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-   -   CHESS: Subsim team versus Letum (https://www.subsim.com/radioroom/showthread.php?t=141699)

Skybird 09-12-08 04:36 AM

Quote:

Originally Posted by porphy
One idea for black is to keep going after the queen.

Yes, that means exploiting the advanatge in the dimension of time. One makes developement moves and improvements to one's positions , while the opponent is forced to move with the same oiece time and again. A constant generation of threats keeps him busy and hinders him from gaining the initiative.


Quote:

My idea for black is 7. Nf6 - g4... (which threatens to be followed by Bh4)
That is a very good first move for the reasons you gave, but the second simply costs you the bishop. The red line between genius and suicide is a very small one :D


After 7. Qg3

http://img386.imageshack.us/img386/2247/pos3yj2.jpg

porphy 09-12-08 04:52 AM

Quote:

That is a very good first move for the reasons you gave, but the second simply costs you the bishop. The red line between genius and suicide is a very small one :D
Very true indeed, but I fail to see why Bh4 costs me the bishop? It is guarded by my queen, at least on my board ;)



Of course, white could sacrifice his queen in exchange of two lighter pieces, but I think that would be all good for black in the long run.

Cheers Porphy

Skybird 09-12-08 05:06 AM

Quote:

Originally Posted by porphy
Quote:

That is a very good first move for the reasons you gave, but the second simply costs you the bishop. The red line between genius and suicide is a very small one :D
Very true indeed, but I fail to see why Bh4 costs me the bishop? It is guarded by my queen, at least on my board ;)

Of course, white could sacrifice his queen in exchange of two lighter pieces, but I think that would be all good for black in the long run.

Cheers Porphy

:oops: My fault. Forget it.

Nevertheless Bc8-h4 could be easily prevented by h2-h4.

porphy 09-12-08 05:27 AM

Quote:

Nevertheless Bc8-h4 could be easily prevented by h2-h4.
Also true, but the continuation could look something like this.

7... Nf6 - g4
8. h2 - h4, d5xe4
9. Nc3xe4, f7 - f5
10. f2 - f3, f5xe4
11. f3xg4, 0-0
12. Bf1 -e2, e4xd3

Now, what do we think of the resulting position?

The downside of this way of playing tactical moves, I think, is that it's very taxing calculating everything. (I have not done all variations. Especially if you are a beginner at chess, one will certainly stumble somewhere. On positive side, white has to do the calculations as well...;) )

But I still think this way forward is good for black and could be a way to eventually strip the king of his defenses. (which is the main idea, as you say, as he is stuck in the center). Basically the tactical attack on the queen is a way to get the center rolling in favor of black. I certainly don't claim this to be a certain outcome by any means, but it keeps initiative on the black side as he pursues the main strategical goals of the position is this game.) Might be easier ways to do that though, suggestions welcome!

cheers Porphy

Skybird 09-12-08 06:24 AM

Quote:

Originally Posted by porphy
Quote:

Nevertheless Bc8-h4 could be easily prevented by h2-h4.
Also true, but the continuation could look something like this.

7... Nf6 - g4
8. h2 - h4, d5xe4
9. Nc3xe4, f7 - f5
10. f2 - f3, f5xe4
11. f3xg4, 0-0
12. Bf1 -e2, e4xd3

I give the main match and the actual status on the wooden board, and all variations on the blue board from now on, so that players do not mix it up.

After Porphy's variation:
http://img355.imageshack.us/img355/5140/pos4gv1.jpg

However, compare to this:

8. h2-h4/d5xe4
9. f2-f3/f7-f5
10. Qg3-e1/e4xd3
11.c2xd3


http://img395.imageshack.us/img395/6053/pos5fw6.jpg

I think the second variation gives white a slightly better defence.

Let's leave it here since we have lost Lance behind. I fear this is a bit too much for him.

Skybird 09-12-08 06:44 AM

I'm getting trouble with more and more websites since two hours. I wonder if Ike has something to do with it.

porphy 09-12-08 06:44 AM

Thanks Sky, good idea with different color for the boards with variations.

