Wednesday, October 01, 2008

Valley Chess September Open - Summary

I won the Valley Chess September Open, which finished yesterday!  

#Name
R1R2R3R4R5R6R7R8R9R10
1Randy Ho1928W6W10D4L2W3W7W8W5X12W68.5
2Kevin James Musil1807H--H--W11W1W4W8W12W6X7L38.0
3Peter J Fenger1624H--H--H--H--L1W12W11W8W6W27.0
4Hossein Ameri1757W11W7D1W9L2W6H--H--U--U--5.5
5Richard Smouse1526H--H--H--H--D7H--H--L1U--U--3.5
6Cortez Schenck1038L1H--W12W10L8L4W7L2L3L13.5
7Filip Bendiszunr.W8L4L10W12D5L1L6W12F2U--3.5
8Soren Aletheia-Zomlefer1155L7W12L9W11W6L2L1L3U--U--3.0
9Louis F Zajicekunr.H--H--W8L4H--H--U--U--U--U--3.0
10Harry Wexler1576W12L1W7L6U--H--U--U--U--U--2.5
11Jacob Al Cavaleri844L4B--L2L8L12H--L3H--U--U--2.0
12Mateusz Bendiszunr.L10L8L6L7W11L3L2L7F1U--1.0

As you can see, I was in 2nd place for most of the tournament. I overtook 1st place only after the last round. There were only three games which I felt that I played well. Rounds 6, 8, and 10. Here is a summary of my games.

In Round 1, I was Black in a Bogo-Indian Defense. 


In this equal position, I played 16...Rfe8, "hanging" my pawn. My opponent took the bait. The game continued 17. Qxe5 Bh3 18. Qxe7 Rxe7 19. Bg2 Bxg2 20. Kxg2 Rxe2, and soon my rooks were very active. I won.

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In Round 2, I was White in a Four Knights Opening. My opponent mixed up his openings and blundered on move 6. 



Here, he played 6...Nxe4?? I was able to keep the extra piece. 7. Qxe4 Re8 8. Bd3 g6 9. O-O d6 10. Nxc6 Rxe4 11. Nxd8 1-0. For extra credit, reconstruct the first 6 moves of the game.

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In Round 3, I was Black in a Colle-type Opening. 



We reached this King and Pawn endgame. I judged that I had winning chances due to my protected passed pawn, but apparently not. My opponent easily held the draw.

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You can read about Round 4 in the previous post. I lost that game.

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In Round 5, I was White in a Closed Sicilian. I was totally outplayed in the opening. I had a very bad position. My f-pawn was very very weak, and to make matters worse, I was down to 9 minutes. 



Then a miracle happened. He played 20...Bxf4?? 21. Rxf4! Qxf4 22. Qxe3 Qxe3+ 23. Bxe3 and I eventually won because my Bishop pair made themselves felt.

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In Round 6, I was Black in an opening resembling the Maroczy Bind of the Accelerated Dragon.



In this position, I found 18...Rxc4+! 19. bxc4 Qa3+ 20. Kb1 Bf5+ 21. Qc2 Qb2# 0-1

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In Round 7, I was White in a French Winawer.  I won the Exchange on move 16, but there was still a lot of game to be played.



Here, I played 28. f5! breaking through and I eventually won.

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In Round 8, I was White in a Alapin Sicilian. 



White has a positional advantage, and is up a pawn. The game concluded 24. Nd4 Nc4 25. Bxg6 Bxe5 26. Bxe5 Nxe5 27. Qxe5 Qxe5 28. Rxe5 fxg6 29. Rae1! 1-0

I imagine that most players around my rating would have captured the pawn on e6, but 29. Rae1 is stronger, as confirmed by Rybka.

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In Round 9, my opponent did not show up and I won on forfeit.

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In Round 10, I was Black in a King's Indian Defense. I was happy with the way I played in this game, because I did not try to overpress and deliver a knock out punch. I just played solid moves, improving my position little by little, and trying to take play away from my opponent.



Here, I played 29...Bc3! and my Rooks took over the file. I won in 72 moves.

Saturday, September 13, 2008

Round 4

K. Musil - R. Ho
Valley Chess Sept Open (4)
Coffee Buzz, Ahwatukee, 9/9/08

1. d4 Nf6 2. Bg5

The Trompowsky Opening. A good choice, because I was not familiar with the lines.

2...c5 3. c3 Qb6 4. Qb3

Already on move 4, I had to make a big decision that would determine the character of the game.  I had to choose between cxd4, Qxb3, Nc6,  Ne4, or maybe something else? Unfortunately, all moves looked the same to me, so I chose one at random.

4...Nc6 5. e3 d6

I should have considered 5...Ne4 6. Bf4 g5 7. Bg3, which looks better than what happened in the game.

6. Nf3 Be6

Not a bad move -- It develops with tempo, but I later regretted placing the Bishop here.

7. Qa3

This move surprised me. I was expecting 7. Qxb6. The Queen looks awkward on a3, but Black has no effective way to exploit it.



7...Bf5

I had some trouble finding the right squares for my pieces. How to develop my dark square Bishop? 7...g6 is probably met by Bxf6, weakening the d6-pawn. Or 7...h6 8. Bf4 g5 followed by Bg7, and it's psychologically hard for Black to castle kingside. In the end, I opted for Bf5, e6, Be7, although in this plan, White can still play Bxf6.

8. Nbd2 

A fine move. The Knight is heading to c4.

8...cxd4 9. Bxf6!?

