Chess Room Newsletter #877 | Mechanics' Institute

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Chess Room Newsletter #877

Gens Una Sumus!

Newsletter #877

July 12, 2019

By Abel Talamantez

Table of Content


FM Kyron Griffith wins rematch of epic Addison Memorial battle against FM Ezra Chambers to take share of the SummerTNM lead.

FM Kyron Griffith (left) and FM Ezra Chambers go deep into the tank during their board 1 battle Tuesday night

Griffith and Chambers gave commentator FM Paul Whitehead a break in the broadcast as they broke down their game for the audience

The best have risen to the top, and FM Kyron Griffith has shown he has not lost form since his Addison Memorial victory, defeating FM Ezra Chambers to take a share of the Championship section lead with 5.5/7. 

FM Andy Lee is the other player sharing the lead with Griffith after he claimed a forfeit win against NM Conrado Diaz on board 2. Although this was an unfortunate way to score a point, the public did benefit from the result as he sat in with Paul Whitehead and partnered with him for the evenings commentary. 

This sets up a championship battle next Tuesday night as Griffith and Lee will square off for the summer TNM title. FM Chambers, IM Elliott Winslow and Kevin Kuczek are at 5/7 and can still catch up for a share of the championship. Next week is championship Tuesday and we will bring you the action as always, live from downtown San Francisco!

In the A/B section, Mansoor Mohammed tightened his grip on the lead with a victory over Gaziz Makhanov. He is the sole leader at 6/7 and in control of his destiny.

Mansoor Mohammed (left) can win the A/B title next week after a great performance against Makhanov

Right behind him is Ella Papanek and Alexander Huberts at 5.5/7. 

In the under 1600 section, Gregory Rousso and Romeo Barreyro are tied at 6/7 for the lead. They played each other to a draw in round 6, so they will each be watching each other’s game next week. John Chan is only a half point behind at 5.5, with many players at 5. It will be a wild finish in that section with lots of action.

Standings and results can be found by following this link:

You can follow our broadcasts and watch previous broadcasts on our Twitch channel and YouTube channel:

Tournament Director's Corner
by Abel Talamantez

During the 7thround of the Summer TNM, two players in the championship section had not yet showed up for their game. We had not received word that either was not going to make it, and they were both players that we would never think would be no shows. After 20 minutes, the first player showed up. The 2ndplayer showed up 10 minutes after that. How did the TD handle the time?

USCF Rule 16K states:

16K. Both players late. If both players arrive late, the first to arrive must split the elapsed time before starting the opponent’s clock. For example, if the first player to arrive is 40 minutes late, the clocks should be set to reflect 20 minutes of elapsed time on each side. See also 13F, Late arrival by both players; and 13D, Late arrival for game.

I had started whites clock at 6:30 and the first player arrived at 6:50. What I did was I used the clock to figure the elapsed time, then reset the clocks, deducting 10 minutes from each side (20 minutes total late) and the player made his move and started the clock. The other player arrived approximately 10 minutes later and they played their game.

Good Luck Rui!!

TNM player Rui Yang Yan requested a bye for rounds 7 and 8 of the TNM for a better reason than most. She is currently playing in the 2019 U.S. Junior Girls Championship! At age 12, she is one of the youngest competitors in the field, and currently ranked #1 in the country for her age. I took the picture below after her final round victory in the 2018 National Online Championship, which clinched her the championship in her age group. It is one of my favorite pictures. We wish her the best of luck in St. Louis!!

Also competing in this event is Bay Area phenom Rochelle Wu, who also just recently competed in the U.S. Cadet Invitational as the only girl in the field. 

We are honored and happy to support and promote our local talent, and these two girls will be the ones many others will look up to over the next few years and beyond. Best of luck to our homegrown players and we thank them for representing our community.

Grandma Visits the MI Chess Club!

Jayden Xu's grandma, Xiaoping Yu, is 70 years old. She decided to visit Mechanics Institute on Tuesday July 9th to watch her grandson play in the TNM prior to heading to the SFO to catch her flight to China at 1:30am.
You know that a family loves chess when grandma visits the chess club! wink


Formula 1 Racing and Chess

What do Formula 1 racing and chess have in common?? Check out this great article by WIM Alexey Root from Chessbase:

For those thrill seekers inclined towards the strategy, calculation, and adrenaline of Formula 1, the British GP event is this Sunday 2PM local time (early Sunday morning PST).

Formula 1 rivals Lewis Hamilton and Nico Rosberg sit down to face off over the chessboard.

UC Berkeley student Sikhar Sachdev has created this very cool chess poster. Perhaps one day we can create a Mechanics’ Institute Periodic Table of Players? For more info on this poster and others, please visit:


Tony's Teasers

Last week's problem:
1.g6 Red3 2.Qd1 Rxd1 3.g7 mate is one possible solution.

This week's problem:
Mate-in-3 by Henry Shinkman from 1892




Friendly Rivalries, Part 13

Familiar Rivals and Unfamiliar Strangers

By FM Paul Whitehead

The late 1970’s were a crucial time in my development as a chess player, and I finally became a master at the age of 16 in 1977.  I had one published rating of 2260, and then went over 2300 - never to return, it seems. I had finally figured a few things out, the foremost being: always play aggressively, and always play to win. I was lucky to have strong players to knock heads with in the San Francisco Bay Area, and playing in the U.S. Junior Closed twice, in 1977 and 1978, and at Lone Pine twice, in 1978 and 1979, were invaluable experiences for me, important testing grounds for my skill and talent.

I’ve already shown a bunch of games in past articles from those days, and here’s a few more: some memorable wins over familiar rivals and unfamiliar strangers from those days, but tough players all!

(1) Tisdall,Jonathan D (2375) - Whitehead,Paul A [E94]
USA-ch Juniors Denver (6), 1977

Jonathan Tisdall became a Grandmaster in 1993, and this was our only encounter. Black saddled White with a weak pawn with 25...Nxa4, then won it fair and square a few moves later. A long struggle ensued, and eventually White cracked after Black's King joined in.  1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 0-0 6.Nf3 e5 7.0-0 Nbd7 8.Be3 Ng4 9.Bg5 f6 10.Bh4 Nh6

11.Qd2 Nf7 12.Rad1 c6 13.h3 a5 14.Qc2 Qe8 15.Rfe1 Nh6 16.dxe5 dxe5 17.a3 Qe7 18.Bf1 Nf7 19.Na4 Nc5 20.Nb6 Ra7

21.b3 Na6 22.Ra1 Be6 23.Qd2 Nc5 24.Qe3 Ra6 25.Na4 Nxa4 26.bxa4 c5 27.Rab1 b6 28.Rb2 Bd7 29.Reb1 Rb8 30.Ne1 Nd6

31.Qd2 Bxa4 32.f3 Qc7 33.Bf2 Rd8 34.Qc3 Nc8 35.Rd2 Rxd2 36.Qxd2 Ne7 37.Be2 Ra8 38.Qb2 Rb8 39.Nd3 Nc6 40.Bd1 Bxd1

41.Rxd1 Rd8 42.Qb3 Nd4 43.Bxd4 Rxd4 44.Nf2 h5 45.Rb1 Qd6 46.Rd1 Bh6 47.Rxd4 Qxd4 48.Kf1 Be3 49.Nd1 Bc1 50.Nf2 Kg7 

51.a4 Be3 52.Nd3 Qa1+ 53.Ke2 Bd4 54.Ne1 Qc1 55.Qd3 Kf7 56.Qb3 f5 57.Qd3 Kf6 58.Qb3 Kg5 59.g3 h4 60.gxh4+ Kxh4

61.exf5 gxf5 62.Qxb6 Qe3+ 63.Kd1 Kxh3 64.Qe6 Qg5 65.Qd7 Kg3 66.Qd5 Kf2 67.Nd3+ Ke3 68.Ne1 Kf2 69.Nd3+ Kf1 70.Qd7 Qg2 71.Qxf5 Be3



(2) Whitehead,Paul A (2332) - Watson,John L (2319) [A04]
Berkeley May Day, 1977

John Watson is a well known International Master and author. I believe this is our only game. Black makes some risky moves (8...Bf6 and 13...g5) in an attempt to mix it up, but White plays positively, and when he uncorks 24.Rxe6! gaining a pawn and the 2 bishops the end is not far off. Black then blunders a piece in time-trouble. 1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.g3 g6 5.Bg2 Bg7

6.0-0 Nge7 7.c3 e5 8.Nh4 Bf6 9.f4 exf4 10.Bxf4 d6

11.Nd2 Be6 12.Ndf3 h6 13.Be3 g5 14.Nd2 gxh4 15.Rxf6 hxg3

16.hxg3 Qd7 17.d4 cxd4 18.cxd4 d5 19.Rc1 Rg8 20.Bf2 0-0-0

21.Qa4 Kb8 22.Nb3 dxe4 23.Nc5 Qc7 24.Rxe6 fxe6 25.Nxe6 Qb6

26.Nxd8 Rxd8 27.Bxe4 Nd5 28.Rc5 Nce7 29.Qc2 Qe6 30.a3 Qg4

31.Bg2 Ka8 32.Qe4 Qd1+ 33.Qe1 Qh5 34.Qxe7



(3) Cleghorn,Peter (2330) - Whitehead,Paul A (2355) [B44]
San Francisco Bagby San Francisco (6), 1978

Peter Cleghorn came down from Alaska and became a fixture in the S.F. Bay Area chess scene for years, playing once at Lone Pine and in several Northern California State Championships. We played a few times, with the honors more or less split if I recall. Here Peter doesn't seem to understand the nuances of the opening and becomes too weak on the dark squares. Finally he collapses on the 40th move, but it was all over anyway. 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nb5 d6 6.c4 Nf6 7.N1c3 a6 8.Na3 Be7 9.Be2 0-0 10.Be3 b6

11.0-0 Bb7 12.f3 Re8 13.Na4 Nd7 14.Nc2 Rc8 15.Bf2 Nce5 16.Ne3 Qc7 17.Rc1 Qb8 18.Nc3 Ba8 19.Qd2 Nf6 20.Rfd1 Red8

21.b3 Ng6 22.Bf1 Rc7 23.Qb2 Rcd7 24.Rc2 h5 25.Rcd2 h4 26.h3 Nh5 27.Ng4 Bg5 28.Be3 Bxe3+ 29.Nxe3 Qa7 30.Kf2 Qc7

31.Ne2 Bc6 32.Qc3 Rb8 33.Qb4 a5 34.Qa3 Rbd8 35.Nd4 Ng3 36.Nxc6 Qxc6 37.Nc2 d5 38.cxd5 exd5 39.Nd4 Qf6 40.Kg1 dxe4



(4) Whitehead,Paul A (2320) - Verduga Zavala,Denis (2355) [B96]
Lone Pine op Lone Pine (9), 1978

At Lone Pine in 1978 I scored 4-5 against some tough players, but it was on the whole a disapointing result. However, this last round win against Denis Verduga, an International Master from Ecuador, did a lot to lift my spirits. In a topical (at the time) variation of the Najdorf both players err, but Black erred last, and was soon knocked out. 1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.Nc3 cxd4 5.Nxd4 a6

6.Bg5 e6 7.f4 b5 8.e5 dxe5 9.fxe5 Qc7 10.Qe2 Nfd7

11.0-0-0 Bb7 12.Nxe6 fxe6 13.Qg4 Qxe5 14.Bd3 Be7 15.Bxe7 Kxe7

16.Rhe1 h5 17.Qb4+ Qc5 18.Qh4+ g5 [18...Nf6 19.Qg3 Rg8 20.Re5 Qb6 21.Bf5 Nbd7 22.Rxe6+ Qxe6 23.Bxe6 Kxe6 24.Qd6+ Kf7 25.Qc7 Bc8 26.Nd5 Nxd5 27.Rxd5 Re8 28.Rxd7+ Bxd7 29.Qxd7+ Kg6 1/2-1/2 (29) Olafsson,F (2530)-Polugaevsky,L (2620) Reykjavik 1978] 19.Qg3 [19.Qh3 Rh6 20.Be4 Nc6 21.Bd5 Nd8 22.Qg3 g4 23.Ne4 Qb6 24.Qh4+ Nf6 25.Bxb7 Nxb7 26.Qg5 Rf8 27.Qxh6 Nxe4 28.Rxe4 Nc5 29.Qg5+ Rf6 30.Re5 Na4 31.Rf1 1-0 (31) Garcia,G (2520)-Van Wely,L (2580) Newark 1995] 19...Rf8 20.Be4 h4

21.Qh3 Ra7 22.Bxb7 Rxb7 23.Qxe6+ Kd8 24.Rd6?! [24.Ne4!+/-] 24...Rc7 25.Rd5 Qf2

26.Rd2 Qf7 27.Qe5 Kc8 28.Qxg5 Rxc3!? 29.bxc3 Qxa2-/+ 30.Rde2 Nb6?