I don't want to totally derail the main game, just trying to show one way onwards, which looks a bit interesting. And for the guys you train, it is always good to just play through a variation on the board. It all adds up to collecting chess experience. But we have to stop analyzing at some point, and make a educated decision from what we got. All us involved will still learn from whatever route the game takes. :up:

UnderseaLcpl 09-12-08 07:36 AM

Quote:

Originally Posted by Skybird
Let's leave it here since we have lost Lance behind. I fear this is a bit too much for him.

No worries. I am keeping up with you (mostly:D )

I like porphy's move of Nf6-g4. I considered it before, but it got lost in the pages of notes I have scribbled down.

I'm beginning to see, though.

Nf6-g4, official move.

And I bet I can avoid losing the knight at d4 as well:D

Letum 09-12-08 07:46 AM

move 8

h2-h4

UnderseaLcpl 09-12-08 08:09 AM

White 8. h2-h4

Black 8. g7-g5

Skybird 09-12-08 08:16 AM

http://img178.imageshack.us/img178/7...artmanplg6.jpg

"You'll regret that move...!"


http://img141.imageshack.us/img141/3113/image3vq4.jpg

No patience, eh? Then you are wrong in this game. You completely shifted the balance with just one premature move, and made the fortune of war changing sides.

porphy 09-12-08 08:29 AM

As the drill sergeant said. Perhaps not the best way to continue no...., but what made you decide for g7-g5 UnderseaLcpl? What pro and cons did you find with this move?

(you said you where afraid to lose the Knight at d4 at some point, I think the knight at g4 could be in some real trouble soon :D )

cheers Porphy

UnderseaLcpl 09-12-08 10:00 AM

Maybe white e4xd5, Black c7-c6
Or white h4xg5, black e7xg5 white Bc1xg5, black Qd8xg5
Or white Bc1xg5 Black Be7xg5, white h4xg5 black Qd8xg5
Or white Bc1-e3, black g5xh4, white Qg3-h3, Black Ng4xf2
Or white Bc1-e3, black g5xh4, white, whatever, the queen dies.
Or white Bf1-d2, black g5xh4, same thing, basically.

I'm not sure, I'm probably missing something.


I chose g7-g5 because I don't see an exchange going in white's favor. And I still don't see how I would lose that knight at g4.

Maybe white Nc3xd5, black Be7-d6?

Oh crap. If this is that en passant thing I'm going to shoot myself:roll:

porphy 09-12-08 10:31 AM

Quote:

I chose g7-g5 because I don't see an exchange going in white's favor. And I still don't see how I would lose that knight at g4.

Or white h4xg5, black e7xg5 white Bc1xg5, black Qd8xg5
After this variation comes white f2-f3 threatening the Knight at g4 and the queen behind it is unguarded, I thought.... but black can play Ng4 -e3+ and it is the white queen that is going to the otherworld! Missed that one in the first instance! Correct, you don't lose the knight. But it can certainly be a target very soon, as its life hangs mostly on a the tactical escape.

In the above variation the real threat of counter play for white is perhaps that the black queen now leaves c7 unprotected. White can immediately play Nc3xd5 and black drops a pawn and has to defend against the threat at c7, possibly losing his castling.

cheers Porphy

Skybird 09-12-08 10:34 AM

Quote:

Originally Posted by UnderseaLcpl
Or white h4xg5, black e7xg5 white Bc1xg5, black Qd8xg5
I chose g7-g5 because I don't see an exchange going in white's favor.

You did not see white's next move: Nc3xd5, and he has one pawn more, threatening Sd5xc7+ next. Gone is your king's security.
Quote:

Maybe white Nc3xd5, black Be7-d6?
White moving Sd5: is wishful thinking, because he would commit immediate Harakiri by that:

9. Nc3xd5?? g5xh4!!

Now check where the Queen can go, she has only one free square.

10: Qg3-h3 and a lethal fork by Black with Ng4xf2+!!!

and murder on the dancefloor in the next move. White is done.


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