Chess Room Newsletter #868 | Mechanics' Institute

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Chess Room Newsletter #868

Gens Una Sumus!

Newsletter #868

April 26, 2019

By Abel Talamantez

Upsets and Chance Shake Things Up in Round 6 of the TNM

Round 6 of the TNM saw some last minute changes. FM Josiah Stearman fell ill and would not be able to play, giving NM Conrado Diaz a chance victory that places him in sole possession of first with 5/6. On Board 2, FM Andy Lee and NM Eric Yuhan Li played to a draw, as did FM Ezra Chambers and NM Tenzing Shaw.

Upsets still prevail in this TNM, as IM Elliott Winslow won a very nice game against FM Kyron Griffith. Expert David Askin won against WFM Natalya Tsodikova, and Jason Childress, who earlier in the tournament drew against GM Patrick Wolff, scored a draw against WGM Carla Heredia.

In one of the final games to finish, IM Elliott Winslow defeats FM Kyron Griffith to put him back into contention.

Going into the final 2 rounds, Conrado Diaz has the lead with 5/6. FM Andy Lee, NM Eric Yuhan Li and NM Tenzing Shaw are right behind at 4.5/6. To view the complete standings, click here.

In the A/B section, William Gray and Kristian Clemens are tied on top with 5/6. Hot on their heels is Jonah Busch at 4.5/6.

The U/1600 section has the lone perfect score in the tournament, with Susheel Khamkar at 6/6. John Chan, Victor Reyes and Charles James are a full point behind at 5/6.

 


Reflections On the Chess Club: A Vision For the Future

In addition to having the honor to serve as Chess Director for the Mechanics' Institute Chess Club, I also serve as one of 7 Northern California delegates to the USCF to actively participate in the yearly meeting in conjunction with the US Open. I am also a member of the USCF Outreach Committee and USCF Chess Club Committee, both committees serve small chess clubs around the US and keep chess clubs involved with the USCF.

The new leadership in the club committee is working on several ways to increase engagement while aligning to the mission of US Chess of empowering people, enriching lives, and enhancing communities through chess. Making it easier for people to start chess clubs, updating the Handbook for chess clubs, and providing access to experienced organizers for advice and ways to obtain chess supplies at a discount are all goals of the Chess Club Committee. Many new developments are in works with these committees, which hopefully will show for the local chess clubs, like MI, around the US.

One of the things that we are most proud of here at the Mechanics' Institute is our broadcasting of club games, which we do for our Tuesday Night Marathon. It started as a concept we thought would generate interest and excitement, but has then evolved into something much more. From the games broadcasting, we have added live commentary of games, and witnessing the engagement and interest at the club and online, I truly feel that this should be a goal for clubs. No other chess club I know of does this, regularly broadcast with commentary the weekly club games. I have witnessed community engagement in ways I have never seen before, and I think broadcasting local games on a regular basis forms a bond between the club and the community that has a deep impact that goes beyond chess. Through the analysis, players can learn about chess, the ideas that are behind the moves. We get to learn how players think and their approach. More importantly, we learn more about the players personally, as they show another side of themselves, we see player and person, the love of chess and the love for the club. I see this week to week, and it is a pleasure to watch.

The Chess Annex at Mechanics' Institute, which also doubles as our broadcast room. Sos Hakobyan and Alexandr Ivanov break down their game with FM Paul Whitehead.

It is true that our club has the resources to do this, while others may not. But I don't think it is out of reach for many clubs. You need a decent laptop, camera, and a microphone. The DGT board is probably the biggest investment, with clock, board and pieces now available for $650 around there. The biggest resource to make this happen is time, as it is a lot of work and requires a commitment to be able to produce this on a regular basis, week to week. It requires a team dynamic where the people involved are passionate about what they do and give it their all. Juan Cendejas and Paul Whitehead do so much more work to make it all happen than is visible to the community.

I believe that if clubs that have the resources can promote chess in this way, connect the club to the esport of chess and thus find a new and innovative way to bring chess to the community and connect them, this will elevate the entire chess community, especially new developing clubs, as it creates interest and more participation.

The Mechanics' Institute will be purchasing two more DGT boards. I would like to offer them on loan to new chess clubs looking to develop and broadcast their games. We wan to do our part to help other clubs develop and thrive, as that benefits chess everywhere. We believe broadcasting and commentary of local club games can provide the fuel for introducing chess to many new people, and we would love to see the engagement we see here week to week, everywhere.

If you know someone looking to start a club, or would like to start a club in a location close to you, please reach out to me. There is great potential in this, and I think it has the power to make a significant impact on the USCF and for our communities.

 


Mechanics' Institute Tournament Week

  • May 2, Thursday 6pm: 2019 Mechanics' Institute Rapid Championship, Presented by PRO Chess League. 5 rounds, G/15 +2
  • May 3, Friday 1pm: GM Eric Hansen Simul
  • May 4, Saturday 10am: Charles Powell Memorial. 5 rounds, G/40;d5
  • May 5, Sunday 1pm: Schutt/Brandwein/Jay Whitehead Memorial Blitz. 6 rounds, double; G/4 +2

To register, please visit www.chessclub.org.

 


Mechanics' Institute Chess Club Players Reno Report

Special thanks to our former MI Chess Director IM John Donaldson for providing this on-site report.

Congratulations to some local players on an outstanding performance at the Larry Evans Memorial in Reno April 19-21. Bryon Doyle from the Berkeley Chess School tied fir first in the Expert section with 4.5/6. Cailen Melville tied for first in the A section with 5/6. Congrats also to Samuel Agdamag, who tied for 2nd in the C section with 4.5/6.

Here are some more results from our club players:

  • Clarence Harris (C) 3.5
  • Renate Otterbach (C) 2.5
  • Adrian Kondakov (open) 2
  • Ezra Chambers (open) 3.5
  • Tom Maser (A) .5 (2)
  • Cailen Melville (A) 5
  • Kristian Clemens (A) 4
  • Bruce Wishard (C) 2.5
  • Russell Wong (Open) 1.5 (5)
  • Daniel Trimbach (A) 2

Congratulations to everyone for participating and our community! Final results can be found here.

 


Tony's Teasers

Last week's problem:

  1. ​Qa6!! Rg4
  2. Qe2#

This week's problem: Mate in 3 by Bettmann, 1933


 


 


Friendly Rivalries, Part 7

By FM Paul Whitehead

IM Guillermo Rey is a well-known Bay Area chess organizer and long-time resident of Pacifica. He organized and played in the two Miz Brown's tournaments in the mid-eighties, and participated in the strong Pan Pacific International of 1987, organized by the Mechanics' Institute.

Aside from his many successes in Bay Area tournaments, Guillermo also tied for 1st place in the United States Game in Ten Minutes Championship in Las Vegas, 2001.

We played 3 times in the space of 2 years, and I was lucky to get the White pieces in all 3 games, scoring 2 wins and a draw.

The thing is, I always played better with White. And, like many 1.e4 players, saw the French Defense as a kind of provocation...

(1) Whitehead,Paul A (2370) - Rey,Guillermo (2334) [C19]

1st Miz Brown's International San Francisco, 1985

Guillermo and I played 2 games this year, this one at Miz Brown's Country Restaurant and the other at the Mechanics' Institute. I'm not sure which game came first, but they have similarities apart from being played in the same year. 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.a3 Bxc3+ 6.bxc3 c5 7.Nf3 Bd7


​Now 8.a4, 8.Bd3, 8.Be2, 8.h4 are all popular as is the move played. 8.dxc5 Ba4 9.Rb1 Nd7 10.Rxb7 Nxc5 11.Rb4 Qa5 12.Bd2 0-0


This all seems reasonable. 13.Rg4 13.c4 and drawn in 35 moves was Chandler - Agdestein, 1985. 13...f5 Understandable, but 13...Rab8 was an alternative. White appreciates Black opening the position up a bit more... 14.exf6 Rxf6 15.Be2 Ne4 16.0-0 Raf8


This doubling of the rooks is ineffectual. 16...Be8! redeploying the Bishop seems better. 17.Bd3 White enjoys a nice edge through the following small tactics and exchanges. 17...Be8 18.c4 Qxa3 19.cxd5 Nxd2 20.Qxd2 exd5 21.Qe3


The threat of 22.Bxh7+ induces a mistake by Black. 21...Qd6? 21...Bg6 or 21...Kh8 were clearly better. 22.Qxa7 Bd7 At any time around here ...Rxf3 seems to fall short. 23.Rg3 h6 24.Qa1 Nc6 25.Re1 Qf4 26.Bb5


Now a new flurry of tactics begins. 26...Nb4? 26...Qb4 holds the fort temporarily. 27.Bxd7 27.Re7 was even stronger. 27...Nxc2 28.Be6+ Kh8 28...Rxe6 29.Qxg7 mate. 29.Qa7 g5


Necessary, but Black's position is weakening. 30.Nxg5 White cannot hold on the extra piece. This threatens 31.Qh7 mate and forces Black's response, but apparently the simple 30.Rf1 or 30.Rd1 is even stronger. 30...Qxf2+ 31.Qxf2 Rxf2 32.Nf7+


The tactics continue. 32...R2xf7 33.Bxf7 Nxe1 34.Bxd5 Nc2 35.h3 Nd4 36.Rg6


An unpleasant position for Black, who had to play 36...Kh7, walking into 37.Be4 Ne2+ 38.Kh2 Nf4. Now White enjoys a huge plus, but the various discovered checks do not lead to a forced win. 36...Rf5? Now the game is past saving. 37.Rxh6+ Kg7 38.Rd6 Ne2+ 39.Kh2 Nf4 40.Bf3


40...Nxg2 This desperate attempt to leave White with the wrong rook-pawn cannot succeed. 41.Kxg2 Re5 42.Kg3 Rg5+ 43.Kf4 Rg6 44.Rd7+ Kh6 45.Bg4 Rg7 46.Rd8 Rg6 47.Bf5 Rb6 48.Rh8+ Kg7 49.Rh7+ Kg8 50.Ra7


The end is near... 50...Rc6 51.Kg5 Rb6 52.h4 Kh8 53.h5 Rb8 54.Kh6 Re8 55.Bg6 Rf8 56.Rh7+ Kg8 57.Rg7+ Kh8 58.Bf7


1-0

(2) Whitehead,Paul A (2370) - Rey,Guillermo (2334) [C19]

San Francisco Bagby San Francisco, 1985

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Nf3 Qa5


Varying from 7...Bd7 of the last game. 8.Bd2 Nbc6 9.Bd3 Inducing ...c4, but so what? 9.a4, 9.h4 and 9.Be2 are all probably better. 9...c4 10.Be2 Bd7 Now 11.a4 and 11.0-0 are the most common. 11.Ng5 f6?


Bad. Simply 11...h6 or 11...0-0 was fine for Black. 12.Bh5+ Ng6 12...g6 13.exf6 is also poor. 13.Nxh7! Kf7 14.Ng5+ fxg5 15.Qf3+ Kg8 16.Bxg6


Black is in trouble. 16...Rf8 17.Qg3 Ne7 18.Qxg5 Qd8 19.Qg4 Nxg6 20.Qxg6 Bishops of opposite colors, but the Major pieces are on the board and White is 2 pawns up. 20...Qh4 21.Be3 Qe4 22.Qxe4 dxe4 Now White plays a move the computer doesn't even consider. 23.d5!


It's important that the position stays open. 23...exd5 24.Bxa7 Rf5 25.Rb1 Bc6 26.Bd4 Kf7 27.Ke2


27...Ke6 28.h3 Ra8 29.Ra1 Ba4 30.Rhb1 Rf7 31.Rb6+


White is making progress. 31...Bc6 32.a4 Ra5 33.Ke3 Rf8 34.f3 White must continue to open up the position. 34...exf3 35.gxf3 Rh8 36.Rg1 Decisive infiltration is imminent. 36...Kf7 37.e6+!


