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| Mechanics Chess Room Stairway |
The Tuesday Night Marathon
"The Mechanics' Tuesday Night Marathon has a rich tradition that dates back at least 30 years. The idea of playing serious chess one night a week has appealed to a broad range of players from Senior Master to beginner, who find the time commitment fits their schedule quite comfortably. Today we think of eight rounds as the normal duration for a TNM, but that has not always been the case. In 1975 they played 12 rounds per tournament. Recently the Marathon switched to having sudden death for the second time control. It was probably the last tournament in the world to still feature adjourned games, the rest of the chess community having given up the practice years ago due to the rise in playing strength of computers. The Mechanics' still has several hundred adjourned move envelopes, which will no doubt become collector's items.
The TNM not only provides strong competition for players ranging in strength from Master to beginner, it's also very affordable with an entry fee of $40 for eight/nine USCF rated games. The Marathon is a perfect fit for those who can't commit an entire weekend to chess. No matter what your strength, the Tuesday Night Marathon might be the right tournament for you!"
IM John Donaldson
MI Chess Room Director and TNM TD
MI Chess Room Director and TNM TD
http://chessclub.org/TNMstandings.html
The last post in 2012, I decided to write about Mechanics Fall TNM 2012 in which I just finished 6.5 ouf of 9 rounds couple weeks ago. I went undefeated and clear 4th place, which qualified me to won the expert section. Before I talk about Fall TNM 2012, there are so many unforgettable histories and experiences I played in TNMs that I want to share and review over the last 2 years. In 2009, the very first time I played in rated tournament in USA, which was the Fall TNM. It started my victory over 17 hundred player. I still remember that time I was super excited to win my first game in the tournament. On top of that , I even drew against 19 hundred player and lost an expert. It was pretty amazing performance for me, who was unrated and hadn't played a chess for a long time ever since I graduated my high school in Mongolia, 2007. During the college years, in University of Mongolia, unfortunately, I had no time for chess at all. Frankly, my victory over 17 hundred player in Mechanics was a huge influence to get me back to chess again. |
| During break between rounds, Mechanics, SF |
Byambaa,Uyanga - Campers,Willie (1742) [C02]
Mechanics' Fall TNM; 30/90, SD/30 San Francisco (3.20), 03.11.2009
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| Position after 20. Qh4 |
Here is the one of my games I defeated a master.
Byambaa,Uyanga (1803) - Shakhnazarov,Oleg (2208) [B42]
Mechanics' Spring TNM;
30/90, SD/30 San Francisco (7.12), 27.04.2010
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| Position after 31.Bxf7 |
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Be7 6.0-0 d6 7.Be3 Nd7 8.c3 Ngf6 9.Nd2 Ne5 10.Be2 h5 11.h3 Ng6 12.f4 e5 13.fxe5 dxe5 14.Nf5 Kf8 15.Bc4 b5 16.Bb3 Bxf5 17.Rxf5 Qd3 18.Qe1 Nh4 19.Rxe5 Bd6 20.Bc5 Ng6 21.Bxd6+ Qxd6 22.Rf5 Re8 23.Qf2 Ne5 24.Qd4 Qc7 25.Re1 Rh6 26.Nf3 Nxf3+ 27.Rxf3 Rg6 28.e5 Qc6 29.Ref1 Kg8 30.exf6 Re2 31.Bxf7+ Kxf7 32.fxg7+ Ke6 33.Rf6+ Ke7 34.Rf7+ Ke8 35.Rf8+ Ke7 36.Qd8+ Ke6 37.Re8+ 1-0
In Summer TNM 2010, even though I got 4 out of 8 including some win over experts, I still gained about 100 rating points.
Fall TNM 2010 was another successful one. I finished 5.5 out of 9 without playing my last round and picked up about 100 rating points to get my rating 1973. (I remember the reason I couldn't make was the same day and the same time my final exam was scheduled. ).
"National Master Peter Zavadsky, Experts Hayk Manvelyan, Oleg Shakhnazarov and Igor Traub and Class A player Uyanga Byambaa are tied for first after three rounds of the Fall Tuesday Night Marathon with perfect scores. Byambaa, a 20-year-old Mongolian student, has been particularly impressive with wins over Expert Steven Gaffagan and National Master Russell Wong the last two rounds.
Peter Zavadsky, Christophe Bambou and Demetrius Goins share the lead in the Fall Tuesday Night Marathon with 4.5 points from 5 rounds. A large group of players are tied at 4 including 20-year-old Mongolian student Uyanga Byambaa of Oakland who has score 200 point or more upsets in three of her last four games." "/Mechanics' Institute Chess Club Newsletter #512/
Byambaa,Uyanga (1854) - Wong,Russell (2200) [B03]
Mechanics' Fall TNM; 30/90,
SD/30 San Francisco (3.5), 02.11.2010
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| Position after 21. d5 |
In Winter TNM 2011, I had an outstanding result, 6 out of 8. In last round, on board 1, I faced against IM Walter Shipman and game ended with unfortunate draw by losing my winning chances blundering a pawn in time pressure. It cost me to miss the opportunity to tied for first.
"International Master Walter Shipman, who turns 82 on April 18th, has clinched at least a tie for first in the 2011 Mechanics' Institute Winter Marathon after defeating top-seed NM Peter Zavadsky last night. Shipman leads with 6.5 from 7 with NM Robin Cunningham and rapidly improving Uyanga Byambaa tied for second with 5.5 points. As Shipman drew Cunningham in round 4 he will face Byambaa in the last round."/Mechanics' Institute Chess Club News 526/ http:/ /chessclub.org/news.php?n=526
IM Walter Shipman made history last night by becoming the oldest ever winner of the Mechanics' Institute's Tuesday Night Marathon series which dates back to the early 1970s. Shipman almost had company at the top. Leading by a point going into the last round he saw one of his pursuers - NM Robin Cunningham - win quickly and the other - Uyanga Byambaa - quickly obtain a promising position against him. The rapidly-improving 20-year-old Mongolian student hoped to repeat the earlier TNM triumph of her fellow countrywomen Batchimeg Tuvshintugs, and for much of the game against Shipman it looked certain she would be victorious, but the wily veteran saved a difficult rook ending to emerge alone with 7 points from 8 games. NM Cunningham was second with 6.5 followed by Byambaa (who picked up 79 points to raise her rating to 2051) and Expert Igor Traub. "/Mechanics' Institute Chess Club News 527/ http://chessclub.org/news.php?n=527
Byambaa,Uyanga (1829) - Shipman,Walter (2200) [C60]
Mechanics' Winter TNM;
30/90, SD/30 San Francisco (8.1), 22.02.2011
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| Position after 45....Rxa2 |
54...Re8+ 55.Kf5 Rf8+ 56.Kg6?? Rxg4+ 57.Rg5 Rxg5+ 58.Kxg5 Rf1 59.Rd7 Ra1 1/2-1/2
In Spring TNM 2011, I started off incredibly 5 wins in a row but ended up tough fighting 3 loses.
