Chess Room Newsletter #872 | Mechanics' Institute

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Chess Room Newsletter #872

Gens Una Sumus!

Newsletter #872

June 7, 2019

By Abel Talamantez


Underdogs continue to fight back in 2nd Round of TNM

Round 2 of the Summer TNM played to a jam-packed house, with 56 boards in play and hungry challengers looking to make a move up the leaderboard.

In the championship section, Isaiah Kim played a solid game to defeat one of the pre-tournament favorites FM Ezra Chambers on board 1. On board 2, WFM Mugi Tsegmed put serious pressure on NM Tenzing Shaw in a tricky endgame, but Shaw calculated well and held the draw. Also showcasing solid endgame play was NM Rui Yang Yan, who converted a rook and pawn endgame advantage into victory. Rui is the nations top 11 year old girl in the country and #5 11 year old overall. We will enjoy following her progress.

WFM Mugi Tsegmed (left) and NM Tenzing Shaw battle early on in their game on board 2 while Isaiah Kim (white) and FM Ezra Chambers face off on board 1

A full house is the norm now at our TNM!

Also in action is this week was the tournaments top seed FM Kyron Griffith. After taking a first round bye, we got the win this week and is in pursuit of the leaders.

The 1600-1999 section and the under 1600 section are both well balanced and competitive, and will surely take a few more rounds to clear the field. About 130 players are already participating in total with about an even distribution of players across the 3 sections. We have reached capacity for this tournament and have closed registration. It is exciting to see such a great turnout on Tuesday nights!

For a full list of the standings, please click here.

To watch our stream with live commentary by FM Paul Whitehead and others, follow our broadcast on our Twitch and YouTube channels.


GM Sam Shankland In House!

GM Sam Shankland came to deliver a special pre tournament lecture before round 2 of the TNM, and players came in big numbers to listen. It was a pleasure t have him stop by before he embarks on a full summer of events that include a camp in Ne York and GM tournament in Biel, Switzerland.

GM Sam Shankland speaks before a large crowd prior to the start of round 2 of the Summer TNM

GM Shankland takes questions from the crowd

Mechanics' Institute Chess Club Welcomes its New Team Member, Dr. Judit Sztaray!

Dr. Judit Sztaray joins our team on Monday June 10th and will be our club's General Manager of Youth Outreach and Events. We are looking to develop and grow our enrichment programming in the city and nearby communities and expand our events both regular and scholastic. We hope to organize events outside the Mechanics' Institute to engage the community, raise awareness regarding the Mechanics' Institute, and provide the highest quality chess events and service. She was 2017 USCF Organizer of the Year and has organized several state and national championship events. She was previously Executive Director of Bay Area Chess and we are very fortunate to have a talent of this caliber join us. We look for great things on the horizon!



Arthur Stamer Memorial Roundup

The 2019 Arthur Stamer Memorial saw quite a few on site entries from strong players, making a 33 player field for the 2 day open tournament held at the club. In the end, two young masters, FM Ezra Chambers and NM Eric Yuhan Li shared first with 5/6.

Standings can be found here.

A smooth and easy Saturday afternoon at the 2019 Arthur Stamer Memorial

Friendly rivalry as NM Rui Yang Yan and NM Eric Yuhan Li face off in round 5 of the Stamer.


Mechanics PRO Chess League Team Wins in Their Opener

The San Francisco Mechanics PRO Chess League team won the 1st match of the summer season, defeating the San Diego Surfers. GM Daniel Naroditsky won his match against FM Alex Costello, and the Mechanics fans did their part to contribute to a 20-12-match victory. Fans are able to play in the match by signing up to the Mechanics' fan page.

Recap of week 1 can be found here.

Next match is June 8 against the Chengdu Pandas at 7:15pm, be there!


Friendly Rivalries, Part 9

By FM Paul Whitehead

FM Richard Lobo was a big part of the San Francisco Bay Area Chess scene in the late 1970's and beyond. Consistently rated in the 2350 – 2450 range, he was a danger to everyone. Born in the UK, Richard kept his English accent. Knowing his considerable chess skills were formed in another country made him somehow a tough opponent... at first.

To sum up: Richard won our first two encounters, but I was 4.5 out of 5 after that. This was over the course of 7 years.

Our games seemed to follow a pattern, a pattern that worked for Richard for a while, but then didn't: Let the kid attack, then rob him of his share and go home.

But in the end I think I proved a point about chess itself: everything else being equal, it's better to be the aggressor, and more profitable to attack.

So in the end I took the money and ran.

(1) Whitehead,Paul A - Lobo,Richard [C44]
Berkeley People's Tournament, 1979

White is very aggressive, Black cool and realistic. After a lot of huffing and puffing and getting nowhere, White is slowly repulsed and vanquished. 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3 dxc3


5.Bc4 d6 6.Nxc3 Be6 7.Bxe6 fxe6 8.Qb3 Qd7 9.Qxb7 Rb8


10.Qa6 Nf6 11.0-0 Be7 12.e5 dxe5 13.Rd1 Bd6 14.Bg5 0-0


15.Bxf6 gxf6 16.Ne4 Rb6 17.Qe2 Nb4 18.Nc3 Qf7 19.Qc4 Kh8


20.Na4 Rbb8 21.Nd2 f5 22.Nc5 Nd5 23.a3 Rg8 24.Nf1 Rxb2


25.Ng3 Bxc5 26.Qxc5 Qg7 27.Rxd5 exd5 28.Qxd5 f4 29.Nf5 Qf6


30.Qd7 Rd8 31.Qxc7 Rbd2




(2) Lobo,Richard - Whitehead,Paul A [E88]
CalChess Masters Berkeley, 1981

A tremendous fighting game. Again Black presses and should keep the Queens on with 37...Qg5. White again keeps a cool head. Through the next phase Black keeps pushing but 51...Rg3 is a step in the wrong direction (51...Rh7). Black's sacrifice with 52...Nxe4 and 53...Nxd5 is worth no more than a draw at best, and Black was not up to the task. Again, Richard had fought off my aggression and won. 1.c4 g6 2.Nc3 Bg7 3.d4 d6 4.e4 Nf6 5.f3 0-0 6.Be3 e5 7.d5 c6 8.Bd3 b5 9.Nge2 bxc4


10.Bxc4 c5 11.0-0 Nfd7 12.Nc1 f5 13.Nb3 Kh8 14.Nd2 Nf6 15.Be2 f4 16.Bf2 g5 17.Nc4 Ne8 18.Be1 Rg8 19.a4 h5


20.Nb5 Bf8 21.h3 Na6 22.Bc3 Nb4 23.a5 Na6 24.Rc1 Bg7 25.Kh2 Qe7 26.b3 Rb8 27.Nba3 Nb4 28.Rb1 g4 29.hxg4 Qh4+


30.Kg1 hxg4 31.fxg4 Bf6 32.Be1 Qg5 33.Kf2 Qh4+ 34.Kg1 Qh7 35.Bf3 Bh4 36.Bxh4 Qxh4 37.Qe1 Qxe1 38.Rbxe1 Bxg4 39.Bxg4 Rxg4


40.Rf3 Rb7 41.Re2 Rg6 42.Rh3+ Kg8 43.Kf1 Na6 44.Rf2 Nb8 45.Rff3 Rbg7 46.Rf2 Nc7 47.Re2 a6 48.b4 Nd7 49.Rb3 cxb4


50.Rxb4 Nc5 51.Nd2 Rg3 52.Nf3 Nxe4 53.Rbxe4 Nxd5 54.Nc4 R7g6 55.Rd2 Nc3 56.Nxd6 Rxd6 57.Rxd6 Nxe4 58.Rxa6 Rg7 59.Nxe5 Nd2+


60.Kf2 Re7 61.Nd3 Rf7 62.Ra8+ Kg7 63.a6 Ne4+ 64.Kf3 Nd2+ 65.Ke2 f3+ 66.gxf3 Nxf3 67.a7




(3) Lobo,Richard - Whitehead,Paul A [E94]
San Francisco Bagby San Francisco, 1982

Finally I was able to beat Richard, and with Black to boot. White comes under a devastating attack. This game was inspired in part by two famous Bobby Fischer wins, against Julio Garcia Soruco in 1966, and vs. Ulf Andersson in 1970 where the ...Kh8 and ...Rg8 ideas spring from. 1.c4 e5 2.Nc3 d6 3.d4 Nd7 4.Nf3 Ngf6 5.e4 g6


6.Be2 Bg7 7.0-0 0-0 8.Qc2 c6 9.Rd1 exd4 10.Nxd4 Qe7


11.Bg5 h6 12.Bh4 Nc5 13.f3 Ne6 14.Nb3 Nf4 15.Bf1 g5


16.Bf2 Nd7 17.Qd2 Be5 18.Nd4 Nb6 19.a4 Be6 20.b3 Qf6


21.Rac1 Nc8 22.a5 a6 23.Na4 Ne7 24.b4 Kh8 25.Nxe6 Nxe6


26.Rc2 Rg8 27.Qe3 g4 28.fxg4 Rxg4 29.g3 Qg6 30.Re1 f5


31.exf5 Nxf5 32.Qd3 Nf4 33.Qd1 Rg8 34.Kh1 Nxg3+ 35.hxg3 Rxg3


36.Bxg3 Qxg3 37.Bg2 Nxg2 38.Rxe5 Qh4+ 39.Kg1 Ne3+




(4) Whitehead,Paul - Lobo,Richard [B85]
San Francisco Bagby, 1984

A bit of a rout. In a sharp variation of the Sicilian just a few mis-steps can lead to disaster, and 14...Nxb4?! (14...Qxb4) followed by 15...e5? (15...Kh8 makes sense) are the culprit moves here. It seems Black had almost no chance after 17.Bh6, and after 22.Bxg7! it was well and truly over. 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6


6.Be2 a6 7.f4 Nc6 8.Be3 Be7 9.0-0 0-0 10.Kh1 Bd7


11.Qe1 b5 12.a3 Qb8 13.Rd1 b4 14.axb4 Nxb4 15.Qg3 e5?


16.fxe5 dxe5 17.Bh6 Ne8 18.Nf5 Bxf5 19.exf5 e4 20.Qg4 Qb6


21.Qxe4 Rb8 22.Bxg7 Nxg7 23.Qxe7 Nxc2 24.f6 Ne6 25.Rd6 Qb7


26.Bh5 Ne3 27.Rf3 Nc4 28.Rd7 Qxb2 29.Bxf7+ Kh8 30.Bxe6




(5) Lobo,Richard - Whitehead,Paul A [E87]
San Francisco 1st Miz Browns San Francisco, 1985

I think this is a nice game, although White is too cooperative. Moves like 13.Bc4 and 18.g3 seem lackadaisical. The game takes another sharp turn, and maybe White can hold with 24.Bxe4. He doesn't get another chance, and Black crashes through. 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6


5.f3 0-0 6.Be3 e5 7.d5 Nh5 8.Qd2 f5 9.exf5 gxf5


10.0-0-0 a6 11.Bd3 b5 12.cxb5 Nd7 13.Bc4 axb5 14.Bxb5 Ba6


15.Bc6 Rb8 16.Nh3 Nc5 17.Nf2 Rb4 18.g3 Qb8 19.Bxc5 dxc5


20.Rde1 e4 21.Nfd1 Bd3 22.fxe4 fxe4 23.d6 Nf6 24.d7 Rd4


25.Qg5 Qb6 26.Nd5 Rc4+ 27.N1c3 Rxc3+ 28.bxc3 Qb1+ 29.Kd2 Qc2+


30.Ke3 Ng4+ 31.Qxg4 Qf2#




(6) Lobo,Richard - Whitehead,Paul A [E81]
San Francisco Bagby San Francisco, 1985

