lol nice win. Even I could have found those moves

didn't really consider other moves

Looks like things are all still going to plan.
Things to keep an eye out for are the obvious Qh4+, with a possible follow-up (after Kf1) of Bc5 (threatening mate on f2).
There's nothing obvious for the white squared bishop, apart from possibly g4, although Nf3 (as long as its possible) seems like a fine response, although Qe1is always there as a way to avoid trouble.
As far as most likely line, I'm expecting Qh4+ after my obvious fxe4. After Kf1 I'm temporarily a piece ahead, although my king is somewhat unsafe.
As far as where my pieces want to end up, my 'ideal' setup for my pieces is something like Nf3, Be3 (to try to nullify a possible Bc5 by black), Nd2, Qe2. I don't think there is any hurry to get the h-rook into the game, as the priorities in the position are to ensure my king remains safe and various threats are stopped.
The dilemma at the moment is whether I want to keep the queens on the board, or swap them off. There are problems with each, however I think the best of the options is to leave the queens on. If the queens stay on the board, there is always the risk of something going astray much quicker, however there are obvious places for my pieces to develop to, while the central pawns I have keep black somewhat restricted in terms of where black's pieces can develop to. The problem with getting the queens off is that the advanced pawns are difficult to defend, and black's bishop pair can quickly attack the pawns that are somewhat loose.
For example, after 6...Qh4+ 7.Kf1 Bc5 8.Qe1 Qxe1 9.Kxe1 cxb5 10.exd5 black has 10...Bf5 (attacking c2) & after 11.c3 there is Be4 (attacking g2 & d5), so its difficult to keep the extra pawn.
In the lines where I keep the queens on the board, I may not be able to win a pawn, however the position looks much easier to play & black always has things to worry about (queen getting trapped, loose pawns, etc).
In short, I'm going to play 6.fxe4, grabbing the knight. I'm expecting 6...Qh4+ in response, although black could try 6...Bc5 first, which I intend to follow-up with 7.Nf3, preventing the queen check & I can happily take on d5 after black recaptures the bishop.
The line I'm expecting is 6.fxe4 Qh4+ 7.Kf1 Bc5 8.Qe2 cxb5 & then I think 9.exd5 is the move to play (as opposed to Be3, Nf3 or Qxb5+). This clears the way for Nf3 (and Bg4 isn't such a problem as long as I keep an eye out for a possible Qc4+ at some stage). I should also be able to happily follow-up with Be3 & Nbd2.

tl;dr 6.fxe4 it is!

OK, here I have 2 main choices, Qh4+ and cxb5. Qh4+ looks more natural, but partly because cxb is an ugly move. On the other hand, I probably have to win back the piece at some point. I'm discounting Qa5+, I don't see anything wrong with my previous analysis suggesting it just doesn't work.

A. 6...Qh4+ 7. Kf1 and now:
A1. 7...cxb5 8. exd5 (or 8. Qxd5 Nc6 9. Nf3 Qg4 and I probably won't lose a second pawn and he still has some problems, so I should be OK) 8...Bc5 9. Qe1 or Qe2 transposing to lines of A2 where I have committed to cxb
A2. 7...Bc5:
A21. 8. Qe2 Bg4 9. Nf3 Bx 10. Qxf3 dxe4 11. Qf5 and now even 11...g6! looks possible, 12. Qc8+ Ke7 13. Qxb7+ Nd7 and how does he escape my Q and B
A22. 8. Qe1 Qx 9. Kx cxb5 10. exd5 Bf5 and I am a pawn down in the ending but have development, bishop pair and chance to go after his pawns immediately. I expect I'm a little worse here but should have chances.
B. 6...cxb5 7. Nf3 (7. exd5 also possible with similar positions to A) 7...Bg4 (what else? 7...dxe, Q swap and Ng5 doesn't look fun) 8. exd5 and it looks like White has his centre all defended and is not really behind in development. Bc5 is possible then, it slows him down from castling but I don't see how I will get a real attack or pressure on the centre.

so Qh4+ it is, doesn't look as good as I had thought on move 3 but still looks decent for Black