"Uyanga Byambaa is leading the Spring Tuesday Night Marathon with a perfect score after 5 rounds. Presently rated Rated 2050 - up over 200 points in the last six months - the 20-year-old Mongolian student has defeated three strong Experts and drawn with a National Master in this event to date. Should she win Byambaa will become only the second women champion in the close to forty year history of the TNM series. Countrywomen Batchimeg Tuvshintugs, recent winner of the 2011 Mongolian Womens Championship, tied for first in the Fall 2006 and Winter 2007 TNMs." /Mechanics' Institute Chess Club Newsletter 533/ http://chessclub.org/news.php?n=533
Byambaa,Uyanga (1985) - Jones,James (2077) [B07]
Mechanics' Spring TNM;
30/90, SD/30 San Francisco (5.1), 12.04.2011
[Analyses by John Donaldson]
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| Position after 25.Rxf7 |
12...c5?! [12...b4 was a more logical followup.]
13.dxc6 Bxc6 14.0-0-0 bxa4 15.Nxa4 d5 16.Bc5?! [16.g5! Nxe4 17.fxe4 d4 18.Nxd4! exd4 19.Bxd4 leaves White solidly on top.]
16...d4 17.Nb6 Rb8 18.Nc4 Nd7 19.Bd6 Rc8 20.Qb4 Re8 21.Rhf1 Bb5 22.f4 Nc6 23.Qa3 Qh4 24.fxe5 Qxg4 25.Rxf7?! [25.Nxd4 is the normal move with roughly equal chances but this isn't the way Uyanga plays chess! The text deserves an exclamation mark for imagination and courage but ultimately is not sound.]
25...Qxe2 [25...Kxf7 26.Ne3+ ]
26.Nb6 Bh6+ 27.Kb1 Qxd1+ 28.Ka2 Kh8 29.Nxc8 Rxc8 30.Rxd7 Na5? [30...Qe2 or; 30...Qe1 , preparing to capture on e4 brings the Queen back into action and keeps an eye on White's dangerous e-pawn.]
31.Qxa5 Bxd7 32.e6 White is still down a rook but this powerful passed pawn balances the chances.
32...Bb5?? [The last mistake costs Black the game. He had to return material with 32...Qg4 33.exd7 Qxd7 intending moves like ...Bg7 and ...d3 keeps Black in the game.]
33.e7 Qg4 The right idea but a move too late.
34.Qd8+ Be8 35.Be5+ Bg7 36.Qxd4 h5 37.Bxg7+ Kh7 38.Bf8 An imaginative game by young Miss Byambaa. 1-0
Byambaa,Uyanga (1985) - Shakhnazarov,Oleg (2160) [C96]
Mechanics' Spring TNM;
30/90, SD/30 San Francisco (3.2), 29.03.2011
[Analyses by John Donaldson]
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| Position after 25.R8e7 |
11.exd5 [11.d3 is played by those who want a quiet life while; 11.d4 is just as popular as the text.]
11...e4 12.Ng5 Nxd5 13.Nxh7 [13.Nxe4 f5 14.Ng3 f4 15.Ne4 f3 16.d4 fxg2 has been tested in several high level (+2700) encounters. Byambaa was making things up as she went along having no idea this was a theoretical variation.]
13...Kxh7 [In an earlier game Black met 13.Nxh7 poorly - 13...Re8 14.Bxe4 Be6 15.Qh5 Qd7 16.Nf8 g6 17.Qh7+ ]
14.Bxe4+ Kg8 15.Bxd5 Qxd5 16.Rxe7 Bb7 This is certainly playable but Black had interesting alternatives in [16...Bxh3 (winning the pawn back right away) 17.Qf3 Qxf3 18.gxf3 Rae8 ; and 16...Be6 17.d4 Qd6 18.Rxe6 Qxe6 19.Nd2 with roughly equal chances.]
17.Qf1 [White needs to not only protect g2 but also his back rank. For example 17.Qg4 Rae8 18.Re3 Nc4 leaves White without a good move.]
17...Rae8 18.Re3 Nc4 [18...f5 19.d3 f4 20.Rxe8 Rxe8 21.f3! Qe5 22.Nd2 Qe1 23.Ne4 ]
19.Rg3 f5? [The idea of advancing the f-pawn is mistaken here. Better is 19...Nd6 with some but probably not enough compensation for the pawn.]
20.d3 Nd6 21.Bf4 Re6 22.Nd2 Rfe8 23.c4 [23.Nf3 Re2 24.Nd4 Rxb2 25.Qc1 Rxa2 26.Rxa2 Qxa2 27.Bxd6 cxd6 28.Nxf5 ]
23...Qd4 24.Be3 Qxb2 25.Nb3 R8e7 [25...R6e7 26.Bf4 ]
26.Nc5? [26.Bd4! Qc2 27.Bxg7 Rxg7 28.Rxg7+ Kxg7 29.Nd4 would have been a pretty finish.]
26...f4? [The final mistake. Oleg had to play 26...Rxe3 27.Rxe3 (27.fxe3 Qe5 ) 27...Rxe3 28.fxe3 Bxg2 29.Qc1 Qe2 with good practical chances to save the game.]
27.Bxf4 Rf6 28.Bxd6 cxd6 29.Nxb7 Rxb7 30.Re1 Rbf7 31.Re2 Qc3 32.Re8+ Kh7 33.Qd1 Rh6 34.cxb5 axb5 35.d4 Qb2 36.Qd3+ g6 37.Qe3 Rh5 38.Rf3 Rhf5 39.Qg5 Qxa2 40.Qh4+ Rh5 41.Rxf7+ Qxf7 42.Qd8 Kh6 43.g4 Rd5 44.Qh4+ Rh5 45.Rh8+ Kg7 46.gxh5 1-0
In Summer TNM 2011, 6 out of 8. Last round on board 1 against NM Robin Cunningham, because of the missing the easy winning endgame the game ended up an unfortunate draw, which caused to tied for second.