Our only draw. Black comes out of the opening with a much better minor piece but a pawn down. Over pressing with 19...b5?! is Black's stock-in-trade, and his desperado with 26...Nxf3!? might have lost brilliantly to the counter-desperado 27.Bxf7+! but Richard chose not to go there. A tough fight! 1.c4 Nf6 2.Nc3 g6 3.e4 d6 4.d4 Bg7 5.f3 0-0 6.Bg5 c5 7.d5 e6 8.Qd2 exd5 9.Nxd5 Be6


10.Ne2 Nc6 11.Nec3 Bxd5 12.Nxd5 h6 13.Nxf6+ Bxf6 14.Bxf6 Qxf6 15.0-0-0 Qg7 16.Qf4 Nd4 17.Qxd6 Rac8 18.Qf4 Rfe8 19.Bd3 b5


20.Kb1 g5 21.Qc1 bxc4 22.Bxc4 Rb8 23.Qc3 Rb6 24.Rd2 Reb8 25.h4 Qe5 26.hxg5 Nxf3 27.Qxe5 Nxe5 28.Bd5 hxg5 29.Rh5 Rg6


30.Rh3 Rgb6 31.Ra3 a6 32.Rc3 Rb5 33.Ra3 R8b6 34.Kc1 Kg7 35.Rc3 a5 36.b3 a4 37.Rdc2 axb3 38.axb3 Rf6 39.Kb2 Kf8


40.Kc1 Ke7 41.Rh3




(7) Whitehead,Paul A - Lobo,Richard [B51]
San Francisco Bagby, 1986

White's insipid opening play brings him nothing, but Black makes a significant error with 18...c4? (18...Rab8). After 20.Qb6 White is probably winning, or close to it. Black submits to deadly pin on the a-file rather than lose a pawn, but there's not much of a future in that. His attempts at counter play are easily thwarted. Not Richard's best day. 1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.0-0 Bd7 5.Re1 Nf6 6.c3 a6


7.Bf1 Bg4 8.h3 Bxf3 9.Qxf3 g6 10.Qd1 Bh6 11.d3 Bxc1 12.Qxc1 0-0


13.Nd2 b5 14.Nf3 e5 15.d4 Qe7 16.dxc5 dxc5 17.Qe3 Rfd8 18.a4 c4


19.axb5 axb5 20.Qb6 Na7 21.Ra6 Kg7 22.Rea1 Rd7 23.Qe3 Ne8 24.g3 f6


25.h4 Nd6 26.Bh3 Rc7 27.Ne1 f5 28.exf5 Nxf5


29.Bxf5 gxf5 30.Nf3 e4 31.Nd4





Tony's Teasers

Last week's problem:

  1. Rf7!!! Bxf7
  2. Bxg6!!! Bxc4
  3. Bxe8##

This week's problem:

White to move and mate in 3, Kenneth Howard 1925


Nick de Firmian's Column: Learn from the World Champions

This week: Emanuel Lasker

Emanuel Lasker was the second official World Chess Champion and the one with the longest reign. He held the title for an incredible 27 years, from 1894 when he beat Steinitz, to 1921 when he lost the title to Capablanca. Lasker was born in Berlinchen Prussia in the 19th Century and is always counted as German, but now his hometown is called Barlinek and is part of Poland after two world wars. Lasker was also a doctor of mathematics and worked with commutative algebra and polynomial rings, but it was chess that was his true calling.

It is somewhat difficult to describe Lasker's chess style, as he would use all the opportunities presented him. He was of course well ahead of most others in positional play, but he relied on tactics many times and was extremely alert to sudden opportunities for combinations and attack. He was probably the first to introduce psychological aspects of play. He could take an opponent out of his "comfort zone" and force him into a real fight. In this he was a precursor to players such as Tal, Korchnoi and Fischer who were also uncompromising champions.

(1) Pillsbury,Harry - Lasker,Emanuel
St. Petersburg, 1895

A magnificent game from Lasker that seems thoroughly modern. It could be a masterpiece from on of today's top players, yet it was played in the 19th century. 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.Bg5?!


Nowadays most common is 5. cxd5 exd5 6. g3 with a classical Tarrasch variation. 5...cxd4 6.Qxd4 Nc6 7.Qh4 Be7 8.0-0-0 Qa5 9.e3 Bd7


Lasker is concerned with devolopment and gaining an attack on the white king. Positional considerations like an isolated queen pawn are secondary. It should be noted that the computer suggests 9...h6 which is also strong. 10.Kb1 h6 11.cxd5 exd5 12.Nd4 0-0


Now 13. Bxh6 loses to Ne4, so White must part with the dark squared bishop. 13.Bxf6 Bxf6 14.Qh5 Nxd4 15.exd4 Be6 16.f4 Rac8 17.f5


17...Rxc3!? 18.fxe6 Ra3!


Uncompromisng attacking play! Lasker uses his lead in development to push the initiative at the cost of a whole rook. 19.exf7+ Rxf7 20.bxa3 Qb6+


21.Bb5 Pillsbury had no choice but to give back some material. 21. Ka1 Bxd4+ or 21. Kc1 Rc7+ would be fatal. 21...Qxb5+ 22.Ka1 Rc7?! A mistake from Lasker. 22...Qc4! 23. Qg4 Re7 and Re4 would have won quickly. 23.Rd2 Rc4 24.Rhd1?! Rc3?! 25.Qf5 Qc4 26.Kb2?


Pillsbury needed to play 26. Kb1 and his king would be safe. Now comes a stunning blow. 26...Rxa3!! After previously sacrificing one rook Lasker now gives away the second one. 27.Qe6+ Kh7 28.Kxa3


28...Qc3+ 29.Ka4 b5+! 30.Kxb5 Qc4+


31. Ka5 Bd8+ is the end. Pillsbury resigned. 0-1


(2) Lasker,Emanuel - Capablanca,Jose Raul
St. Petersburg, 1914

This is one of the most famous games ever played. At the time Capablanca was leading the tournament and needed only to draw. Lasker chooses an innocuous looking opening, but one that requires active play from Black to keep equal chances. The cleaver use of psychology and the tournament situation led Capa to play passively and allowed Lasker to build up the position. 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 Nowadays people play 5. 0-0 first. 5.d4 exd4 6.Qxd4 Qxd4 The endgame is equal, with the two bishop compensating for the doubled pawns. Yet Black must do something with his potential activity. 7.Nxd4


7...Bd6 8.Nc3 Ne7 9.0-0 0-0 10.f4 Re8 11.Nb3 f6 12.f5!?


Lasker takes a backward e-pawn, but the f5 pawn restricts Black's pieces. 12...b6 13.Bf4 Bb7?! 13...Bxf4 would be a slight improvement. 14.Bxd6 cxd6 15.Nd4 Rad8 16.Ne6 Rd7 17.Rad1


White has just a small edge here with the strong knight on e6. 17...Nc8?! This is passive. Capa needs to open lines for his pieces. 17...c5 would keep the disadvantage to a minimum. 18.Rf2 b5 19.Rfd2 Rde7


20.b4! Kf7 21.a3 Ba8 22.Kf2 Ra7 23.g4


Lasker slowly builds up the position. He takes space on both wings and gradually prepares for a breakthrough. 23...h6 24.Rd3 a5 25.h4 axb4 26.axb4 Rae7 27.Kf3 Rg8 28.Kf4 g6 29.Rg3 g5+


30.Kf3! Nb6 30...gxh4 31. Rh3 would mop up on the h-file. 31.hxg5 hxg5 32.Rh3 Rd7 33.Kg3 Ke8 34.Rdh1 Bb7


35.e5! White had built up a big advantage, but cashing in is always an issue. This sacrifice, clearing the e4 square is a crushing blow. If 35...c5 36. Rh8 decides. 35...dxe5 36.Ne4 Nd5 37.N6c5 Bc8 38.Nxd7 Bxd7


39.Rh7 Rf8 40.Ra1 Kd8 41.Ra8+ Bc8 42.Nc5




(3) Janowski,David - Lasker,Emanuel
Paris, 1909

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.0-0 0-0 6.d3 d6


The classical Four Knights Game 7.Bg5 Bxc3 8.bxc3 Ne7 9.Bc4 9. Bxf6 would be better. 9...Ng6 10.Nh4


10...Nf4! 11.Bxf4 exf4 12.Nf3 Bg4 13.h3 Bh5 14.Rb1 b6 15.Qd2?! Bxf3 16.gxf3 White has an open file for the doubled pawns but Black holds the edge. 16...Nh5 17.Kh2 Qf6 18.Rg1 Rae8 19.d4 Kh8


20.Rb5 Qh6 21.Rbg5 f6 22.R5g4 g6


We have a tense, unbalanced position with just a small edge for Black. 23.Bd3 Re7 24.c4?! This allows Lasker to reposition his knight to a better location. 24...Ng7! 25.c3 25. Qxf4 Qxf4 26. Rxf4 Ne6 would win the d-pawn. 25...Ne6 26.Bf1 f5 27.R4g2 Rf6! 28.Bd3?! g5!


29.Rh1 Too late Janowski sees the devilish plan. On 29. exf5 Qxh3+! 30. Kxh3 Rh6+ 31. Kg4 Rh4 is mate! 29...g4! 30.Be2 Ng5 31.fxg4 f3 32.Rg3 fxe2


Everything falls apart for White. Janowski gave up. 0-1



2019 Summer TNM Games Round 2

Annotations by GM Nick de Firmian and IM Elliott Winslow

(1) Kim,Isaiah (2139) - Chambers,Ezra (2308) [E91]
Mechanics' Summer TNM: 2000+ San Francisco (2.1), 04.06.2016
[de Firmian,Nick]

1.d4 d6 2.c4 Nc6 3.Nc3 Nf6 4.Nf3 g6 5.d5 Nb8 6.e4 Bg7 7.Be2 0-0 8.0-0 Na6 9.Be3 Bg4 10.Nd2 Bxe2 11.Qxe2 Nd7 12.Rac1 c5?! [12...c6 is more flexible] 13.f4 Nc7 14.Kh1 e6 15.Qd3 exd5 16.exd5 [16.cxd5!] 16...Rb8? [16...f5 is mandatory.] 17.Nde4 [17.f5!] 17...Qe7? [17...f5] 18.f5! Ne5 [18...Bxc3 was the computer's suggestion for a while, but in the long run it goes bad. 19.Nxc3 Ne5 20.Qe4 f6 (20...Rfe8 21.f6 Qf8 22.Qh4) 21.Bf4] 19.Qe2 gxf5 20.Rxf5 f6 21.Rcf1 Black is hopelessly weak on the light squares. 21...Ne8 22.b3 a6 23.Ng3 Rf7 24.Nce4 b5 25.Bf4 Ng6 26.Bg5 Rf8 27.Bc1 bxc4 28.bxc4 Rf7 29.R5f2 Qe5 30.Bb2 Qe7 31.Nf5 Qf8 32.Nxg7 Qxg7 33.Nxf6+ Nxf6 34.Bxf6 Qf8 35.h3 Qe8 36.Qg4 Qd7 37.Qg5 Rbf8 38.h4 Rxf6 39.Rxf6 Rxf6 40.Rxf6 Qe8 41.h5 Qe1+ 42.Kh2 Qe5+ 43.Qxe5 Nxe5 44.Rxd6 Nxc4 45.Rxa6 Kf7 46.Rc6 1-0

(2) Tsegmed,Mugi (2125) - Shaw,Tenzing (2287) [A35]
Mechanics' Summer TNM: 2000+ San Francisco (2.2), 04.06.2016
[de Firmian,Nick]