In time-trouble Black drops a rook.  [30...Nc6 was the way to go. Now it's all over.] 31.Qc5+ Kb7 32.Qxf8 N8d7 33.Re7 Qa3+ 34.Kd1



(5) Harari,Zaki - Whitehead,Paul A (2365) [E97]
Cal Masters Berkeley (6), 1979

Zaki Harari lived in the S.F. Bay Area for awhile, and was a dangerous opponent. White's 10.f4?! was super aggressive if not neccessarily good, and the game remained very sharp to the very end. Black finally went on a long King-Hunt, culminating in the brilliant and quiet 43...Kf7!!  1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.Nc3 0-0 5.e4 d6 6.Be2 e5 7.0-0 Nc6 8.d5 Ne7 9.Nd2 c5 10.f4 exf4

11.Nf3 Ng4 12.Bxf4 f5 13.Qd2 fxe4 14.Nxe4 Nf5 15.h3 Nf6 16.Nc3 Nh5 17.Bg5 Qa5 18.g4 Nfg3 19.gxh5 Nxf1 20.Rxf1 Bxh3

21.Rf2 Rae8 22.hxg6 hxg6 23.Bh6 Qc7 24.Bxg7 Qxg7 25.Rh2 Bd7 26.Rg2 Qf6 27.Rg3 Kg7 28.Bd3 Bf5 29.Bxf5 Qxf5 30.Nb5 Qb1+

31.Kg2 Rh8 32.Rh3 Rxh3 33.Kxh3 Qf1+ 34.Kg3 Re2 35.Qc3+ Kg8 36.Nxd6 Qg2+ 37.Kf4 g5+ 38.Kf5 Qh3+ 39.Kg6 Qh7+ 40.Kxg5 Rg2+

41.Kf4 Qh6+ 42.Ke5 Re2+ 43.Ne4 Kf7



(6) Blocker,Calvin (2435) - Whitehead,Paul A (2365) [A26]
Lone Pine op Lone Pine (8), 1979

Calvin Blocker is an International Master (1981) from Cleveland. This is our only game, a tough fight from Lone Pine 1979, where I scored a very disappointing 3-6. Calvin might have won this game if he'd found 35.Nd5! instead of 35.Ra3?? which lost on the spot. 1.c4 g6 2.Nc3 Bg7 3.g3 d6 4.Bg2 e5 5.d3 Nc6

6.Nf3 f5 7.0-0 Nf6 8.Rb1 a5 9.a3 0-0 10.b4 axb4

11.axb4 h6 12.Ne1 Ne7 13.Qb3 Kh8 14.b5 g5 15.e3 f4

16.Ne2 fxg3 17.fxg3 Qe8 18.Nc3 Qh5 19.e4 Bh3 20.Qc2 Ng4

21.Nf3 Rxf3 22.Bxf3 Bxf1 23.Bxg4 Qxg4 24.Kxf1 Qf3+ 25.Kg1 Rf8 Diagram 

26.Qe2 g4 27.Rb3 Qf7 28.Ra3 Ng6 29.Nd1 h5 30.Bd2 Qe7

31.Ra7 Nf4!? 32.gxf4 exf4 33.Bc3 Bxc3 34.Nxc3 Qe5 35.Ra3 Qc5+



Scholastic Corner
by Judit Sztaray

Free Chess Camp for Kids
Aug 12-16, 12PM-4PM @ MI

Mark your calendars and bring your kids to another chess camp at the Mechanics' Chess Club!
Camp is free and open for all ages between Age 6-18, and all levels from absolute beginner to advanced.
We'll have two special instructors this time: NM Isaiah Kim is one of our regular TNM player he is looking forward to this unique opportunity to coach kids. Coach David is also returning with his fun lectures and engaging classes.
Camp is between noon and 4PM, so come with belly full of lunch and bring your snack for some mid-way snack breaks!
Camp capacity is 20 students, so while camp is free due to the generous donations of our supporters, but registration is neccessary to secure your spot!
More information, please visit:
Register via the following link:

Reminder that we still have a few spot left for our Intermediate Chess Camp open for adults and advanced youth Camp is July 22-26, 11AM - 4PM.
More information, please visit:
Register via the following link:​
For special prorating, and further questions, pleae email us or call!

Any questions? Email [email protected].

Chess Class at your Child's School

We are gearing up for the 2019-20 school year and adding new schools to our list of schools we serve. If you woud like us to coach at your child's school, and provide an after school chess class, please reach out to us so we can start the planning process, and get everyting ready for the start of the school year!
​We have different proposals and we make sure to find the best possible fit for the students, school, and the community.
Email us at [email protected] and we'll get started!

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

This week: Anatoly Karpov

Karpov was born on May 23, 1951, in Zlatoust in the Urals region of the Russian, He learned to play chess at the age of 4 and was a great talent from an early age. A product of the Soviet School of Chess, he was accepted to Botvinnik’s prestigious chess school, though famously Botvinnik said, "The boy does not have a clue about chess, and there's no future at all for him in this profession.” Nonetheless Karpov became World Junior Champion at 18 years old, then next year won an international tournament in Stockholm with 10/11 followed by a great victory at the Alekhine Memorial in Moscow. He qualified for the Candidates Tournament in 1973 and upset the old guard by winning three matches to challenge for the World Championship. Bobby Fischer refused to defend his title in 1975, making Karpov the official World Champion. Karpov silenced any doubters over the next ten years by winning almost every tournament (and every match) he played in. 

Karpov’s style is principled positional chess, accented by an underlying aggression that many observers  miss. Karpov would maneuver in small ways, then suddenly his opponent has nowhere to go. He was famous for taking the important squares on the board and for his superb endgame skill.

A quote from Karpov explains his chess philosophy - “Let us say that a game may be continued in two ways: one of them is a beautiful tactical blow that gives rise to variations that don't yield to precise calculations; the other is clear positional pressure that leads to an endgame with microscopic chances of victory. I would choose the latter without thinking twice. If the opponent offers keen play I don't object; but in such cases I get less satisfaction, even if I win, than from a game conducted according to all the rules of strategy with its ruthless logic.”

His performance Linares 1994, a super tournament of all the world’s elite, is often called the best performance of all time as he scored 11/13.  Karpov visited the Mechanics’ Institute club in 2000. The above picture is him in the club with trustee Mark Pinto and Ewelina Krubnik (who is now grown up and teaches the women’s chess class on Sundays).


(1) Karpov,Anatoly - Korchnoi,Victor
Candidates Final, 1974

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6

Korchnoi chooses the aggressive Dragon Variation against his young opponent, anticipating a sharp tactical middle game. 6.Be3 Bg7 7.f3 Nc6 8.Qd2 0-0 9.Bc4

Karpov doesn't back down and plays the challenging Yugoslav Attack with castling on opposite wings. 9...Bd7 10.h4 Rc8 11.Bb3 Ne5 12.0-0-0

12...Nc4 Nowadays the theorectically preferred line is 12...h5 - the Soltis Variation (named after New York grandmaster Andy Soltis. That move slightly slows the white attack on the kingside. 13.Bxc4 Rxc4 14.h5 Nxh5 15.g4 Nf6

16.Nde2! Karpov's "safe" move holds the queenside. It is better than the older line 16. Bh6 Bxh6 17. Qxh6 Rxc3! when black gains good counterplay against the white king. 16...Qa5 17.Bh6 Bxh6 18.Qxh6 Rfc8 19.Rd3 Another typical Karpov move, paying close attention to defense before proceeding with the attack. 19...R4c5?! 

20.g5! Rxg5 21.Rd5!

Suddenly White has a ferocious attack for the two pawns. Korchnoi, a great defender, tries his best to escape. 21...Rxd5 22.Nxd5 Re8 23.Nef4 Bc6

24.e5!! The scintillating blow is crushing. 24...dxe5 25. Nxf6+ exf6 26. Nh5 is soon mate. 24...Bxd5 25.exf6 exf6 26.Qxh7+ Kf8 27.Qh8+

Korchnoi resigned as 27...Ke7 28. Nxd5+ Qxd5+ 29. Re1+ wins. 1-0


(3) Karpov,Anatoly - Shirov,Alexey
Biel, 1992

1.d4 "I like 1. e4 best, but my results have been slightly better with 1. d4." - Karpov 1...d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Qc2 Bd6 7.Be2 0-0 8.0-0

A typical queen's pawn, Slav opening. Karpov has always relied on his middle game skills rather than the super openings that Kasparov or Fischer would produce. 8...dxc4 9.Bxc4 b5 10.Be2 Re8 11.Rd1 Qc7 12.b3 e5 13.h3 Bb7 14.Bb2 a6 15.dxe5 Nxe5 16.a4

White has just a modest edge from the opening, but the position is full of possibilites. 16...Rad8?! (16...b4) 17.Ng5! Qe7 18.Nce4 Nxe4 19.Nxe4 Bb4 20.Ng3 f6?!

21.Bxe5! This is a classic Karpov move. It is unorthodox in that it gives up the two bishops, but it has a venomous point that Black becomes weak on the kingside light squares. 21...Qxe5 22.Bd3 h6 23.Bg6 Rf8 24.Nf5

One starts to feel the strong grip of white square control. Black is in trouble. 24...c5?! Good advice is hard to find here, but this allows White to invade. 24...Kh8 would limit the damage. 25.axb5 axb5 26.Ra7! Qc7 27.Nh4

Black cannot defend anymore. Note how the black bishop on b4 is out of play at this critical moment. 27...Rxd1+ 28.Qxd1 Ra8

29.Qg4! Qc6 30.Rxb7! Qxb7 31.Qe6+ Kh8 32.Be4

Shirov resigned as Ng6+ will be a killer. In this game Karpov showed fantastic control of the squares. 1-0


(2) Karpov,Anatoly - Spassky,Boris
Canditates Semifinal, 1974

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2

This simple move was always Karpov's preference against the Sicilian. 6...Be7 7.0-0 0-0 8.f4 Nc6 9.Be3 Bd7 10.Nb3!

This retreat keeps Black cramped. 10...a5?! 11.a4 Nb4 12.Bf3 Bc6 13.Nd4 g6 14.Rf2! e5?! 15.Nxc6 bxc6 16.fxe5 dxe5 17.Qf1 Qc8

Black's position is a little lose, but could become active if White is not careful. 18.h3 Nd7 19.Bg4 h5 20.Bxd7 Qxd7 21.Qc4 Bh4 22.Rd2 Qe7 23.Rf1 Rfd8

At first site this looks like a normal position between two great players. Both sides are completely developed and seem to control equal amounts of the board. Now follows a classic, very deep Karpov move which highlights the flaws of the black set-up. 24.Nb1!! Qb7 25.Kh2 Kg7 26.c3 Na6 27.Re2

This fantastic manuever has left White in control. The black knight has been driven from its great outpost of b4. The white knight is calmly headed to the kingside after which all the white pieces have their ideal spots. 27...Rf8 28.Nd2 Bd8 29.Nf3 f6 30.Rd2

White's set-up is a picture of harmony now. Black cannot stop the coming invasion. 30...Be7 31.Qe6 Rad8 32.Rxd8 Bxd8 On 32...Rxd8 33. Nxe5! 33.Rd1 Nb8 34.Bc5 Rh8