"The Summer Tuesday Night Marathon is turning into quite a dogfight. Four players - Sevan Buscara, Robin Cunnigham, Todd Rumpf and Uyanga Byambaa - are all tied for first with 5.5 from 7 with one round remaining." /Mechanics' Institute Chess Club News 543/ http://chessclub.org/news.php?n=543
NM Sevan Buscara took top honors in the MI Summer Tuesday Night Marathon scoring 6.5 from 8. Tying for second at 6 were FM Robin Cunningham, NM Evan Sandberg and Expert Uyanga Byambaa. http://chessclub.org/news.php?n=545
Uyangaa Byambaa - Sevan Buscara
Summer Tuesday Night Marathon (4) 2011 /Analyzes by IM John Donaldsan/
1.e4 d6 2.d4 Nf6 3.Nc3 Nbd7
The text and 3...e5 are the modern move orders to reach the Phildor.
4.f4
4.Nf3 e5 5.Bc4 is most common seen.
4...e5 5.Nf3 exd4 6.Qxd4 c6 7.Bc4
7.Be3 often followed by castling queenside is the strongest challenge to Black's setup.
The text allows the second player to quickly obtain a strong position.
7...d5! 8.exd5 Bc5 9.Qd3 0-0 10.Bd2 Re8+ 11.Ne2 cxd5 12.Bxd5 Nxd5
13.Qxd5
All this has been seen before. Black has tremendous compensation for the sacrificed pawn.
13...Qe7 14.0-0-0 Nf6 15.Qc4 b5
15...Be6 16.Qa4 Bd7 17.Qc4 b5 was a strong alternative
16.Qxb5 Bd7 17.Qc4 Qxe2 18.Qxc5 Rac8 19.Qa5 Qxg2 20.Nd4 Bg4
21.Rdg1 Qe4 22.h3 Qxd4 23.hxg4 Ne4 24.Re1
24.Rg2 Nf2!
24...Red8 25.Rh2 Nf2 26.Kb1 Qxd2 27.Re8+
This looks like a stock combination but after ...
27...Rxe8 28.Qxd2 Rcd8
...the trapper is trapped.
Summer Tuesday Night Marathon (4) 2011 /Analyzes by IM John Donaldsan/
The text allows the second player to quickly obtain a strong position.
13.Qxd5
21.Rdg1 Qe4 22.h3 Qxd4 23.hxg4 Ne4 24.Re1
"FM Robin Cunningham sends in detailed annotations to his tough last round battle with Uyanga Byambaa from the last round of the Summer Tuesday Night Marathon./Mechanics' Institute Chess Club Newsletter # 547/ http://chessclub.org/news.php?n=547
Byambaa (2060) - Cunningham (2280)
Summer Marathon (8),2011
This was a tense game. For both players, a win would tie for first, a draw would likely tie for second, and a loss would get nothing. The main lesson of this game is: when facing a difficult position, keep looking for activity and concrete ideas. Both players rescued bad positions with resourceful play.
1.e4 Nf6 2.Nc3 e5 3.Nf3 Nc6 4.d4 Bb4 5.d5
My opponent usually plays the 4-pawns attack against the Alekhine. It seemed very likely that she was following my game against Margulis earlier in the tournament, when I played the dubious 5. ... Ne4. This is a line I prepared long ago in pre-Fritz days. It is amazing what you could get away with in the opening before players had computers to tell them what to do!
5...Nb8
White has an edge in this line, but there will be plenty of play for both sides and we have avoided the kind of open game that Uyanga seems to play best.
6.Bd3 Bxc3+ 7.bxc3 d6 8.h3 c6 9.c4 0-0 10.0-0 cxd5
10...Na6 11.dxc6 Qc7 12.cxb7 Bxb7 13.Nd2 Nc5 unclear
11.cxd5 Nbd7 12.Ba3 Qc7 13.Nd2 Nc5 14.Re1 Bd7 15.Rb1 Rab8 16.Nb3 b5
16. ... b6 is more solid, but feels passive. I had dreams of getting the pawn to b4 and expanding on the queenside, but really this idea is unlikely to work because of White's space advantage.
17.Qd2!?
I had assumed this wouldn't be good because of an exchange of my c5-knight followed by Nh5-f4. But the problem is that Nxd3 prepares the undermining d4 for white and Nxb3 just leaves my queenside too weak. Finally, I didn't want to play 17. ... Nh5 without doing a knight-capture first, because I need the knight ready to come to d6 in the event that White takes on c5. For the first time, I realized that White has a nice edge.
17...Rfc8 18.Re3?!
Missing the point. White should take over the dark squares on the queenside with 19. Bb4
18...Ne8
18...Na4 19.Bb4 Nb6 20.Ba5
19.Rg3
Continuing a bad plan. Now I think Black is better.
19...Nxd3 20.cxd3 Qc2 21.Rb2 Qxd2 22.Rxd2 b4 23.Bb2 a5?
Throwing away a nice advantage. The most common mistake I see at the Mechanics' Marathons is mismanagement of the clock and I have been guilty of it in this game. Now is the time for Nf6-h5-f4 when I like Black's position. The problem with 23. ... a5 is that I leave my queenside weak and I lose my active Bishop. [23...Nf6!? 24.Re3 Nh5 25.Na5 Rb6 26.d4 f6�]
24.Nxa5 Ra8 25.Nc4 Rxa2 26.Nb6 Rd8 27.Nxd7 Rxd7 28.d4 Nf6 29.dxe5 dxe5?!
29...Nxe4! Unfortunately, the time control was at move 30 and I only had 3 minutes to analyze 30. Rg7+, which leads to a good position for Black. 30.Rxg7+ (30.Rc2� Rd8 31.Rb3 Nc5 32.Rxb4 Nd3 33.Rb3 Rxb2 34.Rbxb2 Nxb2 35.Rxb2 dxe5=) 30...Kxg7 31.e6+ Rxb2 32.exd7 Rxd2 33.d8Q b3.
30.Rc2 Kf8?
Black pays the price for mismanaging the clock.
31.Rc8+ Ke7 32.Bxe5 Nxe4 33.Re3 f5 34.f3 Rxd5
34...Nf6 is much safer. I was not thinking clearly here and was afraid of 35. d6. 34...Nf6 35.d6+ Kf7 36.Rc7 Ra7 37.Bxf6 Kxf6 I think I missed that c3 was not available for a rook here.