Yet another line-clearing sacrifice! 37...Kxe6 38.Rxg7 Rxh3 39.Rgxb7 It's almost over. 39...Kd6 40.Bf6 Rh6 41.Be7+ Ke5 42.Rc7


Black is in a mating net. 42...d4+ 43.cxd4+ Kd5 44.Rd7+! Bxd7 45.Rxh6


Black faces mate or catastrophic loss. 1-0

(3) Whitehead,Paul A (2380) - Rey,Guillermo (2340) [C19]

San Francisco Bagby San Francisco, 1987

Guillermo might have won this with a little bit more accuracy in the endgame. 1.e4 e6 Another French Defense. 2.d4 d5 3.Nc3 Bb4


Another Winawer Variation. 4.e5 Ne7 5.Nf3 c5 6.a3 Bxc3+ 7.bxc3 Qa5 8.Bd2 Nbc6 9.Be2 cxd4 10.cxd4 Qa4


11.c4 Weak. 11.Rb1 scores very well here. 11...Qxd1+ 12.Rxd1 dxc4 13.Bxc4 0-0 14.0-0 b6 15.Bd3 Bb7 16.Be4 h6


Black is slightly better, with a 2 to 1 queenside pawn majority and the possibility of working on the backward White queen-pawn. 17.Rc1 Rac8 18.Bb4 Nxb4 19.Bxb7 Rxc1 20.Rxc1 Nbd5 21.g3 Rb8


22.Bxd5 22.Ba6 was better. If then 22...b5 23.Rc5. 22...Nxd5 23.Kf1 b5 24.Ke2 Rb6 Black should set the queen-side pawns in motion with 24...a5. 25.Rc8+ Kh7


26.Nd2?! 26.Ne1 was a better re-routing for the knight. 26...Ra6 27.Nb1 Ra4 28.Kd3 Kg6 29.Ke4


29...Ne7?! Leads to nothing. 29...b4 was indicated. 30.Rc3 Nf5 31.Rd3 b4 32.axb4 Rxb4 33.Nd2


The Knight heads to f3, and pawn exchanges on the king-side are coming up. 33...h5 34.h3 a5 35.g4 hxg4 36.hxg4 Ne7 37.f4 a4 38.Nf3 f5+ 39.exf6 gxf6


1/2-1/2

 


Nick de Firmian's Opening Lab

This week: The King's Indian Attack 1. Nf3 2. g3, 3. Bg2 4.0-0 5. d3

We continue with unusual openings. This week we investigate a real "system" opening. We mean "system" in that White simply plays his/her system for the first 6 or 7 moves and doesn't care much what Black does. This has the advantage that you know where to place your pieces and what your basic plan is. Much of the time White will play these first 7 moves: 1. Nf3, 2. g3 3. Bg2. 4. 0-0 5.d3 6. Nbd2 7. e4. The disadvantage is that White does not seize the center, which allows Black some advantage in space. The fun part is when White's king side attack gets going.

Black has a few main responses which we will investigate:

(1)

A. Black responds with d5 and we get a King's Indian Defense Reversed. 1.Nf3 d5 2.g3 c5 3.Bg2 Nc6 4.0-0 Nf6 5.d3


Black has responded in the most classical way, taking the center and giving us the King's Indian Reversed. Now most direct is 5e5 6. Nbd2 Be7 7. e4 d4 8. Nc4 Nd7 9. a4 0-0 which is roughly equal. White has an extra tempo in a position of the King's Indian Defense. Most often the player of the Black side will be less aggressive and choose. 5...e6 After 6.Nbd2 Be7 7.e4 0-0 8.e5 Nd7 9.Re1 b5


We have reached the main line (if there is one in this opening) where chances are about equal. Black has queenside space and seeks to open lines on that side of the board. White has kingside chances spearheaded by the advanced pawn on e5, and this can lead to a dangerous attack.

(2)

B. Black develops the light squared bishop outside of the pawn chain. 1.Nf3 d5 2.g3 c6


This modest move holds the light squares in the center. 3.Bg2 Bf5


Also reasonable is 3Bg4. The idea of developing the light squared bishop to the kingside is to have this piece help out with defense on that wing. One more defender eases the task of defending the Black monarch after castling kingside. 4.0-0 Nf6 5.d3 e6 6.Nbd2 h6


Making a retreat square on h7 for the bishop. Here White cannot continue 7. Re1 Be7 8. e4? dxe4 9 dxe4 Nxe4! as that loses a pawn. Hence: 7.Qe1 Bh7 8.e4 Be7 9.e5 Nfd7 10.Qe2 c5


We now have a London System reversed. Chances are balanced.

(3)

C. Black Fianchettos the king's bishop. 1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.0-0 Bg7 5.d3


This flexible setup allows Black many good options. One is to advance with 5d5 6. Nbd2 e6 7. e4 Nge7 8. Re1 b6 when Black may even castle on the queenside. This is the sharpest variation. More positional is: 5...d6 6.Nbd2 e5 7.e4 Nge7


Black stakes out the dark squares in the center. This, combined with the fianchettoed king's bishop makes it difficult for White to mount a kingside attack. 8.c3 0-0


Black has fully equal chances here, and could start to gain an edge after 9. Nc4 h6. Yet White can also start play on the queenside with 9. a3! when play will range over the entire board.

(4) Fischer,Bobby - Myagmarsuren,L.

Sousse Interzonal, 1967

The King's Indian Attack can also transpose from 1.e4 when Black plays the French Defense and White crosses plans with 2. d3 and 3. Nbd2. Also a Sicilian Kan can transpose after 1. e4 c5 2. Nf3 e6 3. d3 followed by Nbd2, g3 etc. The following classic game is one example 1.e4 e6 2.d3 d5 3.Nd2 Nf6 4.g3 c5 5.Bg2 Nc6 6.Ngf3 Be7 7.0-0 0-0 8.e5 Nd7 9.Re1 b5 10.Nf1 b4 11.h4 a5 12.Bf4 a4


Thematic play from both sides. Powerful attacks are shaping up on both wings. 13.a3! bxa3 13Bb5! keeping options open would maintain level chances. 14.bxa3 Na5 (...Rb8 is better) 15.Ne3 Ba6 16.Bh3 d4 17.Nf1 Nb6


18.Ng5 Nd5 19.Bd2 Bxg5 20.Bxg5 Qd7 21.Qh5


White has dark square play on the kingside, but it's not easy to break through. 21...Rfc8 22.Nd2 Nc3 23.Bf6!


The bishop cannot be taken as the black defenders are too far away. 23...gxf6 24. exf6 Kh8 25 Nf3 coming to g5 or e5. 23...Qe8! 24.Ne4 g6 25.Qg5 Nxe4 26.Rxe4 c4


Black is crashing through on the queenside, but that won't help if the Black king falls. 27.h5 cxd3 28.Rh4


Fischer threatens 29. hxg6 fxg6 30. Rxh7 Kxh7 31. Qh4+ Kg8 32. Qh8+ and mate on g7 28...Ra7


Now what? If 29. Qh6 Qf8 defends, and if 29. hxg6 fxg6 allows the rook on a7 to stop the attack. 29.Bg2! dxc2 30.Qh6 Qf8


31.Qxh7+ It will be mate after 31 Kxh7 32. hxg6+ Kxg6 33. Be4 1-0

 


TNM Games Round 6

Annotations by IM Elliott Winslow

(1) Stearman,Josiah P (2387) - Diaz,Conrado (2343)

Mechanics' Spring TNM: 2000+ San Francisco (6.1), 23.04.2019

White couldn't show up: Forfeit 0-1

(2) Lee,Andy C (2344) - Li,Eric Yuhan (2228) [B81]

Mechanics' Spring TNM: 2000+ San Francisco (6.2), 23.04.2019

[Winslow,Elliott]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.h3 e6 7.g4 h6 8.Bg2 Be7 9.f4 Nc6 10.Be3 Nd7 11.0-0 0-0 12.Nxc6 bxc6 13.Na4 e5?! [13...Bb7 14.c4 c5] 14.f5+/= a5 15.c4 Ba6 16.b3 Nf6 17.Rf2 Rb8 18.Rd2 Qc7 19.Kh1 Rfd8 20.Qg1 c5 21.Qe1 [21.g5! hxg5 22.Bxg5] 21...Bb7 22.Nc3 Bc6 23.Bf3 Qb7 24.Bf2 a4 25.Rb1 Qb4 [25...axb3 26.axb3 Ra8=] 26.Rdb2 Nd7 [26...Rb7 27.Qd2 Rdb8=; 26...Nh7 27.h4+/=] 27.h4 g5 28.Be3 Kg7 29.Qc1 f6 30.Bd2 Qa3 31.Ra1 Qb4


32.Nd5? [32.Nb5!+-; 32.Nxa4+-] 32...Qb7+/- 33.Nxe7? [33.Kg2; 33.Rab1] 33...Bxe4!= forces a perpetual [33...a3 34.Rc2 Bxe4] 34.Bxe4 Qxe4+ 35.Kh2 (else Black mops up the g- and h-pawns with check) 35...Qe2+ 36.Kg3 gxh4+ 37.Kh3 Qf3+ 38.Kxh4 Qf2+ 39.Kh3 Qf3+ 40.Kh2 Qf2+ 41.Kh3 Qf3+ 1/2-1/2

(3) Chambers,Ezra (2336) - Shaw,Tenzing (2287) [C03]

Mechanics' Spring TNM: 2000+ San Francisco (6.3), 23.04.2019

[Winslow,Elliott]

1.e4 e6 2.d4 d5 3.Nd2 h6 4.Bd3 c5 5.Ngf3 Nf6 6.exd5 [6.e5 Nfd7 7.c3] 6...Nxd5 [6...Qxd5; 6...exd5] 7.0-0 [7.Nb3 cxd4 8.Nbxd4+/=] 7...Nc6 8.Nb3 cxd4 9.Nfxd4 Nxd4 10.Nxd4 Bc5 11.Nb3 [11.Nf3+/=] 11...Be7 [11...Bd6=] 12.Qg4 Bf6 13.Rd1 Qc7 14.Bb5+ Kf8 15.Qe2?! [15.c4 Ne7 16.Nc5!?+/=] 15...g6 16.c4 Ne7 17.Be3 Nf5 18.Bc5+ Offered by White. I was sitting next to them, and was surprised at the time; the computer thinks White has nothing, though. 1/2-1/2

(4) Winslow,Elliott C (2306) - Griffith,Kyron (2452) [E92]

Mechanics' Spring TNM: 2000+ San Francisco (6.4), 23.04.2019

[Winslow,Elliott]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 0-0 6.Nf3 e5 7.d5 Maybe this game will finally drag me into the 21st Century vis-a-vis this opening. 7...a5 8.Bg5 Na6 9.Nd2 Qe8 10.a3 [10.0-0 is most common but somewhat lackluster; 10.g4 here has done pretty well -- there's even an early game by current rising star Firouzja of Iran (gotta practice spelling that!): 10...c6 11.h4 cxd5 12.cxd5 Nc5 13.Be3 Nfd7 14.Nb5 Qe7 15.Qc2 f5 16.Nc7 f4 17.Bxc5 Nxc5 18.Nxa8 Qd8 19.f3 Bd7 20.Nc4 1-0 (33) Firouzja,A (2526)-Rahul,S (2331) Ahmedabad 2017] 10...Bd7 [10...h6 11.Be3 Nh7 12.g4 Qe7 13.h4 Bd7 14.b3 was the move order of Zor-Karoglan] 11.b3


