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Up Topic The Rybka Lounge / Chess / Do do I go about finding this move.
- - By irulats (****) Date 2014-08-03 21:26
In Round 1 of the Chess Olympiad, black was 700 ELO higher than white. In this position, white has just played 18.g3. Black's automatically played 18...h5 and the game was over. At what level of chess understanding do moves like these become obvious? Is there anything I should be doing to find them? Suggestions, please, if you have the patience.

4k2r/1q1p1ppp/p3p3/1pb1Pn2/2r5/P1N3P1/1PPB1P1P/2RQR1K1 b k - 0 18
Parent - - By Labyrinth (*****) Date 2014-08-03 23:56
When I looked at this the first thing I saw (like in 500 ms) for some reason was that the pawn on f2 was pinned, so if the pawn on h2 wasn't there it could be captured by the black knight. Under that alone h5 looks reasonable because it seeks to pressure g3 further.

I can't say that I'd play the move h5 if some kind of fast time control game. I might just do something stupid like castles, but g3 would "register" in my mind as at the very least dubious.

Granted that if white's pawn was on g2 and it was black to move, Nh4 would be a deadly move for white to face. While g3 stops this, it is a dreadful solution.

If you look at things positionally, white's pieces are all clumped together in the center, while black's are all aimed at white's kingside that is largely undefended. A move like g3 does nothing to rectify this, and creates another weakness.

Black has the c4 rook, queen, bishop, and knight in the attack, h5 adds another attacking unit, and potentially enables the h8 rook to exert even more pressure on white's undefended king side.

Instead of g3, white's best bet was Qe2, after which if black plays Nh4 white can play Ne4 stopping up the works. Already white's kingside is looking better defended, and black less coordinated than before.

I recommend Kasparov's "My story" because this position reminded me of some of the games he talked about.
Parent - By irulats (****) Date 2014-08-04 12:14
My thanks Labyrinth, for taking the time to reply so comprehensively. This is the kind of answer I was looking for. I'll have a look at your suggestion this evening. In my over the board games, stronger opponents often create major stress for me with unexpected moves like this. When I analyse them later there are the computer's obvious choice. Vice -versa I find that I miss killer blows myself (sometimes for a couple of moves). I think reaching this step in understanding is the key to my progression. :smile:
Parent - - By Felix Kling (Gold) Date 2014-08-04 17:00
There are different ways to get to h5. My would be like this:

1) I'm attacking, so the logical move 0-0 isn't that attractive (although probably also enough for a win ;-))
2) I'm attacking, but sacrifices or other quick (tactical) ways to finish the game don't work
3) The rook on h8 is not in the game.
4) Against white's pawns (h2-g3) the typical brake to open lines is h5-h4 (acutally you always play those moves against pawns like that, e.g. against a2-b3-c4 you would always want to play a5).
5) h5 h4 doesn't work due to the pin of f2
6) I would slightly worry about my rook on c4, so I make sure it's not lost during my combination (but even h5 b3 h4 (or Rxc3) seems to work)
7) Play h5 :-)
Parent - - By irulats (****) Date 2014-08-04 19:37

>4) Against white's pawns (h2-g3) the typical brake to open lines is h5-h4 (acutally you always play those moves against pawns like that, e.g. against a2-b3-c4 you would always want to play a5).

Thank you as well, Felix. Okay, so I can understand this concept a little. I have heard others talking about break moves in the middle game but I never really saw any exercises that I could do to help me to set them up in a real game. I guess they are part of the next level in chess understanding. I am slowly getting better at tactics and at time management. If I can survive to the ending, I can sometimes even swindle a win from a losing position. I just need to be able to pounce on my opponents indiscretions after the opening and not make any myself and I'm free at last from patzer status! :smile:
Parent - - By Felix Kling (Gold) Date 2014-08-05 11:52
Against f7-g7-h6 the typical move is g4 btw. . That's why playing h6 can be quite some disadvantage if white didn't castle yet- g4, h4, g5 and you open lines easily. you often see this on the other side of the board, namely attacking on the queenside with b5-b4 against a3.
Note that without h6 or g6 (that's f7-g7-h7) a brake is more difficult (but the opponent's pieces have more squares).
Parent - By irulats (****) Date 2014-08-11 21:14
Cheers, Felix. You have given me a lot of strong ideas here.
Parent - - By Christian Packi (****) Date 2014-08-11 01:58
Actually the first thing I noticed was the weakened h1-a8 diagonal, due to g2-g3. If a rook would be on h1 it would be mate. So even if the f-pawn would not be pinned h7-h5-h4-hxg3 would be the attacking idea. If white had to take back with the f-pawn the second rank would we very weak, and white's king position shattered.
Parent - By irulats (****) Date 2014-08-11 21:13
Thank you, Christian. Another interesting idea and easy enough for me to learn and be aware of. I heard a GM saying that stronger players 'imagine' their pieces on certain squares then work out how to get them there.

PS I'm just after noticing that I even made a mess of the title of this post. It should be 'How do' not 'Do do'. I must be a Dodo! :confused:
Up Topic The Rybka Lounge / Chess / Do do I go about finding this move.

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