35.Bf4 Rd1+ 36.Kh2 Rdd2?!
36...Rf1 37.Bg3?? (37.Rc4 Kf7 38.Rxb4 Rff2 39.fxe4 Rxg2+ 40.Kh1 Rgf2 Same idea as my line but a better version for Black.)37...Raa1-+
37.fxe4 Rxg2+ 38.Kh1 Rgf2?
38...Rge2 39.Rc7+ Kd8 40.Rxe2 Rxe2 41.exf5 b3 Black may hold here, using the b-pawn and the bad position of the White king. 42.Rc1 b2 43.Rd1+ Ke8 44.Kg1 Kf7 45.Rb1 Rc2 46.Bg5 g6 47.f6 h6 48.Be3 (48.Bxh6 Kxf6 I don't see how White can win, but anything is possible.) 48...g5 49.Rf1� Black may hold here as long as he doesn't run out or Rook moves along the 2nd rank. It makes me a little nervous that I only have 2 of those currently!
39.exf5+ Kf7 40.Rc7+ Kf6 41.Be5+ Kxf5 42.Rf7+ Kg6 43.Rxg7+ Kh6+- 44.Rg1 Ra3
Most players give up in lost positions. You must keep looking for concrete ideas and sources of counterplay. My idea here is that I want to get the pawn to a2 when I think I can draw even after the last rooks come off as long as my pawn stays on h7 (see below). The right move here 45. Rg3 is a little hard to see since the rook just went to g1.
45.Bg7+?!
Pushing my king where it wants to go, Uyanga thought she had a mate here. Rgg3 should win comfortably. The key is to stop the b-pawn before it can be a source of counter play.
45...Kh5 46.Re5+?
It is possible that White cannot win after this careless move. White missed that 47. Bf6 was prevented by the rook on f2. 46.Rxa3 bxa3 47.Rg2 Rxg2 48.Kxg2. Can Black hold here? There is a stalemate trick that may prevent progress. 48...a2 49.Kg3 Kg6 50.Bc3 Kf5 51.h4 Kg6 52.Kg4 Kh6 How does White make progress? 53.h5 a1Q!=; 46.Rgg3 Rfa2.
46...Kh4 47.Re4+ Kxh3
I thought this position was a draw but I was very nervous. I hate positions where my opponent has 2 rooks and my King has no legal moves. At least I am threatening mate in one!
48.Be5 Raf3 49.Rxb4 Rf1 50.Rb2 Rxg1+ 51.Kxg1 Kg4
White offered a draw in this position. Although the position is a theoretical draw, White should play on since she has nothing to lose and can only win or draw. White's game is much easier to play also, which is useful in a sudden-death time control. This game had lots of errors, as money-round games often do. But I thought both players played well when they had to."
In Litowsky TNM 2011, I didn't do excellent, 5 out of 9 losing 20 rating points 2124 to 2104, but still played some tough games. Here is one them against FM Andy Lee. It was an another unforgettable and unfortunate draw from completely winning endgame :("Uyanga Byambaa had NM Andy Lee on the ropes for much of the evening but poor endgame play enabled him to escape."/Mechanics' Institute Chess Club Newsletter # 547/ http://chessclub.org/news.php?n=547
Lee,Andy (2267) - Byambaa,Uyanga (2073) [B01]
Mechanics' Litowsky TNM; 30/90,
SD/30 San Francisco (3.1), 16.08.2011
[Donaldson]
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| Position after 45. Kf4 |
52.Bxf7 Nd4 53.Bxg6 Nf3 54.Bxe4 Nxh4 55.Bd3 Nf3? [55...Ng2 ]
56.Be2 Nxg5 57.Bxh5 c4 58.Kc2 Kd4 59.Bg6 Ne4 60.Bxe4 Kxe4 1/2-1/2
In spring TNM 2012, 5 out of 8 losing last two games against FM Frank Thornally and IM Ellioet Winslow.
"Spring Tuesday Night Marathon leader National Master Romy Fuentes was held to a draw last night by veteran Expert Peter Grey and now has company at the top. Fuentes is joined at 5-1 by Fide Masters Andy Lee and Frank Thornally and Expert Uyanga Byambaa. Two rounds remain for the 71 combatants." /Mechanics’ Institute Chess Club Newsletter #580
April 18, 2012 http://chessclub.org/news.php?n=580
April 25, 2012/ http://chessclub.org/news.php?n=581
Now, when i look back to my games, I wasn't that experienced and it seemed somewhat so raw. Having so little knowledge of the game and no studying, all i do was just attack with no fear. it is possible to beat B or A players even experts with wild attacks but not always works against masters or decent players who understand chess better... Eventually, I required to play the game more solid and more positional in order to improve the quality of my games. Fall TNM is the one of my very special tournaments because i didn't lost a single game and I drew five games. it is so rare even I draw a game. In my tournament records, I can hardly find very few games that i drew because I always wanted to win instead of draw and it turns out to be a lost. GM Jesse Kraii mentioned to me once "You should learn how to draw. it's important." Finally, I realize that the only half point can make the all difference. Start learning to draw is maybe a sign to improving one more step...
Fall TNM 2012
After skipping two marathons in a row, I was excited to come back to TNM, which has been always perfect tournament for me. Every Tuesday night only one game a week, slow time control and John Donaldson't free lecture before the game and so on. I loved it.