Again as expected. 7.Kf1 looks like the obvious move.
Depending on what RT does, the plan is either to hang on to material and defend (if he plays a move like Qxe4, I'll play Bd3 & keep the extra piece), or return the material and look to get my pieces developed quickly.
I'm expecting 7...Bc5, which threatens mate on f2. 8.Qe2 seems like the logical response, and keeps an eye on both e4 & b5, which adds to the possible threats that I can generate further down the track (and it fits in with my 'development plan' from a few posts ago).
Again the plan is still to follow-up the likely 8...cxb5 with 9.exd5. The e-pawn is now well supported, with the Queen on e2 & the likely Nf3 adding to the support. This leaves d5 as a potential 'loose' point, particularly if black plays a move like Qd4. This would disrupt the plan to play Be3, however this may allow an alternative method of development, starting with Nc3. b4 is not an immediate threat, as Nb5 indirectly defends d5 (Qxd5 allows Nc7+) & attacks the queen, however this 'threat' is fairly easy to stop, with a6. This allows Nf3 & I can develop my pieces to squares I want to develop them to.
If black plays the immediate 7...cxb5, then 8.Qxd5 looks like the way to go, as there is no easy way to remove the queen from this position (Be6 allows Qxb7) & the queen on d5 defends the e-pawns as well as covering the c5 square. I can then continue with my plan to develop with Nf3, Be3, etc.

incidentally, when I picked for colours I was 90% sure I was going to get White. I'm sharing this with you now because I'm far too drunk to make an actual move (if I did make a move, it would def be Bc5)

so I guess Hiphop won the first levelling game

OK, I want to play Bc5. It means he can force the queens off with Qe1, but actually I think I'm still OK there due to having better development despite him having all the centre pawns and an extra pawn to boot. Bc5 Qe1 Qx Kx cxb5 exd5 Bf5 (maybe other moves) Nc3 (not necessarily best, but something like c3 is just going to lose the pawn anyway after e.g. Nd7 or maybe Bxg1 and Nd7, and it also blocks his own knight and might allow Bd3+ in some lines) Then I think I just should play a6 and keep double threats of Bxc2 and b4, Be4 winning back a pawn in all lines. Actually now I think I may be better here.

If he plays Qe2, then cxb5 is fine anyway, I gain more time after Qxb5+ Nd7. I was also planning to play Bg4 but now like the look of this better.

I haven't properly analysed cxb5, my feeling is it can't be any better than developing with the threat of checkmate while keeping cxb5 in reserve. So long as Bc5 is tactically justified, and it look like it is, that's the move I want to play.

I haven't mentioned Bxc6+ as a move for him, but it would essentially lose two tempi (I would get to develop my knight and not waste time on cb5) which are far more important than the pawn imo. I expect he won't even consider it, though it's possible the computer would like it.

