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| May-08-07 | | Zebra: What about something like the following: 28 ...Bxc2 (since we will lose material anyway), 29.Bxc2 a5, 30.Kb1 Rc8 (getting the rook out of the way, protecting the back rank and supporting a4 in case of Bb3. ?? |
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| May-08-07 | | Marco65: I thought it was a matter of fact we lose our exchange anyway. Other lines seem very risky. The only ones I recently reconsidered are TheAlchemist's 28...Bd8 or 28...Bh4. I double checked if there are tricks on the a2-g8 diagonal (on 28...Bd8 that I prefer just by instinct, if we go for 28...Bh4 we'd better calculate if it makes any difference in the following lines): A) 28...Bd8 29.Rf1 Qe5 30.Ne7+!? Bxe7 31.Rxf7 d5 32.Bd4 Bg5 33.Bxe5? Bxd2+ 34.Kxd2 Kxf7 B) 28...Bd8 29.Rf1 Qe5 30.Rxf7!? Kxf7
B1) 31.Nb6+ Ke8 32.Ba4 Bxb6 33.Bxc6+ Bxc6 34.Bxb6
B2) 31.Nxb4+ Kf8 32.Nxc6 Bxc6
If all this is right, these are the only lines where we don't lose the exchange without riskying too much, the worse endgame is what TheAlchemist showed in a diagram, with us retaining the bishop pair with one pawn less. I'll be around at 6PM (midnight here) in case a clear decision is made and we want to save a timeout |
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| May-08-07 | | Marco65: <Zebra> I don't support sacrificing a piece now, besides the fact that in your line after 30.Qd3 we are already under a dangerous attack |
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| May-08-07 | | Zebra: <Marco> I figured we lose slightly less material this way than in your analysis for ...Kh8 (below). (We don't lose the b4 pawn as well.) |
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| May-08-07 | | chessmoron: <Marco> So what's wrong with Bxd5. Qxd5 isn't that intimidating. |
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May-08-07
 | | TheAlchemist: Alright, finally some intense debate. Let it all out! |
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| May-08-07 | | Zebra: <chessmoron> I think they get to build up a disconcerting amount of pressure that way. We still have to move the rook, and then Rf1 or Rg1 both look unpleasant. |
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| May-08-07 | | Zebra: <Marco> Could Qd3 be met by Ng5? |
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May-08-07
| | TheAlchemist: Ok, I have to go now, I'm sorry to leave you like this, but I trust you'll all make the best decision. Just in case, I primarily vote for the Bh4/Bd8 hybrid whichever you find best), but will go with the flow, whatever you decide. Someone please post the move in <brankat>'s forum and ask <Akavall> if he can post the move at MFO. |
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| May-08-07 | | Marco65: <chessmoron> I remember I posted something previously that scared me. I'm convinced of 28...Bh4 so far but can't post anymore until about 5pm see you later |
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| May-08-07 | | Zebra: I have to go as well. I would second <the Alchemist>'s suggestion of a time out, to prepare our "last stand". Unless, of course, a consensus emerges before posting time. Bh4/d8 looks interesting, but I don't have any more time ot look at it. I am still not in favour of Kh8 or Bxd5 unless there are improvements. |
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| May-08-07 | | Marco65: If nobody tells otherwise I will ask the timeout, since I wouldn't know which vote to post. I am against the timeout if possibile however, because I'm sure we will much need it in the endgame. |
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| May-08-07 | | Marco65: In the meanwhile why I like 28...Bh4. First, why 28...Bh4 and not 28...Bd8: 28...Bh4 avoid the fastidious reply 29.Re1, also in some variation we are able to break the potential pin by ...Qc8 that is impossible with our bishop in d8. In the next post some concrete analysis. |
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| May-08-07 | | Marco65: First of all I found little difference with respect to previous analysis on 28...Bd8: A) 28...Bh4 29.Rf1 Qe5 30.Ne7+!? Bxe7 31.Rxf7 d5 32.Bd4? Bg5 33.Bxe5 Bxd2+ 34.Kxd2 Kxf7  B) 28...Bh4 29.Rf1 Qe5 30.Rxf7!? Kxf7 and now discovered check doesn't seem so dangerous: B1) 31.Nb6+ Ke7  (with our bishop on d8 we could also afford 31...Ke8 32.Ba4 Bxb6) B2) 31.Nxb4+ Kf8 32.Nxc6 Bxc6 =
So their best plan should be TheAlchemist's original line: 28...Bh4 29.Rf1 Qe5 30.Nxb4 Rc7 31.Nxa6 Re7 32.Rxf7 Rxf7 33.Bxf7+ Kxf7 
click for larger view |
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| May-08-07 | | Marco65: After 28...Bh4, quick analysis of alternatives to 29.Rf1: A) 29.Bd4 Bg5 30.Ne3 Qe7 31.Rf1 d5 and we are ok
B) 29.Bf4 Qc8 also here no trouble even if we lose b4 as usual C) 29.Qd4 Bxd5 30.Bxd5 [30.Qxd5? Qxe3+ 31.Kb1 Qe8 32.Ba4 Rc5 33.Qxc5 Qxa4 34.Qc8+ Bd8 35.Rf1 Qe8 with the better endgame for us] 30...Rc7 31.Rg1 [31.h6 Bf6] 31...Qe5 seems ok as well D) 29.Rg1 Qe5 30.Bd4 Bg5 31.Ne3 Qf4 again not too much to worry Their best line still seems the one that leads to the above diagram |
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| May-08-07 | | Marco65: I have just communicated the timeout.