11...h6 the most popular but not the most successful [11...Kh8!? followed after anything by ...Ng8 and then ...f5 is a sensible alternative, played succesfully by some quite high-rated players (Kozul & Kupreichik in the 90s, Mamedov, Rogozenco & Nataf this century)] 12.Be3 Nh7 36 games! [12...Nxe4!?] 13.g4N Typical of me, my caveman approach turns out to be (1) a novelty (2) suspect -- but Stockfish seems to like it, off and on! [13.0-0 f5 14.f3 is probably a more sober handling of the kingside, as in Stocek,J (2566)-McShane,L (2640) Katowice 2017 (1-0, 94); 13.Rb1 f5 14.f3 has gotten the vote (26 games), including a couple of textbook wins by Illescas Cordoba: 14...f4 (14...Nf6 15.b4 axb4 16.axb4 Nh5 17.0-0 Nf4 18.Re1 Qe7 19.Bf1 h5 20.exf5 Bxf5 21.Nde4 Bh6 22.Kh1 g5 23.Rb2 Rf7 24.c5 Kh8 25.c6 bxc6 26.Ra2 cxd5 27.Nxd5 Nxd5 28.Qxd5 c6 29.Qxc6 Rc8 30.Qxa6 Be6 31.Nxd6 Bxa2 32.Nxf7+ Bxf7 33.Qxh6+ Kg8 34.Qxg5+ 1-0 (34) Illescas Cordoba,M (2608)-Diaz Castro,S (2241) Seville 2006) 15.Bf2 h5 16.b4 axb4 17.axb4 b6 18.h4 Bf6 19.Bd3 Qe7 20.Ke2 Of course! 20...Ra7 21.Qb3 Kg7 22.Ra1 Rfa8 23.Ra2 Qd8 24.Qb2 Qe7 25.Qa1 c5 26.b5 1-0 (26) Illescas Cordoba,M (2608)-Matamoros Franco,C (2509) Seville 2006; 13.Qb1!? -- hey, frees up d1 for the king!] 13...Qe7!? The only move that doesn't go +/- 14.h4 following the Neanderthal bloodline [14.Rg1; 14.Qc2] 14...f5 15.gxf5 gxf5 16.exf5 e4!?N


[16...Bxf5 was some Turkish hackers: 17.Bg4 Qd7?! 18.Rg1+/- Kh8 19.Nde4 Bxg4 20.Qxg4 Qxg4 21.Rxg4 Nf6 22.Nxf6 Rxf6 23.Ne4 Zor,A (2104)-Karaoglan,D (1921) Izmir 2016 1-0 46 : 1-0 (46); 16...Kh8!? is Stockfish's finesse] 17.Ncxe4! The forthright continuation 17...Bxf5 18.Ng3! [18.Bg4!? I was concerned with the queen sac: 18...Bxe4! 19.Be6+ Qxe6! 20.dxe6 Bxh1 Some sac, White is down material. After much grinding Stockfish makes it the dreaded 0.00: 21.Qg4 Kh8 22.0-0-0 Bc6= (22...Rg8=) ] 18...Nc5?! [18...Bg6 19.h5 Be8 (or 19...Bf5!?) 20.Rb1 (20.Nf3!?) 20...Bd7 21.Nf3 White seems to have an edge (and a pawn)] 19.Rg1? [19.Nxf5 Rxf5 seems to just favor me, any way I play it 20.Qb1!? (20.Rb1; 20.Ra2; even 20.Qc2 Rxf2 21.Bxf2 Bxa1 22.Kd1) ] 19...Kh8


[19...Bg6!?] 20.Nf3?? [20.Nxf5 Rxf5 21.Rc1= (21.Qc2=) ; 20.Rc1! still something for White] 20...Bc3+-+ (completely overlooked the criss-cross) 21.Kf1 [21.Bd2 might be officially less bad, but it's too concessional: 21...Nd3+ 22.Kf1 Bh3+ 23.Rg2 Qg7 (23...Bxd2 24.Bxd3 Qg7) ] 21...Bh3+ 22.Rg2


22...Nxb3? After the game he was looking at this position on his phone and wondering why he did this: "went from three to one." (meaning -3 to -1 on the engine scale). More like minus four: [22...Ne4!-+ is settling at -4.6 and even still sliding worse. 23.Bd4+ Nhf6! 24.Nxe4 Bxd4 25.Qxd4 Qxe4 26.Qxe4 Nxe4 27.Kg1 Bxg2 28.Kxg2 Rf4 and ...a4 will wreck my pawns] 23.Rb1 And this isn't even making it to -1 any more. 23...a4! 24.Kg1! Might as well resolve 24...Bxg2 25.Kxg2 Qg7?! [25...Rf6=/+] 26.Qc2?! [26.h5!? looking for Nh4-g6+, but 26...Be5 27.Nh4 Bxg3 28.Ng6+ Kg8 29.Kxg3 Rf7; 26.Kh1! Nf6 27.Qc2 Be5-/+] 26...Bf6?! At the time I thought he might go here, when he can't use that square for a lot of other pieces -- and there it is. [26...Be5 27.Nxe5 dxe5; 26...Bd4!? 27.Nxd4 Nxd4 28.Qc3 Nxe2 29.Qxg7+ Kxg7 30.Nxe2-/+] 27.Bd3 Rg8 28.Bf5 and now it's Stockfish: 0.00 again 28...Nf8 29.Rg1?! [29.Kh3! keeps the balance, maybe 29...Re8; 29.Qe4 was my alternative during the game (which I wished I'd played), but 29...Ng6 30.Be6 Rae8! -- well, who knows.] 29...Nd4! 30.Qe4? [30.Bxd4 Bxd4 31.Nxd4 Qxd4 32.Re1! might just hold] 30...Ne2?


[30...Nxf5-+ gets rid of my best piece, when he gets his rooks coordinated very quickly 31.Qxf5 Ng6 (31...Nd7; 31...Qg6) ] 31.Kf1? [31.Ng5!! is almost an advantage even for White! How can that be?? 31...Nxg3! (31...hxg5?? 32.hxg5 Nxg1 (32...Nxg3 33.fxg3) 33.gxf6 Qf7 34.Qh4+ Nh7 35.Kxg1+-) 32.fxg3 Be5!= back to the zeroes] 31...Nxg1-+ 32.Kxg1 Ng6 [32...Nd7! 33.Bxh6 Qxh6 34.Bxd7 Rg7] 33.Nh5 Qf7 34.Kf1


34...Nxh4? [34...Ne5!!-+ 35.Nxf6 Qxf6 36.Bd4 Rae8 37.Be6 Qg6 I thought this was winning during the game! There are lots of lines that win one exchange, but I'm down two. 38.Nxe5 (38.Qxg6 Rxg6 39.Bf7 Rf6 40.Bxe8 Rxf3 yech) 38...Qxe4] 35.Nxf6+/= Nxf5 36.Qxf5 Qg6 37.Qf4?!


[37.Qe6! Rae8 38.Nxe8 Qxe6 39.dxe6 Rxe8 40.Bxh6 Rxe6 41.Be3 Kg7 I probably wouldn't win this] 37...Qd3+?? Somewhere around here his time was running out. It looked threatening, but there's never a knockout. [37...Rg7=; 37...Raf8=] 38.Ke1+- Rg6 39.Bd4 Qxc4?


[39...b6 keeps it under] 40.Ng4+ In my fog I saw a piece up endgame and went there; [40.Nh5+! Kg8 41.Qe4!+- only move; mate approaches.; 40.Qe4 is pretty good, too] 40...Kg8 41.Nxh6+ Rxh6 [41...Kh7 42.Qf7+ Kxh6 43.Be3+] 42.Qg5+? [42.Qg4+! catches his queen or his king: 42...Kf7 (42...Kf8 43.Bg7+) 43.Ng5+ Ke7 44.Qe4+ Kd7 45.Qf5+ Ke7 46.Qf7+ mate in a few] 42...Kf7 43.Qg7+ Ke8 44.Qxh6 Qxd5 45.Qh8+


45...Kd7? actually a pretty big mistake; [45...Ke7! 46.Qxa8 Qxf3 47.Qxa4 Qe4+ 48.Kd1 (48.Kf1 Qd3+) 48...Qd3+ 49.Kc1 b5 is getting problematical. But in practice, he was the one about to lose on time...] 46.Qxa8 Qxf3 47.Qxa4+ c6 48.Be3 Qh1+ 49.Ke2 Qh5+ 50.f3 Qh2+ 51.Bf2 Qe5+ 52.Kf1 b5 53.Qa7+ Kc8 54.Qd4 Qe7 55.Qb6 Qd7 56.Bg3 Qe8 57.Bxd6 Kd7 58.Bb4 [58.Qc7+ Ke6 59.Bb4] 58...Qe6 59.Qd4+ Kc7 60.Ba5+ Kb7 61.Bb4 Qg6 62.Qd7+ Ka6 63.Kf2 Qc2+ 64.Kg3 Qg6+ 65.Qg4 Qf6 66.Qc8+ Kb6 67.Qf8 Qg6+ 68.Kh4 Qh6+?? A ragged, intense game, theoretically out there, plenty of dreadful and exciting moves. 1-0

(5) Heredia Serrano,Carla (2291) - Childress,Jason (2058) [B02]

Mechanics' Spring TNM: 2000+ San Francisco (6.5), 23.04.2019

1.e4 d5 2.exd5 Nf6 3.Nc3 Nxd5 4.Bc4 c6 5.Qf3 e6 6.Nge2 Nd7 7.d4 N7b6 8.Bd3 Be7 9.0-0 0-0 10.Rd1 Nd7 11.Ng3 Nb4 12.Nh5 Nxd3 13.Rxd3 f5 14.Bf4 Qe8 15.Re1 g5 16.Rxe6 gxf4 17.Qxf4 Qxh5 18.Rxe7 Nf6 19.Rg3+ Kh8 20.Qe5 Qh6 21.f4 b6 22.Rh3 Qg6 23.Rg3 Qh6 24.d5 Ba6 25.d6 Rad8 26.Rh3 Qg6 27.Rg3 Qh6 28.Rh3 Qg6 29.Rg3 Qh6 30.Rxa7 Rfe8 31.Re7 Qf8 32.Re3 Bc8 33.h3 Bd7 34.Ne2 c5 35.Ng3 Kg8 36.Nxf5 Bxf5 37.Qxf5 Rxd6 38.Qg5+ Kh8 39.Rxe8 Nxe8 40.Qe5+ Nf6 41.g4 Rd1+ 42.Kf2 Qd6 43.Qxd6 Rxd6 44.g5 Nd5 45.Re8+ Kg7 46.Kf3 Nb4 47.Re7+ Kg8 48.Re2 Nc6 49.c3 Rd3+ 50.Kg4 Kf7 51.h4 Ne7 52.h5 Nd5 53.f5 Re3 54.g6+ hxg6 55.fxg6+ Kg7 56.Rd2 Nf6+ 57.Kf4 Re4+ 58.Kf3 Rh4 59.Rd6 Rxh5 60.Rxb6 Rh3+ 61.Kg2 Rh6 62.Rc6 Rxg6+ 63.Kf3 Rg5 64.b4 cxb4 65.cxb4 Rb5 66.Rc7+ Kg6 67.a3 Nd5 68.Rc6+ Kf5 69.Rc5 Rxc5 70.bxc5 Ke5 71.a4 Nc7 72.Ke3 Kd5 73.a5 Kxc5 74.Kd3 Kb5 75.Kc3 1/2-1/2

(6) Askin,David (2013) - Tsodikova,Natalya (2185) [E63]