Spassky resigned as 35...Rxd8 36. Be7 finishes things. 1-0

2019 Summer TNM Games Round 7

Annotations by GM Nick de Firmian and IM Elliott Winslow

(1) Griffith,Kyron (2455) - Chambers,Ezra (2308) [B81]
MI Summer TNM: 2000+ San Francisco (7.1), 09.07.2019
[de Firmian,Nick]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 h6 7.h4 Nc6 8.Rg1 d5!? 9.Bb5 If Ezra was playing this line after having seen the article in the latest New In Chess Yearbook by Lukacs and Hazai (and Duda, who used it to beat Nepomniatchi), he must have been disappointed that 9.Bb5 was only mentioned as covered years ago. They did note that 9.exd5 has a better score, but only because of the older 10...Qxd5. [9.exd5 Nxd5 10.Nxd5 exd5 (10...Qxd5 11.Bg2 Qe5+ 12.Be3 Qh2 13.Kf1) 11.Be3 (11.g5!? hxg5 12.hxg5 g6!? (12...Rh4 13.Be3 Be7 14.Qd2 (14.Bb5) ) ) 11...Qxh4! 0-1 59, Nepomniatchi-Duda, St.Petersburg blitz 2018 (13).] 9...Bd7 [9...Qc7!? 10.exd5 Nxd5 11.Nxd5 exd5 12.Qe2+] 10.exd5 Nxd5 11.Nxd5 exd5 12.Qe2+ [12.Be3 is the most popular move and where all the annotations are, but Black does fine.; 12.g5!?] 12...Qe7?! [12...Be7 13.Be3 (13.Nf5 Bxf5 14.gxf5 Kf8!) 13.Be3 Nxd4 14.Bxd7+ Kxd7 15.Bxd4 Qxe2+ 16.Kxe2 Kc6N [16...f6 17.Rad1 Rc8 18.Bc3 Kc6 19.Rd3 Bc5 20.Rgd1 Rce8+ 21.Kf3 h5 22.Rxd5 hxg4+ 23.Kxg4 Bxf2 24.Rd6+ Kc7 25.Rd7+ Kc8 26.h5 Re3 27.R1d3 Rg3+ 28.Rxg3 Kxd7 29.Rg2 Bc5 30.Re2 b5 31.Bd2 Bd4 32.Bf4 Bc5 33.c3 a6 34.b4 Be7 35.Re3 f5+ 36.Kxf5 Rxh5+ 37.Kg6 Rd5 38.Kxg7 Rf5 39.Re4 Bd6 40.Bxd6 Kxd6 41.c4 Rf2 42.cxb5 axb5 43.Rd4+ Ke6 44.Rd8 Rxa2 45.Rb8 Rg2+ 46.Kh6 1/2-1/2 (46) Polgar,J (2630)-Salov,V (2715) Dos Hermanas 1995; 16...a6; 16...Rg8; 16...h5; 16...Re8+; 16...Rc8] 17.Kd3 Rg8?! It's already a bad ending, but Black should play ...f6 (like Salov) 18.Rae1 Bd6 19.g5 h5 20.f4 g6 21.Rgf1 b6 22.f5 Bg3 23.Bf2 Bd6 24.fxg6 fxg6 25.Bd4 

25...Bg3? [25...Raf8! may hold yet.] 26.Rf6+ Kb5 27.Rg1 Bc7 28.b3 Rae8 29.a4+ Ka6 30.Rf7 Kb7 31.Rgf1 Kb8 32.Rd7 Rd8 33.Rh7 Rdf8 34.Rg7 Rxf1 35.Rxg8+ Kb7 36.Rxg6 Bg3 37.c3 Bxh4 38.Rg8 Rf5 39.g6 Bf6 40.Rf8 1-0


(2) Ivanov,Aleksandr (2187) - Winslow,Elliott (2294) [E46]
MI Summer TNM: 2000+ San Francisco (7.3), 09.07.2019

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Nge2 Be7!? (I was thinking: which of the three continuations was I going to play? And after more or less deciding on 5...d5, if 6.a3, which bishop move was I going to play? I determined, and promptly reached out and grabbed -- the bishop! So now I had to move it. After quite a bit of thought, I played. [5...d5 6.a3 Be7 (6...Bxc3+) ; 5...Re8 6.a3 Bf8; 5...b6; 5...c6!?] 6.Ng3?! Now he's under a sort of psychological pressure. He "has" to show (1) my move is bad (2) he can "get by" without a2-a3 (or else we have just transposed into some line where I was merely retreating my bishop from attack). Meanwhile, he's in a position I rather doubt he'd prepared for! But objectively he should be able to achieve an opening plus. [I was sure that advantage would be found in either 6.d5; or 6.e4] 6...d5 7.cxd5 Nxd5 8.Bd3 c5 9.0-0 Nc6 10.Nxd5 Qxd5 11.Be4 Qd6 12.Qc2 cxd4 13.Rd1 f5 14.Bxc6 Qxc6 15.Qxc6 bxc6 16.exd4 g5 17.Bd2 Rd8 18.Bc3 Ba6 19.Re1 Kf7 20.Nf1 Bf6 21.Rad1 Rd5 22.Ne3 Rd7 23.Nc2 Rad8 24.Ba5 Rc8 25.Bb4 Rb8 26.b3 f4 27.Bc5 Rbd8 28.Nb4 Bb7 29.Nd3 Bxd4 30.Bxd4 Rxd4 31.Ne5+ Kf6 32.Rc1 R8d6 [32...R4d5! 33.Ng4+ (33.Nxc6 R8d6 34.Nb4 (34.Nb8 a5) ) ] 33.h3 [33.h4 gxh4 34.Ng4+ Ke7 35.Ne5 h5 36.Nf3 R4d5] 33...R4d5 [33...h5!] 34.Nc4?! [34.Ng4+ Ke7 35.Ne5 h5 36.h4 gxh4 37.Ng6+ Kf6 38.Nxf4 Rf5=/+] 34...Rd7 35.b4 Ba6 [35...c5! 36.b5 Rc7 37.a4 (37.Na5 Ba8 38.a4 Re5! 39.Red1 Re4) 37...Rd4 38.a5 Bd5 39.b6 axb6 40.Nxb6 Bb7-/+] 36.Na5 [36.a4!?] 36...Bb5 37.Nxc6 [37.a3] 37...a6 [37...h5; 37...Rc7 38.Na5 Rxc1 39.Rxc1 Rd2] 38.Na5 Rd2 39.Ra1 Rb2 [39...Ba4!-/+ 40.Nb3 Bxb3 41.axb3 R7d6 42.Ra5 Rb6] 40.Nb3 Bc4 41.Nc5 Rd4 42.a3 Aha! Giving back the free move (see Black's move 5). 42...Kf5=/+ 43.Ne4??(+) [43.Rac1 h5!? 44.Ne4-/+ -- (44...Kg6; 44...Bd5; 44...Re2) 43...Rxe4 44.Rxe4 Kxe4 45.Rc1 Kd4 46.Rd1+ Bd3 47.Rc1 Rc2 48.Ra1 e5 49.a4 Rb2 50.b5 axb5 51.a5 Rb1+ 52.Rxb1 Bxb1 53.f3 Ba2 54.Kf2 b4 55.Ke2 Kc3 56.Kd1 b3 0-1

(3) Shaw,Tenzing (2287) - Kuczek,Kevin (1984) [A04]
MI Summer TNM: 2000+ San Francisco (7.4), 09.07.2019
[de Firmian,Nick]

1.Nf3 f5 2.d3 Nf6 3.e4 fxe4 4.dxe4 e5 5.Bc4 Winslow: "I glanced over and thought 'the Urusov Gambit?!' before I noticed the missing pawns..." 5...c6 6.0-0 d5 7.exd5 cxd5 8.Bb5+ Bd7 9.Nc3N [9.Bxd7+ Nbxd7 10.Bg5 Bd6 11.Nc3 Qa5 12.Bxf6 Nxf6 13.Nxe5 0-0 14.Ng4 Rad8 15.Nxf6+ Rxf6 16.g3 1/2-1/2 (16) Shao, B-Harwell,J Irvine 2010] 9...Bxb5 10.Nxb5 a6 11.Nc3 e4 12.Ne5 [Stockfish 10: 12.Bg5! exf3 (12...Be7 13.Nd4+-) 13.Bxf6 gxf6 (13...Qxf6?! 14.Re1+ Kd8 15.Qxd5+ Nd7 16.Re6) 12...Nc6 [12...Bb4 13.Ng4 Bxc3 14.bxc3 Nxg4 15.Qxg4 0-0 16.Qe6+ Rf7 17.Rd1 Qd7 18.Qxd5+/-] 13.Ng4+/- Nxg4?! 14.Qxg4+- Ne7 15.Bf4 [15.Rd1] 15...Qd7 16.Qxd7+ Kxd7 17.Rad1 Ke6 18.Rfe1 h6 19.f3 [19.Nxd5! wins two pawns] 19...g5 20.Bg3?! [20.Be3] 20...Bg7 21.Nxd5 Nxd5 22.Rxe4+ Kf7 23.Rxd5 Rhd8 24.Rxd8 Rxd8 25.c3+/- [25.b3+- b5 26.Kf2 Rd2+ 27.Re2 Rd1 28.Ke3 Ra1 29.Rd2 Rxa2 30.Rd7+ Kg8 31.Kd3 a5 32.Rb7] 25...Rd2 26.Rb4 b5 27.h4 [27.Kf1+/-] 27...Bf8 28.Rb3 Bc5+ [28...gxh4! 29.Bxh4 Ke6 30.Kf1+/=] 29.Kh2 Kf6?! 30.Kh3 [30.c4! b4 31.Be1 Bd6+ 32.Kh3 Rd1 33.c5] 30...Kf5 31.hxg5? [31.c4! bxc4 32.Rc3 Rxb2 33.Rxc4 Be3+-] 31...hxg5= (!) 32.Bc7 Rd7 33.Bb8?? [The only move was 33.g4+ Ke6 34.Bg3=] 33...Bf2?? [33...Rh7+! 34.Kg3 Rb7-+] 34.g4++- Ke6 35.Bg3?! [35.Ra3] 35...Bc5 36.c4 bxc4 37.Rc3 Kd5 38.Kg2?! [38.b3!+/-] 38...Bd4 39.Rc2 Rb7=/+ 40.b3 cxb3?! [40...c3!-/+] 41.axb3 Rxb3 42.Ra2 Rb2+ 43.Rxb2 Bxb2 

44.f4?? [44.Be1 Bc1 45.Kf2 Kc4 46.Ke2 draws] 44...a5 45.Be1 a4 46.Bb4 gxf4 47.Kf3 Ke5 48.g5 a3 49.Be7 Kf5 0-1


(4) Wong,Russell (2200) - He,Tianyi (2186) [A45]
MI Summer TNM: 2000+ San Francisco (7.5), 09.07.2019
[de Firmian,Nick]

1.d4 Nf6 2.Bg5 Ne4 3.Bf4 c5 4.f3 Qa5+ 5.c3 Nf6 6.d5 Qb6 7.b3 Nh5 8.Bd2 The players are only using a couple of pieces... 8...f5?! 

9.e4 Qf6 10.Qe2 fxe4 11.Qxe4 g6 12.Nh3 Qf5 13.Bd3 Qxe4+ 14.fxe4 Bg7 15.0-0 Nf6 16.Na3 0-0 17.Rae1 Ng4 18.Rxf8+ Kxf8 19.Ng5 Kg8 20.Nf3 d6 21.h3 Ne5 22.Nxe5 Bxe5 23.Rf1 [White has the complicated 23.Bg5! Kf7 24.Rf1+ Ke8 25.Nb5 Na6 26.Bh6 is tremendous for White] 23...Nd7 24.Bg5 Bf6 25.Bxf6 Nxf6 26.Nc4 Nd7 27.Be2 Ne5 28.Nxe5 dxe5 29.Bb5 b6 30.Bc6 Rb8 

31.d6?! [31.b4! would keep a queenside bind] 31...Bb7! Now Black holds 32.Bxb7 1/2-1/2


(5) Viswanath Natraj,Ganesh (2128) - Lin,Michael (2149) [C03]
MI Summer TNM: 2000+ San Francisco (7.6), 09.07.2019
[de Firmian,Nick]

1.e4 e6 2.d4 d5 3.Nd2 Be7 4.e5 c5 5.c3 Nc6 6.Ngf3 Qb6 7.Bd3 cxd4 8.cxd4 Nxd4 9.Qa4+ Nc6 10.Qg4 Kf8 11.0-0 

White has play for the pawn (that king on f8...) 11...Qb4 12.Qg3 h5 13.h3 h4 14.Qh2 g5 15.a3 Qb6 

16.Nb1 Qb3?! 17.Nc3 d4?! 18.Nd2! Chasing him back -- now Black is on the run. 18...Qb6 19.Nce4 Nh6 20.Nf3 Qb3 21.Bb1 g4 22.Bxh6+ Rxh6 23.Qf4 gxf3 24.Qxh6+ Ke8 25.Nf6+ Kd8 26.Qh8+ Kc7 27.Qe8? [27.Be4!+- keeps control with extra material] 27...Bxf6 28.exf6? [28.Qxf7+] 28...fxg2 29.Kxg2 Qd5+ 30.f3 Qg5+ 31.Kf2 Qxf6 32.Be4 Rb8 33.Qf8 Bd7 34.Qc5 Qf4 35.Rg1 f5 36.Bxc6 bxc6 37.Qxa7+ Rb7 38.Qa5+ Kd6 39.b4 Rb5 40.Qd8 Qd2+ 41.Kf1 Re5? [41...Qd3+ 42.Kf2 Qe3+ 43.Kg2 Qe2+ 44.Kh1 Qxf3+ is mopping up] 42.Rg7 Qe2+ 43.Kg1 Qe3+ 44.Kh1 Qxf3+ 45.Kg1 Qe3+ 46.Kh1 Qxh3+ 47.Kg1 Qe3+ 48.Kh1 Qf3+ 49.Kg1 Qe3+ 50.Kh1 Qf3+ 51.Kg1 Qe3+ 52.Kh1 Qf3+ 53.Kg1 1/2-1/2