1.d4 g6 2.c4 Bg7 3.Nc3 c5 4.Nf3 cxd4 5.Nxd4 Nc6 6.e3 Nf6 7.Be2 0-0 8.0-0 d6 9.Nxc6 bxc6 10.e4 Rb8 11.Rb1 Be6 12.Be3 Qa5 13.f3 Nd7 14.Na4 Nc5 15.Nxc5 dxc5 16.b3 Qxa2 17.Bxc5 Rfd8 18.Bd3 Rd7 19.Qe2 Qa5 20.Be3 Qc3 21.Bc2 Bd4 22.Bxd4 Rxd4 23.Rbd1 Rbd8 24.Rxd4 Qxd4+ 25.Qf2 White has managed to stem the invasion, and makes it to the safety of the ending. 25...g5 26.Qxd4 Rxd4 27.Rd1 Rxd1+ 28.Bxd1 Kg7 29.Kf2 Kf6 30.Ke3 Ke5 31.g3 f6 32.c5 f5 33.f4+ gxf4+ 34.gxf4+ Kf6 35.e5+ Kf7 36.Bh5+ Kf8 37.Bf3 Bxb3 38.Bxc6 e6 39.Kd4 Ke7 40.Bf3 Kd7 41.Kc3 Ba4 42.Kb4 Bc6 43.Bd1 Bd5 44.Ba4+ Kc7 45.Ka5 Bc4 46.Kb4 Bd5 47.Bc2 Kc6 48.Ba4+ Kc7 49.Bb5 Ba2 50.Ka5 Bd5 51.Ka6 Kb8 52.c6 Kc7 53.Kxa7 Bxc6 54.Bxc6 Kxc6 55.Kb8 Kd5 56.Kc7 Ke4 57.Kd6 Kxf4 58.Kxe6 Kg5 59.Kd5 f4 60.e6 f3 61.e7 f2 62.e8Q f1Q 63.Qg8+ Kh6 64.Qe6+ Kg7 65.Qg4+ Kf6 66.Qh4+ Kg7 67.Qg5+ Kf7 68.Qh5+ Kg7 69.Qg4+ Kf6 70.Qe6+ Kg7 71.Qg4+ Kf6 72.h4 Qb5+ 1/2-1/2

(3) Wong,Russell (2200) - Boldi,Ethan (2044) [B28]
Mechanics' Summer TNM: 2000+ San Francisco (2.3), 04.06.2016
[de Firmian,Nick]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 a6 6.Be2 b5 7.0-0 c4 8.b3 Bd7 9.Ba3 Bxa3 10.Nxa3 Nge7 11.Nc2 0-0 12.Ne3 Ng6 A standard advanced French Defense, but Black has traded his "good" bishop. 13.Qd2 f6 14.bxc4 bxc4 15.exf6 Rxf6 16.Rfe1 Qf8 17.Bf1?


Any rook move is good, [but best is 17.Ng4! Rf4 18.h3 Focusing on the key square e5. 18...h5 19.Ngh2 intending Bd1-c2] 17...h6? [Routine is 17...Rxf3! 18.gxf3 and now 18...Nh4 is direct enough 19.Be2 Qxf3! Perhaps not much in the way of advantage, but White can't claim anything either.] 18.Ng4?? This is too much for any French player. 18...Rxf3!-/+ 19.gxf3 e5?? [19...Nh4 20.Be2 Qxf3 21.Ne3 (21.Bxf3 Nxf3+ 22.Kg2 Nxd2 23.f3 Rf8 24.Re3 h5-+ 25.Rd1 (25.Nf2 Ne7!) 25...Nxf3 26.Rxf3 hxg4) ] 20.Nxe5+/- Ncxe5 21.dxe5 Be6 22.Qe3 Now White is just better. 22...Qf5 23.Rab1 Nh4 24.f4 Rf8? [24...Ng6] 25.Rb6 [25.Qg3! Ng6 26.Bh3! Qxh3 27.Qxg6] 25...d4 [25...Qg4+ 26.Kh1 d4 27.Qe4 Rxf4 28.Rb8+ Kf7 29.Qb7+ Kg6 30.Bxc4] 26.Qg3 Qxf4 27.Bg2 Qd2 28.Rf1 Nxg2 29.Qxg2 Rf5 30.f4! Qe3+ 31.Qf2 Bd5 32.Qxe3 dxe3 33.Re1 Rxf4 34.Rxe3 Kf7 35.e6+ Ke7 36.Re5 Bf3 37.Rxa6 Rf8 38.Ra7+ Kd6 39.Re3 Bc6 40.Rxg7 Re8 41.Rg6 Re7 42.Rxh6 Bd5 43.Rg6 Bc6 44.h4 Be8 45.Rg8 Kc7 46.Kf2 Bc6 47.Rf8 Bd5 48.Rf7 Kd6 49.Rxe7 Kxe7 50.h5 Bc6 51.h6 Kf6 52.e7 Be8 53.Rg3 Kxe7 54.h7 Bf7 55.h8Q Ke6 56.Re3+ Kd7 57.Qf6 Kc7 58.Qxf7+ Kb6 59.Qd7 Ka5 60.Re5+ Ka6 61.Qd6+ Kb7 62.Re7+ Kc8 63.Qd7+ Kb8 64.Qb7# 1-0


(4) Trattner,Andrew (2052) - Tsodikova,Natalya (2197) [A13]
Mechanics' Summer TNM: 2000+ San Francisco (2.4), 04.06.2016
[de Firmian,Nick]

1.b3 Nf6 2.Bb2 d5 3.Nf3 e6 4.e3 Be7 5.Be2 0-0 6.0-0 c5 7.d4 Nc6 8.c4 cxd4 9.Nxd4 Bd7 10.Nc3 dxc4 11.Bxc4 a6 12.Re1 e5 13.Nde2 b5 14.Bd3 Be6 15.Ng3 Qb6 16.Qe2 g6 17.Rac1 Nd7 18.Be4 Rac8 19.Nd5 Bxd5 20.Bxd5 Nb4 21.Be4 Nxa2 22.Rxc8 Rxc8 23.Rd1 Rd8 24.Bxe5 Nxe5 25.Rxd8+ Qxd8 26.Qxa2 Qd1+ 27.Nf1 a5 28.Bc2? [28.Qxa5 is fine for White.] 28...Qe2 29.Qb1 Ng4 30.Bd3 Qxf2+ 31.Kh1 b4 32.Qc1 Ne5 33.Bb5 h5 34.Qc7 Qf6 35.Qxa5 Bd6 36.Qa1 Qe6 37.Qd4 Ng4 38.h3 Ne5 39.Nd2 Be7 40.Ne4 h4 41.Qa1 Kh7 42.Qa8 Qxb3 43.Qe8 Qb1+ 44.Kh2 Qxe4 45.Ba4 Bd6 46.Kh1 Qb1+ 0-1

(5) Yan,Rui Yang (2190) - Senthilkumar,Pranav (2030) [C65]
Mechanics' Summer TNM: 2000+ San Francisco (2.5), 04.06.2016
[de Firmian,Nick]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 Bc5 5.0-0 0-0?


6.Bxc6 dxc6 7.Nxe5 Re8 8.Nf3 Black has insufficient compensation for the pawn. 8...Bg4 9.Be3 Bf8 10.h3 Bh5 11.Nbd2 h6 12.Re1 Nd7 13.Bd4 c5 14.Bc3 b5 15.b3 Bd6 16.a4 c6 17.Qe2 Ne5 18.Qe3 Qe7 19.Nxe5 Bxe5 20.Bxe5 Qxe5 21.g4 Bg6 22.Nf3 Qc3 23.Qd2 Qf6 24.Kg2 c4 25.bxc4 bxc4 26.e5 Qe6 27.d4 Rad8 28.Rad1 Qd5 29.Qe2 c3 30.Kg3 Qa2 31.Ra1 Qxc2 32.Qxc2 Bxc2 33.Re3 Bg6 34.Rxc3 Be4 35.Rd1 Bxf3 36.Kxf3 Rxe5 37.dxe5 Rxd1 38.Rxc6 Rd5


White is still up that pawn. 39.Ke4 Rd2 40.Ke3 Rd5 41.f4 Ra5 42.Rc4 g5 43.Ke4 gxf4 44.Kxf4 Kg7 45.Kf5 Ra6 46.h4 Kg8 47.Re4 Ra5 48.g5 hxg5 49.hxg5 Kg7 50.Rd4 Ra6 51.Rd7 Kg8 52.a5 Rxa5 53.Kf6 Ra6+ 54.Rd6 Ra1 55.Rd8+ Kh7 56.Kxf7 Rf1+ 57.Ke7 Re1 58.e6 Kg6 59.Rd5 a6 60.Kd7 Re2 61.e7 Kf7 62.g6+ Nice endgame play by Rui! 1-0


(6) Gaffagan,Steve (2035) - Ivanov,Aleksandr (2187) [C07]
Mechanics' Summer TNM: 2000+ San Francisco (2.6), 04.06.2016
[de Firmian,Nick]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 cxd4 5.Nxd4 Nc6 6.Bb5 Bd7 7.Nxc6 Bxc6 8.Bxc6+ bxc6 9.0-0 Bc5 10.c4 Nf6 11.exd5 cxd5 12.Qa4+ Qd7 13.Qxd7+ Kxd7 14.cxd5 Nxd5 15.Ne4 Rhc8 16.Rd1 Ke7 17.Bd2 Rab8 18.Nxc5 Rxc5 19.Rac1 Rxc1 20.Bxc1 Rc8 21.g3 Rc2 22.Kg2 a6


Black has better pieces and an advantage. 23.a4 g6 24.h3 Kd7 25.b4 Kc6 26.Bd2 h5 27.Kf3 Kb7 28.g4 hxg4+ 29.hxg4 Rb2 30.b5 axb5 31.axb5 Rxb5 32.Rc1 Rb3+ 33.Be3 Rc3 34.Rxc3 Nxc3 35.Bd4 Nd5 36.g5 Kc6 37.Ke4 Kd6 38.Be5+ Ke7 39.Bb2 Nb6 40.Bf6+ Kd6 41.Be5+ Kc6 42.Bb2 Nd7 43.Bd4 Kb5 44.Be3 Kc4 45.Bd4 Nb8 46.Be5 Nc6 47.Bb2 Kc5 48.Bc3 Kd6 49.Bb2 e5 50.f4 exf4 51.Kxf4 Ke6 52.Bf6 Nb4 53.Kg4 Nd5 54.Bd4 Kd6 55.Ba7 Ke5 56.Bc5 Ke4 57.Bd6 Ne3+ 58.Kh3 Kf5 59.Be7 Nd5 60.Bd8 Nf4+ 61.Kg3 Ne6 62.Ba5 Nxg5 63.Bb4 Ne4+ 64.Kf3 g5 65.Be7 g4+ 66.Kg2 Kf4 67.Bd8 f5 68.Bc7+ Ke3 69.Bb6+ Ke2 70.Bc7 Ke3 71.Bb6+ Kf4 72.Bc7+ Kg5 73.Bd8+ Nf6 74.Be7 f4 75.Kf2 Kf5 76.Bd6 Ne4+ 0-1


(7) Doyle,Bryon (2186) - Askin,David (2003) [B11]
Mechanics' Summer TNM: 2000+ San Francisco (2.7), 04.06.2016
[de Firmian,Nick]

1.e4 c6 2.Nc3 d5 3.Nf3 Bg4 4.h3 Bxf3 5.Qxf3 e6 6.d3 Nf6 7.g3 Nbd7 8.Bg2 Bc5 9.0-0 0-0 10.Qd1 Qc7 11.d4 Bb6 12.e5 Ne8 13.Na4 f6 14.exf6 Nexf6 15.Bf4 e5 16.dxe5 Nxe5 17.Nxb6 axb6 18.Qd4 Rae8 19.Rfe1 Nfd7 20.Re3 Re7 21.Rae1 Rfe8 22.Bg5 Nf6 23.Bf4 Nfd7 24.h4 b5 25.Kh1 Qd6 26.b3 [26.g4; 26.a4! bxa4 27.c4+-] 26...h6?! [26...b4+/-] 27.c4 bxc4 28.bxc4 Qf6 29.cxd5 c5