Mechanics' Spring TNM: 2000+ San Francisco (6.6), 23.04.2019

[Winslow,Elliott]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 0-0 5.g3 d6 6.Bg2 Nc6 7.0-0 a6 8.Re1 Rb8 9.Rb1 e5 10.d5 Ne7 11.e4 Nd7 12.b4 h6 13.a4 f5 14.Ba3 Nf6 15.Nd2 Rf7 16.a5 fxe4 17.Ndxe4 Nf5 18.b5 axb5 19.Nxb5 Bf8 20.Qd2 Kg7 21.Rb2 b6? 22.Na7 Bd7 23.axb6 cxb6 24.Nb5?! [24.Nc6!] 24...Bxb5 25.Rxb5 Nd4 26.Rbb1 Nxe4 27.Bxe4 Ra8? 28.Bb2 Nf3+ 29.Bxf3 Rxf3 30.Bc1 [30.Kg2! Qf6 31.Qe2 Rf5 32.f4] 30...Kh7 31.Qb4 Qf6 [31...Rb8 32.Be3 h5] 32.Be3 Rb8 33.Ra1 [33.Qa4!] 33...Be7 34.Ra7 Kg8 35.Qb5 Rf8 36.Qxb6 Rf7 37.Ra2 Bd8 38.Qc6 Kg7 39.c5 Be7 40.cxd6 Bxd6 41.Bc5 Bxc5 42.Qxc5 h5 43.Ra7 h4 44.Rxf7+ Kxf7 45.Qc7+ Qe7 46.Qxe5 Qxe5 47.Rxe5 hxg3 48.hxg3 Rd3 49.Kg2 Kf6 50.f4 Rd1 51.Kf3 Rd2 52.Kg4 Rd3 53.Re6+ Kf7 54.Rd6 Kg7 55.Kh4 Kf7 56.g4 Rd4 57.Kg5 Rd1 58.Rf6+ Ke8 59.d6 1-0

(7) Hakobyan,Sos (1829) - Ivanov,Aleksander (2171) [C07]

Mechanics' Spring TNM: 2000+ San Francisco (6.7), 23.04.2019

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 Qxd5 5.Ngf3 cxd4 6.Bc4 Qd6 7.0-0 Nf6 8.Nb3 Nc6 9.Nbxd4 Nxd4 10.Nxd4 a6 11.Re1 Qc7 12.Bb3 Bd6 13.Nf5 Bxh2+ 14.Kh1 0-0 15.Nxg7 Rd8 16.Qf3 Kxg7 17.Bh6+ Kg6 18.c3 Nh5 19.Bc1 Bf4 20.g4 Ng3+ 21.fxg3 Bxc1 22.Bc2+ Kg7 23.Raxc1 Bd7 24.Kh2 Bc6 25.Qe3 Qa5 26.Rf1 Rd7 27.Rf2 h6 28.Rcf1 Qg5 29.Qf4 Rad8 30.Qf6+ Qxf6 31.Rxf6 Rd2+ 32.R6f2 Bb5 33.Bd3 R8xd3 34.Kh3 Rxf2 35.Rxf2 Rd1 0-1

(8) Kondakov,Adrian (2066) - Uzzaman,Ashik (1931) [B72]

Mechanics' Spring TNM: 2000+ San Francisco (6.8), 23.04.2019

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 a6 7.f3 b5 8.Qd2 Bb7 9.a4 b4 10.Na2 e5 11.Nb3 a5 12.Bb5+ Bc6 13.c3 Bxb5 14.axb5 d5 15.Nxb4 Bxb4 16.cxb4 0-0 17.0-0 Nbd7 18.bxa5 dxe4 19.b6 exf3 20.Rxf3 Qc8 21.Rc1 Qa6 22.Bh6 Rfc8 23.Rfc3 Rxc3 24.Qxc3 Ng4 25.Be3 Qe2 26.b7 Rf8 27.Bc5 Nxc5 28.Qxc5 Rd8 29.b8Q Rxb8 30.h3 Ne3 31.Qc6 Rxb3 32.Qe8+ Kg7 33.Qxe5+ Kh6 34.Qf4+ Kh5 35.Qe5+ f5 36.Qh2 Nxg2 37.Qxg2 Qe3+ 38.Kh2 Qf4+ 39.Kh1 Qxc1+ 40.Kh2 Rxb2 41.a6 Rxg2+ 42.Kxg2 Qc6+ 43.Kg3 Qxa6 44.h4 Qd3+ 45.Kf4 Qe4+ 46.Kg3 Qxh4+ 47.Kf3 Qg4+ 48.Ke3 Kg5 49.Kd3 Qe4+ 50.Kc3 Qd5 51.Kb4 Qc6 52.Kb3 Kf4 53.Kb2 Ke3 54.Kb1 Kd2 55.Kb2 Qb5+ 56.Ka2 Kc2 0-1

(9) Jensen,Christian (1815) - Wong,Russell (2200) [E11]

Mechanics' Spring TNM: 2000+ San Francisco (6.9), 23.04.2019

[Winslow,Elliott]

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2 0-0 5.a3 Be7 6.e3 [6.e4 d5 7.e5 Nfd7 8.Bd3 c5 9.h4!?] 6...c5 7.Bd3 d5 8.cxd5 exd5 9.b3 Nc6 10.Bb2 Bg4 11.Qc2 cxd4 12.Nxd4 Rc8 13.Qb1 Bd6 14.N2f3 Re8 15.h3 Bxf3 16.Nxf3 Ne4 17.Qd1 Ng3?! [17...Qa5+!=/+] 18.fxg3 Bxg3+


19.Ke2? [19.Kd2! Qb6 20.Kc2!! (20.Kc1!!) 20...Na5+ 21.Kb1 Nxb3 22.Nd4 Nxa1 23.Kxa1+/-] 19...Rxe3+?? [19...Qb6 20.Bc1=] 20.Kxe3+- Qe7+ 21.Kd2 Nd4 22.Qb1! Nxf3+ 23.gxf3 Bf4+ 24.Kd1 Qe3 25.Bxh7+ Kf8 26.Qd3 1-0

(10) Munkhchuluun,Tsegmed (2125) - Askin,Michael (1941) [D43]

Mechanics' Spring TNM: 2000+ San Francisco (6.10), 23.04.2019

[Winslow,Elliott]

1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.Nf3 e6 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 g6 8.Bd3 Bg7 9.0-0 Nd7 [9...dxc4 10.Bxc4 Nd7] 10.cxd5 exd5 11.e4 dxe4 12.Nxe4 Qf4 13.g3 Qc7 14.Qc2 Nb6 15.Qc5 Be6 16.Nd6+ Kd8 17.Ne4 Nd5 18.a3 Qb6 19.Qc2 Re8 20.Nd6 Re7 21.Rfe1 Kd7 22.Nc4 Qd8 23.Nce5+ Kc7 24.b4 a6 25.Rac1 Qe8 26.Qc5 Nb6 27.Qa5 Qd8 28.Rc5 Kd6 29.Nd2 Bxe5 30.Rcxe5 Nd5 31.Qc5+ Kd7 32.Nc4 Qc7 33.Ne3 Qd6 34.Nxd5 cxd5 35.Qa5 Qc6 36.b5 Qc7 37.b6 Qd6 38.Rc1 Rc8 39.Ree1 Rc6 40.Bc2 Rxb6 41.Ba4+ Kd8 42.Rb1 Bh3 43.Rxe7 Kxe7 44.Qxb6 Qxa3 45.Qc5+ Qxc5 46.dxc5 Kd8 47.Rxb7 Kc8 48.Rxf7 1-0

(11) Davila,Carlos (2075) - Anderson,Michael (1943) [B43]

Mechanics' Spring TNM: 2000+ San Francisco (6.11), 23.04.2019

[Winslow,Elliott]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 b5 6.Bd3 Bc5 7.Nb3 Be7 8.0-0 Bb7 9.f4 d6 10.Qe1 Bh4 11.Qe3 Nd7 12.Bd2 Qb6 13.Nd4 Bf6 14.Nce2 Ne7 15.Kh1 e5


16.Nf5 Nxf5 17.Qxb6 Nxb6 18.fxe5 dxe5?! [18...Bxe5-/+ 19.exf5 Bxb2 20.Rab1 Be5 21.c4 0-0! 22.cxb5 axb5 23.Rxb5 Ba6 24.Rb3 Bxd3 25.Rxd3 Rxa2-/+ Black's position was just as exposed as White's] 19.Rxf5 0-0 20.Ng3!? (A red flag, which Black doesn't quite appreciate (the danger that is)) [20.Raf1 Bc8 21.R5f3 Be6] 20...Bc8?


[20...Be7! (computer, or at least alert defensive move) 21.Rxe5?! Bf6 22.Rc5 Bxb2] 21.Rxf6!? gxf6 22.Nh5 So sf10 just gives 0.00 everywhere -- no!, wait... 22...Nd7 [22...f5! 23.exf5 Bb7 24.Bh6 Rfd8 25.Re1 Rd6 26.f6 Nd7 27.Re3 Nf8! 28.Rxe5 Ng6 29.Re1 Nh4 counterattack! But it's good for no more than even still.] 23.Rf1 [23.Bh6 Re8 24.Rf1 Re6 25.Ng7 Rc6 26.Nf5 Kh8 27.Bg7+ Kg8 28.Bh6 That's why 0.00/0 ] 23...Re8 [23...Kh8!?=/+] 24.Rf3 [24.Bh6] 24...Re6 [24...Kh8=/+ 25.Nxf6?! Nxf6 26.Rxf6 Kg7-/+] 25.Rg3+ Kh8 26.Bh6?!=


[26.Ng7!? when 26...Nc5!? is best, but more than a bit plus for White] 26...f5?? It looked like a breakout defensive idea, but it happens to lose. [26...Rd6 27.Bg7+ Kg8 28.Nxf6+ Nxf6 29.Bxf6+ Kf8 30.Bxe5 Rg6 is certainly still interesting, but after ...Bb7 Black's other rook finally gets going. Probably just equal] 27.Bg7+ Kg8 28.exf5+- Rb6 29.Bh6+ [29.Be4! will at the very least pick off an exchange along with another pawn, pretty easy win 29...Rab8 a) 29...Bb7? 30.Bxb7 Rxb7? 31.Bxe5+ Kf8 32.Bd6+ Ke8 33.Rg8+ Nf8 34.Nf6+ Kd8 35.Rxf8#; b) 29...Ra7 30.Bh6+ (30.Rc3 Rb8 31.Bh6 Kh8 32.Rg3 Rb6 33.Bd5! is sf10 churning and reaching the same position 33...Nc5; or 30.Bd5!! if you want to be fancy; 30.Bxe5+ Kf8 31.Bd4 is the aforementioned boring won ending -- note 31...Rd6 32.Bxa7 Rd1+ 33.Bg1) 30...Kh8 (When the computer sees mate it gives 30...Rg6 as slightly better...) ; ] 29...Kh8 30.f6?? Bb7? [30...Nc5! 31.Rg7? Nxd3 32.cxd3 (32.Rxf7 Be6) 32...Bf5! (32...Be6 33.Rg5=) ] 31.Bg7+ [31.Rg5! intending Ng3-Nf5 and mate threats 31...e4 32.Ng3! (or just 32.Be2) 32...Rg8 (32...exd3? 33.Nf5) 33.Bg7+ Rxg7 34.fxg7+ Kg8 35.Nf5 Re6 36.Be2+/- followed by centralizing the king.] 31...Kg8 32.Bf5?= [32.Rg5!+/-] 32...Rd8? Walks into a crushing pin. [32...Nf8=; 32...Rd6=] 33.Rd3? but it needs to be set up! [33.Bh6+! Kh8 34.Rd3+- when the B/h6 covers key squares d2 and c1! So 34...e4 fails: 35.Rxd7 Rxd7 36.Bxd7 Rd6 37.Bg4 Bc8 38.h3] 33...Bc6?! [33...e4! 34.Rxd7 Rxd7 35.Bxd7 Rd6 36.Bg4 Rd2 37.Kg1 (37.Ng3 Rxc2 (37...h5!?) ) 37...Rxc2 Black's berserker rook is enough to draw (37...e3) ; 33...Rc6! 34.c3 Rc5! 35.Bh6 draws as well] 34.Kg1 Rbb8?! [34...b4] 35.Ng3? [35.Rh3! Nf8 (or else 36.Bxh7+!) 36.Ng3 Rd2 (36...Rd1+ 37.Kf2 Rd2+ 38.Ke3 Rxg2 39.Bxf8 Kxf8 40.Rxh7 Kg8 41.Rh5 Rb6 42.Bh7+ Kf8 43.Be4 Ke8 (43...Kg8 44.Nf5 Kf8 45.Bxg2) 44.Bxg2 Bxg2 45.Rxe5+ Kd8 46.Rf5 (46.Nh5) ) ] 35...Nb6?