(6) Askin,Michael (1949) - Yanofsky,Kevin (1964) [E11]
MI Summer TNM: 2000+ San Francisco (7.7), 09.07.2019
[de Firmian,Nick]

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7 5.g3 0-0 6.Bg2 Bxd2+ 7.Qxd2 d6 8.0-0 Nbd7 9.Nc3 e5 10.Qc2 c6 11.e3 h6 12.b4 e4 13.Nd2 d5 14.Qb3 Nb6 15.a4 Be6 16.c5 Nbd7 17.Qc2 [17.b5 continues the queenside initiative] 17...Nh5 18.Kh1 g5 19.Rg1 Ndf6 20.f3 

20...Qc7?! 21.Nf1?! [21.fxe4 clears f3 for 21...Nxg3+ 22.hxg3 Qxg3 23.Nf3 Ng4 24.Ra2!] 21...exf3 22.Bxf3 Bh3?! 23.g4! Bxf1 24.Raxf1 Ng7 25.Rg3 Ne6? 26.Qf5 Kg7 27.Bd1 Ne8 28.Bc2 Rh8 29.Rgf3 

29...Nd8 30.e4 dxe4 31.Nxe4 Qc8 32.Qe5+ Kg8 33.Qxe8+ 1-0


(7) Riese,Kayven (1900) - Tsodikova,Natalya (2197) [C91]
MI Summer TNM: 2000+ San Francisco (7.8), 09.07.2019
[de Firmian,Nick]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 b5 6.Bb3 Be7 7.Re1 0-0 8.d4 d6 9.c3 Bg4 10.d5 Na5 11.Bc2 c5 12.b3 Qc7 13.Be3 c4 14.b4 Nb7 15.Nbd2 a5 16.a3 Ra6 17.Qb1 Rfa8 18.Qb2 Nd7 19.h3 Bh5 20.g4 Bg6 21.Nf1 

A complicated Ruy Lopez. 21...Nb6 22.Bxb6 Qxb6 23.Ne3 Qa7 24.a4 axb4 25.cxb4 f6 26.a5 Nd8 27.Nd1 Qd7 28.Nh4 Be8 29.Nf5 Bf8 30.Nc3 g6 31.Ne3 Bh6 32.Bd1 Nf7 33.h4 Bf4 34.Kg2 Nh6 35.f3 Qa7 36.Qf2 Bd7 37.Re2 Qd4 38.Ra3 Nf7 39.Nc2 Qxf2+ 40.Kxf2 h5! 41.gxh5 gxh5 42.Ra1 Kh7 43.Na3 Rb8 44.Bc2 Nh8 45.Rh1 Ng6 46.Bb1 Raa8 47.Kf1?! Bc1! 

This bishop now becomes the star piece. 48.Ra2 Be3 49.Nc2 Bd2 50.Ne2 Rg8 51.Ng3 Kh6 [51...Nf4!] 52.Ke2 Bf4? That square is for the knight! [52...c3; 52...Bc3] 53.Nf1 Ne7 54.Nfe3 Rg3 55.Ne1 Rg7 56.N1g2 Bg3 57.Kf1 Ng6 58.Nf5+ Bxf5 59.exf5 Ne7 60.Be4 Nc8 61.Rc2 Na7 62.Rh3 Rag8 63.Rh1 Rc8 64.Ne3 Bf4 65.Nd1 Rgc7? 66.Rg1! Rg7 67.Rxg7 Kxg7 68.Rg2+ Kf7 69.Rg6 c3 70.Bc2 Rc4 71.Nf2 Rxb4 72.Nd3? [72.Ne4+-] 72...Rc4 73.Ke2? [73.Nf2! , back on track, would still have held] 73...b4 74.Nxf4 Rxf4 75.Rh6 Nb5 76.a6 Nd4+ 77.Kd1? [77.Kf2!] 77...Rxf3 78.a7 Rf1# 



(8) Melville,Cailen (1935) - Lehman,Clarence (1900) [E60]
MI Summer TNM: 2000+ San Francisco (7.11), 09.07.2019

1.d4 Nf6 2.c4 g6 3.f3 Bg7 4.e4 d6 5.Ne2 0-0 6.Nec3 c6 7.Be3 a6 8.a4 a5 9.Na3 Na6 10.Qd2 Qc7 11.g4 e5 12.d5 Nd7 13.Be2 Ndc5 14.Bd1 f5 15.gxf5 gxf5 16.Bh6 f4 17.Rg1 Rf7 18.Bc2 Kf8 19.Rxg7 Rxg7 20.0-0-0 Kg8 21.Bxg7 Kxg7 22.Qg2+ Kh8 23.Qg5 Bh3 24.Qh6 Qd7 25.Rg1 Qf7 26.Qxh3 Rg8 27.Rd1 Nb4 28.dxc6 Nxc2 29.Kxc2 Ne6 30.Nab5 bxc6 31.Nxd6 Qg6 32.Kb1 Nd4 33.Qd7 Rb8 34.Nf7+ Kg8 35.Nxe5 Rxb2+ 36.Kxb2 Qg2+ 37.Ka3 Nc2+ 38.Kb3 1-0

(9) Chinchwadkar,Om (1897) - Clemens,Kristian (1990) [D01]
MI Summer TNM: 2000+ San Francisco (7.12), 09.07.2019

1.d4 d5 2.Nc3 Nf6 3.Bg5 Bf5 4.Bxf6 gxf6 5.e3 c6 6.Bd3 Bg6 7.f4 Bxd3 8.Qxd3 Qd6 9.Nge2 Nd7 10.0-0-0 0-0-0 11.Ng3 e6 12.Rhf1 f5 13.Nh5 Be7 14.h3 Rdg8 15.Rg1 Rg6 16.Rdf1 Rhg8 17.g4 Nf6 18.Nxf6 Bxf6 19.Qd1 fxg4 20.hxg4 c5 21.f5 exf5 22.Rxf5 Rg5 23.Rgf1 Rxf5 24.Rxf5 cxd4 25.Nxd5 Be5 26.exd4 Qxd5 27.Rxe5 Qxa2 28.Qe2 Qa1+ 29.Kd2 Qa4 30.Rc5+ Kb8 31.Qe5+ Ka8 32.d5 Qb4+ 33.Rc3 Qxg4 34.d6 Qg2+ 35.Kd3 Qf3+ 36.Kc4 Qg4+ 37.Kb3 Qe6+ 38.Qxe6 fxe6 1-0

(10) Maser,Thomas (1956) - Smith,Robert (1800) [B15]
MI Summer TNM: 2000+ San Francisco (7.13), 09.07.2019
[de Firmian,Nick]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 6.Nf3 Bd6 7.Bd3 Be6 8.0-0 0-0 9.c3 Nd7 10.Qc2 g6 11.Re1 Re8 12.b4 a5 13.b5 c5 14.a4 Kg7 15.Bb2 Qc7 16.Be4 f5 

17.dxc5 Nxc5 18.c4+ f6 19.Bd5 Bxd5 20.cxd5 Re4 21.Ng5 Bxh2+ 22.Kh1? [22.Kf1! avoids king trouble -- for White] 22...Rh4! 23.Rad1 Be5+ 24.Nh3 Bxb2 25.d6 Qc8 26.Re7+ Kh6 27.Qd2+ f4 28.d7 Nxd7 29.Rxd7 Qc3 30.Qxc3 Bxc3 31.Rxb7 f3 32.Rd3 fxg2+ 33.Kxg2 Be5 34.Rdd7 Rh8! 35.f4 Bxf4 36.Rd4 Bg5 37.Rxh4+ Bxh4 38.Ra7 Be1 39.Nf2 Rd8 40.Ne4 Rd4 41.Nxf6 Rxa4 42.b6 Ra2+ 43.Kf1 Ra1 44.b7 Bg3+ (Here the last scoresheet ends with some marks -- time scramble) 0-1


(11) Davila,Carlos (2085) - Krasnov,Steven (1870) [B43]
MI Summer TNM: 2000+ San Francisco (7.14), 09.07.2019

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Bd3 Bc5 7.Nb3 Be7 8.0-0 Nf6 9.f4 d6 10.a4 Nbd7 11.a5 b5 12.axb6 Qxb6+ 13.Kh1 0-0 14.Qe1 Bb7 15.Be3 Qc7 16.h3 Nc5 17.Nxc5 dxc5 18.e5 Nd5 19.Nxd5 exd5 20.c3 Qc6 21.Qg3 f6 22.Rae1 fxe5 23.fxe5 Rxf1+ 24.Rxf1 Rf8 25.Rxf8+ Bxf8 26.Qh4 g6 27.Bg5 Bg7 28.Bf4 Qe6 29.Be2 h5 30.Qd8+ Kh7 31.Bd3 d4 32.Qh4 Kg8 33.cxd4 cxd4 34.Qg3 Kh7 35.Kh2 Bf8 36.Qg5 Kg7 37.Be2 Kf7 38.Bg3 Bg7 39.Qf4+ Kg8 40.Qxd4 h4 41.Qd8+ Kf7 42.Qxh4 Bxe5 43.Bg4 Bxg3+ 44.Qxg3 Qb6 45.Qe5 Qf6 46.Qxf6+ Kxf6 47.h4 a5 48.Bf3 Ba6 49.Be4 Be2 50.Kg3 Bd1 51.Kf4 Be2 52.g4 Bd1 53.g5+ Kf7 54.Ke5 Bg4 55.Kd6 Be2 56.Bd5+ Kg7 57.Kc5 Kf8 58.Bb3 1-0

(12) Rudyak,Felix (1888) - Drane,Robert Will (1828) [A96]
MI Summer TNM: 2000+ San Francisco (7.15), 09.07.2019

1.d4 e6 2.c4 f5 3.g3 Nf6 4.Bg2 Be7 5.Nf3 d6 6.0-0 0-0 7.Nc3 Ne4 8.Qc2 Nxc3 9.bxc3 Nc6 10.Rd1 Na5 11.c5 dxc5 12.dxc5 Qe8 13.Bf4 Bd7 14.a4 Bd8 15.Ne5 Bc6 16.Nxc6 Nxc6 17.Rab1 e5 18.Bc1 b6 19.a5 Rb8 20.cxb6 cxb6 21.Ba3 Rf6 22.Qa4 Bc7 23.a6 Rc8 24.Rd2 e4 25.Rbd1 e3 26.fxe3 b5 27.Qb3+ Kh8 28.Bc5 Ne5 29.Bh3 Rd8 30.Rxd8 Bxd8 31.Qd5 Bc7 32.Bxa7 Rd6 33.Qb3 Nc4 1-0

(13) Ricard,Bruce (1875) - Persidsky,Andre (1876) [D36]
MI Summer TNM: 2000+ San Francisco (7.16), 09.07.2019
[de Firmian,Nick]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 c6 6.Qc2 Be7 7.e3 0-0 8.Bd3 Nbd7 9.Nge2 Re8 10.0-0 Nf8 11.f3 h6 12.Bh4 Bd6 13.e4 dxe4 14.fxe4 

14...Bxh2+?! [14...Be7 15.h3 Be6 16.Rad1+/-] 15.Kh1! [15.Kxh2? Ng4+ 16.Kg3 g5-+] 15...g5 

16.Bxg5?? [16.Rxf6!+- Qxf6 17.e5 Qg7 18.Ne4; 16.Bf2+/- Ng4 17.e5 c5; 16.e5 Ng4 17.Bf2] 16...hxg5 17.e5 [17.Kxh2 Ng4+ 18.Kg1 Qd6 19.g3 Qh6 20.Nc1 Be6 21.Nb3 Bxb3 22.axb3 Ne6] 17...Ng4 18.Rf3 Bf4 19.Ne4 Re6 20.Rh3 Ne3 21.Qb1 Rg6 22.Nxf4 gxf4 23.Nf6+ Rxf6 24.Bh7+ Kg7 25.exf6+ Qxf6 26.g4 Bxg4 27.Qg1 Nxh7 28.Rxe3 Qh4+ 29.Kg2 fxe3 0-1