Pretty much as expected.
Obviously I need to do something about the mate threat on f2 this move & Qe2 is the obvious choice.
I don't like Qe1 & exchanging queens as mentioned in the previous note because my central pawns can become weak quickly & with less pieces on the board, it is tougher to defend these pawns.
The real issue is how to follow-up after Qe2.
First lets look at the less-likely options for black:
8...dxe4 & I can gain a tempo on the queen with 9.g3 (which also helps cover f4, which may be useful with dealing with a potentially open f-file later in the game & then follow-up with Bc4 (Bh3+ is answered by Ke1) & I maintain my piece advantage, although it will take some time to untangle my pieces (especially on the king-side), but Be3 & Nd2 seem fairly easy to play.
8...Qxe4 is answered by 9.Qxe4 dxe4 10.Bc4 & I'm simply a piece ahead with a comfortable position.
8...Nd7 or 0-0 can be answered by Bd3, saving the piece, which should be fine as long as I manage to keep developing quickly (and keep the f-file closed if black plays 0-0).
This leaves the two most likley options ... 8...Bg4 or 8...cxb5.
8...cxb5 allows 9.exd5 & I have options to develop the queenside (Be3, Nc3 or d2) or kingside (Nf3). Tactically I need to be on the look out for possible ideas such as black swinging the queen over to the queenside (d4, c4 or b4) at a suitable time, as well as tactics involving my king & queen (at the moment my queen needs to guard the mate on f2, so moves like Bg4 & Nd7-e5 come into consideration, as well as possibly 0-0 & trying to either get the rook to attack on the e-file, or opening the f-file.
Having said that, I don't mind the position, but it can become anything from a crazy tactical battle in a line like 9...Bg4 10.Qxb5+ Nd7 11.g3 Qh5 12.Bf4 g5 13.e6 & its anybody's game ... to a fairly quiet middlegame/endgame after something like 9...Bg4 10.Qe1 Qxe1+ 11.Kxe1 Bf5 12.Nf3 Bxc2.
8...Bg4 is I think the most logical move for black here (and the one I am expecting).
The main responses that I have are 9.Nf3 & 9.Qe1.
9.Qe1 transposes to 8.Qe1 after 9...Qxe1+ 10.Kxe1 cxb5 11.exd5 Bf5, which has the problems mentioned before, but the more I look at the position, the more I think such a 'bail out' might be necessary.
As much as I dislike the look of the ending, it might in fact be my best option, although I would prefer to avoid it if possible.
The only real option black has to vary in this line is on move 11, with something like Nd7 or 0-0, when I can simply continue with my development by Bf4, Nc3/d2 & Nf3/e2. The issue is which of the pawns do I least want to retain - c2, d5 or g2. If I don't defend g2 I may end up losing a rook as well, so its either c2 or d5 that has to go & as long as I can maintain the e5 pawn, then I'd like to keep the d5 pawn ... so c2 is the one to fall (it also keeps the three pawns on black's a & b files 'covered' by my a & b files).
9.Nf3 is the other alternative. This put the black queen under immediate threat & potentially removes the mate threat on f2, depending on black's response.
Black has a few options here.
9...Bxf3 is the most obvious, although cxb5 & Qh5 may also be options to consider.
If I play 10.Qxf3, then black can then once again gain a tempo on my queen with dxe4, before recapturing the bishop & I think the resulting position is difficult for me as I am still well behind in development, although there are a few tactical lines that could play out.
I prefer 10.gxf3 in response to 9...Bxf3. It does a few things that benefit my position ... blocks the f-file, reducing the impact of a later 0-0 & trying to open the f-file; It also gives some more protection to my king, with the only check available to black being Qh3 check, which I can respond to with Ke1; It also creates something of a positional trap ...
The 'trap' is that tactically, black can now play 10...dxe4, which allows me to 'save' my bishop with Bc4 (or a4), however after exf3, my queen is overworked & can not defend f2 & c4 simultaneously.
In response to 10...dxe4 I plan to play 11.f4, securing the e5 pawn & preparing Be3. There is no hurry to recapture the pawns on b5 or e4 as they are permanent weaknesses & I should be able to round them up later, once I have sorted out my development issues. If 11...cxb5 I plan to respond with 12.Be3, nullifying the black squared bishop & bringing pieces out. I'm pretty sure this line holds together tactically & with the white squared bishop being swapped off, there is no bishop pair to worry about defending against.
As for other alternatives after 9.Nf3, cxb5 allows Nxh4 & Qh5 allows Bd3 & both lines look good for me.

In short, 8.Qe2, with the expected follow-up being Bg4 9.Nf3, which I think is good for me

Also, I now understand the concerns of others who have played Malkovich games ... always a worry when you post a move & have 3 or 4 replies immediately afterwards!

Actually I expected Qe1. After all, swapping queens is what you do when you are up material but coming under an attack. But I think that line would have been fine for me.

Now I have two main choices: cxb5 or delay it once again with Bg4.

A. cxb5 9. Nf3. now if 9... Qxe4 10. Nc3 looks like White now has the development lead, and what am I going to do with my pawns on b5 and d5? So I have to try something like Qg4 or Qh5, but then still Nc3. Qh5 is probably the better option, since I won't get to take on e4 immediately anyway I may as well play for Bg4 stuff. So 9...Qh5 10. Nc3 Bg4 11. Nxd5 Nc6 12. Nc7+. Now what do I do with the K? every square has a drawback.
A1. 12...Kd8 allows the white Q to the d-file with tempo or to pin my d4-knight. 13. Nxa8 Nd4 14. Qd3 Kc8 15. Be3 seems to hold everything for White, e.g. 15...Bxf3 (15...Rd8 Nxd4, or 15...Nxf3 Bxc5-d6) 16. Bxd4 and now Bxg2+ does not appear to be a perpetual, White can happily give some material back, hide his king and still be winning.
A2. 12...Kd7 more or less the same
A3. 12...Kf8 allows checks on the a3-f8 diagonal. e.g. 13. Nxa8 Nd4 14. Qf2 probably winning

B. Bg4 9. Nf3 Bxf3
B1. 10. gxf3 dxe4!? looks like a nice idea destroying the centre, the point is that if he tries to save the bishop with Ba4 or Bc4 then exf3 hits Q and bishop and f2. If Bxf7+ maybe just Ke7.
B2. 10. Qxf3 is the critical line I believe. Now dxe4 and if the Q moves to g2 or somewhere and I take the bishop, I expect I will be OK (with or without Q swap). Maybe I will be a pawn down or a pawn up but so what. So instead 11. Qf5 intending cxb5 12. Qc8+ Qd8 13. Qxc5 Qd1+ 14. Kf2 Qxh1 15. Qc8+ Ke7 when I think 16. Bg5+ is probably winning, even if White only gets his material back Black's king is too exposed. But I want to play 11...g6!? which seems to lead to an almost-forced line: 12. Qc8+ Ke7 13. Qxb7+ (13. Qc7+!?) Nd7 14. g3 Qg4! (Qh3 allows too much Bg5+ stuff) 15. Be2 Qf5+ with, I think, some compensation. Maybe best then is Bf2+ Kd1 Qxe5 followed by harassing the queen and putting a rook on d8.

