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alex388 16-Jun-13, 11:38 |
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alex388 16-Jun-13, 13:26 |
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zed2 16-Jun-13, 20:42 |
![]() Anyway I am interested so please don't interpret my 'no comment' ....to lack of interest....just that I'm still discovering how this all works. Joanna |
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![]() gameknot.com |
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![]() Then click the right button of the mouse and click on "Copy" Then, when you type in your message, at the point you want to place the link, Mouse Right Button and click on "Paste". Solves the problem of mis-copying. |
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![]() gameknot.com |
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![]() The Snowman. |
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![]() annotated by hogfysshe annotation > gameknot.com game w/computer analysis > ![]() An interesting long game. White grabbed a space advantage early and carried an edge through most of the game. Black played a strong defensive game and almost turned the tables, capitalizing on a few mistakes and questionable moves by white. Computer analysis suggests both players could have made better choices at several points. Thank you to snowman for a good game. Will be happy to hear any comments from the group. |
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zed2 23-Jun-13, 14:18 |
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bigpeta 24-Jun-13, 12:44 |
![]() on a different note Todd makes a lot of use of the GK computer analysis. I would just raise a little note of caution. When you use an engine analysis that you did not run yourself then you do not know what level the analysis was run to. Analysis depth is quoted in ply which is a half move. Thus 1.e4 is 1 ply a half move whilst 1. e4 e5 is 2 ply and a whole move. Now there are three important ply levels to consider. 10 ply will find most blunders and is fast. 15 ply will beat most online players and is the medium level used by most chess site analysis. 20 ply will find 99% the best moves. I have rarely seen an engine change its mind after 20 ply. The danger with 15 ply is that it can miss the best line due to the 'horizon effect'. This is where a move that looks good/bad at 15 ply suddenly changes at 20 ply. So overall i would suggest using the GK analysis for a quick check on what problems the game had but for deeper analysis then run your own engine to 20 ply. and finally if you dont understand the engine suggested move then find a friendly high rated player to explain it. |
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zed2 26-Jun-13, 17:38 |
![]() So please don't think my silence is either lack of interest. |
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![]() Try this out. |
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![]() Thanks for the lesson Zed! |
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![]() Anyway, very well played by David. Congratulations to him on the win. Highest rated opponent won against. 217 rating points above his next highest rated opponent in a non-timeout win!!! Game ![]() As for analysis..., white created an interesting situation with 18. h4 and 19. Qc2 putting strong pressure on f7 and h7. So black had to squelch this and in doing so started an unwanted tradeoff. Continuing the trend, at 23, black played the highly questionable BxN, removing the last of the minor pieces from the board on the idea that the disruption of white's pawns would justify the exchange. And perhaps the exchange was justified. This is not what caused the loss (though it did not help me like the game). The beginning of the end was at 27. Black insultingly underestimated his opponent and took a chance on an immediate pawn advance. All white needed to do was make one bad move and black would have it sewn up. But white made all the right moves, 29. Qd7 and then 31. Qb8+ (instead of taking the poisoned but unfortunately unappetizing pawn) being very good choices. Black made several misjudgments throughout this latter part of the game, the worst of which was to proceed with a queen exchange. This probably sealed the game. The endgame was characterized by good moves by white and dashed irrational optimism by black. At a few points in the endgame, I worked out, I THOUGHT, a way to at least draw, only to recheck and discover a flaw in my original assessment. Congratulations again to rjfsmith. Will have to see what impact this has on the battle for third in the mini tournament. Should be an exciting contest. |
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porcho 14-Jul-13, 16:36 |
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![]() Position after 26.Kg2: b Black to play. I would have rated Black's winning chances as very good from here. Let's look at the plan Black adopted. It is easy to understand: he decided at once to make capital from his passed pawn: 26...Qg5ch 27.Kf1 h5 28.Qd1 h4 29.Qd7 f5 Thrust and counter-thrust. White tried to stop the pawn by bringing the Queen back along the c8-h3 diagonal; Black's pawn advance blocks that scheme off. 30.Qxa7 ... This look irrelevant, but White is being very cunning, here, as you will see. 30...h3!? Possibly here Black ought to have been looking to refining his methods. An alternative worth looking at (another time) seems to be 30...Qd8, tying up some loose ends in Black's rear areas, but also eyeing ...Qd1ch, and if Qh4, ...h3. I'll look at that in a later posting. 31.Qb8ch! Kh7 32.Qh2 ... This is just about forced, and the h-pawn can make no further progress. But White has paid a high price for arresting the h-pawn's progress: the immobility of his Queen. As Black, I'd probably look at 32...Qh5 or 32...Qh4 here. But I'd also be looking to finding a better protected spot for my King. The White Queen can still emerge from her blockading position and deliver, if Black is not careful, a perpetual check. I'll leave the posting with this question: Black to move in this position: w What result? |
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zed2 14-Jul-13, 23:46 |
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![]() What Black has to worry about is the WQ coming out with a whole lot of checks - and it has to be said, that is actually quite hard to avoid. Let's try 32...Qh5 33. Qh1 ... The idea is that the king comes across to g1 and h2. 33... g5 34.Kh1 Kg6 35.Kh2 Qh8 36.Qe1 Qh4 37.Qd2 g4 38.fxg4 fxg4 39.Qd3ch ... And white is fighting on strongly. As Black really has to defend the h-pawn as a valuable asset, then a Q move to the h-file does seem to be indicated. But perhaps black should be looking at this point to add value to an asset hitherto neglected, the Q-side majority: 32....Qh5 33.Qa1 b5! 34.Kg1 a5! 35.Kh2 b4! 36.axb4 axb4 37.cxb4 cxb4 38.Qd1 ... to get the Queen into action - 38...b3!! The idea being: 39.Qxb3 Qxf3! and wins. Note that the h-pawn's imminent promotion in this line just about forced the commitment of White's major units to defending the h1-square. The attempt to free the queen for action takes a while, which Black used to make large gains on the other flank. From the first position in my previous posting, I might well have left the passed h-pawn sitting on h6 as a permanent asset, and seen about advancing the Q-side straight away. Not, however, without giving the line chosen by hogfysshe at least some considered thought. |
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zed2 15-Jul-13, 00:51 |
![]() It will take me a little while to digest all this and look at it further! Joanna |
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![]() Taking that last line in my last posting, can White do anything to cut across Black's plan to advance on the Q-side? What are the consequences? |
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![]() So a major lesson for me is not only one of strategy and technique but of better monitoring and managing my mental state. A review of my annotations of my games vs master players shows that this has been an ongoing challenge for me, staying calm and having ample psychic reserves, especially when unexpectedly jostled. I expect this is an issue for all players, one of those non-chess elements that is in fact absolutely a very-chess element. Thank you to Ion for his analyses. |
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archduke_piccolo 15-Jul-13, 05:16 |
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archduke_piccolo 15-Jul-13, 05:18 |
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![]() gameknot.com |
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bigpeta 16-Jul-13, 15:22 |
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zed2 16-Jul-13, 18:08 |
![]() I have also added some further comments |
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![]() gameknot.com |
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