A zwischenzug! Apparently my opponent did not want me to play ...Ne4.
Here, I spent five minutes on 9...dxe3 trying to make it work. During the game, I saw 9...dxe3 10. Nc4 exf2+ 11. Kd1, and Black's initiative is gone. When I couldn't see a way to continue the "attack", I gave up. When I put this position in Rybka, it prefers Black. 11...Qc7 12. Bh4 d5 13. Ne3 Be4 14. Bxf2 Qf4, and I guess Black's piece activity and two pawns more than enough compensation for the piece. Although a famous international master once said that a piece is worth nine pawns.

Anaylsis Diagram - after 14...Qf4

9...gxf6 10. Nxd4 

The second moment (the first one was on move 4) where I had to make a big decision. These kinds of positions demand a good understanding of chess as opposed to calculating ability. Should I play Nxd4 or Bd7? 

10...Bd7? Following the rule of Never Trade, but moving backwards is passive.

11. Nc4 Qc7 12. Nb5 Qb8?

Here, I let my guard down. It was psychologically difficult for me to play Qd8, returning the Queen to its original square. Also, with Qb8, the d6-square is protected for a third time. So I played Qb8 automatically and quickly.

13. Be2?

White had a tactical shot 13. Nb6! winning the Exchange.

13...Ne5?

It was not too late to play 13...Qd8.



14. Nb6!

White sees it the second time around. One interesting point is that 14...Bxb5 is met by 15. Bxb5 CHECK.

14...axb6 15. Qxa8 Qxa8 16. Nc7+ Kd8 17. Nxa8 Bc6

The idea was that if White takes time to defend g2, then I can play ...Nd7 (protecting b6) and try to win the Knight in the corner.

18. Nxb6 Bxg2 19. Rg1 Nf3+

Hoping that my Bishop pair would be an asset.

20. Bxf3 Bxf3 21. Rg3 Bh5 22. Nd5!

Making it difficult for Black to free himself.

22...Kd7 23. a4 Bg6 24. a5 Kc6 25. Nf4 e5 26. Nxg6 hxg6 27. h3 Be7

I was in a hurry to activate my rook. Better was 27...d5, giving my Bishop more scope.

28. e4 Ra8 29. c4 Kc5

I played this before White could play b4 and lock my King in.

30. Rb3 Ra7 31. Ra4.

It is funny that Rybka suggests 31. O-O-O!

31...Bd8 32. Rba3 Kd4 33. f3 Kc5 34. Ke2 Ra8 35. Kd3 f5 36. b4+ Kc6 37. Ra1 Bg5 38. exf5 gxf5 39. Rg1 Bf6 40. Rh1



40...b5 

An attempt to confuse the issue. 

41. cxb5+ Kxb5

Here my opponent almost played 42. Rha1. I would have played 42...e4+ discover attack on his rook. (Rybka says 42...d5 is stronger (=), but I don't get it)

42. Ra2 Kxb4 43. Rb1+ Kc5 44. Rb7 Kd5 

Seeing no good way to protect f7 (Rf8 was out of the question), I decided to play actively.

45. Rb5+ Kc6 46. Rb6+ Kd5 47. a6 e4+ 48. fxe4? 

Apparently 48. Ke2 is much better.

48...fxe4+ 49. Ke2.

Of course, not 49. Ke3?? Bd4+

49...Bd4 50. Ra5+ 


50...Ke6??

It is a pity that I fought hard being down the Exchange to get a playable position (okay, maybe it's still lost), only to blunder badly in time trouble. 50...Bc5 was better.

51. Rb4!

Black loses the e4 pawn here. Both players were blitzing out their moves. Eventually, Black had two connected pawns, and White had a Rook. Black seemed to be holding the position together for dozens of moves, but then White found the key move:


In a position similar to this, White played Re8!. In order to save the e-pawn, Black has to play ...e3 allowing Kd3, or ...d3 allowing Ke3, winning in both cases. Black lost both pawns and played until checkmate.

1-0

Wednesday, September 10, 2008

Rounds 3 and 4

Last night my opponents got tougher. I drew a 1700 and lost to a 1800.  Here is a position from one of my games.


White to Play

Tuesday, September 02, 2008

Back to Chess


Today I played in the Valley Chess September Open. It is ten rounds -- two games every Tuesday night in September. Tonight was rounds 1 and 2. There are several reasons that I played.

1. The time control is G/60 rather than the usual G/30,
2. The location (Coffee Buzz) is close to where I live, and
3. Playing chess is good therapy for my brain.

For the first time in my life, I didn't get into any time trouble! I am very proud of myself for this. 

Stay tuned for annotated games.

Sunday, December 23, 2007

An Accidental Checkmate



I was playing a 5-minute game on ICC tonight. I had a winning endgame, but the problem was that I was down to 1 second on my clock (Yeah I know, I need to move faster), and my opponent had almost two minutes. No problem, I thought. I will just promote my pawn to a Queen and sacrifice it for the pawn on g6 and get a draw.

In the picture above, I have just played 57. a7, and I premoved 58. a8=Q. When my opponent played 57...Ne6???, my BlitzIn made a DING sound to indicate the game was over. Turns out that 58. a8=Q was checkmate.

Wednesday, October 03, 2007

Oops

Oops, it appears that my USCF membership has expired :(
Since I was rarely playing in any chess tournaments anyway (Valley Chess once every three months is not very frequent), I don't have a strong motivation to renew. So I am temporarily retired from tournament chess. I will still continue to play on ICC though. My handle there is Googly.