[35...Nf8 heading for g6 when much of the danger passes] 36.Bg4? [36.Bh3! is the accurate, only way to an advantage now. 36...h5 (36...Bd7 37.Bxd7 Nxd7 38.Nf5 Nxf6 39.Bxf6+-) 37.Nf5 Kh7 38.Nh6 Be4! 39.Nxf7 Rxd3 40.cxd3 Bxd3+/-] 36...Rxd3??


[Black absolutely must play 36...h5! immediately -- and this is the only way for an advantage -- now for Black! 37.Bxh5 Rxd3 38.cxd3 (38.Nf5 Rd7!-+) 38...Bd7!-/+] 37.Nf5!! [37.cxd3?? Bd7!-+] 37...h5 38.Ne7+ Kh7 39.Bf5# 1-0

(12) Persidsky,Andre (1814) - Gaffagan,Steven (2019) [D79]

Mechanics' Spring TNM: 2000+ San Francisco (6.12), 23.04.2019

[Winslow,Elliott]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 0-0 5.Nf3 c6 6.Bg2 d5 7.cxd5 cxd5 8.Ne5 [8.0-0; 8.Qb3!?] 8...Nc6 [8...Bf5!?; 8...e6 9.0-0 (9.Bg5!?) 9...Nfd7 10.f4 is the "big player" line.] 9.Nxc6 [9.0-0] 9...bxc6 10.0-0 Bf5 [10...e5!? 11.dxe5 Ng4] 11.f3!? Ambitious -- perhaps too. [11.Na4; 11.Bf4] 11...h5 After some time, the Stockfish Seal of Approval! [11...Qb6 is the only move played until now (3 games), when 12.Na4 is a lame draw offer: 12...Qb5 13.Nc3 Qb6] 12.e4?! Gets loose. Probably White should get back to positional themes, i.e. c5: [12.b3; 12.Na4; Even 12.Be3 a la Korchnoi Tarrasch QGD games where he'd stink his bishop on f2 before anything else (and there wasn't much else).] 12...dxe4 13.fxe4 Bg4=/+ 14.Qa4 Qb6?!= [14...Nd7! 15.e5 c5!=/+ Black is happy to trade his sleepy rook for White's key bishop] 15.e5 [15.h3 Be6 16.Be3 Qxb2 17.Rfc1=] 15...Nd5 16.h3? Be6=/+ ...c5 will undermine White's center 17.Kh2?! [17.Rf2 to get developed] 17...Rad8 [17...Rfd8-/+] 18.Ne4 Nc7 19.Nc5?! [19.Be3 Bxe5 20.dxe5 Qxe3 21.Qxc6] 19...Bd5 20.Bxd5 Rxd5 21.Qb3? Nb5?! [21...Rxd4] 22.Be3? [22.e6!?] 22...Nxd4-+ 23.Bxd4 Rxd4 24.Qc3 Bxe5 25.Rae1 Qc7 26.Qf3


26...Bxg3+ 27.Qxg3 Rd2+ 0-1

(13) Argo,Guy (1909) - Walder,Michael (1989) [A02]

Mechanics' Spring TNM: 2000+ San Francisco (6.13), 23.04.2019

[Winslow,Elliott]

1.f4 c5 2.Nf3 g6 3.c4?! [3.e4!?] 3...Bg7 4.Nc3 Nc6 5.e3 d6 6.Be2 e5 7.0-0 exf4 8.exf4 [8.d4!?] 8...Nge7 Black is already clearly better. Let's put it this way: two good bishops vs. two bad bishops. 9.a3 0-0 10.d3 d5! and then there's this 11.Bd2 Nd4?! [11...Bf5; 11...Re8; 11...dxc4 12.dxc4 Bf5] 12.Nxd4 Bxd4+ [Stockfish notices 12...dxc4!! 13.Ndb5 (13.dxc4 cxd4) 13...cxd3; 12...cxd4 13.Nxd5 Nxd5 14.cxd5 Qxd5=] 13.Kh1 dxc4 14.dxc4 Be6 15.Qb3 a6?! [15...Nf5!] 16.Qxb7? [16.Rad1] 16...Rb8-+ 17.Qxa6?! [17.Qf3] 17...Rxb2 18.Rad1 Bc8 [18...Nf5!] 19.Qa4 [19.Qa8] 19...Bd7 20.Nb5 Nf5 21.Bg4 Bc6! 22.Bxf5 gxf5 23.Qa6 Be4? [23...Qf6-+ (Strongly threatening ...Bxg2+!) 24.Rf3 Ra8] 24.Qh6? [I can not tell you why Stockfish likes 24.Qd6 , nor why 24...h5! is the best reply] 24...f6 (not that this is bad or anything, [but 24...Be3!! 25.Bxe3 Rxg2! really clinches things] 25.Qh4 [25.Qh3] 25...Qa8-+ [25...Rf7 about as good] 26.Qh3? [26.Qg3+ Kh8 27.Nd6 Rg8?? (27...Bc6; 27...Qc6; 27...Ra2; 27...Rb3) ] 26...Rb3-+ [26...Rd8 "squarely better" (shrug)] 27.Qxb3?? probably with no time [27.Bc3 Kh8 28.Rd2 (28.Nxd4 cxd4 29.Rxd4 Rxc3!-+ the only way to win 30.Qxc3 Bxg2+ 31.Kg1 Rg8!-+ and here) 28...Rg8] 27...Bxg2# 0-1

(14) Melville,Cailen J (1941) - Ricard,Bruce (1892) [E04]

Mechanics' Spring TNM: 2000+ San Francisco (6.14), 23.04.2019

[Winslow,Elliott]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.g3 dxc4 6.Bg2 b5 7.0-0 Bb7 8.Ne5 Qb6 9.b3 cxb3 10.Qxb3 Be7 11.a4 a6 12.axb5 axb5 13.Nc4 Qd8! 14.Rxa8 Bxa8= 15.Nxb5?? (Flawed!) [15.Ne3; 15.Nd2; 15.Nb2; 15.Ne5?! Qxd4-/+] 15...cxb5 16.Qxb5+ Nbd7 17.Bxa8 Qxa8 18.Ne5 Qd5 19.Qa4 0-0 20.Nc6 Bd6 21.Bf4 Re8 22.Be5 Nxe5 23.dxe5 Bxe5 24.Ne7+ Rxe7 25.Rd1 Qxd1+ [Even better is the boring 25...Qc5 26.Rd8+ Ne8 27.Rxe8+ Rxe8 28.Qxe8+ Qf8] 26.Qxd1 Rd7 27.Qa4 Bb8 28.Kg2 Rd8 29.Qa5 Rf8 30.h3 Nd5 31.Qa3 Bc7 32.Qc5 Bd8 33.Qc6 Bf6 34.Qb7 g6 35.Qc6 Kg7 36.Qb7 h5 37.Qc6 Rb8 38.Qd6 Rb2 39.Kf1 Nc3 40.e3 Ne4 [Tactic: 40...Rxf2+!] 41.Qc7 Rxf2+ 42.Kg1 Rb2 43.Qf4 Ng5 44.Qf1 Ra2 45.Qd3 Nxh3+ 46.Kf1 Ng5 47.Qb3 Rb2 48.Qd3 Nf3 49.Qa3 Nd2+ 50.Kg1 Nc4 51.Qa7 Ne5 52.Qa3 Ng4 53.Qa4 Nxe3 54.Qa7 Nf5 55.Qa8


55...Nxg3?? [55...Bd4+ and; 55...h4 are tied for fastest mate (#13)] 56.Qa3?? [56.Qh8+=; 56.Qg8+=; 56.Qf8+=] 56...Bd4+ 57.Qe3 Bxe3# 0-1

(15) Boldi,Ethan Kazanjian (2058) - Rudyak,Felix (1865) [B30]

Mechanics' Spring TNM: 2000+ San Francisco (6.15), 23.04.2019

1.e4 c5 2.Nf3 d6 3.c4 e5 4.Nc3 Nc6 5.a3 g6 6.Nd5 Bg7 7.b4 Nge7 8.bxc5 dxc5 9.d3 0-0 10.Be2 Nxd5 11.cxd5 Nd4 12.0-0 f5 13.Nxd4 exd4 14.Rb1 Qe7 15.Bf3 c4 16.exf5 Bxf5 17.Re1 Qc7 18.d6 Qxd6 19.Rxb7 Bxd3 20.Ree7 Bf6 21.Red7 Qxd7 22.Rxd7 Rae8 23.h3 Bf5 24.Rxa7 d3 25.Bd2 Be6 26.Rc7 Rb8 27.Rc6 Kf7 28.Qe1 Bd7 29.Rxf6+ Kxf6 30.Bc3+ Kg5 31.Qe7+ 1-0

(16) Kuczek,Kevin W (2003) - Poling,Scott E (1863) [B23]

Mechanics' Spring TNM: 2000+ San Francisco (6.16), 23.04.2019

1.e4 c5 2.Nc3 a6 3.d3 b5 4.g3 Bb7 5.Bg2 e6 6.Be3 Nf6 7.Nh3 d6 8.0-0 Be7 9.Qe2 Qc7 10.f4 b4 11.Nb1 Nbd7 12.Nd2 Nb6 13.f5 exf5 14.Rxf5 g6 15.Rf2 h5 16.Raf1 Rh7 17.Ng5 Rg7 18.Rxf6 1-0

(17) Pane,Gianluca (1863) - Lehman,Clarence (1918) [D09]

Mechanics' Spring TNM: Under 1600 San Francisco (6.17), 23.04.2019

[Winslow,Elliott]

1.d4 d5 2.c4 e5 3.dxe5 d4 4.Nf3 Nc6 5.g3 f6 6.exf6 Qxf6 7.Bg2 h6 8.0-0 Be6 9.Nbd2 0-0-0 10.a3 Rd7 11.Qc2 g5 12.Ne4 Qe7 13.b4 Bg7 14.Bb2 Bf5 15.Nd6+ Qxd6 16.Qxf5 Nge7 17.Qc2 g4 18.b5 Nd8 19.Nd2 Qe6 20.a4 Nf7 21.a5 Ng5 22.c5 Nh3+ 23.Kh1 Qxe2 24.b6 a6 25.c6 bxc6 26.Bxc6 Rhd8 27.Qc4 Qxc4 28.Bxd7+ Rxd7 29.Nxc4 c5 30.Kg2 Kb7 31.Rac1 Ng5 32.Ba3 Ne4 33.Rfe1 Ng5 34.Bxc5 Nf5 35.Ne5 Rd8 36.Nxg4 d3 37.Bb4 Rd7 38.h4 Nf7 39.Bd2 Nd4 40.Bc3 h5 41.Bxd4 Bxd4 42.Red1 Bxb6 43.Nf6 Rd6 44.axb6 Rxf6 45.Rxd3 Kxb6 46.Rb3+ Ka7 47.Rc7+ Ka8 48.Rbb7 Nd8 49.Rb1 (White won after a long time scramble) 1-0