(14) Xu,Jayden (1855) - Jensen,Christian (1819) [E70]
MI Summer TNM: 2000+ San Francisco (7.17), 09.07.2019
[de Firmian,Nick]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Bd3 e5 6.d5 0-0 7.Nge2 c6 8.0-0 Na6 9.f4 exf4 10.Bxf4 Qe7 11.Bc2 cxd5 12.Nxd5 Nxd5 13.Qxd5 Nb4 14.Qd2 Nxc2 15.Qxc2 Be6 16.Rad1 Be5 17.Nd4 Bg4 18.Rd3 a6 19.Qd2 Rfe8 20.Rg3 Bd7 21.Nf5 Bxf5 22.exf5 Qc7 23.Bxe5 dxe5 24.Qh6 Qc5+ 25.Kh1 Qf8 26.Qh4 Qg7 27.f6 Qh8? [27...Qf8 28.Rh3 h6 29.Qxh6 Qxh6 30.Rxh6 Rad8 (30...Red8 31.Kg1 Rac8 32.b3 b5 33.Rh4+/=) 31.Rxg6+ (31.Kg1 Re6 32.Rh3 Rd2 33.b3 e4) 31...fxg6 32.f7+ Kf8 33.fxe8Q+ Kxe8 34.Kg1 Rd2 35.Rf6 Rxb2 36.Rxg6 Kf7 37.Rh6 e4=] 28.Qh6? [28.Rb3 b5 29.cxb5 axb5 30.Rxb5 e4 31.Rb7 e3 32.Qf4 e2 33.Re1 Rac8 (33...Rad8? 34.Re7) 34.Rb5+-] 28...Re6=/+ 29.Rh3 Rxf6?! [29...Rc8; 29...Rd8; 29...Rae8] 30.Rxf6 Qxf6 31.Qxh7+ Kf8 32.Rf3 [32.Qh6+=] 32...Qg7 33.Qh4?! [33.Qxg7+=/+] 33...f5? [33...Re8 34.Rf2 f5] 34.g4? [34.Rb3 b5! 35.Qg5 (35.cxb5 Rc8 36.h3 axb5 37.Rxb5 e4 38.Qg5 (38.Qg3) ) 35...Qd7 36.Qf6+ Qf7 37.Qd6+ Kg7 38.cxb5 axb5 39.Qxe5+ Qf6 40.Qxf6+ Kxf6 41.a3+/-] 34...f4= 35.g5 Ke7 36.Qe1 Kd7?? [36...Kf8] 37.Qd2+? [37.Rd3++-; 37.Rb3+-; 37.Qe4+-] 37...Kc7 38.c5? [38.Rb3] 38...Rd8 39.Qa5+? [39.Rd3=] 39...Kc8-/+ 40.Rb3?! [40.c6-/+] 40...Rd1+-+ 41.Kg2 Qd7 42.h3 Qd5+ 43.Kf2 Qd4+ 44.Ke2 e4 45.c6 f3+ 46.Rxf3 exf3+ 47.Kxf3 Rf1+ 48.Ke2 Qd1+ 0-1

(15) Mohammed,Mansoor (1743) - Makhanov,Gaziz (1830) [D11]
MI Summer TNM: 1600-1999 San Francisco (7.9), 09.07.2019
[de Firmian,Nick]

1.d4 Nf6 2.g3 d5 3.Bg2 Bf5 4.Nf3 e6 5.0-0 Bd6 6.c4 c6 7.Nc3 h6 8.a4 a5 9.Qb3 Qd7 10.Ne5 Qc8 11.Bf4 0-0 12.Rac1 Bc7 13.Rfd1 Na6 14.Na2 Ne4 15.f3 Nd6 16.Qa3 Qd8 17.c5 Nc4? losing a pawn [17...Ne8] 18.Nxc4 Bxf4 19.gxf4 dxc4 20.e4 Bg6 21.Rxc4 Qh4 22.Qe3 Rad8 23.Nc1 Nb4 24.Nb3 Ra8 25.Nxa5 

25...Nd5! 26.exd5 exd5 27.Rb4 Rfe8? 28.Qf2! Qxf2+ 29.Kxf2 Rxa5 30.Re1 Rxe1 31.Kxe1 Ra7 32.Bh3 f5 33.Kd2 Kf7 34.Rb3 Kf6 35.Kc3 Bf7 36.Kb4 g6 37.Re3 Ra8 38.Re5 Be6 39.Bf1 Ke7 40.Bd3 g5? 41.Bxf5 1-0


(16) Robeal,Rafik (1737) - Papanek,Ella (1997) [A34]
MI Summer TNM: 1600-1999 San Francisco (7.18), 09.07.2019
[de Firmian,Nick]

1.Nf3 c5 2.c4 e6 3.g3 Nf6 4.Bg2 Nc6 5.0-0 Be7 6.Nc3 0-0 7.d3 d5 8.e3 Re8 9.Ne2 e5 10.cxd5 Nxd5 11.a3 Bg4 12.Qa4 f5 13.Qb3 Na5 14.Qa2 e4 15.dxe4 fxe4 16.Rd1 Be6 17.Ne1 

17...Nf4?! 18.Rxd8? [18.exf4!] 18...Nxe2+ 19.Kf1 Bxa2 Black is winning, now. 20.Rxa8 Rxa8 21.Bd2 Bc4 22.Bxa5 b6 23.b3 Ba6 24.Bd2 Rd8 25.Ra2 Nc3+ 0-1


(17) Huberts,Alexander (1615) - Jones,Charlie (1739) [C42]
MI Summer TNM: 1600-1999 San Francisco (7.19), 09.07.2019
[de Firmian,Nick]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Nc3 Nxc3 6.dxc3 Nc6 7.Nd4 d5 8.Bb5 Bd7 9.0-0 Be7 10.Qf3 Nxd4 11.Bxd7+ Qxd7 12.cxd4 0-0-0?! 13.Qxf7 Rdf8 14.Qh5 Rf5 15.Qe2 h5 16.Re1 Bh4 17.g3 Bf6 18.c3 g5 19.Bd2 g4 20.Qe6 h4 21.Bf4 Bg5 22.Bxg5 Rxg5 23.Re2 hxg3 24.fxg3 Rf8 25.Rae1 c6 26.Qxd7+ Kxd7 27.Re7+ Kd8 28.Rxb7 Rgf5 29.Rxa7 R8f6 30.Re2 Rf1+ 31.Kg2 R6f3 32.Rg7 Ra1 33.a3 Rff1 34.Rxg4 Rg1+ 35.Kh3 Raf1 36.Rg7 Rf8 37.Ree7 Rh8+ 38.Kg4 Rxh2 39.Ra7 Rxg3+ 40.Kxg3 Rxb2 41.Rg8# Nice technique after winning a pawn. 1-0

(18) Mercado,Adam (1708) - Porlares,Teodoro (1728) [B18]
MI Summer TNM: 1600-1999 San Francisco (7.20), 09.07.2019
[de Firmian,Nick]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.Nf3 Nd7 7.Bd3 Bxd3 8.Qxd3 e6 9.Bd2 Ngf6 10.c4 Be7 11.Ne4 Nxe4 12.Qxe4 Nf6 13.Qe2 0-0 14.0-0 Qc7 15.Bg5 h6 16.Bh4 Rfd8 17.Rfe1 Rd7 18.Rad1 Rad8 19.h3 g5 20.Bg3 Qa5 21.a3 Qf5 22.Be5 Bd6 23.Bxf6 Qxf6 24.Ne5 Bxe5 25.dxe5 Qf4 26.g3 Qf5 27.Rxd7 Rxd7 28.Kg2 Kg7 29.b4 b6 30.Qf3 Kg6 31.Qxc6 Rd3 32.g4 Qf4 33.a4 h5 34.gxh5+ Kxh5 35.Qa8 Kg6 36.Re3 Rxe3 37.fxe3 Qxe5 38.Qg8+ Kh6 39.Qxf7 Qxe3 40.Qf6+ Kh7 41.Qf3 Qd2+ 42.Kg3 Qxb4 43.Qh5+ [43.Qf7+=] 43...Kg7 44.Qxg5+ Kf7 45.Qf4+ Kg6 46.Kg4?! Qxa4 47.Qg5+ Kf7 48.Kh5?? Qa5 49.Qxa5 bxa5 50.c5 a4 0-1

(19) Malykin,Erika (1704) - Rakonitz,David (1617) [E12]
MI Summer TNM: 1600-1999 San Francisco (7.21), 09.07.2019

1.d4 Nf6 2.c4 e6 3.Bg5 Be7 4.Nf3 b6 5.e3 Bb7 6.Be2 0-0 7.Nc3 d5 8.Rc1 dxc4 9.Bxc4 Nbd7 10.0-0 c5 11.h3 Ne4 12.Bxe7 Qxe7 13.d5 Nxc3 14.Rxc3 exd5 15.Bxd5 Bxd5 16.Qxd5 Nf6 17.Qf5 Rfd8 18.Rfc1 Rd5 19.Qc2 Rad8 20.Rc4 Qd6 21.b4 Rd1+ 22.Rxd1 Qxd1+ 23.Qxd1 Rxd1+ 24.Kh2 Nd7 25.bxc5 Nxc5 26.Rd4 Rd3 27.Kg3 f6 1/2-1/2

(20) Hack,Richard (1615) - Cortinas,Marty (1663) [A20]
MI Summer TNM: 1600-1999 San Francisco (7.22), 09.07.2019
[de Firmian,Nick]

1.c4 e5 2.g3 Nf6 3.Bg2 c6 4.e4 d5 5.cxd5 cxd5 6.Nc3 d4 7.Nd5 Nxd5 8.exd5 Be7 9.Ne2 0-0 10.Qc2 Nd7 11.0-0 Nb6 12.f4 f6 13.fxe5 fxe5 14.Rxf8+ Bxf8 15.Be4 g6 16.Qb3 Qd6 17.Qf3 Bh3 18.d3 Qd7 19.Bg5 Bg7 20.d6 

20...Rf8 21.Qh1 Qf7 22.Bf3 Qxf3 23.Qxf3 Rxf3 24.Rd1 Kf7 25.Kh1 Rf1+ 26.Rxf1+ Bxf1 27.Nc1 Ke6 28.Kg1 Bh3 29.Be7 Nd5 30.Nb3 b6 31.Bg5 Bf5 32.Nc1 Nb4 33.d7 Kxd7 34.Kf2 Nxd3+ 35.Nxd3 Bxd3 36.Ke1 Ke6 37.Kd2 Bb1 38.a3 h6 39.Kc1 hxg5 40.Kxb1 d3 41.Kc1 e4 42.b3 e3 43.Kd1 Bc3 0-1


(21) McKellar,Daniel (1844) - Cohee,Jim (1606) [A36]
MI Summer TNM: 1600-1999 San Francisco (7.23), 09.07.2019

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 e6 6.0-0 Nge7 7.d3 0-0 8.e4 d6 9.Be3 a6 10.d4 cxd4 11.Nxd4 Bd7 12.Rc1 Rc8 13.b3 Qc7 14.Qd2 Bxd4 15.Bxd4 Nxd4 16.Qxd4 Nc6 17.Qd2 Rfd8 18.Rfd1 Qa5 19.Na4 Be8 20.Qxa5 Nxa5 21.Nb2 Kf8 22.b4 Nc6 23.a3 Ke7 24.h4 e5 25.Na4 Nd4 26.Nc3 Bc6 27.Kf1 h5 28.Bh3 Rb8 29.Nd5+ Bxd5 30.cxd5 f5 31.Rc7+ Rd7 32.Rdc1 Kd8 33.Rxd7+ Kxd7 34.exf5 gxf5 35.f3 Rc8 36.Rxc8 Kxc8 37.g4 Nxf3 38.gxf5 Nxh4 39.Kf2 e4 40.Ke3 Nf3 41.f6+ Kd8 42.Bf5 b6 43.Kxe4 Ne5 44.Kf4 Ke8 45.Kg5 1-0

(22) Newey,Richard (1630) - Argo,Guy (1884) [C41]
MI Summer TNM: 1600-1999 San Francisco (7.24), 09.07.2019
[de Firmian,Nick]

1.e4 e5 2.Nf3 d6 3.Bc4 [3.d4] 3...Be7 4.0-0 Nf6 5.d3 h6 6.h3 c6 7.Nc3 b5 8.Bb3 a5 9.a4 b4 10.Ne2 Nbd7 11.Be3 Ba6 12.Ng3 Qc7 13.Nf5 Bf8 14.Qd2 d5 

