3 Now we have 2 double pawns and black can still save his pawn 13. .. Bd7 14. Qxa7 is also no option anymore because we would lose a rook with 14. ..Ra8
13. Nxd2 Now black can defend his pawn and we are still not castled yet
Vote for Qxc6+
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On September 23 2011 01:54 jdseemoreglass wrote:+ Show Spoiler +@qrs, in my opinion I don't think our position is bad after the variation 13. a3 into Rb3. We've traded off even more material in this variation, which is a good thing when a pawn up. We simply have to maneuver our rook, Re1, Re3. If black doubles up on the b file, we can simply play Rc3, attacking his backwards pawn.
Everything here is defended. We have a weakness in the bishop being difficult to develop, but since things are pretty locked down, we have plenty of moves to maneuver around. Black's c-pawn isn't going anywhere, and we have a king-side pawn majority that we can slowly develop.
Here's the position after 11. Qxc6 that we disagree over: + Show Spoiler + Black to play I see your points--at the same time, to me, the following gives a definite advantage to Black: + Show Spoiler +Two of our four pieces (Queenside Rook and Bishop) are practically immobile whereas Black has the run of the board. His plans might include playing his pawn to a4 and/or activating his King. Since it's hard to give definitive lines in this situation, would you consent to play this position out with me, taking the White side while I take Black? We can do that in edits to our last two posts here so we don't clutter the thread. Takebacks would naturally be allowed.
+ Show Spoiler [move list] +1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Ne4 7. cxd4 Bb4 8. Nbd2 d5 9. Bxc6 bxc6 10. Qa4 Rb8 11. Qxc6 Qd7 12. Qxd7+ Bxd7 13. a3 Bxd2+ 14. Nxd2 Nxd2 15. Kxd2 Rb3 16. Re1 O-O 17. Re3 Rfb8 18. Rc3 R8b7 19. Rc5 Kf8 Last move: 9/26: 18:22 KST
Sorry, didn't notice your move till just now. 19. ...Kf8
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