Needless to say my latest analyses was done very quickly and I could bet a year of my salary there are mistakes in it, moreover since we are not breaking the pin on f7 immediately there is some risk involved. On the other hand it seems our best way to keep the rook to me. Anybody willing to support 28...Qh4 MUST double check it. Good night. |
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| May-08-07 | | chessmoron: <Marco> For Bh4...what would you respond if they play h6? Hopefully not g6 or gxh6. |
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| May-09-07 | | Marco65: First flaw in my analysis: 28...Bh4 29.Rg1 Qe5? 30.Bd4 Bg5 31.Bxe5 Bxd2+ 32.Kxd2 fxe5 [32...Nxe5 33.Nxb4+ Kf8 34.Nxc6 is even worse] 33.Ne7+ Kf8 34.Nxc6 Bxc6 35.Rf1 Be8
click for larger view
bad for us, maybe less than usual
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| May-09-07 | | Marco65: <chessmoron> 28...Bh4 29.h6 is not my main worry, 29...g6 (why not?) 30.Qd4 Qe5 |
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| May-09-07 | | Marco65: This site has been down for 2 hours!
I couldn't find any improvement to 28...Bh4 29.Rg1, because for instance 29...Kh8 30.Rg4 Bd8 31.Qd4  That's why 28...Bd8 should be safer:
28...Bd8 29.Rg1 Kh8 30.Nxb4 Rc8 31.Bxf7 Qxf7 32.Qxd6 a5
click for larger view
is a possible evolution.
<chessmoron> Your 28...Bxd5 seems natural, but we exchange their knight only to find a powerful queen in its place with the immediate threat of Ba4. That was a previous analysis: 28...Bxd5 29.Qxd5 Rc7 30.Bd6 Rc8 31.Rf1 Bf6 32.h6
click for larger view
do you still prefer this, or did you find an improvement? <TheAlchemist> We need another player on board, however difficult is it to find it now that the boat is sinking. I don't know if we are entitled to a replacement any more. |
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May-09-07
| | TheAlchemist: <Marco> I agree on 28...Bd8 29.Rg1 (best, I think), but I'm not so sure about 29...Kh8, I think 30.h6 is very good for white. We might have a shot in holding 29...Rxc2 30.Bxc2 Bxd5 31.Bd4 Ne5 32.Qh6 Qf7 33.Qxh7 Kf8 34.Qh8+ Qg8 35.Qxg8 Kxg8:
click for larger viewWhat do you think about it? |
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| May-09-07 | | Marco65: <TheAlchemist> Seems very risky. I found 33.Qxd6 and now? (33...Qf4+ 34.Kb1 Qxd4 35.Qxd8+ Kf7 36.Rf1+ Ke6 37.Bf5+ Kf7 38.Bc8+ Nf3 39.Rxf3+ ) But why not 28...Bd8 29.Rg1 Kh8 30.h6 g6
click for larger view
If 31.Qd4 Qe5, if 31.Bd4 Ne5. Unpinning the knight has its good |
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| May-09-07 | | Marco65: Although, admittedly, weakening the kingside is a concern, for instance from that diagram they might play: 31. Nxb4 Rc8
32. Bxf7 Qxf7
33. Qxd6 a5
34. Bd4+ Kg8
35. Qe5 Bf6
36. Qxe4 Bxd4
37. Qxd4 axb4
click for larger view
we are worse as usual... |
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| May-09-07 | | Marco65: <TheAlchemist> So 28...Bd8 seems better than 28...Rh4 because we can meet 29.Rg1. But what about 28...Bd8 29.Re1? Maybe: 28...Bd8 29.Qe5 30.Bd4 Qf5
click for larger view
31.Rg1? Bxd5 [31...Bg5? 32.Ne7+ Bxe7 33.Rxg7+ Kf8 34.Rxf7+ Qxf7 35.Bxf7 Kxf7 36.Qf4+ ] 32.Bxg7 Bxb3 (the discovery shouldn't do any harm) |
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| May-09-07 | | Zebra: I guess the Bd8 line is the best we have. Thanks, <Marco>. |
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