30.Bxe5? [30.Qd1 g5 31.Bxe5 (31.d6 gxf4 32.gxf4) 31...Rxe5 32.Rxe5 Rxe5 33.Rxe5 Nxe5 34.d6] 30...Rxe5?! [30...cxd4 31.Bxf6 Rxe3 32.fxe3 Nxf6+/- 33.d6 Rd8 34.exd4 Rxd6 35.d5] 31.Qf4 [31.Qd2!] 31...Rxe3 32.Rxe3?! [32.fxe3+/-] 32...Qxf4 33.gxf4 Kf7 34.Rxe8? [34.d6! b6 35.Bd5+ Kf8+/- 36.Kg2 (36.Bc6) ] 34...Kxe8 If anyone is better now, it's Black 35.d6 b6 36.Kg1? [36.Bh3=] 36...Nf6 [36...Nf8; 36...Kd8] 37.Bc6+ Kd8 38.Kg2 Ne8 39.d7 Nf6 40.Kg3 Nxd7 41.Kg4 Ke7?! [41...c4!? 42.Kf3 (42.Bb5 c3 43.Bd3 Nc5 44.Bb1 Na6 (44...Ke7 45.Kf5 similar) 45.Kf5 Ke8 46.Kg6 Kf8 47.f5 White is holding) 42...Nc5 43.Ke3 c3 44.Bb5 Ke7=/+] 42.Kf5 Nf8 43.Bb5 Ne6 44.Ke5 Nd4 45.Bd3 Nc6+ 46.Kf5 Nb4 47.Bc4 Nc6 48.Kg6?! [48.a4; 48.Ke4] 48...Kf8


White has a bit of a problem. 49.Kf5? [49.a4! Ne7+ 50.Kh5= (50.Kh7?? Nf5 51.h5 Nd6-+) ] 49...Nd4+? [49...b5! 50.Bf1 (50.Bxb5 Nd4+ 51.Ke5 Nxb5) 50...c4 51.Ke4 Nb4 52.Kd4 Ke7! 53.Bg2 Kd6] 50.Ke4 Ke7 [50...b5?? 51.Bf1 b4 52.Bc4] 51.Kd5= Kd7 [51...Nf5 52.h5 Nd4 53.a4] 52.a4 Everything is =(0.00) 52...Nf5 53.h5 [53.Bb5+ Kc7=] 53...Ne7+ [53...Nd4] 54.Ke5 Nc6+[] 55.Kf5 Ne7+ [55...Ke7; 55...Na5] 56.Ke4 Kd6 57.f5 Nc6 58.f4 Nd4 59.Bd3 Nc6 60.f6 gxf6 61.Kf5 Ke7 62.Kg6 Nb4?? [62...Nd8 63.Kxh6 (63.f5 Nf7) 63...Ne6 64.f5 Nf4 65.Bc4 Kd6 66.Kg7 Nxh5+ 67.Kg6 Ke5 68.Kxh5 Kxf5=] 63.Bc4+- Nc2 64.Kxh6 Ne3 65.Bd3?? [65.Ba2[]+- c4 66.Kg7 (66.Kg6 c3 67.Bb3) 66...Nf5+ 67.Kg8 c3 (67...Nh6+ 68.Kh7) 68.Bb1 Ke6 69.Bc2 Ne7+ 70.Kf8 Nf5 71.Bb3+ Kd6 72.Kf7] 65...c4 [65...Kf7; 65...Kf8] 66.Bb1= What happened? This is still quite drawn. [66.Bxc4=] 0-1


(8) Mandjian,Vahak (1808) - He,Tianyi (2186) [D95]
Mechanics' Summer TNM: 2000+ San Francisco (2.8), 04.06.2016

1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.Nc3 d5 5.e3 0-0 6.Qb3 c6 7.Bd2 b6 8.cxd5 cxd5 9.Rc1 Bb7 10.Be2 Nc6 11.Qa4 a6 12.b4 Qd6 13.a3 b5 14.Qb3 e5 15.dxe5 Nxe5 16.Nxe5 Qxe5 17.Bf3 Ne4 18.Nxe4 dxe4 19.Bc3 Qf5 20.Be2 Bxc3+ 21.Rxc3 Rad8 22.Rc5 Qf6 23.Qc3 Qe6 24.0-0 Qa2 25.Bd1 Rd3 26.Qf6 Qxa3 27.h4 Qxb4 28.Rc7 Bc8 29.Rc6 Rfd8 30.Bc2 R3d6 31.Rxd6 Qxd6 32.Qg5 Re8 33.Rd1 Qc6 34.h5 Qxc2 35.Rd4 Qc1+ 36.Kh2 Qc7+ 37.g3 Qe5 38.Qxe5 Rxe5 39.Rd8+ Kg7 40.Rxc8 Rxh5+ 41.Kg2 b4 42.g4 Rb5 43.Kh3 0-1

(9) Smith,Robert (1800) - Griffith,Kyron (2455) [B24]
Mechanics' Summer TNM: 2000+ San Francisco (2.9), 04.06.2016

1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nge2 e6 6.0-0 Nge7 7.d3 0-0 8.Bg5 h6 9.Be3 Nd4 10.Qd2 Kh7 11.f4 d6 12.Rae1 Rb8 13.a4 Qa5 14.e5 Nef5 15.Bf2 dxe5 16.g4 Nxe2+ 17.Rxe2 Nd4 18.Rxe5 f6 19.Bxd4 fxe5 20.Bxe5 Bxe5 21.fxe5 Bd7 22.Rxf8 Rxf8 23.Bxb7 Qc7 24.Be4 Qxe5 25.Qe3 Qf6 26.Qe1 Bxa4 27.b3 Bd7 28.Ne2 Qg5 29.Qg3 e5 30.h3 Qd2 31.Qg2 Qe1+ 0-1

(10) Diaz,Conrado (2345) - Yanofsky,Kevin (1964) [D17]
Mechanics' Summer TNM: 2000+ San Francisco (2.10), 04.06.2016
[de Firmian,Nick]

1.d4 [1.Nf3 d5 1-0 (49) Zhou,J (2630)-Shankland,S (2679) Atlantic City 2016] 1...d5 2.Nf3 Nf6 3.c4 c6 4.Nc3 dxc4 5.a4 Bf5 6.Ne5 e6 7.f3 Bb4 8.Nxc4 [8.e4 Bxe4 9.fxe4 Nxe4 10.Bd2 Qxd4 11.Nxe4 Qxe4+ 12.Qe2 Bxd2+ 13.Kxd2 Qd5+ 14.Kc2 is the "Big Slide" variation of the Slav. Controversy continues.] 8...0-0 9.Bg5 [9.Kf2!? has scored rather well 9...c5 10.e4 Bg6 11.Na2 Nc6 12.Nxb4 Nxb4 13.Qb3 Nxe4+ 14.fxe4 Bxe4 15.Bf4 Qf6 16.Qe3 Rad8 17.Qxe4 Rxd4 18.Qe5 Rxf4+ 19.Kg1 Qxe5 20.Nxe5 Rd8 21.Rc1 Rd5 22.Nc4 Nd3 23.Bxd3 Rxd3 24.g3 Rfd4 25.Kf2 f6 26.Rhe1 e5 27.Re3 Kf7 28.Rxd3 Rxd3 29.Ke2 Rd4 30.Nd2 b6 31.a5 Ra4 32.axb6 axb6 33.Rc3 Rb4 34.b3 Ke6 35.Rc4 Rxc4 36.bxc4 f5 37.h4 e4 38.Ke3 Ke5 39.Nb1 g6 40.Nc3 h6 41.Ne2 Kf6 42.g4 fxg4 43.Kxe4 Ke6 44.Nf4+ Kf6 45.Nd5+ Ke6 46.Nxb6 g5 47.hxg5 hxg5 48.Na4 Kd6 49.Ke3 1-0 (49) Zhou,J (2630)-Shankland,S (2679) Atlantic City 2016] 9...h6 10.Bh4 c5 11.dxc5 g5?!N Improving White's bishop. [Pretty much everyone trades queens, 11...Qxd1+ when the slightly surprising 12.Kxd1!? Bxc5!? (12...Nc6!?; 12...Rd8+?! 13.Kc1 is acually heading for c2 (after e2-e4 of course)) ] 12.Bf2 Nbd7 13.e4 Bh7 14.Qb3 Bxc5 15.Rd1 Bxf2+ 16.Kxf2 Qc7 17.Qb4 a6 18.Qd6 Rac8 19.e5 Nh5 20.Qxd7 Qc5+ 21.Qd4 Qb4 22.Rd2 f6 23.Nd6 Qxd4+ 24.Rxd4 fxe5 25.Rb4 Rcd8 26.Nde4 a5 27.Rxb7 Rd4 28.Ke3 Rfd8 29.g3 Bxe4 30.fxe4 1-0

(11) Lee,Andy (2344) - Persidsky,Andre (1876) [B60]
Mechanics' Summer TNM: 2000+ San Francisco (2.11), 04.06.2016

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 Qa5 7.Bxf6 gxf6 8.f4 Bd7 9.Nb3 Qd8 10.Qh5 e6 11.0-0-0 a6 12.f5 Qc7 13.g3 Ne5 14.fxe6 Bxe6 15.Nd4 Bg4 16.Nd5 Qd8 17.Qh4 Be7 18.Nf5 Bxf5 19.exf5 Rc8 20.Kb1 Rc5 21.Bg2 Rc4 22.Rd4 b5 23.Rhd1 Rxd4 24.Rxd4 Kd7 25.Rd1 Kc8 26.Qd4 Bf8 27.Qa7 Qa5 28.Nb6+ Kd8 29.Qb8+ Ke7 30.Qc7+ Ke8 31.Bc6+ 1-0

(12) Drane,Robert Will (1828) - Viswanath Natraj (2128) [B53]
Mechanics' Summer TNM: 2000+ San Francisco (2.12), 04.06.2016

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.d4 cxd4 5.Qxd4 Bd7 6.Bxc6 bxc6 7.c4 e5 8.Qd3 h6 9.Nc3 Nf6 10.b3 Be7 11.0-0 0-0 12.Re1 Be6 13.Ba3 Qa5 14.Bc1 Nd7 15.Bd2 Qc7 16.Rac1 Nc5 17.Qe2 f5 18.exf5 Bxf5 19.Red1 Nd3 20.Ra1 Rae8 21.Ne1 Nf4 22.Bxf4 exf4 23.Qd2 Bf6 24.Rac1 Bg4 25.f3 Qb6+ 26.Kh1 Bf5 27.Nd3 Qe3 28.Nf2 Bxc3 29.Qxd6 Qxf2 0-1

(13) Winslow,Elliott (2294) - Lehman,Clarence (1900) [E92]
Mechanics' Summer TNM: 2000+ San Francisco (2.14), 04.06.2016

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 0-0 6.Be2 e5 7.d5 Na6 8.Bg5 h6 9.Be3 Ng4 10.Bd2 f5 11.h3 Nf6 12.exf5 gxf5 13.Qc1 Kh7 14.g4 Ne4 15.Nxe4 fxe4 16.Qc2 Kh8 17.Qxe4 Nc5 18.Qg6 Rf6 19.Qc2 e4 20.Nh4 Qe8 21.Be3 Qe5 22.Rd1 Bd7 23.Rd4 Raf8 24.b4 Ba4 25.Qb1 Nd3+ 26.Bxd3 exd3 27.Qxd3 Re8 28.0-0 Re7 29.Ng6+ Rxg6 30.Qxg6 Be8 31.Qd3 c5 32.dxc6 Bxc6 33.Rxd6 Be4 34.Qd4 Kh7 35.Qxe5 Rxe5 36.Bd4 1-0

(14) Walder,Michael (2007) - Rudyak,Felix (1888) [B01]
Mechanics' Summer TNM: 2000+ San Francisco (2.15), 04.06.2016