Round 1, October 16:
Sung,Kevin (1586) - Byambaa,Uyanga (2093)
Mechanics' Fall TNM; 30/90, SD/30
San Francisco (1.8), 16.10.2012
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 0-0 6.Nf3 e5 7.d5 Nbd7 8.Bg5 h6 9.Bh4 a5 10.0-0 Nc5 11.Nd2 Bd7 12.a3 a4 13.f3 b6 14.b4 axb3 15.Nxb3 Ba4? To be honest, I didn't see that the knight can take my bishop. Very shameful. Maybe because this was the first game after I haven't played chess for about two months and my eyes hasn't open up enough to see the whole chessboard yet I guess. 16.Nxa4 Nxa4 17.Bd3 Qd7 18.Nd2 Nh5 19.Bf2 Nf4 20.Qb3 Ra5 21.Qc2 Rfa8 22.Rfb1 Bf6 23.Rb3 Bg5 24.Nb1 Nc5 25.Bxc5 dxc5 26.Nc3 Kg7 27.Bf1 Nh5 28.Nb5 Nf6 29.Qb2 Ne8 30.Be2 Nd6 31.Rf1 Nxb5 32.cxb5 Bf6 33.Bc4 Qd6 34.Qc1 Bg5 35.Qb2 Ra4 36.Be2 f6 37.Rc3 Rd4 38.Rd1 Raa4 39.Rcd3 c4 40.Rc3 Qc5 41.Kf1 h5 42.Qc2 Rxa3 43.Rxa3 Qxa3 44.Rxd4 exd4 45.Qxc4 Qa1+ 46.Kf2 Be3+ 47.Kg3 Qe1+ 48.Kh3 Kh6 49.Bf1 Kg5 50.g3 Bg1 51.f4+ Kh6 52.Qe2 This tense e, in which the advantage
has already gone back and forth, was eventually draw in another 20 moves of
mutual time pressure. 1/2-1/2It was pretty devastating start to drawing my first round with player who rated 500 points lower than me. /usually first round supposed to be easy but I was wrong./
Round 2, October 23:
Byambaa,Uyanga (2093) - Solomonik,Edgar (1651)
Mechanics' Fall TNM; 30/90,
SD/30 San Francisco (2.12), 23.10.2012
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| Position after 18, g6 |
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.Bb3 Be7 8.g4 Qa5 9.f3 0-0 10.Be3 Nc6 11.Qd2 Ne5 12.0-0-0 b5 13.Kb1 Bb7 14.Nd5 Qd8 15.Nxe7+ Qxe7 16.g5 Nfd7 17.h4 a5 I could take the b5 pawn and i saw that white leaves better at the end. However, i liked the attacking move better and decided to play g6. 18.g6 This is the critical moment of the game. I was pretty proud of myself to find that move. There were 3 different ways to capture the b6 pawn; however, none them is good and it helped me to open up the position for increasing my attacking chances. Nxf3? Sac wasn't good. He was trying to mix up the position but it wasn't accurate and led him to lose the game. (18... fg hangs the e6 pawn. 18...hg or Nxg6 19. h5 leads to open the h file) 19.Nxf3 a4 20.gxf7+ Kh8 21.Bxe6 Qxe6 22.Ng5 Qc4 23.Qxd6 Nf6 24.Bd4 Nxe4 [24...Bxe4 25.Qxf6! Bxc2+ (25...gxf6 26.Bxf6# ) 26.Ka1 Qxd4 27.Qxd4+- ]
25.Qh6 unstoppable mate. 1-0
Round 3, October 30:
Matchen,George (1584) - Byambaa,Uyanga (2093) [B22]
Mechanics' Fall TNM;
30/90, SD/30 San Francisco (3.7), 30.10.2012
[Donaldson]
 |
| Position after 73...Nxf5 |
1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4 5.Qxd4 e6 6.Nf3 Nc6 7.Qe4 d6 8.Nbd2 dxe5 9.Nxe5 Be7 10.Bb5 Qc7 11.Ndf3 0-0 12.0-0 Bf6 13.Bd3 g6 14.Ng4 Bg7 15.Nh6+ Kh8 16.Qh4 f5 17.Ng5 Bf6 18.Re1 a6 19.Rb1 b5 20.Bd2 Ra7 21.c4 Ndb4 22.Bf1 Nc2 23.Rec1 N2d4 24.cxb5 axb5 25.Bc3 Qe7 26.Bxd4 Nxd4 27.Rxc8 Rxc8 28.Nhf7+ Kg8 29.Qxh7+ Kf8 30.Qh6+ Bg7 31.Qxg6 Qxf7 32.Nxf7 Rxf7 33.Qg3 Bf6 34.Qd6+ Kg8 35.Bxb5 Nxb5 36.Qxe6 Rc5 37.b4 Re5 38.Qc8+ Kg7 39.a4 Rc7 40.Qb8 Rce7 41.g3 Nc3 42.Rf1 Nxa4 43.Ra1 Nc3 44.Ra7 Rxa7 45.Qxa7+ Re7 46.Qc5 f4 47.Qh5 Rb7 48.Qg4+ Kf7 49.Qh5+ Kg7 50.gxf4 Rxb4 51.f5 Nd5 52.Qg6+ Kf8 53.Qh6+ Ke7 54.Qc1 Kd6 55.Qe1 Be5 56.Qd2 Rh4 57.Qg5 Rxh2 58.Qd8+ Kc5 59.Qc8+ Kd4 60.Qd7 Ke4?? 61.Qe6 [61.f3+ Kd4 62.f6! ]
61...Rh5 62.f3+ Kd4 63.Kf2 Rh2+ 64.Kg1 Re2 65.Qa6 Ke3 66.Qc6 Rd2 67.Qc5+ Kxf3 68.Qa3+ Ne3 69.Qb3 Rg2+ 70.Kh1 Rh2+ 71.Kg1 Rb2 Objectively there is nothing wrong with this move but practically it throws away the win as Black did not know how to mate with bishop and knight. The game was drawn 50 moves after the f-pawn was captured.
72.Qxb2 Bxb2 73.Kh2 1/2-1/2
Another frustrating draw with lower rated player. The first time I've ever left with bishop and knight. Unfortunately, I had no idea how to do the mate either. Of course, I couldn't figure it out over the board when there was 2 mins left on the clock. At least, I wish I'd have studied it before. I never thought the knight and bishop mate is gonna be a practical, so studying it would be a just waste of time. However, it wasn't as complicated as I thought when I learned the technique of it later on.
Even though the game ended a draw, I wasn't feel so bad about it since I made a big mistake to exchange off my queen for the two minor pieces with no counterplay and I fought back hard enough to manage to reached the winning position with excellent piece play.