The reason I say this line is "almost-forced" is because he can slip in Bg5+ at some point. Last night I recall looking at some wonderful line where he would take both of my rooks but I had a quiet move that led to a perpetual -- something like 13. Bg5+ Qxg5 14. Qxh8 Nd7 15. Qxa8 Qc1+ 16. Ke2 Qxc2+ 17. Nd2 cxb5 (lol at this being the "quiet move") and he can't stop me taking the knight with check e.g. Rhe1 Bb4 Re2 Bxd2 Rxd2 Qf1+ = -- but now I can't figure it out, and it looks like I will have lots of ways to go Qf4+ or Qc1+ anyway, and probably just be winning.

so Bg4 it is.

hmm, I thought that was a lot of analysis, but it's actually quite wordy and his last spoiler is 1.5 times longer. fml

I feel like I'm wining the war of predicting moves ... but unfortunately there's a bit more to it than just predicting your opponent's moves.
As far as the position is concerned, I think the analysis from the previous move applies. As such, 9.Nf3 looks like the best move. I considered the Qe1 'bailout' line, however I think I have plenty of chances leaving pieces on. A lot of this comes down to the fact that I am still temporarily a piece ahead & black needs to spend a move to recapture that extra piece (the b5 bishop), which not only weakens black's pawn structure (doubled b-pawns), but also removes the defender of the d5 pawn.
In terms of what to expect, I think black will play 9...Bxf3 & after 10.gxf3 I'm expecting the 'tricky' dxe4, although I think that is fine for me, as mentioned in my previous note.

In this position, I don't see where Black has gotten much out of this chaos other than forcing White's King to move to f1

Black's got an extra piece developed, but one minor piece is off the board already and another is about to go on f3. With fewer pieces, it's going to be hard to take advantage of an exposed King.

White has the extra pawn and an upcoming strong pawn center on the fifth rank.

forced, unless I'm missing something

Now we've reached an interesting point in the game. I'm still temporarily a piece ahead (although the b5 bisop can be captured at any moment, it does take a move to do so, which means one move of non-attack/development) & with some of the pieces being swapped off, my defensive task should be easier. It's also an interesting point, as this is the first time where there are no obvious attacking moves (hence my ability to predict moves may suffer in the short-term) & needs to worry about something other than attacking my king & setting up mating threats.
Some ideas to consider in the current position:
* Although I can 'win' a pawn with Bxc6, it allows black to play Nxc6, which helps his development (something I don't want to do if I can avoid it!).
* Related to this is the 'trick' involving Qxb5+ (assuming black plays cxb5 before 0-0), where black has to play Nd7 to avoid losing the c5 bishop. If I have pawns on e5 & d5 at this stage, then as long as there is no mate threat (which I don't think will happen), then e6 becomes a possibility & I might get to have some fun with tactics (however the stars need to align for this to happen)
* The ending should be favourable for me because of the weaknesses in black's pawn structure, which should mean they are easier to pick off ... though the operative word there is should ... no guarentees in my games!

As far as variations are concerned, I'm going to play 10.gxf3 and expect one of a few possibilities (in decending order of likelyhood):
10...dxe4
10...cxb5
10...Qh3+
10...dxe4 will be followed up with 11.f4 & after 11...cxb5 12.Be3, trying to nullify the bishop & secure my king. I'm not concerned with the few queen checks that black has in this position. 12...Qh3+ 13.Kf2 Qh4+ 14.Kg2 Bxe3 15.Qxe3 Qg4+ 16.Kf2 Qh4+ 17.Qg3+ & there are no more (useful) checks & my king if safe, in a good position for the endgame & black has weak pawns which I can attack fairly easily.
10...cxb5 will be followed up with 11.exd5. My main concern here is getting my pieces developed safely & if I can manage that, I should be in a better position. There are some similarities with the line above possible, though there are also some differences that I will need to be aware of.
10...Qh3+ will be followed by 11.Qg2 & black has no choice but to exchange more pieces. After 11...Qxg2+ 12.Kxg2 cxb5 13.exd5 I have a comfortable position, which again needs development & consolidating my position & I should be winning.