15.Rfe1? White has done well up to now, compromising Black's queenside advance and establishing a knight on f5, but he fails to come up with a refutation to Black's central push. [15.exd5! (the loss of support for the knight on f5 doesn't figure in) 15...cxd5?! (15...Nxd5 16.Rfe1 0-0-0 17.Bxd5 cxd5 18.c3 Kb7 19.Qd1 (19.cxb4!? Bxb4 20.Qd1 Bxe1 21.Qxe1) 19...bxc3 20.bxc3) 16.Rfe1 (16.c3; 16.Rac1!? d4 17.Bxd4 exd4 18.Rfe1+ Kd8 19.N3xd4 is quite dangerous for Black16...0-0-0 (It's hard for Black to move at a all!) 17.c3] 15...d4?! [15...dxe4 16.dxe4 Nxe4 17.Qc1 (17.Bb6? Nxd2 18.Bxc7 Nxb3 (18...Nxf3+ 19.gxf3 g6 20.Nd4 Bb7 21.f4+/-) 19.cxb3 f6 20.Rad1 Ra7 (20...Nc5 21.Bxe5 Nd3) 21.Bd6 Kf7=/+) ] 16.N5xd4?! [16.Bxd4 g6!?; 16.Bf4!? exf4?! (16...c5 17.c3!!) 17.e5! starts an avalanche 17...0-0-0! 18.exf6 Nxf6 19.Ne5! Nd5 20.Nxd4 Bb7 21.Bxd5 Rxd5 22.Qxf4 Bd6 23.Ndf3 f6 24.Qg4+ when it's White who is up a healthy pawn] 16...exd4 17.Nxd4 Nc5=/+ 18.Bf4?! [18.Ba2] 18...Qd7-/+ 19.e5 Nd5 20.Bxd5 Qxd5 21.Nf5 Ne6 22.Nd6+ Bxd6 23.exd6 0-0 Black has held down the fort and just has an extra knight (for a couple pawns, but they're not up to much) 24.Be5 c5 25.b3 Bb7 26.f4 f6 27.Bb2 Qxd6 28.Re2 Nxf4 29.Rf2 Ng6 30.Re1 Rae8 31.Rfe2 Bc6 32.Rxe8 Rxe8 33.Rxe8+ Bxe8 34.Qe3 Bf7 35.Qe4 Qd5 36.Qg4 Qg5 37.Qxg5 hxg5 38.Kf2 Bd5 39.g3 Be6 40.Kg2 Kf7 41.Bc1 Bd5+ 42.Kf2 Ke6 43.Be3 Kd6 0-1


(23) Bradley,Christopher Nolan (1634) - Latourette,Nicholas (1585) [D07]
MI Summer TNM: 1600-1999 San Francisco (7.25), 09.07.2019
[de Firmian,Nick]

1.Nf3 Nc6 2.d4 d5 3.c4 e6 (curious that both scoresheets say 2...d5 and 3...d6) 4.g3 h6 5.Bg2 Nf6 6.0-0 dxc4 7.e3 Bd6 8.Nc3 0-0 9.b3 cxb3 10.Qxb3 Rb8 11.Ba3 Qe7 12.Nb5 Bxa3 13.Qxa3 Qxa3 14.Nxa3 a6 15.Rfc1 Bd7 16.Ne5 Nxe5 17.dxe5 Nd5 18.Bxd5 exd5 19.Rxc7 Bc6 20.Nc2 Rbc8 21.Rxc8 Rxc8 22.Nd4 Bd7 23.Rb1 b5 24.Kg2 Rc4 25.Rb2 Kf8 26.f4 Ke7 27.Kf3 h5 (One scoresheet says "...h4") 28.h3?? Bxh3 29.Ke2 g6 (Both scoresheets say "... h6" -- !!) 30.Kd2 Kd7 31.Rc2 Rxc2+ 32.Kxc2 Kc7 33.Kc3 Kb6 34.a3 a5 35.Nc2 Kc5 36.Nd4 Bg4 37.Nb3+ Kb6 38.Kd4 b4 39.axb4 axb4 40.Nc5 [40.Kxd5?? Be6+] 40...Kb5 41.Kxd5 b3 42.Nd3 [42.Nxb3?? Be6+] 42...Ka4 43.Kd4 Be2 44.Nb2+ Kb4 45.e4 Bf1 46.f5 gxf5 47.exf5 Bb5 48.e6 fxe6 49.fxe6 Ka3 50.Kc3 Be8 51.e7 Bg6 52.Nc4+ Ka2 53.Nb2 Be8 54.Nd3 Bg6 

55.Nb4+??= [55.Nc1++-] 55...Ka3 1/2-1/2


(24) Mays,Jerry (1700) - Tamondong,Cesar B (1715) [B32]
MI Summer TNM: 1600-1999 San Francisco (7.26), 09.07.2019
[de Firmian,Nick]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 d6 6.N1c3 a6 7.Na3 b5 8.Ncxb5?! [8.Nd5!] 8...axb5 9.Bxb5 Bd7 10.0-0 Nf6 11.Bg5 Be7 12.Bxf6 gxf6 13.Qd5 Qc7 14.Rfd1 0-0 15.c3 Ra5 16.Rd3 Kh8 17.Rg3 Nd8 18.Qd1 Rg8 19.Rxg8+ Kxg8 20.Qc1 Bxb5 21.b4 Rxa3 22.Qxa3 Qb7 23.Qa5 Nc6 24.Qa3 Bd8 25.Qb3 Ne7 26.c4 Bc6 27.f3 f5 28.exf5 Nxf5 29.b5 Bd7 30.a4 Nd4 31.Qd3 Ba5 32.Rd1 Bf5 33.Qe3 Bb6 34.Qg5+ Bg6 35.Kf1 Nxf3! 0-1

(25) Sablon,Hadrien - Yamamoto,Craig (1500) [B20]
MI Summer TNM: 1600-1999 San Francisco (7.27), 09.07.2019

1.e4 c5 2.Nc3 d6 3.Bc4 e6 4.d3 Nf6 5.f4 Nbd7 6.Nf3 Nb6 7.Bb3 Be7 8.0-0 0-0 9.Qe1 Bd7 10.e5 Nfd5 11.Ne4 Qc7 12.Bd2 Nc8 13.c4 Nb4 14.Bxb4 cxb4 15.Qg3 a5 16.Bc2 b6 17.b3 Ra7 18.d4 Qd8 19.d5 exd5 20.cxd5 Bf5 21.Nf6+ Bxf6 22.Bxf5 Be7 23.Nd4 dxe5 24.Nc6 Qc7 25.Qh3 Bf6 26.Qxh7# 1-0

(26) Etinoff,Claude (1648) - Carron,Joel (1516) [D00]
MI Summer TNM: 1600-1999 San Francisco (7.28), 09.07.2019
[de Firmian,Nick]

1.d4 Nf6 2.f4 d5 3.e3 Bf5 4.c3 e6 5.Bd3 Bxd3 6.Qxd3 Bd6 7.Nf3 Nbd7 8.0-0 0-0 9.Nbd2 c5 10.Ne5 c4 11.Qe2 h5 12.e4 Nb6 13.h3 g6 14.Qf3 dxe4 15.Nxe4 Nxe4 16.Qxe4 Bxe5 17.fxe5 Nd5 18.Bh6 f5 

19.exf6 Rxf6 20.Rxf6 Qxf6 21.Rf1 1-0


(27) Casares,Nick (1603) - Khamkar,Susheel (1466) [C02]
MI Summer TNM: 1600-1999 San Francisco (7.29), 09.07.2019

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.a3 Nge7 7.Be2 Nf5 8.0-0 cxd4 9.b4 dxc3 10.Nxc3 Be7 11.Bb2 f6 12.Na4 Qd8 13.Rc1 0-0 14.Nc5 fxe5 15.Nxe5 Bd6 16.Nxc6 bxc6 17.h3 a5 18.Re1 axb4 19.axb4 Qb6 20.Qd2 Rb8 21.Ba3 Qc7 22.Bg4 Bf4 23.Qe2 Nd4 24.Qd3 Bxc1 25.Rxc1 Qf4 26.Qf1 e5 27.Nd3 Qf6 28.Bb2 Bxg4 29.Bxd4 exd4 30.hxg4 Qe6 31.Re1 Qxg4 32.Ne5 Qc8 33.Rc1 Rf6 34.Qd3 Rxb4 35.Qa3 Qb7 36.Qa5 Rb1 37.Qd8+ Rf8 38.Qg5 Rxc1+ 39.Qxc1 c5 40.Qxc5 Qb1+ 41.Kh2 Qe4 42.Nd7 Qf4+ 43.Kh1 Re8 44.Qxd5+ Kh8 45.Qh5 Re1# 0-1

(28) Rousso,Gregory - Baer,Michael (1397) [C34]
MI Summer TNM: U1600 San Francisco (7.10), 09.07.2019
[de Firmian,Nick]

1.e4 e5 2.f4 exf4 3.Nf3 Nf6 4.e5 Nh5 5.Bc4 d6 6.e6 Bxe6 7.Bxe6 fxe6 8.0-0 g6 9.Qe2 Qe7 10.Re1 e5 11.Nd4 a6 12.Qg4 Nf6 13.Qc8+ Qd8 14.Qxb7 Nbd7 15.Ne6 Qc8 16.Qxa8 Qxa8 17.Nxc7+ Kd8 18.Nxa8 Kc8 19.d4 Kb7 20.dxe5 dxe5 21.Nb6 Bc5+ 22.Kf1 Bxb6 23.Nc3 g5 24.Ne4 Nxe4 25.Rxe4 Re8 26.b4 Nf6 27.Re2 e4 28.c4 Bd4 29.Bb2 Rd8 30.Rd1 Bb6 31.Rxd8 Bxd8 32.Bxf6 Bxf6 33.Rxe4 Bc3 34.a3 Bb2 35.a4 Bc3 36.b5 Bb4 37.Re5 h6 38.Re6 axb5 39.axb5 h5 40.Re5 1-0

(29) Barreyro,Romeo - Reyes,Victor Hugo (1282) [B13]
MI Summer TNM: U1600 San Francisco (7.30), 09.07.2019
[de Firmian,Nick]

1.d4 d5 2.Nf3 c5 3.e3 cxd4 4.exd4 a6 5.Bf4 Nc6 6.c3 Bf5 7.Bd3 Bg4 8.0-0 f5 9.Nbd2 Nf6 10.Qc2 e6 11.Rfe1 Ne4 12.Ne5 Nxe5 13.Bxe5 Bh5 

14.f3 Nf6 15.Bxf5 Bf7 16.Bg3 Qd7 17.Bh4 Be7 18.Bd3 g6 19.f4 0-0 20.Nf3 Nh5 21.Bxe7 Qxe7 22.g3 Ng7 23.Ng5 Be8 24.Re5 Rf6 25.Rae1 Bd7 26.Rxd5 Raf8 27.Rde5 Bc6 28.Bc4 Qc7 29.Bxe6+ Kh8 30.Bb3 Qd7 31.Re7 Qg4 32.d5 Rxf4 33.Ne4 Bb5 34.c4 Bd7 35.Qg2 Rf3 36.Bd1 h6 37.Bxf3 Rxf3 38.Rxd7 Rf8 39.Rxb7 Nf5 40.Qd2 h5 41.Qc3+ Kg8 42.Nf6+ Rxf6 43.Qxf6 Qd4+ 44.Qxd4 1-0


(30) James,Charles (1404) - Chan,John (1530) [E20]
MI Summer TNM: U1600 San Francisco (7.31), 09.07.2019

1.d4 Nf6 2.c4 c6 3.Nc3 e6 4.e4 d6 5.Nf3 Be7 6.Bd3 Nbd7 7.0-0 e5 8.h3 h6 9.Be3 g5 10.Nh2 Qc7 11.Rc1 Nf8 12.b4 Ng6 13.d5 Bd7 14.c5 a6 15.Na4 Nf4 16.Nb6 Rd8 17.Nxd7 Qxd7 18.dxc6 bxc6 19.Bxa6 Nxe4 20.Bxf4 gxf4 21.Nf3 Rg8 22.Kh2 Qc7 23.cxd6 Bxd6 24.Qc2 Ng5 25.Qxc6+ Qxc6 26.Rxc6 Nxf3+ 27.gxf3 h5 28.a3 h4 29.Bd3 Rg7 30.Rfc1 Ke7 31.Be4 Rdg8 32.Rc8 Rg2+ 33.Kh1 Rxc8 34.Rxc8 Rxf2 35.Rc3 Ra2 36.Rb3 Ke6 37.Bd3 Ra1+ 38.Kg2 f5 39.Bc4+ Ke7 40.Bb5 Ra2+ 41.Kf1 e4 42.fxe4 fxe4 43.Bc6 e3 44.Bf3 Rf2+ 45.Kg1 Rxf3 46.Kg2 Rf2+ 47.Kg1 Rd2 48.Kf1 Rh2 0-1

(31) Starr,Albert (1545) - Ross,Max (1574) [A05]
MI Summer TNM: U1600 San Francisco (7.32), 09.07.2019
[de Firmian,Nick]