Round 4, Novemver 6:
Byambaa,Uyanga (2093) - Chernobilskiy,Mikhail (1871)
Mechanics' Fall TNM;
30/90, SD/30 San Francisco (4.5), 06.11.2012
 |
| Position after 21...Rdc8 |
Round 5, November 13:
Morton,Adam (1894) - Byambaa,Uyanga (2093)
Mechanics' Fall TNM; 30/90, SD/30
San Francisco (5.5), 13.11.2012
[Donaldson]
 |
| Position after 30....Nxd5 |
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 0-0 6.Nge2 c5 7.d5 e6 8.Ng3 exd5 9.cxd5 Nbd7 10.Be2 a6 11.a4 Ne5 [11...h5!? ]
12.0-0 Qa5 [12...h5!? ]
13.f4 Ned7 14.Bd2 Qb6 15.Bc4 [15.a5 Qc7 ]
15...h5 16.h3 Re8 17.Re1 h4 18.Nh1 Nh5 19.Ra3 Bd4+ 20.Kh2 Ndf6 21.Rb3 Qd8 22.Qf3 b6 23.Bd3 Nh7 24.Ne2 Bg7 25.Nf2 Ra7 26.Bc3 N7f6 27.Ra3 Rae7 28.Bd2 Bb7 29.Ra2 Qa8 30.Nc3 [30.f5 ] 30...Nxd5 31.f5 Nb4 32.Bc4 d5 33.Nxd5 Bxd5 34.exd5 Rxe1 35.Bxe1 Rxe1 [35...Qb8+ ] 0-1
Round 6, November 20:
Byambaa,Uyanga (2093) - LaCounte,Brendan (1924)
Mechanics' Fall TNM; 30/90,
SD/30 San Francisco (6.3), 20.11.2012
 |
| Position after 32. b6 |
1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 Be7 8.Qd2 c4 9.Be2 b5 10.a3 Qa5 11.0-0 Nb6 12.b4 Qa6 13.Rfb1 Na4 14.Nxa4 Qxa4 15.c3 Bd7 16.Bd1 Qa6 17.a4 Qb7 18.axb5 Qxb5 19.f5 exf5 20.Bg5 h6 21.Bxe7 Kxe7 22.Nh4 g5 23.Nf3 Rhg8 24.h4 f4 25.Ba4 Qb7 26.hxg5 hxg5 27.Rf1 Be6 28.b5 Na5 29.Qb2 Qb6 30.Bc2 Nb7? due to the time pressure he made a big mistake trying to hang on the pawn. 31.Ra6 Qc7 32.b6 Qc8 33.Rxa7 Rb8 34.Ba4 Kf8 35.Qb4+ Kg7 36.Nxg5 Kh8 37.Qe7 Rxg5 38.Qxg5 Bh3 39.Rxf4 Bxg2 40.Rh4# 1-0
"Tournament leaders IM Elliott Winslow and Expert Todd Rumph drew in round 6, enabling NM Romy Fuentes and Expert Uyanga Byambaa to join them in the lead with 5-1 scores in the Fall Tuesday Night Marathon." /Mechanics’ Institute Chess Club Newsletter #608 November 21, 2012/ chessclub.org/news.php?n=608
Round 7, November 27:
Byambaa,Uyanga (2093) - Rumph,Todd (2188)
Mechanics' Fall TNM; 30/90, SD/30
San Francisco (7.2), 27.11.2012
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ Bd7 7.Bxd7? without knowing the book move, I already lost the opening advantage. Black has a very comfortable game now. There was only one correct move was (7.Qe2) Qxd7 8.d3 Nxd5 9.Bd2 Nc6 10.Nc3 h6 11.Nf3 0-0-0 12.Nxd5 Qxd5 13.0-0 g5 14.b4 g4 15.Nh4 Qe6 16.f4 Be7 17.f5 Qf6 18.g3 e4 19.Qe1 exd3 20.Bc3 d2 21.Bxd2 Qd4+ 22.Be3 Qd5 23.b5 Ne5 24.f6 Bc5 25.Bxc5 Qxc5+ 26.Qf2 Qxf2+ 27.Rxf2 Rd5 28.a4 Rhd8 29.Kf1 Nc4 30.Re1 Rd1 31.Nf5 Nd2+ 32.Ke2 Rxe1+ 33.Kxe1 Nf3+ 34.Ke2 Re8+ 35.Kd3 h5 36.Ne7+ Kd7 37.Re2 Ng5 38.c4 Nh7 39.Rf2 Nxf6 40.Rxf6 Kxe7 1/2-1/2
It was a hard fighting draw to try to save my inferior position that I got out of the opening.
Round 8, December 4:
Elliott Winslow (2293)–Uyanga Byambaa (2093) Mechanics’ Fall TNM (8) 2012 /Analyzes by Donaldson
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 0–0 6.Nf3 c5 7.d5 e6 8.Be2 exd5 9.e5 dxe5 10.fxe5 Ng4
10...Ne4 is a good alternative.11.Bg5 f6 12.exf6 Bxf6 13.Qxd5+ Qxd5 14.Nxd5 Bxg5 14...Nc6, as played in J.Whitehead–Biyiasas, Cal Chess Masters 1981, is also playable. That game was drawn after 15.Nxf6 Nxf6 16.0-0 Ne4 17.Bh6 Re8.
15.Nxg5 Nc6 16.Nc7 Rb8 17.Nge6 Bxe6 18.Nxe6 Rfe8?!