1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.d4 Nf6 5.Nf3 c6 6.h3 Bf5 7.Ne5 Nbd7 8.Nc4 Qc7 9.Qf3 e6 10.Bf4 Qd8 11.0-0-0 Bb4 12.Nd6+ Bxd6 13.Bxd6 Nb6 14.Ba3 Nbd5 15.g4 Nxc3 16.Qxc3 Bg6 17.Bg2 Qd7 18.Rhe1 0-0-0 19.d5 Nxd5 20.Bxd5 exd5 21.Re7 Qxe7 22.Bxe7 Rde8 23.Qxg7 1-0

(15) Clemens,Kristian (1990) - Ricard,Bruce (1875) [D48]
Mechanics' Summer TNM: 2000+ San Francisco (2.16), 04.06.2016
[de Firmian,Nick]

1.Nf3 d5 2.d4 Nf6 3.c4 c6 4.Nc3 e6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.0-0 c5 10.Qe2 Bb7 11.Rd1 cxd4 12.exd4 Be7 13.Bg5 0-0 14.Ne5 Nb6 15.Bc2 h6 16.Bh4 b4 17.Bxf6 Bxf6


[17...gxf6 18.Qg4+ Kh8 19.Qh4 Kg7 20.Qg3+ Kh8 21.d5 Nxd5 (21...fxe5?! 22.Qxe5+ f6 23.Qh5 f5 24.Qxh6+ Kg8 25.dxe6 bxc3 26.Qg6+ Kh8 27.Rxd8 Raxd8 28.Bxf5) 22.Ng6+ fxg6 23.Qxg6 f5 24.Qxh6+ Kg8 25.Qxe6+] 18.Ne4? [18.Qd3 Re8 (18...g6 19.Nxg6 Re8 20.Ne5) 19.Qh7+ Kf8 20.Be4 bxc3 21.Bxb7 Qd6 (21...cxb2 22.Nc6) 22.Bxa8 (22.Nc6 g6 23.bxc3) 22...cxb2 23.Rab1 Rxa8 24.Nc4 (24.Ng4 Bxd4 25.Rxb2) 24...Nxc4 25.Qh8+] 18...Bxe4?? [18...Rc8 19.Qd3 g6 20.Nxg6 fxg6 21.Nc5 Rf7 22.Nxe6+/= Qe8 23.Qxg6+ Rg7 24.Nxg7 Qxg6 25.Bxg6 Kxg7 26.Bf5+/=] 19.Qxe4+- g6 20.Nxg6 fxg6 21.Qxg6+ Bg7 22.Qxe6+?! [22.Qh7+ Kf7 23.Bg6+ Kf6 24.Rd3+-] 22...Kh8? [22...Rf7 23.Bg6 Raa7 still winning but a lot of work] 23.Qe4 Kg8 [23...Rf5 24.Qxf5 Qg8] 24.Qh7+ Kf7 25.Rd3 Qg5 26.Re1! 1-0


(16) Busch,Jonah (1865) - Kuczek,Kevin (1984) [C44]
Mechanics' Summer TNM: 2000+ San Francisco (2.17), 04.06.2016

1.e4 e5 2.d4 exd4 3.c3 d5 4.exd5 Qxd5 5.cxd4 Nc6 6.Nf3 Bg4 7.Be2 Bb4+ 8.Nc3 Nf6 9.0-0 Bxc3 10.bxc3 0-0 11.c4 Qe4 12.Bd3 Bxf3 13.Bxe4 Bxd1 14.Bxc6 Be2 15.Re1 Bxc4 16.Bxb7 Rab8 17.Bf3 Rfe8 18.Bf4 Rxe1+ 19.Rxe1 Bxa2 20.Bxc7 Rc8 21.Bd6 Bd5 22.Bxd5 Nxd5 23.Bc5 a5 24.Ra1 Ra8 25.Kf1 f6 26.g3 Kf7 27.Ke2 Ke6 28.Kd3 a4 29.Kc4 Nc7 30.Re1+ Kd7 31.Re7+ Kd8 32.Ba3 Ne8 33.Kb5 Nc7+ 34.Kc6 Ra6+ 35.Kb7 Nd5 36.Bc5 Rb6+ 37.Bxb6+ Kxe7 38.Bc5+ Kd7 39.Ka6 Kc6 40.Ka5 Nc3 41.Kb4 Ne4 42.Bf8 g6 43.f3 Nd2 44.Be7 Nxf3 45.Kc4 f5 46.h4 Nd2+ 47.Kb4 Ne4 48.Kxa4 Kd5 49.h5 Kxd4 50.hxg6 hxg6 51.Kb3 Nxg3 52.Kc2 Ke3 53.Kd1 Kf3 54.Ke1 Kg2 55.Bg5 Ne4 56.Be3 g5 57.Ke2 f4 58.Bc1 f3+ 0-1

(17) Maser,Thomas (1956) - Krasnov,Steven (1870) [B58]
Mechanics' Summer TNM: 2000+ San Francisco (2.18), 04.06.2016
[de Firmian,Nick]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 Bd7 7.Be3 Nc6 8.f4 b5 9.0-0 b4 10.Nd5 e6 11.Nxc6 Bxc6 12.Bb6 Qb8 13.Nc7+ Kd7 14.Nxa8 Bxa8 15.Bd4 Bxe4 16.Bf3 d5 17.Bxf6 Bxf3 18.Rxf3 gxf6 19.f5 Qb6+ 20.Kh1 Be7 21.a3 bxa3 22.bxa3 Qc6 23.Rd3 Rc8 24.fxe6+ fxe6 25.c3 Qc4 26.Qf3 f5 27.h3 Rg8 28.Rd4 Qc7


29.Rxd5+! Ke8 30.Rd3 Qc4 31.Rad1 Kf8 32.Rd7 Qc5 33.Qb7 Qxa3 34.Rxe7 Qxe7 35.Rd7 1-0


(18) Hakobyan,Sos (1830) - Askin,Michael (1949) [B18]
Mechanics' Summer TNM: 2000+ San Francisco (2.19), 04.06.2016
[de Firmian,Nick]

1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.Nf3 Nd7 7.Bd3 e6 8.0-0 Ngf6 9.Re1 Be7 10.Bxg6 hxg6 11.c4 Qc7 12.h3 0-0 13.Be3 Rfe8 14.a4 Bb4 15.Bd2 Qa5 16.Re2 Rad8 17.Bxb4 Qxb4 18.Qc2 c5 19.Rd2


19...e5! 20.d5 e4! 21.Ne1 e3! 22.fxe3 Rxe3 23.a5 Rxg3 24.Ra4 Qb3 25.Qxb3 Rxb3 26.Nd3 Re8 27.Kf1 Ne4 28.Rd1 Ne5 29.Nxe5 Rxe5 30.d6 Re8 31.Raa1 Rd8 32.Re1 Ng3+ 33.Kf2 Rxd6 34.Re8+ Kh7 35.Re3 Rf6+ 36.Rf3 Ne4+ 37.Ke2 Rxb2+ 38.Ke3 Rxf3+ 39.gxf3 Nd6 40.f4 Rb3+ 41.Kd2 Nxc4+ 42.Kc2 Rxh3 43.Ra4 Nd6 44.Ra1 g5 45.fxg5 Kg6 46.a6 b6 47.Rd1 Nb5 48.Rb1 Nc7 49.Kb2 Kxg5 0-1


(19) Melville,Cailen (1935) - Xu,Jayden (1855) [A60]
Mechanics' Summer TNM: 2000+ San Francisco (2.20), 04.06.2016
[de Firmian,Nick]

1.d4 Nf6 2.c4 e6 3.g3 c5 4.d5 exd5 5.cxd5 b5 6.e4 Nxe4 7.Bg2 Nd6 8.Nf3 Qe7+ 9.Be3 Nc4 10.Qe2 Nxe3 11.fxe3 c4 12.0-0 b4 13.d6 Qxd6 14.Ng5 f6


15.Nf7! Kxf7 16.Qxc4+ Ke7 17.Qxc8 Qe5 18.Nd2 Qxe3+ 19.Kh1 Qxd2 20.Rad1 Qxb2 21.Rfe1+ Kf7 22.Qe8+ Kg8 23.Bd5# Great attack by Cailen! 1-0


(20) Estolas,Brendyn A (2007) - Davila,Carlos (2085) [D00]
Mechanics' Summer TNM: 2000+ San Francisco (2.21), 04.06.2016

1.d4 Nf6 2.Nc3 d5 3.e3 e6 4.Nge2 c5 5.h3 Nc6 6.g4 a6 7.a4 b6 8.Bg2 Bb7 9.0-0 Bd6 10.f4 Rc8 11.Bd2 Nb4 12.Ng3 h5 13.g5 h4 14.gxf6 hxg3 15.fxg7 Rg8 16.f5 e5 17.f6 e4 18.h4 Kd7 19.h5 Rxg7 20.Bh3+ Kc7 21.fxg7 g2 22.Rxf7+ Kb8 23.Rxb7+ Kxb7 24.Qg4 Rb8 25.Kxg2 Bc7 26.Ne2 Qd6 27.Bxb4 Qh2+ 28.Kf1 cxb4 29.Qg2 Qd6 30.g8Q Qf6+ 31.Ke1 Rxg8 32.Qxg8 Qh4+ 33.Kd2 Qxh3 34.Qxd5+ 1-0

(21) Makhanov,Gaziz (1830) - Cortinas,Marty (1663) [B33]
Mechanics' Summer TNM: 1600-1999 San Francisco (2.22), 04.06.2016

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Nxc6 bxc6 7.Bc4 d6 8.0-0 Be7 9.Bg5 0-0 10.Bb3 Be6 11.Qd2 Qc7 12.Rad1 Rad8 13.Qe2 h6 14.Bh4 Qb6 15.h3 Bxb3 16.axb3 Rfe8 17.Rd3 Kh8 18.Rfd1 Qb4 19.Bxf6 Bxf6 20.Qh5 Rd7 21.Rf3 Re6 22.h4 Kh7 23.g4 g6 24.g5 gxh5 25.gxf6 Rd8 26.Kh2 Rg8 27.Re3 Rxf6 28.f3 d5 29.Ne2 Qc5 0-1

(22) Porlares,Teodoro (1728) - Bradley,Christopher Nolan + (1634) [A45]
Mechanics' Summer TNM: 1600-1999 San Francisco (2.24), 04.06.2016

1.d4 Nf6 2.Bg5 Ne4 3.Bf4 c5 4.Nf3 Qb6 5.b3 g6 6.Be5 Nf6 7.d5 d6 8.Bb2 Bg7 9.e3 0-0 10.Be2 Qa5+ 11.Bc3 Qc7 12.0-0 b6 13.Bb2 a5 14.a4 Na6 15.Na3 Qb8 16.c4 Bg4 17.h3 Bxf3 18.Bxf3 Ne8 19.Qd2 Bxb2 20.Qxb2 Nac7 21.g4 Nf6 22.g5 Nd7 23.Be2 f5 24.f4 Qe8 25.Bf3 Rd8 26.Kg2 e5 27.dxe6 Qxe6 28.Nb5 Nxb5 29.Bd5 Qxd5+ 30.cxd5 Nc7 31.Rad1 Rfe8 32.Rf3 Re4 33.h4 Rde8 34.Kf2 b5 35.axb5 Nb6 36.h5 R8e7 37.hxg6 Ncxd5 38.Rh1 Rg7 39.Rxh7 Rxh7 40.gxh7+ Kxh7 41.Rh3+ Kg6 42.Rh6+ Kf7 43.g6+ 1-0

(23) Donaldson,Kyle (1645) - Perlov,Alexander (1724) [A17]
Mechanics' Summer TNM: 1600-1999 San Francisco (2.25), 04.06.2016
[de Firmian,Nick]