1.b4 Nf6 2.Bb2 d6 3.e3 g6 4.Nf3 Bg7 5.Be2 0-0 6.0-0 b6 7.d3 Bb7 8.Nbd2 e5 9.c4 Nbd7 10.a4 e4 11.dxe4 Nxe4 12.Bxg7 Kxg7 13.Nxe4 Bxe4 14.Qd4+ Nf6 15.Nd2 Bb7 16.b5 c5 17.bxc6 Bxc6 18.Rfd1 Kg8 19.Bf3 d5 20.c5 Rc8 21.cxb6 axb6 22.Nb3 Ba8 23.Be2 Ne4 24.Rac1 Rxc1 25.Nxc1 Qc7 26.Bf3 Qc2 27.Ne2 Qb3 28.g3 Rc8 29.Rd3 Qb1+ 30.Kg2 Rc4 31.Rd1 Qb3 32.Qd3 Qxa4 33.Bxe4 dxe4 34.Qd8+ Kg7 35.Rd6 Rc6 36.Qf6+ Kh6 37.Rxc6 Qxc6 38.Qxf7 b5 39.Nd4 Qd5 40.Qxd5 Bxd5 41.Nxb5 Kg5 42.Kh3 Kf6 43.Nd4 h6 44.Kg2 Bb7 45.f4 exf3+ 46.Nxf3 Kf5 47.Kf2 Kg4 48.Ne5+ Kf5 49.Nf7 

[Resignation is **not** in order! After 49.Nf7 Bd5! Black is drawing. 50.-- (50.Nxh6+ White's knight is trapped after 50...Kg5 There are plenty of ways to draw, e.g. 51.e4 Be6 52.Nf5; 50.e4+ leaves too few pawns to win1-0


(32) Sachs-Weintraub,Julian (1416) - Hansen,Mateo (1566) [B08]
MI Summer TNM: U1600 San Francisco (7.33), 09.07.2019
[de Firmian,Nick]

1.d4 g6 2.e4 Bg7 3.Nf3 d6 4.Bc4 Nf6 5.Nc3 [5.Qe2!? is a curious (but dangerous!) system mentioned in the old "Modern Defense" book in the 60s, but it's been neutralized (I think!).] 5...0-0 6.0-0 c6 7.Re1 d5 8.exd5 Nxd5 9.Nxd5 cxd5 10.Bb3 Bg4 11.h3 Bxf3 12.Qxf3 Bxd4 13.Bxd5 Nc6 14.Bxc6 bxc6 15.Qxc6 Rc8 16.Qe4 Qb6 17.Re2 Rc4 

18.Qd3 Bxb2 19.Rb1 Rb4 20.Be3 Qa5 21.Bd2 Qxa2 22.c3 Rb6 23.Bc1 Rfb8 24.Qc2 a5 25.Rxb2 Rxb2 26.Bxb2 e6 27.c4 Rb4 28.Qc3 Kf8 29.Qh8+ Ke7 30.Bf6+ Kd6 31.Rxa2 1-0


(33) Cole,Tony (1400) - Fernicola,Michael (1554) [B30]
MI Summer TNM: U1600 San Francisco (7.34), 09.07.2019
[de Firmian,Nick]

1.e4 c5 2.Nf3 Nc6 3.Nc3 e6 4.Bc4 a6 5.a3 b5 6.Ba2 Nf6 7.d3 h6 8.0-0 Be7 9.e5 Nh7 10.d4 cxd4 11.Nxd4 Nxe5 12.Re1 Ng6 13.Re3 0-0 14.Rh3 Re8 15.Ne4 Bb7 16.Ng3 Ng5 17.Rh5 Rc8 18.Bb1 Bf6 19.Bxg5 Bxg5 20.Nde2 d5 21.c3 Qd6 22.Ne4 Qe7 23.Nxg5 hxg5 24.g3 Nf8 25.Rh3 e5 26.Nc1 e4 27.Qh5 f6 28.f3 g6 29.Qh8+ Kf7 30.Ne2 exf3 31.Rh7+ Nxh7 32.Qxh7+ Ke6 33.Nd4+ Kd6 34.Bxg6 Qxh7 35.Bxh7 f2+ 36.Kxf2 Rh8 37.Nf5+ Kc5 38.b4+ Kb6 39.Bg6 Rxh2+ 40.Ke3 Rxc3+ 41.Kd4 Rc4+ 42.Kd3 Rf2 43.Ke3 Rb2 44.Nd6 Rc3+ 45.Kd4 Rxg3 46.Rd1 Rxa3 47.Nxb7 Rxb4+ 48.Kxd5 Kxb7 49.Kc5 Rc4+ 50.Kd5 a5 51.Ke6 Rf3 52.Rd7+ Kb6 53.Rd6+ 

53...Rc6 54.Rxc6+ Kxc6 55.Be4+ Kc5 56.Bxf3 a4 57.Bd5 a3 58.Ba2 Kb4 59.Kf5 Kc3 60.Ke4 Kb2 61.Bd5 a2 62.Bxa2 Kxa2 63.Kd3 b4 64.Ke4 b3 65.Kf5 b2 66.Kxf6 g4 67.Kf5 g3 68.Ke4 b1Q+ 69.Kd4 g2 70.Ke5 g1Q 71.Kd5 Qd3+ 72.Ke5 Qe1+ 73.Kf4 Qde4+ 74.Kg5 Q1h4# 0-1


(34) Cowgill,Jackie (1005) - Simpkins,Jerry (1505) [C40]
MI Summer TNM: U1600 San Francisco (7.35), 09.07.2019
[de Firmian,Nick]

1.e4 e5 2.Nf3 f5 3.d3 fxe4 4.dxe4 d6 5.Be2 Nf6 6.Bg5 Be7 7.0-0 Nc6 8.Nbd2 0-0 9.c3 Bg4 10.Bxf6 Bxf6 11.h3 Be6 12.b4 Ne7 13.a4 Ng6 14.Bc4 Bxc4 15.Nxc4 Nf4 16.Ne3 Bg5 17.Ng4 h5 18.Nxg5 Qxg5 19.c4 hxg4 20.Qxg4 Qxg4 21.hxg4 Ne2+ 22.Kh2 Rf4 23.f3 Raf8 24.Rf2 Rxe4 25.c5 d5 26.c6 b6 27.b5 Rf6 28.g3 Nd4 29.Kg2 Re2 30.Rxe2 Nxe2 31.Kf2 Nc3 32.a5 Nxb5 33.axb6 axb6 34.Ra8+ Kh7 35.Rd8 Rd6 36.Rxd6 Nxd6 37.Ke3 and Black won (starting with 36... "a4") 0-1

(35) Yu,Prescott (1212) - Frank,Robert H (1372) [C43]
MI Summer TNM: U1600 San Francisco (7.36), 09.07.2019
[de Firmian,Nick]

1.e4 e5 2.Nf3 Nf6 3.d4 exd4 4.e5 Ne4 5.Qxd4 d5 6.Bd3 Bf5 7.Nc3 Nxc3 8.Bxf5 Nb5 9.Qg4 g6 10.Bd3 c6 11.0-0 Bg7 12.Bg5 h5 13.Qf4 Qd7 14.Bf6 Bh6 15.Qb4 Bf8 16.Qd2 Rg8 17.Bxb5 cxb5 18.Rfe1 Be7 19.Rad1 Nc6 20.Qxd5 Rd8 21.Qxd7+ Rxd7 22.Rxd7 Kxd7 23.Bxe7 1/2-1/2

(36) Robertson,Wade (1042) - Radaelli,Lucas [A22]
MI Summer TNM: U1600 San Francisco (7.37), 09.07.2019
[de Firmian,Nick]

1.c4 Nf6 2.Nc3 e5 3.e3 Be7 4.Nf3 Nc6 5.g3 d5 6.d4 exd4 7.Nxd4 dxc4 8.Nxc6 Qxd1+ 9.Nxd1 bxc6 10.Bxc4 Bh3 11.Nc3 Rd8 12.a3 0-0 13.Bf1 Bxf1 14.Rxf1 Nd5 15.Ne4 f5 16.Nd2 Bf6 17.Rb1 Rb8 18.Nc4 

18...Nc3 19.Ra1 Rfd8 20.f3 Rd1+ 21.Kf2 Rxf1+ 22.Kxf1 Na4 23.Rb1 Nc3 24.Ra1 Nd5 25.e4 fxe4 26.fxe4 Nb6 27.Nxb6 cxb6 28.Ke2 Rd8 29.Ke3 Rd1 30.Ke2 Rh1 31.h4 Rh2+ 32.Kf3 Bxb2 [32...Rh1!-+ is easier] 33.Ra2 

33...c5? [33...Rc2 34.Be3!? (34.Bxb2 c5 35.Ke3 c4-/+) 34...c5 35.a4 Kf7=/+] 34.Rxb2+- Rxb2 35.Bxb2 Kf7 36.Kf4 g6 37.Kg5 h5 38.e5 a5 39.e6+ [39.a4] 39...Kxe6 40.Kxg6 b5 41.Kxh5 b4 42.Kg6 c4 43.h5 c3 44.Bc1 b3 45.h6 b2 46.h7 

46...b1Q+ 47.Kg7 Qxc1 48.h8Q Qg5+ 49.Kh7 Qh5+ 50.Kg7 Qxh8+ 51.Kxh8 c2 52.g4 c1Q 53.a4 Kf7 54.g5 Qh1# 0-1


(37) Chambers,Don (1291) - Olson,David (1400) [C41]
MI Summer TNM: U1600 San Francisco (7.38), 09.07.2019

1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Bc4 Be6 5.Bxe6 fxe6 6.Nxd4 Qd7 7.Nc3 Nc6 8.Be3 Nxd4 9.Qxd4 c5 10.Qd3 Be7 11.Qb5 Nf6 12.Qxd7+ Nxd7 13.0-0 0-0 14.Rad1 a6 15.Ne2 Ne5 16.Nf4 Kf7 17.Nh3 h6 18.b3 g5 19.f4 gxf4 20.Bxf4 Kg7 21.Bc1 b5 22.Nf4 Kh7 23.Nxe6 Rg8 24.Rf5 Rg6 25.Nf4 Rg4 26.Rf1 Rag8 27.h3 Rg3 28.Bb2 Nf3+ 29.Kh1 Nd2 30.Rf7+ R8g7 31.Bxg7 Rxg7 32.Rxg7+ Kxg7 33.Re1 c4 34.e5 dxe5 35.Nh5+ Kf7 36.Rxe5 c3 37.Ng3 Bd6 38.Re3 b4 39.Nf5 Bf8 40.Rd3 Ke6 41.g4 Nb1 42.Rd4 Na3 43.Re4+ Kf6 44.Re2 Kg5 45.Kg2 Nb5 46.h4+ Kxg4 47.Rf2 Bc5 48.Nxh6+ Kh5 49.Rf6 Be3 50.Nf5 Bd2 51.Rxa6 Kg4 52.Ra5 Na3 53.Nd4 Be3 54.Rd5 Bxd4 55.Rxd4+ Kh5 56.Rxb4 Nxc2 57.Rb5+ Kxh4 58.Rc5 Ne3+ 59.Kf3 1-0

(38) Tobiason,Wolfgang (1380) - Cendejas,Jon (1068) [C50]
MI Summer TNM: U1600 San Francisco (7.39), 09.07.2019
[de Firmian,Nick]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.0-0 Nf6 5.Nc3 d6 6.h3 Be6 7.Bxe6 fxe6 8.d3 h6 9.a3 Qd7 10.Na4 Bb6 11.Nxb6 axb6 12.b3 Ne7 13.Qe2 c5 14.Bb2 Nc6 15.c3 0-0 16.Rad1 Rfe8 17.d4 exd4 18.cxd4 d5 19.dxc5 bxc5 20.Bxf6 gxf6 21.a4 b6 22.Qd2 d4 23.Qxh6 Qg7 24.Qxg7+ Kxg7 25.Nd2 e5 26.Nc4 Rab8 27.Nd6 Red8 28.Nf5+ Kg6 29.f4 b5 30.Rc1 bxa4 31.Rxc5 Nb4 32.bxa4 d3 33.Rd1 d2 34.Ne7+ Kf7 35.Nd5 Nxd5 36.Rxd5 Rxd5 37.exd5 Ra8 38.Rxd2 Rxa4 Something is wrong with the score -- 1-0 1-0

(39) Dubensky,Walt (1154) - Chui,Kevin [B30]
MI Summer TNM: U1600 San Francisco (7.40), 09.07.2019