18...Rbe8 is more accurate meeting 19.Bxg4 (19.Nxf8 Nd4) 19...Nd4 20.0–0–0 Nxe6 21.Rd7 with 21...Rf7 19.Bxg4 Nd4 20.0–0–0 Nxe6 21.Rd7 Nd4 22.Rf1 h5
22...Re4 23.Bd1 Nf5 24.b3 Rd4 (24...Re7 was better) 25.Rc7 b5 26.cxb5 Rxb5 27.Re1 Rd8 28.g4 Nd4 29.Ree7 h6 1–0 Winslow–Donaldson, Rohnert Park 1986.23.Bd1 Rf8 24.Re1?! 24.Rxf8+ Rxf8 25.Rxb7 Rf2 26.Rxa7 Rxg2 27.a4 Rxh2 28.a5 was much more of a challenge for Black to meet.24...Rf2 25.Ree7 Rxg2 26.Rg7+ Kh8 27.Rh7+ Kg8 28.Rdg7+ Kf8 29.Bxh5 Re8 30.Rf7+ ½–½
National Master Romy Fuentes and Expert Todd Rumph are tied for first in the Fall Tuesday Night Marathon with one round remaining. Half a point behind their 6.5-1.5 scores are International Master Elliott Winslow and Experts Uyanga Byambaa and James Jones. FM Andy Lee, who was unable to play the eighth round, has 5.5 points, but could determine who wins the event. Likely last-round pairings areFuentes–Byambaa, Rumph–Jones and Lee–Winslow./Mechanics’ Institute Chess Club Newsletter #610December 5, 2012/ http://chessclub.org/news.php?n=610
Round 9, December 11:
Fuentes,Romulo (2217) - Byambaa,Uyanga (2093)
Mechanics' Fall TNM; 30/90,
SD/30 San Francisco (9.1), 11.12.2012
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Bxf6 gxf6 9.Na3 b5 10.Nd5 f5 11.Nxb5 axb5 12.Bxb5 Bd7 13.exf5 Bg7 14.0-0 0-0 15.Qg4 Kh8 16.Qe4 f6 17.a4 Rb8 18.c3 Ne7 19.Nxe7 Qxe7 20.c4 d5 21.Qxd5 Bxf5 22.c5 Rfd8 23.Qf3 Be6 24.c6 f5 25.Rac1 Rbc8 26.Rfd1 Bh6 27.Rxd8+ Rxd8 28.Rd1 e4 29.Rxd8+ Qxd8 30.Qe2 Qd2 31.Qxd2 Bxd2 1/2-1/2
Fall Tuesday Night Marathon Standings
October 16th-December 11th
October 16th-December 11th
| # | Name | Rtng | Post | Rd 1 | Rd 2 | Rd 3 | Rd 4 | Rd 5 | Rd 6 | Rd 7 | Rd 8 | Rd 9 | Tot |
| 1 | Todd Rumph | 2188 | 2207 | W35 | W9 | W23 | H--- | W3 | D2 | D4 | W18 | W7 | 7.5 |
| 2 | Elliott Winslow | 2293 | 2299 | W29 | W14 | W26 | W46 | H--- | D1 | D3 | D4 | W12 | 7.0 |
| 3 | Romulo Fuentes | 2217 | 2226 | W57 | W18 | W27 | W5 | L1 | W7 | D2 | W17 | D4 | 7.0 |
| 4 | Uyanga Byambaa | 2093 | 2102 | D58 | W10 | D37 | W19 | W15 | W8 | D1 | D2 | D3 | 6.5 |
| 5 | Igor Traub | 2118 | 2116 | W36 | W15 | W24 | L3 | L8 | W16 | L11 | W19 | W14 | 6.0 |
| 6 | Steven Gaffagan | 2070 | 2049 | D37 | D63 | L22 | W55 | W62 | L24 | W33 | W15 | W18 | 6.0 |
| 7 | James Jones | 2042 | 2041 | D38 | W58 | W39 | D17 | W9 | L3 | W27 | W10 | L1 | 6.0 |
| 8 | Brendan LaCounte | 1924 | 1942 | H--- | H--- | W57 | W68 | W5 | L4 | L10 | W24 | W16 | 6.0 |
| 9 | Nils Delmonico | 1899 | 1903 | W61 | L1 | W34 | W37 | L7 | L10 | W48 | W29 | W17 | 6.0 |
| 10 | Edgar Solomonik | 1651 | 1761 | H--- | L4 | W31 | D38 | W19 | W9 | W8 | L7 | W26 | 6.0 |
| 11 | Andy Lee | 2291 | 2293 | W33 | H--- | W56 | H--- | D27 | W17 | W5 | U--- | U--- | 5.5 |
| 12 | Pranav Nagarajan | 1997 | 2010 | W44 | X19 | L46 | H--- | U--- | W21 | W28 | W26 | L2 | 5.5 |
| 13 | Thomas Maser | 1990 | 1984 | H--- | L37 | H--- | W44 | H--- | W23 | L26 | W36 | W53 | 5.5 |
| 14 | Craig Andries | 1953 | 1960 | W48 | L2 | W30 | D22 | W56 | L25 | W45 | W27 | L5 | 5.5 |
| 15 | Adam Morton | 1894 | 1904 | W64 | L5 | W63 | W26 | L4 | W38 | H--- | L6 | W30 | 5.5 |
| 16 | Erling Steigum | 1988 | 1959 | W40 | L23 | L29 | W49 | W33 | L5 | W35 | W22 | L8 | 5.0 |
| 17 | Steven Krasnov | 1959 | 1970 | W31 | W67 | H--- | D7 | W46 | L11 | W22 | L3 | L9 | 5.0 |
| 18 | Victor Todortsev | 1940 | 1939 | W49 | L3 | W33 | W43 | L25 | W37 | W24 | L1 | L6 | 5.0 |
| 19 | Mikhail Chernobilskiy | 1871 | 1863 | W52 | F12 | X59 | L4 | L10 | W43 | W37 | L5 | W34 | 5.0 |
| 20 | Lazar Shnaiderman | 1851 | 1850 | H--- | H--- | H--- | U--- | W51 | D35 | W38 | U--- | W69 | 5.0 |
| 21 | Filho Murilo | 1832 | 1821 | H--- | H--- | W40 | L27 | D36 | L12 | W43 | D31 | W37 | 5.0 |
| 22 | Cailen Melville | 1806 | 1828 | W66 | L27 | W6 | D14 | W28 | H--- | L17 | L16 | W35 | 5.0 |
| 23 | Carl Woebcke | 1786 | 1792 | W69 | W16 | L1 | U--- | D43 | L13 | W61 | D34 | W38 | 5.0 |
| 24 | Peter Sherwood | 1780 | 1800 | W42 | W32 | L5 | H--- | D26 | W6 | L18 | L8 | W40 | 5.0 |
| 25 | Frank Thornally | 2212 | 2218 | H--- | H--- | H--- | W29 | W18 | W14 | U--- | U--- | U--- | 4.5 |
| 26 | Farid Watson | 2095 | 2066 | W43 | W47 | L2 | L15 | D24 | W56 | W13 | L12 | L10 | 4.5 |
| 27 | Peter Grey | 2000 | 2007 | W59 | W22 | L3 | W21 | D11 | W46 | L7 | L14 | U--- | 4.5 |