1.c4 e6 2.Nc3 d5 3.cxd5 exd5 4.d4 Nf6 5.g3 Be7 6.Bg2 0-0 7.e3 c6 8.Nge2 Bf5 9.0-0 Re8 10.a3 Qc8 11.b4 Nbd7 12.Nf4 Ne4 13.Nxe4 dxe4 14.Bd2? Worse than most moves, but all of them are eclipsed by [14.g4!+/- winning the e-pawn! 14...-- (14...g5? 15.gxf5 gxf4 16.Qg4+ just makes it two pawns) ] 14...Nb6 [14...Nf6] 15.Rc1 Qd7 16.Qb3 Rac8 [16...Bd6] 17.f3 exf3 [17...Bd6-/+] 18.Bxf3 Bf6?! [18...Bg5; 18...Bd6] 19.Rce1 [19.a4!= and b4-b5 to find use for the dark squared bishop] 19...Be4 20.Nh5 Bd8? [20...Nd5!-/+] 21.Bxe4 [21.Bg4! White wins exchange; Black has full compensation, no more.] 21...Rxe4 22.Rf4 Qe6 23.Rxe4 Qxe4 24.Rf1 Nd5 25.Nf4 Bg5 26.Qb1 Qxb1 [26...Nf6!?] 27.Rxb1 Bxf4! 28.gxf4 [28.exf4] 28...f5! 29.Rc1 Re8 30.Kf2 Nf6 31.a4 Ne4+ 32.Ke2 Kf7 33.b5 cxb5 34.Rc7+ Re7 35.Rxe7+ Kxe7 36.axb5 Ke6 37.Bb4 Kd5 38.Kd3 Nf2+ 39.Ke2 Ne4 40.Kd3 g6 41.Be7 Nf2+ 42.Kc3 Ng4 43.Kd3 Nxh2 44.Bf6 Ng4 45.Bh4 a5 46.bxa6 bxa6 47.Bd8 h5 48.Bh4 a5 49.Be1 a4 50.Kc3 Nxe3 51.Kb4 Nc2+ 0-1

(24) Khamkar,Susheel (1466) - Papanek,Ella (1997) [A36]
Mechanics' Summer TNM: 1600-1999 San Francisco (2.27), 04.06.2016

1.c4 c5 2.Nc3 e6 3.g3 Nf6 4.Bg2 Nc6 5.e4 Nb4 6.d3 d5 7.a3 Qa5 8.Rb1 Nc6 9.exd5 exd5 10.cxd5 Nd4 11.Nge2 Bg4 12.0-0 Nf3+ 13.Kh1 Be7 14.h3 h5 15.Nf4 Nh2 16.hxg4 hxg4 17.Kg1 Nxf1 18.Qxf1 0-0-0 19.Bd2 Qa6 20.Rc1 g5 21.d6 Bxd6 22.Nfd5 Nd7 23.Bxg5 Rdg8 24.Ne7+ Bxe7 25.Bxe7 Qh6 26.Bh4 Ne5 27.Nd5 Kb8 28.Nf4 Nf3+ 29.Bxf3 gxf3 30.Kh1 Qxf4 31.Rc4 Qf5 32.Qd1 Qh3+ 33.Kg1 Qg2# 0-1

(25) Argo,Guy (1884) - Etinoff,Claude (1648) [C02]
Mechanics' Summer TNM: 1600-1999 San Francisco (2.28), 04.06.2016
[de Firmian,Nick]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 cxd4 6.cxd4 Nge7 7.Na3 a6 8.Nc2 Nf5 9.Bd3 Be7 10.0-0 0-0 11.g4 Nh4 12.Nxh4 Bxh4 13.g5 Bxg5 14.Qh5 h6 15.f4 Be7 16.Kh1 f5 17.Rg1 Kh8 18.Rg6 Qe8


19.Rxh6+! gxh6 20.Qxh6+ Kg8 21.Bd2 Bf6 22.Rg1+ 1-0


(26) Boldi,Nicholas (1631) - Drury,Mark (1878) [A35]
Mechanics' Summer TNM: 1600-1999 San Francisco (2.29), 04.06.2016
[de Firmian,Nick]

1.e4 c5 2.Nf3 d6 3.c4 Nc6 4.d4 cxd4 5.Nxd4 g6 6.Nc3 Bg7 7.Nxc6 bxc6 8.Be2 Nf6 9.Be3 0-0 10.0-0 Qc7 11.f4 Bb7 12.Bf3 Rfd8 13.Rc1 Rd7 14.b3 Qd8 15.Rf2 Ne8 16.Bg4 e6 17.f5 exf5 18.exf5 Rc7 19.fxg6 hxg6 20.Ne4 f5


21.Bxf5 gxf5 22.Rxf5 Rf7 23.Rxf7 Kxf7 24.Ng5+ Kg8 25.Qh5 Qe7 26.Qh7+ Kf8 27.Qf5+ Nf6 28.Nh7+ Kg8 29.Nxf6+ Bxf6 30.Bh6 Bg7 31.Bxg7 Qe3+ 32.Kf1 Qxc1+ 33.Kf2 Qd2+ 34.Kg3 Qe1+ 35.Kf4 Qf2+ 36.Kg5 Qxf5+ 37.Kxf5 Kxg7 38.Kg5 Rf8 39.h4 d5 40.cxd5 cxd5 41.h5 d4 42.h6+ Kh7 43.g4 d3 44.Kh5 Be4 45.a4 d2 46.a5 d1Q 47.a6 Rg8 48.b4 Qxg4# 0-1


(27) Newey,Richard (1630) - Mohammed,Mansoor (1743) [C51]
Mechanics' Summer TNM: 1600-1999 San Francisco (2.30), 04.06.2016

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Bd6 6.d4 Nf6 7.a4 0-0 8.0-0 h6 9.Na3 Re8 10.Be3 Na5 11.Ba2 Bxa3 12.Bxf7+ Kxf7 13.Rxa3 Qe7 14.Qc1 Kg8 15.Bxh6 gxh6 16.Qxh6 Qg7 17.Qh4 Nh7 18.Re1 Qf6 19.Qh5 Rf8 20.Re3 d6 21.Ra2 Qf7 22.Qh4 Qxa2 0-1

(28) Robeal,Rafik (1737) - Huberts,Alexander (1615) [E61]
Mechanics' Summer TNM: 1600-1999 San Francisco (2.31), 04.06.2016
[de Firmian,Nick]

1.Nf3 Nf6 2.d4 c5 3.e3 g6 4.Be2 Bg7 5.0-0 0-0 6.b3 b6 7.Bb2 Bb7 8.c4 e6 9.Nc3 d6 10.Ne1 Nc6 11.Bf3 Qe7 12.Ne4 Rad8 13.Rb1 Nxe4 14.Bxe4 f5 15.Bf3 Qg5 16.g3 Rf7 17.Bg2 h6 18.h4 Qe7 19.d5 exd5 20.Bxd5 Ne5 21.Bxf7+ Kxf7 22.f3 g5 23.h5 Bf6 24.Qc2 Qe6 25.Rd1 g4 26.fxg4 Nxg4 27.Bc1 Nxe3 28.Bxe3 Qxe3+ 29.Qf2 Qe4 30.Kh2 Qg4 31.Ng2 Qxh5+ 32.Nh4 Be4 33.Rde1 Re8 34.Qe2 Qxe2+ 35.Rxe2 Bxh4 36.gxh4 (...) 1-0

(29) Tamondong,Cesar (1715) - Nanugonda,Vishva (1593) [E08]
Mechanics' Summer TNM: 1600-1999 San Francisco (2.32), 04.06.2016
[de Firmian,Nick]

1.d4 d5 2.c4 e6 3.g3 Nf6 4.Bg2 Be7 5.Nf3 Nbd7 6.Qc2 c6 7.0-0 0-0 8.b3 b6 9.Nc3 Bb7 10.Bf4 h6 11.Ne5 a6 12.Rad1 Rc8 13.e4 Kh8 14.Nxd7 Qxd7 15.e5 Ne8 16.Be3 b5 17.c5 Nc7 18.f4 f5 19.exf6 Bxf6 20.b4 Qf7 21.Bf3 Rce8 22.Qd3 Qg8 23.Bh5 Rd8 24.Bg6 Bc8 25.Nb1 Bd7 26.Nd2 Be8 27.Nf3? [27.g4!+- locks up e5 for the knight] 27...Bxg6 28.Qxg6 Qh7 29.Ne5?! [29.Qxh7+ Kxh7 30.g4 g6+/-] 29...Bxe5 30.Qxh7+ Kxh7 31.fxe5 White still has prospects 31...Kg6 32.g4 Kh7 33.Kg2 g5? 34.Kg3 Kg7 35.h4 Kg6 36.hxg5 hxg5 37.Rh1 Rh8 38.Rdf1 Rxh1 39.Rxh1 Rf8 40.Rh5+- Rf1 41.Rxg5+ [41.Rh8! Rf7 42.Rd8! goes after the c-pawn (!) (42.Rb8!) ] 41...Kh7 42.Rh5+ Kg7 43.Rh2 [43.Bg5!] 43...Rb1 44.Bd2 Ra1 45.Kh4 [45.Bg5!] 45...Rf1 46.Kh5 Rf3 47.Bh6+ Kf7 48.Rd2 [48.Bg5!] 48...Rh3+ 49.Kg5 Rf3 50.Rb2 Rf1 51.Rh2 Rf3 52.Kh5 Rf1 53.Be3 Kg7 54.Kg5 Rb1 55.Rh6 Rxb4 56.Bd2? Ra4 57.Rg6+ Kf7 58.Kh6?? Ne8-+ 59.Kg5 Rxa2? [59...Rxd4!] 60.Bf4 b4 61.Rh6 b3 62.Bc1 b2 63.Bxb2 Rxb2 64.Rh7+ Kf8 65.Kg6 Rf2 66.Rh8+ 1/2-1/2

(30) McKellar,Daniel (1844) - Casares,Nick (1603) [D36]
Mechanics' Summer TNM: 1600-1999 San Francisco (2.33), 04.06.2016
[de Firmian,Nick]

1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.Nf3 e6 5.Bg5 Be7 6.e3 Nbd7 7.cxd5 exd5 8.Bd3 0-0 9.0-0 Re8 10.Qc2 h6 11.Bh4 Nh5 12.Bxe7 Rxe7 13.b4 b5 14.a4 Nb6 15.axb5 cxb5 16.Nxb5 a6 17.Ne5? Rxe5 18.dxe5 axb5 19.Rxa8 Nxa8 20.Be2 g6 21.Bxh5 gxh5 22.Qc6


22...Be6 23.Rc1 Nb6 24.Qxb5 Nc4 25.Rd1 Nxe5 26.e4


26...Qg5! Black seizes the initiative, with kingside threats 27.Qb8+ Kh7 28.Kf1 dxe4 29.Qd6 Bc4+ 30.Kg1 Be2 31.Rb1 Bf3 32.g3 Qf5 33.Qa6 Nd3 34.Qa7 Kg6 35.Qb6+ Kg7 36.Qd4+ f6 37.Qa7+ Kg6 38.Qb8 Kg7? 39.Qa7+ Kg6 40.Qb8 Kg7? [40...Qe6! stops the perpetual and threatens ...e4-e3, winning.] 1/2-1/2


(31) Mays,Jerry (1700) - Agdamag,Samuel Zamora (1526) [B01]
Mechanics' Summer TNM: 1600-1999 San Francisco (2.34), 04.06.2016

1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.g3 Nf6 5.Bg2 c6 6.Nf3 Bg4 7.h3 Bf5 8.0-0 e6 9.Nh4 Bg6 10.Nxg6 hxg6 11.d4 Bd6 12.Qe2 Kf8 13.Ne4 Nxe4 14.Qxe4 Nd7 15.c4 Re8 16.Qd3 Nf6 17.c5 Bb8 18.Bd2 Qd8 19.Bg5 Qd7 20.Rad1 Nh7 21.Be3 Nf6 22.f4 Nd5 23.Bc1 Rd8 24.a3 Bc7 25.b4 a6 26.g4 Ne7 27.a4 Nd5 28.Qb3 Ne7 29.Bb2 Nd5 30.Bc1 1-0

(32) Rakonitz,David (1617) - Parekh,Raj [D07]
Mechanics' Summer TNM: 1600-1999 San Francisco (2.35), 04.06.2016
[de Firmian,Nick]

1.d4 d5 2.Nf3 Nc6 3.c4 dxc4 4.Nc3 Nf6 5.e3 [5.e4; 5.Bg5] 5...Bg4 6.Bxc4 Nb4?