(18) Gray,William (1962) - Newey,Richard (1620) [A06]

Mechanics' Spring TNM: 1600-1999 San Francisco (6.19), 23.04.2019

1.Nf3 d5 2.b3 Bg4 3.Bb2 Bxf3 4.exf3 Nd7 5.f4 Ngf6 6.g3 c5 7.Bg2 e6 8.0-0 b5 9.c4 bxc4 10.bxc4 Rb8 11.Be5 Rb6 12.Nc3 d4 13.Nb5 Nxe5 14.fxe5 Nd7 15.Nxa7 Nxe5 16.f4 Ra6 17.fxe5 Rxa7 18.Bc6+ Ke7 19.Qf3 f6 20.exf6+ Kd6 21.Rae1 Qxf6 22.Qb3 Qxf1+ 23.Rxf1 1-0

(19) Maser,Thomas (1901) - Babb,Kevin (1641) [B18]

Mechanics' Spring TNM: 1600-1999 San Francisco (6.20), 23.04.2019

[Winslow,Elliott]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.Nf3 Nf6 7.Bd3 Bxd3 8.Qxd3 Nbd7 9.0-0 e6 10.b3 Be7 11.Bb2 Qa5 12.c4 h6 13.a3 0-0 14.b4 Qc7 15.Rfe1 Rfe8 [15...a5!?] 16.Rac1 Qb6 [16...a5!?] 17.Rc2 Rad8 [17...a5!] 18.Qc3 Bf8 [18...a5] 19.Rce2 Qc7 [19...Ra8!? 20.Ne4 Nxe4 21.Rxe4 a5] 20.Nd2?! a6 [20...a5; 20...Ra8!] 21.Qf3?! a5 22.Nde4 [22.bxa5] 22...axb4


23.d5? [23.Nxf6+ Nxf6 24.axb4 Bxb4 25.Rc1-/+] 23...cxd5? [23...Nxe4 24.Rxe4 bxa3-+ (24...cxd5-+) ] 24.Nxf6+ Nxf6 25.Bxf6 gxf6 26.Nh5!= dxc4 [26...f5 27.Nf6+ Kg7 28.Nxe8+ Rxe8 29.cxd5 bxa3 30.g4] 27.Nxf6+ [27.axb4!? Re7=] 27...Kh8 28.Nxe8 [28.Qe4! Kg7 29.Nxe8+ Rxe8 30.axb4 Kg8=] 28...Rxe8 29.axb4 Rd8 30.g3 [30.b5] 30...b5?! 31.Re5 [31.Ra2; 31.Ra1] 31...Bxb4? 32.Qf6++- Kh7 33.Rh5 Bd2?! [33...Bf8 34.Re4! Rd1+ 35.Kg2 Qb7 36.f3] 34.Rd1? [34.Re3! is mate in 9: there is no way to put up resistance; 34.Re2; 34.Ree5; 34.f4 Bxf4 35.gxf4 (35.Qxf4) 35...Rg8+ 36.Kf1] 34...Bg5!! 35.Rxh6+! Bxh6 36.Rxd8 Bg7 37.Qh4+ Kg6 38.Qe4+ Kf6?? [38...Kh6 39.Rg8+/-; 38...Kf6 39.Rg8! (39.Qg4; 39.Kf1) 39...Qe5 40.Qg4 +12 should be good] 1/2-1/2

(20) Bradley,Christopher (1604) - Busch,Jonah M (1826) [A15]

Mechanics' Spring TNM: 1600-1999 San Francisco (6.21), 23.04.2019

[Winslow,Elliott]

1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.g3 d5 [5...d6; 5...c6; 5...a5; 5...b6] 6.c5?! [6.cxd5; 6.cxd5; 6.Na3] 6...b6 7.d4-/+ [7.Bg2=/+ bxc5 8.bxc5 Nc6 9.0-0 Rb8 10.Qc2 Bg4 11.d3 Qd7 12.Nbd2 Rfe8 13.Ne5 Rxb2 14.Qxb2 Nxe5 15.Qxe5 Ne4 16.Qf4 Nxd2 17.Qxd2 Bxa1 18.Rxa1 Rb8 19.Qc2 c6 20.Rb1 Qc7 21.e4 dxe4 22.Bxe4 Rxb1+ 23.Qxb1 e5 24.Qb4 Be6 25.a4 Bc8 26.h4 Ba6 27.d4 f5 28.Bc2 e4 29.Bb3+ Kg7 30.Qc3 Kh6 31.Qe3+ Kg7 32.d5 cxd5 33.Qd4+ Kh6 34.Bxd5 Qa5 35.Kg2 Qe1 36.Qe3+ Qxe3 37.fxe3 Bc8 38.Ba8 Kg7 39.c6 Kf6 40.Bb7 Be6 1-0 (40) Neuman,P (2330)-Ungr,D (2155) Czechia 2000] 7...a5 [7...Ne4] 8.a3 (how convenient!) [8.b5 c6!] 8...Ne4 Maybe not so nice! The pressure might be more than White can handle 9.Bg2 bxc5 10.bxc5 Nxc5 11.0-0 a4?! [11...Ne6] 12.Nc3? [12.Nbd2] 12...Nb3-+ 13.Ra2 Ba6! 14.Nd2 [14.Nxd5 Qxd5 just doesn't work] 14...Nxd4 [14...Nxd2 15.Qxd2 Bc4] 15.Qxa4 e6 16.Nf3?! Nbc6 17.Qd1 Bc4 18.Ra1 Nxe2+ 19.Nxe2 Bxb2 20.Rb1 Bxa3 21.Nd2 Bd3 22.Rb3 Bxe2 23.Qxe2 Nd4 24.Qd3 Nxb3 25.Qxb3 Bd6 26.Rd1 c5 27.Qf3 Qc7 28.Nf1 c4 29.Ne3 Be5 30.Ng4 Bg7 31.h4 h5 32.Qe2 and 0-1

(21) Cohee,James (1606) - Krasnov,Steven Le (1876) [B51]

Mechanics' Spring TNM: 1600-1999 San Francisco (6.22), 23.04.2019

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.a4 Qc7 5.0-0 a6 6.Be2 Ngf6 7.d3 e6 8.Nc3 Be7 9.Re1 0-0 10.h3 h6 11.Bf4 Re8 12.Qd2 Bf8 13.Bf1 b6 14.g3 Bb7 15.Bg2 Rad8 16.Rad1 Qb8 17.Re2 Qa8 18.Rde1 e5 19.Be3 d5 20.exd5 Nxd5 21.Nxd5 Bxd5 22.Nh4 Nf6 23.Bxd5 Qxd5 24.Qc3 Qe6 25.Kh2 Qc6 26.b3 g6 27.Qc4 b5 28.axb5 axb5 29.Qc3 Rc8 30.Bc1 Nd5 31.Qd2 Bg7 32.Bb2 c4 33.bxc4 bxc4 34.dxc4 Qxc4 35.Bxe5 Red8 36.Bxg7 Kxg7 37.Qd3 Qxd3 38.cxd3 Nb4 39.Rd1 Rxd3 40.Rxd3 Nxd3 41.Kg2 Rc1 42.Nf3 Kf6 43.h4 g5 44.hxg5+ hxg5 45.Rd2 Rc3 46.g4 Nf4+ 47.Kg3 Kg6 48.Ra2 f6 49.Ra4 Rc7 50.Rxf4 gxf4+ 51.Kxf4 Rc4+ 52.Kg3 Rc3 53.Kg2 f5 54.Nh4+ Kg5 55.Nxf5 Kxg4 56.Ne3+ Kg5 1/2-1/2

(22) Xu,Jayden (1669) - Lamstein,Joshua D (1655) [D55]

Mechanics' Spring TNM: 1600-1999 San Francisco (6.23), 23.04.2019

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.Bg5 Be7 6.e3 d5 7.Be2 0-0 8.0-0 Nbd7 9.Rc1 c5 10.Nd2 h6 11.Bf4 cxd4 12.exd4 a6 13.Bf3 Nb8 14.Nb3 Nc6 15.cxd5 Nxd5 16.Bxd5 exd5 17.Qf3 Bd6 18.Bxd6 Qxd6 19.Qxd5 Qxd5 20.Nxd5 Rad8 21.Nxb6 Nxd4 22.Nxd4 Rxd4 23.Rc7 Rd5 24.Rd7 1-0

(23) Perlov,Alexander (1720) - McKellar,Daniel (1872) [D45]

Mechanics' Spring TNM: 1600-1999 San Francisco (6.24), 23.04.2019

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Qc2 Bd6 7.g4 Nxg4 8.Rg1 Ndf6 9.e4 dxe4 10.Nxe4 Nxe4 11.Qxe4 Nf6 12.Qc2 g6 13.Bd2 Qc7 14.Bc3 Bf4 15.Bd3 Bd7 16.Qe2 0-0-0 17.Rg2 Rde8 18.Ne5 Rhf8 19.Bd2 Nh5 20.Rg4 Bxd2+ 21.Qxd2 f6 22.Nxd7 Qxd7 23.Be2 f5 24.Rh4 Nf6 25.Qa5 g5 26.Rh3 Qxd4 27.c5 Ne4 28.Re3 Qxc5 29.Qa4 Qb6 30.Rc1 Kb8 31.Bf3 Qxb2 32.Rc2 Qb1+ 33.Ke2 Rd8 34.Rd3 Rxd3 35.Kxd3 Rd8+ 36.Ke3 Qe1+ 0-1

(24) Cortinas,Martin A (1686) - Babayan,Gagik (1806) [C01]

Mechanics' Spring TNM: 1600-1999 San Francisco (6.25), 23.04.2019

1.e4 e6 2.d4 d5 3.exd5 exd5 4.Nf3 Nf6 5.c4 Bb4+ 6.Bd2 Qe7+ 7.Be2 0-0 8.0-0 Bxd2 9.Nbxd2 c6 10.Re1 Qc7 11.Rc1 Qf4 12.g3 Qd6 13.c5 Qc7 14.Bf1 h6 15.Qc2 Bg4 16.Bg2 Qc8 17.Ne5 Bf5 18.Qc3 Nbd7 19.f4 Re8 20.b4 a6 21.a4 Nxe5 22.fxe5 Nh7 23.Nf3 Nf8 24.Re3 Be6 25.Rce1 Ng6 26.Nd2 Ne7 27.Rf1 Rf8 28.Qd3 Bf5 29.Qe2 Qe6 30.Qf2 Bg4 31.Bf3 Bh3 32.Bg2 Bf5 33.Nf3 Rae8 34.Nh4 Bh3 35.Bxh3 Qxh3 36.Rf3 Qe6 37.Kg2 Ng6 38.Nf5 Rd8 39.Nd6 Rd7 40.b5 axb5 41.axb5 cxb5 42.Rb3 f6 43.exf6 Rxf6 44.Qe1 b4 45.Qxe6+ Rxe6 46.Rxb4 Re2+ 47.Rf2 Ree7 48.Rfb2 Nf8 49.Rxb7 Ne6 50.Rxd7 Rxd7 51.Rb4 Kf8 52.Kf2 Ra7 53.Rb8+ Ke7 54.Nc8+ 1-0

(25) Ochoa,Jason B (1738) - Casares Jr,Nick (1600) [A30]

Mechanics' Spring TNM: 1600-1999 San Francisco (6.26), 23.04.2019

[Winslow,Elliott]