1.e4 c5 2.Nc3 Nc6 3.Nf3 e6 4.Bc4 Nf6 5.e5 Na5 6.b3 d5 7.exf6 dxc4 8.Ne4 Qd5 9.Qe2 Bd7 10.Bb2 g6 11.Nc3 Qf5 12.0-0-0 cxb3 13.axb3 Rc8 14.Nb5 c4 15.Nfd4 Qc5 16.Ba3 Qd5 17.c3 Nxb3+ 18.Kc2 Nxd4+ 19.cxd4 Bxb5 20.Bxf8 c3 21.Qe3 Qa2+ 22.Kc1 Qb2# 0-1

(40) Geiersbach,Christopher - Reed,Nicholas Xavier (1320) [C02]
MI Summer TNM: U1600 San Francisco (7.41), 09.07.2019

1.e4 e6 2.Nf3 d5 3.e5 Nc6 4.d4 f6 5.Bb5 Bd7 6.Bxc6 Bxc6 7.0-0 Qe7 8.Nbd2 0-0-0 9.a4 Qd7 10.c4 dxc4 11.Nxc4 Bxf3 12.Qxf3 Qxd4 13.Na5 Qd5 14.Qxd5 Rxd5 15.Nc4 fxe5 16.Re1 Bb4 17.Rf1 Nf6 18.b3 Bc3 19.Rb1 Ne4 20.Be3 Nd2 21.Nxd2 Bxd2 22.Bxa7 b6 23.a5 Rxa5 24.Ra1 Kb7 25.Rxa5 Bxa5 26.Ra1 Ra8 27.Bxb6 Bxb6 0-1

(41) Hilliard,Michael (1400) - Thibault,William (1062) [D05]
MI Summer TNM: U1600 San Francisco (7.42), 09.07.2019
[de Firmian,Nick]

1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 c5 5.c3 Nc6 6.Nbd2 Be7 7.0-0 0-0 8.Re1 b6 9.e4 Bb7 10.e5 Nd7 11.Nf1 f6 12.exf6 Rxf6 13.Ng5 Nf8 14.Nf3 cxd4 15.cxd4 Rc8 16.Ng3 g6 17.Bg5? 

loses material [17.Bb5! to conquer e5 17...Nb4!? 18.Re2! a6 19.a3!] 17...Rxf3! (winning two pieces for a rook) 18.Bxe7 Rxd3! 19.Qxd3 Qxe7 20.a3 Qf6 21.Ne2 e5 Bonus: e5 is no longer a hole 22.dxe5 Nxe5 23.Qb3 Ne6 24.Rac1 Nc4 25.Rc2 Nc5 26.Qc3 Kf7 [26...Qxc3! 27.Rxc3 (27.Nxc3?! d4 28.Nb5 (on others, ...Bd5) (28.Ne2 Nxa3) 28...Nb3) 27...Nxb2] 27.Qxf6+ Kxf6 28.Nd4 Rd8?! [28...Ne5 29.Rec1 Ned3] 29.Rce2 [29.h4] 29...Rd7 30.b4 Nd3 31.Re6+ Kf7 32.Ra1 Re7 33.Rxe7+ Kxe7 34.b5 Kd6 35.a4 Nc5 36.Ra2 Ke5 37.Ne2 a5 38.f3 d4 39.Kf2 d3 40.Nc3 Nb3 41.Nd1 Nc1 42.Ra1 Nb3 43.Rb1 Nbd2 44.Ra1 Bd5 45.Ra2 Nb3 46.Ke1 d2+ 47.Ke2 Nc1+ 0-1


(42) Allen,Tom (1400) - Dunlap,Steven (1027) [B21]
MI Summer TNM: U1600 San Francisco (7.43), 09.07.2019
[de Firmian,Nick]

1.e4 c5 2.d4 cxd4 3.c3 e5?! Just giving back the pawn? Maybe. [Lots of people take advantage of the moment to attack the e-pawn when Nc3 isn't available: 3...Nf6; But most just take the pawn: 3...dxc3] 4.Nf3 [4.cxd4] 4...Nc6 [The problem with 4...dxc3 now is that the d-pawn is rather backward.] 5.Bc4 White continues to offer the pawn -- and Black continues to decline it -- until move 18!! 5...Be7 6.0-0 [6.Qb3!?] 6...Qb6 7.Qe2 d6 8.Ng5 Bxg5 9.Bxg5 Nf6 10.Bxf6 gxf6 11.Qh5 Nd8 12.Bb3 Be6 13.Ba4+ Bd7 14.Bxd7+ Kxd7 15.Qf5+ Ke7 16.b3 Ne6 17.Qf3 Nf4 18.Nd2 dxc3 Finally! The end of what must be the longest standoff in Morra Gambit history. 19.Nc4 [19.Qxc3?? Ne2+] 19...Qc5 20.Rfd1 Rad8 21.Rac1 Rhg8 22.g3 f5 23.Rxc3 fxe4 [23...b5 24.Kf1! bxc4 25.Rxc4; 23...Qc6! 24.exf5 Qxf3 25.Rxf3 Ne2+ 26.Kf1 Nd4] 24.Qe3? [24.Qxe4 Qc6! (24...Nh3+ 25.Kg2 Nxf2 26.Qh4+ Ke6 27.Rd2 Ng4 28.h3!) 25.Qxc6 bxc6-/+] 24...Qxe3 25.Rxe3 Nh3+ [25...f5!] 26.Kf1 [26.Kg2 Nf4+ 27.Kf1 Ne6 28.Rxe4? d5] 26...Ng5 [26...f5] 27.h4 Nf3 [27...Ne6] 28.Rxe4 f5 [28...d5! 29.Re3 (29.Rxe5+ Nxe5 30.Nxe5 Kf6) 29...Nh2+ 30.Kg2 Ng4] 29.Re3 

29...Nh2+? [29...e4!] 30.Ke2? [30.Kg2! Ng4 31.Red3 Rg6 32.f3 e4 (32...Nh6 33.Nxe5) 33.Rd5 Nf6 34.Rxf5 Rdg8 35.Nxd6 Rxg3+ 36.Kf2 Rg2+ 37.Ke3 exf3=] 30...Ng4? [30...Ke6!-+] 31.Red3 f4? [31...Rg6 32.f3 e4] 32.Nxd6 fxg3 33.Nf5+ Kf6 34.Rxd8 g2 35.Rxg8 Kxf5 36.Rg1 1-0


(43) Otterbach,Renate (1212) - Ahrens,Richard (1040) [B30]
MI Summer TNM: U1600 San Francisco (7.44), 09.07.2019
[de Firmian,Nick]

1.e4 c5 2.Nc3 e5 3.Bc4 Nf6 4.Nf3 Nc6?! 5.0-0 [5.Ng5!] 5...Be7 6.d3 0-0 7.Bg5 d6 8.Bxf6 Bxf6 9.a3 g6 10.Nd5 Bg7 11.c3 Ne7 

12.h4!? Bg4 13.Ne3 Qd7 14.Nxg4 Qxg4 15.Qb3 b6 

[15...Rab8] 16.Ng5! Qf4?! [16...d5! 17.Bxd5 (17.exd5 Nf5!) 17...Nxd5 18.exd5 (18.Qxd5 Rad8 19.Qc4 Qxh4) 18...Qxh4 19.Nf3 Qh5! when f5 is a square for the queen (... f7-f5 has too many problems for now).] 17.g3 Qf6 18.f4!? [18.Rae1!? intending Re3-Rf3 perhaps!? 18...h6 19.f4!; Stockfish considers chickening out with 18.Kg2 h6 19.Nf3] 18...h6? [18...d5!? 19.Bxd5 (19.exd5 Nf5 again19...Nxd5 20.exd5 (20.Qxd5 h6 21.fxe5 Qxe5 22.Qxe5 Bxe5 23.Nf3 Bxg3 24.Kg2 Bf4=) 20...Qf5 21.fxe5+/= seems a ridiculous evaluation!] 


19.fxe5 Promising, but Black finds a defense. [19.Nxf7!+- d5 (19...Rxf7 20.fxe5 Qxe5 21.Bxf7+ Kh8 22.Rf3) 20.Bxd5 Nxd5 21.Nxe5!] 19...Qxe5 20.Bxf7+ Kh8 21.Kg2! hxg5! 22.hxg5 Qxg5 23.Rh1+ Bh6 24.Rxh6+ Kg7! 25.Rah1 Qd2+ 

26.Kf3? [26.Kg1! when it's looking like one or the other player is going to force a perpetual. 26...Qe3+ was looking like a serious try, but 27.Kg2 Qe2+ 28.Kg1 d5 29.Rh7+ Kf6 30.Qa4!! zeroes up the evaluation: 30...Rxf7 31.Rxf7+ Kxf7 32.Rh7+ Ke6 (32...Kg8 33.Rxe7 Rf8 34.Re8!= (whew!)33.exd5+! Kd6 (33...Kf6 34.Qh4+ g5 35.Qh6+ Kf5 36.Qh3+=) 34.Qf4+ Kxd5 35.Rxe7 Qxe7 36.Qf3+ Kd6 37.Qxa8 Qe1+= Incredible lines!] 26...Qxd3+ 27.Kf4 Rxf7+ 28.Kg5 Qxg3# 0-1


(44) Bryan,Robert (421) - Tabatabai,Ashkon (1136) [A00]
MI Summer TNM: U1600 San Francisco (7.46), 09.07.2019
[de Firmian,Nick]

1.e3 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.a3 Nf6 5.0-0 0-0 6.d4 Bb6 [6...exd4] 7.Nc3 [7.dxe5+/-] 7...e4 (One of the scoresheets had 1.e4; only now did I look at the other one! 8.Nd2 d5 9.Re1 Ng4 10.Re2 Qh4 11.g3?? Qxh2+ 12.Kf1 Qh1# 0-1

(45) Gulbis,Andrew - Daniels,Leverette [D53]
MI Summer TNM: U1600 San Francisco (7.47), 09.07.2019
[de Firmian,Nick]

1.d4 d5 2.c4 Nf6 [2...c6; 2...e6; 2...dxc4] 3.Nc3 [3.cxd5] 3...e6 4.Nf3 Nc6 5.Bg5 Be7 6.e3 0-0 7.Bd3 Nh5 8.Qc2? Bxg5 9.Bxh7+ Kh8 10.Nxg5 Qxg5 11.0-0 g6 12.f4 Qh6 13.cxd5 exd5 14.Nxd5 Qxh7 15.Qc5 Bf5 16.Nxc7 Rac8 17.d5 Nb8 18.Qc3+ Qg7 19.d6 Qxc3 20.bxc3 Rfd8 21.Rad1 Nf6 22.Rfe1 Ne4 23.Nd5 Rxd6 24.Ne7 Rxc3 25.Nxg6+ Bxg6 26.Rxd6 Nxd6 0-1

(46) Sullivan,George (979) - Quartermane,Dennis [D23]
MI Summer TNM: U1600 San Francisco (7.48), 09.07.2019
[de Firmian,Nick]

1.d4 Nf6 2.c4 d5 3.Nf3 dxc4 4.Qa4+ Bd7 5.Qxc4 Be6 6.Qb5+ Nbd7 7.Qxb7 Bd5 8.Qb4 e5 9.Qd2 Ne4 10.Qc2 exd4 11.Nxd4 

11...Nxf2! 12.Kxf2 Bc5? [12...Qh4+! 13.Ke3 (13.Kg1 Qxd4+ 14.e3 Qe5) 13...Bc5-+] 13.e3+- Bxd4 14.exd4 Qf6+ 15.Kg1 Qxd4+ 16.Qf2 c5 17.Qxd4 cxd4 18.Bb5 a6 19.Bxd7+?! Kxd7 20.Bf4 [20.Kf2!] 20...Rac8 21.Kf2?= [21.Na3!+-] 21...Rc2+ 22.Kg3?? [22.Nd2; 22.Bd2] 22...Rxg2+-+ 23.Kh4?! Alas, here the scoresheets go wacky on us. Best would be Drawn around move 42. [23.Kh4 g5+! 24.Bxg5 Rg8] 1/2-1/2


(47) Anderson,David - Ballantyne,Andrew [C57]
MI Summer TNM: U1600 San Francisco (7.49), 09.07.2019
[de Firmian,Nick]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 Nd5?? [4...d5!; 4...Bc5!?] 5.exd5 Qf6 [5...Qxg5 6.dxc6] 6.d3 Ne7 7.d6 Qxg5 8.Bxg5 cxd6 9.Qf3 f6 10.Be3 Rb8 11.Nc3 a6 12.Nd5 Nxd5 13.Qxd5 Be7 14.Qf7+ Kd8 15.Bb6# 1-0


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