7.Qa4+ Nc6 8.Ne5 Bd7? 9.Bxf7# 1-0


(33) Sablon,Hadrien - Latourette,Nicholas (1585) [C50]
Mechanics' Summer TNM: 1600-1999 San Francisco (2.36), 04.06.2016

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 h6 5.0-0 Bc5 6.Be3 d6 7.Bxc5 dxc5 8.Bb5 Bd7 9.Bxc6 Bxc6 10.Nxe5 Qd4 11.Nxc6 Qxb2 12.Nd2 bxc6 13.Nc4 Qd4 14.Rb1 0-0 15.Kh1 Nd7 16.f4 Nb6 17.Ne5 Qa4 18.f5 Rfe8 19.Ng4 c4 20.f6 h5 21.Qd2 Kh7 22.Qg5 1-0

(34) Ross,Max (1574) - Cole,Tony (1400) [D05]
Mechanics' Summer TNM: U1600 San Francisco (2.37), 04.06.2016
[de Firmian,Nick]

1.d4 e6 2.e3 d5 3.Nf3 c5 4.c3 Nc6 5.Nbd2 Nf6 6.Bd3 Bd7 7.0-0 c4 8.Be2 Bd6 9.b3 b5 10.Bb2 0-0 11.a4 a6 12.bxc4 bxa4 13.cxd5 exd5 14.Rxa4 Bg4 15.Rxa6 Rxa6 16.Bxa6 Qb6 17.Qa4 Ra8 18.Qb5 Rxa6 19.Qxb6 Rxb6 20.Bc1 Ne4 21.c4 Nxd2 22.Nxd2 Ra6 23.c5 Be7 24.Re1 Nb4 25.f3 Nd3 26.Rf1 Bd7 27.g3 Ra1 28.Nb3 Rb1 29.Ba3 Rxf1+ 30.Kxf1 scores unreadable 1/2-1/2

(35) Reyes,Victor Hugo (1282) - Fernicola,Michael (1554) [B31]
Mechanics' Summer TNM: U1600 San Francisco (2.38), 04.06.2016

1.e4 c5 2.e5 Nc6 3.f4 e6 4.Nf3 f5 5.Bb5 Nge7 6.0-0 a6 7.Be2 Ng6 8.d3 Be7 9.c4 0-0 10.a3 b5 11.b3 Bb7 12.Bb2 Nxf4 13.Nd4 Nxe2+ 14.Nxe2 Qc7 15.Rf3 Nxe5 16.Nf4 Nxf3+ 17.gxf3 Qxf4 18.Nd2 Qe3+ 19.Kg2 Qxd3 20.Rc1 Bg5 21.Rc2 Bxd2 22.Rxd2 Bxf3+ 23.Qxf3 Qxd2+ 24.Kg3 Qxb2 25.cxb5 axb5 0-1

(36) Starr,Albert (1545) - Chambers,Don (1291) [A00]
Mechanics' Summer TNM: U1600 San Francisco (2.39), 04.06.2016
[de Firmian,Nick]

1.b4 e5 2.Bb2 Bxb4 3.Bxe5 Nf6 4.c4 0-0 5.e3 d6 6.Bc3 Bc5 7.Nf3 Re8 8.Be2 Nc6 9.0-0 Ne5 10.Nxe5 dxe5 11.d3 Qe7 12.Nd2 e4 13.d4 Bb4 14.Bxb4 Qxb4 15.Rb1 Qe7 16.c5 Nd5 17.Qc2 a5 18.a3 b6 19.Rfc1 Ba6 20.Bb5 Nb4 21.Qb3 Bxb5 22.axb4 Bd3 23.Rb2 a4 24.Qa3 b5 25.Rc3 c6 26.Nf1 Qg5 27.f4 exf3?? 28.Rxd3 Re4 29.Ng3 Rg4 30.gxf3 Rxg3+ 31.hxg3 Qxg3+ 32.Kf1 Qxf3+ 33.Rf2 Qh1+ 34.Ke2 Re8 35.Qa2 Re7 36.d5 Qh5+ 37.Kd2 Qh4 38.Kc3 Qe4 39.dxc6 Qe5+ 40.Kd2 Qc7 41.Qd5 Re8 42.Qd7 Qxd7 43.cxd7 Rd8 44.c6 a3 45.Rxa3 Kf8 46.Rf4 h5 47.Rd3 g5 48.Rf5 f6 49.c7 Ke7 50.cxd8Q+ Kxd8 51.Rxf6 h4 52.Rf8+ 1-0

(37) Barreyro,Romeo - Chan,John (1530) [D02]
Mechanics' Summer TNM: U1600 San Francisco (2.40), 04.06.2016

1.d4 Nf6 2.Nf3 d5 3.Bf4 c6 4.e3 h6 5.Bd3 Bg4 6.Nbd2 Nbd7 7.h3 Bxf3 8.Qxf3 e6 9.0-0 Be7 10.c4 a6 11.c5 b5 12.e4 g5 13.Bh2 h5 14.Qe2 g4 15.e5 Ng8 16.hxg4 h4 17.f4 h3 18.f5 Nxc5 19.dxc5 Bxc5+ 20.Kh1 hxg2+ 21.Qxg2 Ne7 22.fxe6 fxe6 23.Rf6 Qd7 24.Raf1 0-0-0 25.a4 Bd4 26.Nf3 Bb6 27.axb5 axb5 28.Ng5 Rh4 29.Nf7 Rg8 30.g5 Bc5 31.R1f4 Rxf4 32.Rxf4 Qa7 33.Rf1 Qa4 34.Qh3 Kd7 35.Qg2 Qh4 36.Qg3 Qb4 37.Qg2 Nf5 38.Bxf5 exf5 39.Rxf5 Qe1+ 40.Rf1 Qh4 41.Qc2 Qh3 42.Rf4 Be7 43.g6 Qe6 44.Qf2 c5 45.Qe2 c4 46.Qe3 Ra8 47.Qg1 Ra2 48.g7 Qc6 49.g8Q d4+ 50.Q1g2 1-0

(38) Simpkins,Jerry (1505) - Geiersbach,Christopher [B06]
Mechanics' Summer TNM: U1600 San Francisco (2.41), 04.06.2016
[de Firmian,Nick]

1.e4 d6 2.f4 g6 3.d4 Nf6 4.e5 dxe5 5.fxe5 Nd5 6.Nf3 Bg4 7.Be2 e6 8.c3 Nc6 9.0-0 Bxf3 10.Bxf3 h5 11.Be4 Bh6 12.Bxh6 Rxh6 13.Qf3 Rh7 14.Nd2 Qd7


15.Bxg6 Rg7 16.Qxh5 Rxg6 17.Qh8+ Ke7 18.Qxa8 Ne3 19.Rf2 Qd5 20.g3 Rg5 21.Qh8 Rf5 22.Qh4+ Kd7 23.Ne4 Ne7 24.Nf6+ Rxf6 25.Qxf6 Ng4 26.Qxf7 Nxf2 27.Qxf2 Nf5 28.g4 Nh6 29.h3 Qe4 30.Qf6 Qe3+ 31.Kg2 Qd2+ 32.Qf2 Qg5 33.Rf1 Nf5 34.Kh2 Nh4 35.Qf7+ Kc6 36.Qxe6+ Kb5 37.Qb3+ Kc6 38.Rf6+ Kd7 39.Qe6+ Kd8 40.Rf8# 1-0


(39) Hansen,Mateo (1566) - Capdeville,Barry (1239) [C41]
Mechanics' Summer TNM: U1600 San Francisco (2.42), 04.06.2016

1.e4 e5 2.Nf3 Nf6 3.Nc3 d6 4.d4 Be7 5.dxe5 dxe5 6.Qxd8+ Bxd8 7.Nxe5 Be6 8.Bc4 Bxc4 9.Nxc4 0-0 10.Bg5 Re8 11.0-0-0 Nc6 12.f3 b5 13.Nxb5 Rc8 14.Nd4 Ne5 15.Nxe5 Nxe4 16.Bxd8 Nf2 17.Ndc6 Nxh1 18.Rxh1 Kf8 19.Bg5 1-0

(40) Radaelli,Lucas - Allen,Tom (1400) [A52]
Mechanics' Summer TNM: U1600 San Francisco (2.43), 04.06.2016

1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.Nf3 Nc6 5.Bf4 Bc5 6.e3 Qe7 7.Bg5 Qe6 8.Qd5 Qxd5 9.cxd5 Nb4 10.Na3 Nxd5 11.h3 Nxe5 12.Nxe5 f6 13.Bxf6 Nxf6 14.Nb5 Bb4+ 15.Kd1 Ba5 16.b4 Bb6 17.Nc4 0-0 18.Nxb6 axb6 19.Nxc7 Ra4 20.Bc4+ Kh8 21.a3 Ne4 22.f3 Nf2+ 23.Ke2 Nxh1 24.Rxh1 Rxa3 25.Nd5 b5 26.Bxb5 Ra2+ 0-1

(41) Baer,Michael (1397) - Chui,Kevin [C02]
Mechanics' Summer TNM: U1600 San Francisco (2.44), 04.06.2016

1.e4 c5 2.Nf3 e6 3.c3 Nc6 4.d4 cxd4 5.cxd4 d5 6.e5 Bb4+ 7.Nc3 Nge7 8.a3 Ba5 9.Bb5 0-0 10.0-0 a6 11.Bd3 h6 12.Bd2 Bb6 13.Ne2 Nf5 14.Bxf5 exf5 15.Rc1 Ba7 16.Bc3 Re8 17.Re1 f6 18.Nf4 fxe5 19.Nxe5 Bb8 20.Qb3 Be6 21.Qxb7 Bxe5 22.dxe5 d4 23.Qxc6 Kf7 24.Bd2 g5 25.Nxe6 Rxe6 26.Qc7+ Qe7 27.Qxe7+ Kxe7 28.g3 Rd8 29.Bb4+ Ke8 30.Bd6 Rb8 31.Bxb8 1-0

(42) Tobiason,Wolfgang (1380) - Mayer,Carson [C02]
Mechanics' Summer TNM: U1600 San Francisco (2.45), 04.06.2016
[de Firmian,Nick]

1.e4 e6 2.d4 d5 3.e5 Nc6 4.Nf3 Nge7 5.c3 Nf5 6.Bd3 Be7 7.0-0 0-0 8.Bf4 b6 9.Qc2 Bb7 10.Bxf5 exf5 11.Qxf5 Bc8 12.Qd3 Qd7 13.Bg5 Bxg5 14.Nxg5 g6 15.f4 Qg4 16.h3 Bf5 17.Qb5 Qg3 18.Qxc6 h6 19.Qf6 hxg5 20.Qxg5 Qe3+ 21.Kh2 Qe2 22.Na3 Kg7 23.Qf6+ Kh7 24.Qh4+ Kg7 25.Qf2 Qe4 26.Rad1 Be6 27.g4 [27.Rfe1 Qf5 28.g4] 27...g5 28.f5 Bd7 29.Qd2 Qf4+ 30.Rxf4 gxf4 31.Qxf4 Rh8 32.f6+ Kf8 33.Qg5 Rg8 34.Qh6+ Ke8 35.Qh7 1-0

(43) Cendejas,Jon (1068) - Badgett,James (1119) [B30]
Mechanics' Summer TNM: U1600 San Francisco (2.46), 04.06.2016