once again, I don't want to take on b5 until I have to, especially if I can take some centre pawns first. as far as I can see dxe4 allows me to do this without allowing him to save his piece, here are some sample lines:

A. 11. Ba4 ef 12. Qxf3 Qxa4 looks good, pawn up and the Q gets easily back into the game via c4 or d4
B. 11. Bc4 exf3 12. Bxf7+? Kxe7 13. Qxf3+ Ke7 and I am winning because of Rf8. I know I mentioned this line earlier and was worried I had to do something else silly, but it's just terrible for White
C. 11. fxe4 cxb5 12. Nc3 (12. Qxb5+ Nd7 and I still have a big attack) and now I should probably play a good move like Nc6 and I like my position (Be3?! Qh3+ is at least a repetition and probably I have more). also in this line I can flick in Qh3+, Qh4+ stuff if I like.
D. 11. Nd2 Qh3+ 12. Qg2 Qx+ 13. Kx exf3+ 14. Kxf3 (I think best) cxb5 15. Ne4 and I'm sure he'd rather have 15. Nxb5 instead, which brings us to
E. 11. Nc3 Qh3+ 12. Qg2 Qx 13. Kx exf3+ 14. Kxf3 cxb5 15. Nb5 Na6 16. Rd1 which may be the critical position. Here I think Black is OK. White's developed pieces are better, but he still hasn't developed them all and he has a weakness on e5 and I think I can unwind. Maybe 0-0 is possible intending to meet Rd7 with Rhd8 and Rd1. Maybe even something artificial like h6 preparing Ke7. Also, I may have an improvement on all this (probably with an earlier cxb5 or fxe4), but I doubt he has.

so in summary, dxe4 doesn't seem to lose and may be very good. cxb5 exd5, on the other hand, without analysing it, probably isn't much good for me.

I guess Rd1 is not exactly forced in that last line. it looked natural to me to dominate d6, but another possibility is Be3 with the same goal. maybe then Bx Nd6+ Ke7 Kxe3. Now ...b6? 19. Nf5+ Ke6 20. Nxg7+ Kxe5 21. Rhf1 would be bad, but instead ...g6 or ...Nc5 or ...Ke6 should be OK instead.

Looks like the 'Spidey senses' are still working & he's gone for the 'tricky' dxe4 line.
I'm going to avoid the tricks & play 11.f4 (the attempt to 'save' my bishop with 11.Bc4 doesn't work after exf3 & the queen is overloaded).
The plan is to then develop (and trade if need be) & make use of my superior pawn structure in the late middlegame/ending.
Black basically has two options after f4 ... finally get around to recapturing the b5 bishop, or playing Qh3+. If black doesn't do either of those, then I should be able to save my bishop with Bc4, when I'm more than comfortbale with the position.
I'm expecting the bishop recapture ... but I should look at some lines:
11...Qh3+
Given that eventually black will have to recapture on b5, I'm happy to trade queens here, so I would reply with 12...Qg2. This is also helped by the fact that black doesn't have a bishop pair any more (might be less reluctant to exchange if that were the case). The point is to exploit the weak pawns at b5 & e4 ... and Nc3 does this nicely! I also have Re1 if need be & the only annoying piece that black has is the c5 bishop, which can be nullified (after taking the e4 pawn) with Kf3 & Be3.
The line I am expecting is 11...cxb5.
Again, black is left with weak pawns at b5 & e4, so I'm looking at attacking those in the longer term, however in the short term I want to make sure my king if safe(r), develop my pieces off the back rank & try to give my pieces more scope (currently my queen is tied to defending the mate threat on f2). 12.Be3 looks like a good start to acheiving these goals, and it has the added benefit of nullifying the c5 bishop.
The line holds together tactically after 12...Qh3+ 13.Kf2 Qh4+ 14.Kg2 Bxe3 15.Qxe3 Qg4+ 16.Kf2 (not the immediate Qg3, when Qe2+ is annoying) 16...Qh4+ 17.Qg3
12...Bxe3 13.Qxe3 looks fine to me, with the plan to exploit the weaknesses of the black pawns. Although Nc3 looks natural, black may have defensive resources involving threats on c2, with either ideas of Nc6-b4 or Nd7 & Rc8. This means that maybe the knight should be going to Nd2, keeping it mobile & defending c2 with Rac1, at least temporarily.
12...Nd7 is an interesting alternative that keeps options open for black & may be the most critical line here. 13.Bxc5 Nxc5 can get very tactical after 14.Qxb5+, although I'm not sure it is good for my with my f4 pawn undefended & my king is exposed. 13.Nc3 & Nd2 are possibilities, though there is still plenty of play in the position, particularly with the black queen hovering near my king. Another thing to worry about is a possible 0-0 & f6 by black at some stage, again trying to exploit the fact that my king is somewhat undefended in the centre.
Ultimately what I'm looking for here is a way to get the queens & bishops off the board & get control of the d-file with my rooks ASAP.