1.Nf3 Nf6 2.c4 c5 3.g3 Nc6 4.Bg2 e5 5.0-0 h6 6.Nc3 d5 7.cxd5 Nxd5 8.d3 Be6 9.Bd2 Bd6 [9...Be7] 10.Rc1 b6 11.Qa4 Rc8 12.e3?! 0-0 13.d4 f5?! [13...cxd4 14.exd4 Nxc3 15.Bxc3 (15.Rxc3 Nxd4 16.Nxd4 exd4=/+) 15...e4] 14.dxe5 Bb8? [14...Nxe5 15.Nxe5 Bxe5 16.Rfd1+/= (16.Qxa7 Nb4 17.Rfd1 Rf7 18.Qa4 Rd7 19.Be1 Nd3~/=) ] 15.Rfd1 Qe7 16.Nh4 Nxc3 17.Bxc3 Bxe5 18.Ng6 Qe8 19.Nxe5 Nxe5 20.Qxe8 Rcxe8 21.Bxe5 Bxa2 22.f4 Be6 23.Rd6 Rf7 24.Ra1 Rfe7 25.Rad1 Kf7 26.h4 h5 27.Bf3 g6 28.e4 Kg8 29.exf5 Bxf5 30.Bc6 Kf7 31.Bxe8+ 1-0

(26) Robeal,Rafik (1716) - Rakonitz,David (1674) [A47]

Mechanics' Spring TNM: 1600-1999 San Francisco (6.28), 23.04.2019

[Winslow,Elliott]

1.d4 Nf6 2.Nf3 e6 3.e3 b6 4.Bd3 Bb7 5.0-0 c5 6.b3 cxd4 7.exd4 Be7 8.Bb2 0-0 9.Nbd2 Nc6 10.c4 Nb4 11.Bb1 Rc8 12.a3 Na6 13.b4 d6 14.Qe2 Re8 15.Bd3 Nb8 16.Rae1 Bf8 17.Ng5 g6 18.Nge4 Nbd7 19.f3 Qc7 20.Qf2 Nh5 21.Bb1 d5 22.cxd5 Bxd5 23.Rc1 Qb8 24.Nc3 Bb7 25.Rfe1 Nhf6 26.Bd3 Bg7 27.Nde4 Red8 28.Nb5 Nxe4 29.fxe4 a6 30.Nc3 Bh6 31.Rc2 Qf4 32.Qxf4 Bxf4 33.Rf2 Bh6 34.Kh1 Bg7 35.e5 Bh6 36.Be4 Rc7 37.Bxb7 Rxb7 38.Ne4 Rc7 39.g4 Bf8 40.Ref1 Nb8 41.h4 Nc6 42.Rc2 Rcc8 43.Ng5 Rd7 44.Rfc1 Rdc7 45.Ne4 Bh6 46.g5 Bf8 47.Nd6 Rd8 48.Rxc6 Bxd6 Here the scoresheet that made it this far has as its last move "[something] x d6." 1-0

(27) Kim,Andy (1619) - Porlares,Teodoro (1713) [D02]

Mechanics' Spring TNM: 1600-1999 San Francisco (6.29), 23.04.2019

[Winslow,Elliott]

1.d4 Nf6 2.Nf3 e6 3.Bf4 d5 4.Nbd2 Bd6 5.Bg3 0-0 6.e3 c5 7.dxc5 Bxc5 8.Bd3 Nc6 9.0-0 Nh5 10.Be5 Nxe5 11.Nxe5 Nf6 12.Qf3 Bd6 13.Ng4 Nxg4 14.Qxg4 e5 15.Bf5 e4 16.Nb3 b6 17.Qh3 h6 18.Bxc8 Rxc8 19.c3 Be5 20.Rfd1 a5 21.Rd2 [21.Nd4 a4?! 22.a3] 21...a4 22.Nd4 a3=/+ 23.bxa3 Rxc3


24.Ne6?? The idea is nice, but there's a flaw... [24.Rad1!=] 24...Qc8! [24...fxe6?? 25.Qxe6+] 25.Nxf8? [At least after 25.Nd4 Rc1+ 26.Rd1 Qxh3 27.gxh3 Rxa1 28.Rxa1 Bxd4 29.exd4 Ra8 Black is going to have to win a rook ending. 30.Rb1 Rxa3 31.Rb5 Ra5! 32.Rxb6 Ra4 (it's the d-pawns that matter)] 25...Rc1+ 26.Rd1 Qxh3?? [26...Bxa1 and White still can't take on c8. Mate is still in the air. (Stockfish says in 12!) 27.Qg4 (or 27.Qh5 Qc2) 27...Qc2! Squash. (27...Qxg4 28.Rxc1 Bb2) ] 27.gxh3-/+ Rxa1 28.Rxa1 Bxa1 29.Nd7 b5 30.a4?! [30.Nb6 d4 31.exd4 Bxd4 32.Nd5 Be5 33.Ne7+ Kf8 34.Nc6 Bc3 Black's bishop keeps dominating White's knight.] 30...bxa4 31.Nb6 d4! 32.Nxa4 d3 You'd think Black should win with this monster, but it's not so easy! 33.Kf1


33...Be5?!= [33...f5! was the computer's line, but... 34.Nb6 Kf7 35.a4 Bc3 36.Nc4 Ke6 37.a5 Bb4 38.a6 Bc5 39.Na3 (39.Na5 Kd7 40.Nb3 Bb6 41.Nd4 g6-/+ (41...Bxd4?? 42.exd4 Kc7 43.d5+-) ) 39...Kd5 40.Nb5 Kc4! (40...Kc6 41.a7 Kb7 42.a8Q+ Kxa8 43.Nc7+ Kb7 44.Ne6=) 41.a7 Bxa7 42.Nxa7 Kc3 43.Nb5+ Kc2 44.Nd4+ Kc1 45.Nb3+ Kd1 is winning! Black takes his time cashing in his d-pawn for the knight. 46.h4 (Let's let Stockfish 10 take it a bit further: 46.Nd4 d2 47.h4 g5 48.hxg5 hxg5 49.h3 Kc1 50.Nb3+ Kc2 51.Nxd2 Kxd2 Yes, it sees mate in 17...) 46...g5 like above...] 34.Ke1? Not urgent! [34.Nc5 f5 35.a4 Bxh2 36.a5 Bb8 is one of those "0.00" everywhere positions. 37.a6 Kf7 38.Nd7 Ba7 39.Ne5+ Kf6 40.Nc6 Bb6 41.a7 Bxa7 42.Nxa7 Kg5 43.Nc8 Kh4 44.Ne7= still 0.00/0 ] 34...Bxh2 [34...f5 35.Nc5 Kf7-+ is a bit more accurate -- it's Black who needs to centralize the king.] Now Black plays with precision! 35.Kd2 [35.Nc3 f5 36.Nb5 g5 37.Nd4 g4] 35...g5 36.Nc5 f5 37.a4 Bc7 38.f3?! it just gets easier (for Black) 38...Ba5+ 39.Kd1 exf3 40.Nxd3 g4 41.hxg4 fxg4 42.Ne5 h5 43.e4 Bc3 44.Ng6 Kf7 45.Nh4 [45.Nf4 g3] 45...Kf6 46.Nf5 Ke5 47.Ng3 h4 48.Nf5 h3 49.Ng3 h2 The proverbial "Epic Battle"! 0-1

(28) Mays,Jerry L (1700) - Boldi,Nicholas Ar (1571) [C02]

Mechanics' Spring TNM: 1600-1999 San Francisco (6.30), 23.04.2019

[Winslow,Elliott]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Bd7 6.a3 cxd4 7.cxd4 f6 8.Be2 [8.Bd3; 8.b4] 8...Qc7 9.Bf4 Be7?? [9...fxe5 10.dxe5!? (10.Nxe5 Bd6) 10...Be7 (10...Nh6) ] 10.Qd2?? [10.exf6 Qxf4 11.fxg7 Bf6 12.g3 Qg4 13.gxh8Q Bxh8 14.h3 Qg7 15.Bb5 Nxd4 16.Bxd7+ Kxd7 17.Nbd2+- here come the rooks] 10...fxe5 [10...g5!? 11.exf6 Qxf4 12.Qxf4 gxf4 13.fxe7 Kxe7+/=] 11.Nxe5+/- Nf6 12.Nxc6?! [12.Nc3] 12...Qxc6 13.Nc3 a6 14.Rc1 Qb6 15.0-0 0-0 16.Be5?! Qd8?! [16...Rf7] 17.f3?! Bc6 18.Bd3 Nd7 19.Qc2? [19.Bf4 Rxf4 20.Qxf4 Bg5 21.Qg4!? (21.Qd6 Bxc1 22.Qxe6+ Kh8 23.Rxc1 Qb6 Black comes roaring back) 21...Bxc1 22.Rxc1+/=; 19.f4 Qb6 20.Kh1 Nxe5 21.fxe5 Kh8] 19...h6? [19...Nxe5! 20.Bxh7+ Kh8 21.dxe5 Bg5 22.Rce1 d4-/+] 20.Bh7+?= [20.Bg3+/- Qb6 21.Bf2] 20...Kh8


21.Bxg7+? Shouldn't work [21.Bg3+/=] 21...Kxg7 22.Qg6+ Kh8 23.Qxh6? [23.Bg8 Nf6 24.Bxe6 Bd6 25.Qxh6+ Nh7-/+ if you can believe the usual metal] 23...Bg5 24.Qh3 Bxc1?? Any defensive move here would win: [24...Kg7; 24...Rf4; 24...Qf6; and of course tossing in 24...Be3+ is an option] 25.Bf5+?! [25.Bg6+ Kg7 26.Qh7+ Kf6 27.Ne4+ dxe4 28.fxe4+ Bf4 29.e5+ (29.Rxf4+ Kg5 30.Qh5+ Kxf4 31.Kf2 gets there) 29...Nxe5 30.Rxf4+ Kg5 31.Qh5+ Kxf4 32.Qxe5+ Kg4 33.Qg3# clean!] 25...Kg7 [It is my duty to point out that a certain computer program, which shall not be named, here points out that the move 25...Qh4 greatly increases the number of moves necessary to achieve checkmate, from three after the text to twenty-two. Against certain opponents this is important. 26.Qxh4+ Kg7 27.Qh7+ Kf6 28.Qg6+ Ke7 29.Qxe6+ Kd8 30.Rxc1 and mate in a further 17.] 26.Qh7+ Kf6 27.Qg6+ Ke7 28.Qxe6# 1-0

(29) Tamondong,Cesar B (1600) - Drury,Mark L (1878) [D02]

Mechanics' Spring TNM: 1600-1999 San Francisco (6.31), 23.04.2019

[Winslow,Elliott]

1.d4 d5 2.Nf3 Nf6 3.g3 Bf5 4.Bg2 h6 5.0-0 e6 6.c4 Be7 7.Qb3 Qc8 8.Nc3 c6 9.Bf4 0-0 10.Rac1 dxc4 11.Qxc4 Nbd7 12.Ne5 Nxe5 13.Bxe5 Qd7 14.e4 Bg6 15.Rfd1 Rfc8 16.Qe2 Qe8 17.h3+/- Rd8 18.g4 Rd7 19.f4 Rad8 20.Kh2 Qf8 21.f5 exf5 22.exf5 Bh7 23.Ne4 Nxe4 24.Bxe4 Bd6 25.Qf3 Qe7 26.Bf4 Bxf4+ 27.Qxf4 Rxd4 28.Rxd4 Rxd4 29.Qb8+ Rd8 30.Qf4 Qd6 31.Kg3 Kf8 32.Qxd6+ Rxd6 33.Rc3 f6 34.Ra3 a6 35.Rb3 Rd7 36.Rc3 Bg8


37.b3 Ke7 38.Rd3 Rxd3+ 39.Bxd3 Kd6 40.Kf4 Bd5 41.h4 b5 42.g5 hxg5+ 43.hxg5 c5 44.Kg4 Ke5 45.gxf6 gxf6 46.a4 bxa4 47.bxa4 a5 48.Bb5 Be4 49.Bc4 Bxf5+ 50.Kf3 Bc2 51.Bb5 Kd4 52.Ke2 f5 53.Kd2 Be4 54.Bf1 c4 55.Kc1 0-1