1.e4 c5 2.Nf3 g6 3.Nc3 Bg7 4.Bc4 Nc6 5.d3 e6 6.Be3 b6 7.d4 cxd4 8.Nxd4 Nge7 9.Qd2 Qc7 10.0-0-0 Nxd4 11.Bxd4 e5 12.Nb5 Qc6 13.Be3 0-0 14.Qb4 Qxe4 15.Bxf7+ Rxf7 16.Qxe4 Ba6 1-0

(44) Gulbis,Andrew - Ballantyne,Andrew [D21]
Mechanics' Summer TNM: U1600 San Francisco (2.47), 04.06.2016

1.d4 d5 2.c4 dxc4 3.Nf3 c5 4.Nc3 cxd4 5.Nxd4 e5 6.Nf3 Qxd1+ 7.Nxd1 e4 8.Nd2 Bb4 9.e3 c3 10.bxc3 Bc5 11.Nxe4 Be7 12.Bb5+ Nd7 13.0-0 Ngf6 14.Nxf6+ Bxf6 15.Bb2 0-0 16.Ba3 Re8 17.Rc1 Re5 18.c4 a6 19.Ba4 b5 20.Bc2 bxc4 21.Ba4 Nb6 22.Bc6 Ra7 23.Bb2 Rc5 24.Be4 Bxb2 25.Nxb2 Re7 26.Bc2 c3 27.Nd3 Ra5 28.Nb4 Re4 29.Bxe4 Na4 30.Rfd1 g6 31.Rd8+ Kg7 32.Rxc8 f5 33.Bd5 Rxd5 34.Nxd5 1-0

(45) Cowgill,Jackie (1005) - Yu,Prescott (1212) [D94]
Mechanics' Summer TNM: U1600 San Francisco (2.48), 04.06.2016

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 g6 6.Nf3 Bg7 7.cxd5 0-0 8.Be2 Nbd7 9.0-0 Nb6 10.Be3 Nbxd5 11.Nxd5 Nxd5 12.Qd2 Bd7 13.Bh6 Qb6 14.Bxg7 Kxg7 15.a3 Rac8 16.Rfe1 Rc7 17.Rac1 Rfc8 18.Rxc7 Rxc7 19.h3 Ba4 20.Bd1 Bb5 21.a4 Bc4 22.b3 Bxb3 23.a5 Qb5 24.Bxb3 Qxb3 25.Qg5 Nf6 26.h4 h6 27.Qe5 Rd7 28.h5 Qd5 29.hxg6 fxg6 30.Qxd5 Nxd5 31.g3 Rc7 32.Re5 Nb4 33.Rb5 Nc6 34.d5 Nd8 35.Kg2 a6 36.Rb6 Rc5 37.d6 exd6 38.Rxd6 Nf7 39.Rd7 Rb5 40.Nd4 Rb2 41.Ne6+ Kf6 42.Nc5 b6 43.axb6 Rxb6 44.Rb7 Rxb7 45.Nxb7 Ne5 46.Nc5 a5 47.f4 Nc4 48.Na4 Kf5 49.Kf3 Nd2+ 50.Kg2 Kg4 51.Nc3 h5 52.Kf2 Nf1 53.Kxf1 Kxg3 54.Ne2+ Kf3 55.f5 0-1

(46) Otterbach,Renate (1212) - Dunlap,Steven (1027) [B23]
Mechanics' Summer TNM: U1600 San Francisco (2.49), 04.06.2016
[de Firmian,Nick]

1.e4 c5 2.Nc3 e6 3.f4 Ne7 4.Nf3 d5 5.Bb5+ Bd7 6.Bxd7+ Qxd7 7.d3 d4 8.Ne2 g6 9.0-0 f5 10.e5 Nd5 11.Qe1 Nc6 12.c3 Ne3 13.Bxe3 dxe3 14.d4 cxd4 15.Nexd4 Nxd4 16.cxd4 Rc8 17.Qxe3 Qb5 18.Qb3 Qxb3 19.axb3 Rc2 20.Rxa7 b5 21.Rb7 b4 22.Ra1 Rc8 23.Ng5 Be7 24.Nxe6 Kf7 25.Ng5+ Ke8 26.Nf3 Kf7 27.Nd2 Ke6 28.Ra6+ Kf7 29.e6+? [29.Nc4 would wrap it up] 29...Kf6 30.Nc4 Ra8 31.Rxa8 Rxa8 32.Rb6 Rd8! 33.Kf1 Rxd4 34.Ne5 Rxf4+ 35.Nf3 g5 36.Ke2 Re4+ 37.Kd3 Rxe6 38.Rb8 Bc5 39.Kc4 Rc6 40.Kb5 Bd6 41.Kxc6 Bxb8 42.Kc5 g4 43.Nd4 Be5 44.Nc6 Bxh2 A tough defense by Steven held the draw. 1/2-1/2

(47) Dubensky,Walt (1154) - Sullivan,George (979) [B50]
Mechanics' Summer TNM: U1600 San Francisco (2.50), 04.06.2016

1.e4 c5 2.Nc3 d6 3.Nf3 Nf6 4.Bc4 Nc6 5.Ng5 e6 6.d3 a6 7.a4 b6 8.0-0 e5 9.Nxf7 Qd7 10.Nxh8 Bb7 11.Bf7+ Kd8 12.Bg5 Be7 13.Bxf6 Bxf6 14.Nd5 Bg5 15.Nxb6 Qe7 16.Nxa8 Qf8 17.Nb6 Qxh8 18.Qg4 Nb8 19.Qxg5+ Kc7 20.a5 Qf8 21.Bd5 Bxd5 22.Nxd5+ Kc6 23.f4 h6 24.Qe7 Nd7 25.fxe5 Qxe7 26.Nxe7+ Kc7 27.e6 Ne5 28.Nd5+ Kc6 29.e7 Kd7 30.c3 Ng6 31.Rf7 Nxe7 32.Rxe7+ Kc6 33.c4 1-0

(48) Thibault,William (1062) - Serra,Owen (739) [C27]
Mechanics' Summer TNM: U1600 San Francisco (2.51), 04.06.2016

1.e4 e5 2.Bc4 Nf6 3.Nc3 Bc5 4.d3 0-0 5.Nf3 d6 6.0-0 h6 7.Re1 Bg4 8.Na4 Nc6 9.Nxc5 dxc5 10.c3 Re8 11.Be3 b6 12.Qa4 Qd6 13.Nh4 Na5 14.f3 Be6 15.Bxe6 Rxe6 16.Nf5 Qxd3 17.Red1 Qe2 18.Rd2 Qc4 19.Qc2 Nc6 20.b3 Qa6 21.Rad1 Ree8 22.g4 Kh7 23.g5 hxg5 24.Bxg5 Nh5 25.Rd7 Rf8 26.Qg2 g6 27.Nh4 Nf4 28.Bxf4 exf4 29.Qxg6+ Kh8 30.Qf6+ Kg8 31.Kh1 Ne7 32.Rxe7 Qc8 33.Rg1+ Kh7 34.Qg7# 1-0

(49) Wilson,Jijo - Robertson,Wade (1042) [C15]
Mechanics' Summer TNM: U1600 San Francisco (2.52), 04.06.2016
[de Firmian,Nick]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.exd5 Bxc3+ 5.bxc3 exd5 6.Qf3 Nf6 7.c4 dxc4 8.Qe3+ Be6 9.Bxc4 Nd5 10.Qb3 b6 11.Ba3 Nc6 12.Nf3 Na5 13.Qa4+ Bd7 14.Bb5 c6 15.0-0 Qf6 16.Rfe1+ Kd8 17.c4 cxb5 18.Qc2 Nxc4 19.Bc1 Re8 20.Bg5 Rxe1+ 21.Rxe1 g6 22.Bxf6+ Nxf6 23.Qe2 Kc7 24.Ne5 Re8 25.Qf3 Re6 26.h3 Bc6 27.Qc3 Nd5 28.Qc1 Nxe5 29.Rxe5 Rd6 30.f4 Nb4 31.Re7+ Rd7 32.Rxd7+ Kxd7 33.Qa3 a5 34.Kf2 Bd5 35.Qg3 Bxa2 36.Qg4+ Be6 37.Qg5 Nd5 38.g3 a4 39.Ke2 a3 40.f5 Bxf5 41.Qc1 b4 42.Qc4 Kd6 43.g4 Bb1 44.Qa6 a2 45.Kd2 b3 46.Kc1 Bc2 47.g5 Ke6 48.Kb2 Kf5 49.Qe2 Be4 Something might be wrong. Both scoresheets say "0-1" and are signed. But White has MATE IN ONE. 0-1

(50) Ahrens,Richard (1040) - Anderson,David [D20]
Mechanics' Summer TNM: U1600 San Francisco (2.53), 04.06.2016
[de Firmian,Nick]

1.d4 d5 2.c4 dxc4 3.Nc3 a6 4.e3 b5 5.Qf3?! [5.a4! b4 6.Bxc4!] 5...Ra7 6.a4 b4 [6...Bb7!?; 6...Rb7!?] 7.Bxc4!


7...bxc3?? You don't have to take a piece just because you can! [7...e6!] 8.Qxf7+? It's easy to overlook that this crushing move is a mistake! [8.Bxf7+ Kd7 9.Qd5#] 8...Kd7 9.Be6+ Kd6 10.d5! Bxe6?! 11.Qxe6+ Kc5 12.bxc3 [12.b4+! is a few moves faster -- *and* you get to play Qa1+ (!): 12...Kxb4 13.Rb1+ Ka5 14.Qe5! Qd6 15.Qxc3+ Kxa4 16.Qa1+ Qa3 17.Qxa3#] 12...Rb7 (hastens the end) 13.Ba3+ Kc4 14.Qe4+ [14.d6+!] 14...Kb3 Black resigned; note that ALL the mates in 3 and 4 are *not* check on the first move: if you give check it will take longer. [14...Kb3 15.-- mate in three: (15.Ne2; 15.Qd3) ; 14...Kb3 15.-- mate in four: (15.Nf3; 15.Bc5; 15.Bb4; 15.Bc1; 15.c4) ] 1-0


(51) Abdi,Mehron (1136) - Rousso,Gregory [B40]
Mechanics' Summer TNM: U1600 San Francisco (2.54), 04.06.2016

1.e4 e6 2.Nc3 d5 3.Nf3 c5 4.Bb5+ Bd7 5.exd5 Bxb5 6.dxe6 Bc4 7.exf7+ Bxf7 8.0-0 Be7 9.Ne5 Nf6 10.Nxf7 Kxf7 11.Qf3 Nc6 12.d3 Rf8 13.Ne4 Kg8 14.Be3 Nd5 15.Qg3 Nd4 16.Bh6 Ne2+ 0-1

(52) Malykin,Erika (1637) - Riese,Kayven (1900) [A84]
Mechanics' Summer TNM: 1600-1999 San Francisco (2), 04.06.2019
[de Firmian,Nick]

1.d4 e6 2.c4 f5 3.Nf3 Nf6 4.Bf4 b6 5.Nbd2 Bb4 6.a3 Bxd2+ 7.Bxd2 Bb7 8.Rc1 Ne4 9.e3 d6 10.Bd3 Nd7


The opening has transposed into a position like a Bogo/Nimzo-Indian. Chances are even. 11.b4 c5 12.Bc3 Qe7 13.dxc5 bxc5 14.Bxe4 Bxe4 Now we have a bishops of opposite color position. Both sides have attacking chances. 15.0-0 0-0 16.Nd2 Bc6 17.f3 e5 18.Qe2 Rab8 19.b5 Ba8 20.Nb3 e4? This opens up White's bishop's diagonal even as it closes in Black's. 21.f4 Nb6 22.Rf2 Rbc8 23.g4 Qe6?! 24.gxf5 Rxf5 25.Rg2 g6 26.Ba1!


Black has problems on the long diagonal. 26...d5 27.cxd5 Rxd5 28.Qb2 Kf8 29.Qg7+ Ke8 30.Qh8+ Kd7 31.Qxh7+ Qe7 32.Qxg6 Rd3 33.Qf5+


Black's position has collapsed. 1-0


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