Cliff notes: 11.f4, to be followed by 12.Be3 to try to swap pieces & simplify to an ending where I have less pawn weaknesses than black.

I don't understand why he keeps saying that b5 pawn is weak? after eventual a6 the b5 pawn is much stronger than white's f4 or h2 even.. Even b7 is weaker than b5!

so I analyse practically all his reasonable moves and miss the one he plays. weirdly I also overlooked f3-f4 in a slightly similar position OTB very recently, and it was the best move. Now I have a choice, Qh3+ or cxb5.

After Qh3+ he can swap queens, e.g. 12. Qg2 Qx 13. Kx cxb5 14. Nc3 and I think he is better in the endgame, because the knight will be very good on e4.

After cxb5 I don't think he should try to grab another pawn with 12. Qxb5+, e.g. Nd7 13. Qe2 0-0 14. Nc3 Qh3+ (unfortunately necessary, because ...f5 immediately runs into Qc4+ stuff) 15. Qg2 Qxg2+ 16. Kxg2 f5 17. exf6 Nxf6 with development.

So instead 12. Nc3 Qh3+

A. 13. Ke1 and I have the option of repeating moves/forcing him to the d-file with Qh4+, or playing like line B. thought I also had Bb4 but it fails to Qb5+. After say 13...Qh4+ 14. Kd1 0-0 15. Nxe4 Rd8+ 16. Bd2 I am not sure who is better, I think I lean towards White because of the mighty knight and the fact that I am not really in a position to attack despite my "development lead". e.g. 16...Na6 17. Kc1 Rd7 (don't really believe in Rxd2!?) with chances for both sides, I guess.

B. 13 Qg2 Qd7 covering d1 and preventing the N from moving. possible threat of b4.
B1. 14. Qxg7 Rf8 (plan was 14...Qd4? 15. Qxh8 Kd7 but unfortunately he has e6+ +-) and ...b4 is still a threat, or just develop ...Nc6, ...0-0-0, etc - as long as his knight doesn't get to go somewhere good, I will be fine.
B2. 14. Qxe4 0-0 (14...b4 is also interesting, he can go Nd5 or maybe Ne2. The good thing for me about his knight being on d5 is that it is not on e4. I will go Nc6 or 0-0 and be OK.) Now 15. Be3 lets him develop, or 15. f5 with what looks like a premature attack, because if the queens come off the pawns will not be strong. e.g. 15...a6!? 16. f6 Qh3+ 17. Ke1 Nc6 18. fxg7 Rfe8 and I am probably doing really well. But 15. Be3 is slightly worrying, I hoped that this would not be possible because of Qh3+ stuff, but now I don't see it. Maybe just 15...Bx Qx Nc6 intending Qf5, Rd8 (he can't go Nxb5 because Qd5).
B3. 14. Bd2 developing a piece and covering d1. now 14...e3 15. Be1 and I have a lot of options: b4, Nc6, a6!?, 0-0, Qf5. Somehow I actually have an extra pawn in this position so if one or two of them drop off it will still be OK too.

In general I think it's very clear that keeping the queens on benefits me, the knight endgames are worse for me unless I gain a lot of tempi somehow, but with the queens on his open king should compensate. I didn't really need all this analysis to decide on cxb5, but it's useful to take a look at some lines ahead

I'll keep the notes short this time ... or shorter at least.
I'm happy to continue with my plan & play 12.Be3
The more I think about it, the more I'm expecting 12...Nd7, although Bxe3 or Qh3+ would not be completely unexpected.
The big question for me in the short term will be where to put the knight ... c3 or d2 ... and a lot of that will depend on black's response. I think it could be a sort of corresponding squares type of thing, with Nc6 being met by Nd2 & Nd7 being met with Nc3, although I'll have a look at it in more detail when black finally gets around to developing his knight.