| 28 | Sos Hakobyan | 1880 | 1873 | H--- | H--- | H--- | W35 | L22 | W36 | L12 | W45 | U--- | 4.5 |
| 29 | Scott Poling | 1747 | 1745 | L2 | W48 | W16 | L25 | L37 | W39 | W50 | L9 | D31 | 4.5 |
| 30 | Julian Standen | 1725 | 1703 | H--- | D60 | L14 | W61 | L38 | W49 | H--- | W32 | L15 | 4.5 |
| 31 | David Rakonitz | 1479 | 1494 | L17 | D42 | L10 | H--- | D48 | W65 | X56 | D21 | D29 | 4.5 |
| 32 | Warren Jude Luhrs | unr. | 1565 | H--- | L24 | B--- | W69 | U--- | U--- | W69 | L30 | W43 | 4.5 |
| 33 | Richard Newey | 1704 | 1681 | L11 | W50 | L18 | W41 | L16 | W51 | L6 | L40 | W52 | 4.0 |
| 34 | Jaysen Shi | 1658 | 1663 | L46 | W64 | L9 | W50 | W40 | U--- | H--- | D23 | L19 | 4.0 |
| 35 | Parick Donnelly | 1647 | 1653 | L1 | W61 | D54 | L28 | W60 | D20 | L16 | W41 | L22 | 4.0 |
| 36 | Richard Hack | 1639 | 1645 | L5 | W52 | H--- | H--- | D21 | L28 | W54 | L13 | D41 | 4.0 |
| 37 | George Matchen | 1584 | 1648 | D6 | W13 | D4 | L9 | W29 | L18 | L19 | W48 | L21 | 4.0 |
| 38 | David Flores | 1539 | 1594 | D7 | L55 | W70 | D10 | W30 | L15 | L20 | W50 | L23 | 4.0 |
| 39 | Henry Mar | 1509 | 1513 | H--- | W70 | L7 | L47 | D58 | L29 | L52 | W64 | W50 | 4.0 |
| 40 | Tom Allen | 1504 | 1512 | L16 | W69 | L21 | H--- | L34 | H--- | W51 | W33 | L24 | 4.0 |
| 41 | Callaghan McCarty-Snead | 826 | 1081 | L67 | W44 | L45 | L33 | D61 | W60 | W62 | L35 | D36 | 4.0 |
| 42 | Jerry Simpkins | unr. | 1357 | L24 | D31 | L43 | L64 | L65 | W69 | W60 | D44 | W49 | 4.0 |
| 43 | Willie Campers | 1607 | 1594 | L26 | W65 | W42 | L18 | D23 | L19 | L21 | W52 | L32 | 3.5 |
| 44 | Tony Cole | 1523 | 1506 | L12 | L41 | W64 | L13 | H--- | H--- | U--- | D42 | W59 | 3.5 |
| 45 | Charles James | 1497 | 1491 | H--- | L56 | W41 | X67 | H--- | H--- | L14 | L28 | U--- | 3.5 |
| 46 | Russell Wong | 2212 | 2191 | W34 | W54 | W12 | L2 | L17 | L27 | U--- | U--- | U--- | 3.0 |
| 47 | Renjish Abraham | 1877 | 1875 | W65 | L26 | H--- | W39 | H--- | U--- | U--- | U--- | U--- | 3.0 |
| 48 | Nicholas Brown | 1457 | 1472 | L14 | L29 | W65 | H--- | D31 | W62 | L9 | L37 | U--- | 3.0 |
| 49 | Samuel Agdamag | 1413 | 1397 | L18 | L57 | W52 | L16 | W64 | L30 | L53 | W69 | L42 | 3.0 |
| 50 | Chinguun Bayaraa | 1329 | 1337 | L54 | L33 | W66 | L34 | W52 | W59 | L29 | L38 | L39 | 3.0 |
| 51 | Robert Frank | 1263 | 1264 | H--- | H--- | H--- | D62 | L20 | L33 | L40 | L59 | W66 | 3.0 |
| 52 | Benjamin Godfrey | 1072 | 1131 | L19 | L36 | L49 | W66 | L50 | W64 | W39 | L43 | L33 | 3.0 |
| 53 | Bryon Doyle | 1958 | 1951 | H--- | H--- | H--- | U--- | U--- | F61 | W49 | U--- | L13 | 2.5 |
| 54 | Michael Anderson | 1923 | 1901 | W50 | L46 | D35 | U--- | H--- | H--- | L36 | U--- | U--- | 2.5 |
| 55 | Barry Curto | 1900 | 1897 | H--- | W38 | H--- | L6 | U--- | H--- | U--- | U--- | U--- | 2.5 |
| 56 | Will Delaney | 1800 | 1794 | H--- | W45 | L11 | W60 | L14 | L26 | F31 | U--- | U--- | 2.5 |
| 57 | Ben Rood | 1700 | 1698 | L3 | W49 | L8 | H--- | H--- | H--- | U--- | U--- | U--- | 2.5 |
| 58 | Kevin Sung | 1586 | 1593 | D4 | L7 | H--- | H--- | D39 | U--- | H--- | U--- | U--- | 2.5 |
| 59 | David Olson | 1529 | 1491 | L27 | W66 | F19 | U--- | U--- | L50 | D65 | W51 | L44 | 2.5 |
| 60 | Michael Hilliard | 1460 | 1405 | H--- | D30 | D67 | L56 | L35 | L41 | L42 | L66 | W64 | 2.5 |
| 61 | Clarence Harris | 1323 | 1305 | L9 | L35 | W69 | L30 | D41 | X53 | L23 | U--- | U--- | 2.5 |
| 62 | Craig Yamamoto | 1720 | 1669 | H--- | H--- | H--- | D51 | L6 | L48 | L41 | U--- | U--- | 2.0 |
| 63 | William Milliken | 1612 | 1619 | H--- | D6 | L15 | H--- | H--- | U--- | U--- | U--- | U--- | 2.0 |
| 64 | Fernando Lazaro | 1266 | 1232 | L15 | L34 | L44 | W42 | L49 | L52 | W66 | L39 | L60 | 2.0 |
| 65 | Samprabhu Rubandhas | 1266 | 1276 | L47 | L43 | L48 | H--- | W42 | L31 | D59 | U--- | U--- | 2.0 |
| 66 | Jackie Cowgill | 939 | 922 | L22 | L59 | L50 | L52 | L69 | B--- | L64 | W60 | L51 | 2.0 |
| 67 | Michael Dougal | 1803 | 1790 | W41 | L17 | D60 | F45 | U--- | U--- | U--- | U--- | U--- | 1.5 |
| 68 | Joe P. Davis | 1670 | 1666 | H--- | H--- | H--- | L8 | U--- | U--- | U--- | U--- | U--- | 1.5 |
| 69 | Renate Otterbach | 761 | 785 | L23 | L40 | L61 | L32 | W66 | L42 | L32 | L49 | L20 | 1.0 |
| 70 | Andre Persidsky | 1862 | 1830 | H--- | L39 | L38 | U--- | U--- | U--- | U--- | U--- | U--- | 0.5 |