(30) Mercado,Adam (1714) - Tillman,Glenn D (1729) [B98]

Mechanics' Spring TNM: 1600-1999 San Francisco (6.32), 23.04.2019

[Winslow,Elliott]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Nbd7 [8...Qc7; 8...h6 9.Bh4 Nbd7] 9.Bh4 [I remember learning, like fifty years ago, that the flaw to this move order was 9.Bc4 Qc7 10.Bxe6 fxe6 11.Nxe6] 9...Rb8 Okay, never mind 10.Be2 Qc7 11.Bg3 b5 12.a3 Bb7 13.Qe3 Nc5 14.Bf3 Rd8 15.b4 Ncd7 16.h3 Nb6 17.Qd3 Nc4 18.a4 d5 19.exd5 Bxb4 20.axb5 Nb2 21.Qe3 Qxc3+ 22.Kf2 Qxe3+ 23.Kxe3 Nxd5+ 24.Bxd5 Bxd5 25.Rxa6 Bc5 26.c3 0-0 27.Rb1 Nc4+ 28.Kd3 Bxd4 29.cxd4 Ra8 30.f5 Rxa6 31.bxa6 Na5 32.a7 Nc6 33.Bb8 Nxa7 34.Bxa7 exf5 35.g3 Be4+ 0-1

(31) Reyes,Victor (1290) - Khamkar,Susheel S (1033) [D00]

Mechanics' Spring TNM: Under 1600 San Francisco (6.33), 23.04.2019

[Winslow,Elliott]

1.d4 d5 2.f4 Not Bf4, pawn. 2...Bf5 3.Nf3 c5 4.c3 e6 5.e3 Nc6 6.a3 Oh great -- BOTH SCORESHEETS have Black playing 4...e6 and 6...e6. Just give me a minute... Okay, I got it: 6...f6 7.Bd3 Nh6 8.0-0 Bd6 9.Qe2 0-0 10.e4 c4 11.exf5 cxd3 12.Qxd3 Nxf5 13.Be3 Qc7 14.Ne1 Rae8 both scoresheets: "Re8" 15.Nd2 g6 16.Qe2 e5 17.Qg4?? Nxe3 18.Qh3 Nxf1 19.Kxf1 exd4 20.Nef3 ("Nf3") 20...dxc3 21.bxc3 Bxf4 22.Nb3 Ne5 23.Nfd4 ("Nd4" on one scoresheet, missing move entirely on the other!) 23...Qc4+ 24.Kg1 Nd3 25.Qf3 Re3 26.Qf1 Qxc3 27.g3 Rfe8 ("Re8" x2) 28.gxf4 Re1 0-1

(32) Ansari,Jahaan (1397) - Chan,John (1591) [A46]

Mechanics' Spring TNM: Under 1600 San Francisco (6.34), 23.04.2019

[Winslow,Elliott]

1.d4 Nf6 2.Nf3 c6 3.Nc3 h6 ("John Chan Was Here.") 4.e4 d6 5.d5 Bg4 6.h3 Bxf3 7.Qxf3 Nbd7 8.Bf4 Qb6 9.Rb1 [9.0-0-0!?] 9...g6 10.Bd3 Bg7 11.0-0 0-0 12.Be3 Qd8 13.Qd1 a6 14.Qd2 Kh7 15.Ne2 cxd5 16.exd5 b5 17.Nf4 Ne5 18.Be2 Qd7 19.b3 Rac8 20.Rfe1 Ne4 21.Qa5 Nc3 22.Rbc1 Nxe2+ 23.Nxe2 g5 24.f4 gxf4 25.Bxf4 Ng6 26.Qxa6 Bb2 27.Rb1 Rxc2 28.Qb6 Bg7 29.a4 bxa4 30.bxa4 Qxa4 31.Qb3 Qe4 32.Ng3 Qxg2# 0-1

(33) Otterbach,Renate (1225) - James,Charles (1419) [B23]

Mechanics' Spring TNM: Under 1600 San Francisco (6.35), 23.04.2019

[Winslow,Elliott]

1.e4 c5 2.Nc3 d6 3.f4 e6 4.Nf3 Nf6 5.Bb5+ Bd7 6.Bc4 a6 7.a4 Nc6 8.d3 Qc7 9.Be3 g6 10.0-0 Bg7 11.Qe1 0-0 12.Qh4 Nb4 13.Bb3 d5 14.Ne2 dxe4 15.Ne5 exd3 16.Nxd3 Ne4 17.c3 Nxd3 score unreadable; Renate promised to send her Monroi output but hasn't. 0-1

(34) Carron,Joel (1515) - Morgan,Jerry (1491) [C27]

Mechanics' Spring TNM: Under 1600 San Francisco (6.36), 23.04.2019

1.e4 Nf6 2.Nc3 e5 3.Bc4 Nxe4 4.Qh5 Nd6 5.Qxe5+ Qe7 6.Qxe7+ Bxe7 7.Bb3 c6 8.Nf3 Nf5 9.0-0 d5 10.d4 Be6 11.Ne2 Na6 12.Nf4 Nc7 13.Nxe6 fxe6 14.Re1 Bf6 15.Bf4 0-0-0 16.c3 Nd6 17.Ng5 Bxg5 18.Bxg5 Rde8 19.Bf4 Kd7 20.Be5 Re7 21.Re2 Rf8 22.Rae1 Ref7 23.f3 g5 24.Bc2 Re7 25.Bd3 b5 26.b3 Nce8 27.a4 Nf7 28.axb5 Nxe5 29.Rxe5 Nc7 30.bxc6+ Kxc6 31.Rxg5 Kd6 32.Rh5 Rff7 33.Rhe5 Rf4 34.Ra1 Rg7 35.Kf2 Rh4 36.h3 Rf4 37.Rxa7 Rf8 38.b4 Rfg8 39.g4 Rf8 40.b5 Rgf7 41.Be2 Nxb5 42.Rxf7 1-0

(35) Simpkins,Jerry (1508) - Barreyro,Romeo [B00]

Mechanics' Spring TNM: Under 1600 San Francisco (6.37), 23.04.2019

1.e4 b6 2.f4 Bb7 3.d3 e6 4.Nf3 Be7 5.g3 Nf6 6.Bg2 c5 7.e5 Nd5 8.Nc3 0-0 9.Ne4 d6 10.Qe2 Nc6 11.c3 dxe5 12.fxe5 Qc7 13.d4 cxd4 14.cxd4 Ncb4 15.Kf2 Ba6 16.Qd2 Nd3+ 17.Kg1 Rac8 18.Nc3 Nxc3 19.bxc3 Qxc3 20.Qxc3 Rxc3 21.Bd2 Rc2 22.Bf1 Rfc8 23.a4 Nb4 24.Bxa6 Nxa6 25.a5 b5 26.Rb1 b4 27.Kg2 h6 28.Kh3 Ra2 29.Rhc1 Rxc1 30.Rxc1 Rxa5 31.Rc8+ Kh7 32.Re8 Bg5 33.Bxg5 hxg5 34.Nxg5+ Kg6 35.Kg4 Rd5 36.Nxe6 fxe6 37.Rxe6+ Kf7 38.Rxa6 Rxd4+ 39.Kf3 Rd3+ 40.Ke4 Ra3 41.Rc6 b3 42.Rc7+ Ke6 43.Kd3 Ra5 44.Ke4 Rb5 45.Rc6+ Kd7 46.Rc1 a5 47.Kd4 Rb7 48.Kd5 b2 49.Rb1 a4 50.e6+ Ke7 51.Kc6 Rb3 52.Kc5 a3 0-1

(36) Starr,Albert (1543) - Abdi,Mehron Edwar (1069) [A00]

Mechanics' Spring TNM: Under 1600 San Francisco (6.38), 23.04.2019

1.b4 Nc6 2.b5 Nd4 3.e3 Nf5 4.Bb2 e6 5.Nf3 Bc5 6.e4 Nf6 7.exf5 exf5 8.Be2 0-0 9.0-0 Nd5 10.c4 Nb6 11.d3 Be7 12.Nbd2 d5 13.a4 a6 14.a5 Nd7 15.bxa6 Bf6 16.Bxf6 Nxf6 17.axb7 Bxb7 18.Nd4 Bc8 19.Bf3 c5 20.Nc6 Qd6 21.Bxd5 Nxd5 22.cxd5 Qxd5 23.Ne7+ 1-0

(37) Dubensky,Walter B (1210) - Isreal,Andrew [C47]

Mechanics' Spring TNM: Under 1600 San Francisco (6.39), 23.04.2019

1.Nc3 e5 2.Nf3 Nc6 3.e4 Nf6 4.a3 Bc5 5.Be2 Ng4 6.0-0 Nd4 7.Na4 Nxf3+ 8.Bxf3 Nxf2 9.Rxf2 Bxf2+ 10.Kxf2 d5 11.exd5 Qh4+ 12.Kg1 Qxa4 13.d3 0-0 14.Qe2 Re8 15.Bf4 Qxf4 16.Rf1 Qd4+ 17.Kh1 Qxb2 18.Bh5 g6 19.Bf3 Bf5 20.g4 Bd7 21.h4 Qd4 22.Rg1 c6 23.c4 cxd5 24.Bxd5 Bc6 25.Bxc6 bxc6 26.h5 g5 27.Qf3 Qf4 28.Qxc6 Rab8 29.c5 e4 30.Re1 Qf3+ 31.Kg1 Qg3+ 32.Kf1 Qxd3+ 33.Kg1 e3 34.Qh6 Qd5 35.c6 Rbc8 36.c7 Re6 37.Qxe6 Qxe6 38.Rc1 Qxg4+ 39.Kf1 e2+ 40.Ke1 Qxh5 41.Rb1 Qh1+ 42.Kxe2 Qxb1 43.a4 Rxc7 44.Kf3 Rc4 45.a5 0-1


(38) Jijo,Wilson - Rushton,Peter (1186) [C50]

Mechanics' Spring TNM: Under 1600 San Francisco (6.40), 23.04.2019

1.e4 e5 2.Nf3 Nc6 3.Bc4 h6 4.d4 Bd6 5.d5 Nd4 6.Nxd4 exd4 7.Qxd4 f6 8.0-0 b6 9.Nd2 c5 10.dxc6 dxc6 11.Qd3 Bb7 12.e5 fxe5 13.Qg6+ Kd7 14.Qf7+ Ne7 15.Ne4 Qc7 16.Qe6+ Kd8 17.Nxd6 Rf8 18.Nxb7+ Qxb7 19.Rd1+ Ke8 20.b3 Rf6 21.Qxe5 Kf8 22.Ba3 c5 23.Bd5 Nxd5 24.Qxd5 Rc6 25.Qd7 Rc7 26.Qf5+ Rf7 27.Qd5 Qxd5 28.Rxd5 Rc8 29.Rad1 Ke8 30.Bb2 Re7 31.Re5 c4 32.Rxe7+ Kxe7 33.f4 c3 34.Ba3+ Ke6 35.Rd4 b5 36.Bb4 Rc6 37.Rd3 Kf5 38.g3 a6 39.Rxc3 Re6 40.Kf2 g6 41.Kf3 h5 42.Rc5+ Kf6 43.Rd5 Kf7 44.f5 Rc6 45.c3 g5 46.a4 g4+ 47.Kf4 Rh6 48.Kg5 Rh8 49.Rd7+ Ke8 50.Ra7 1-0

(39) Chui,Kevin - Tabatabai,Ashkon (1138) [C78]

Mechanics' Spring TNM: Under 1600 San Francisco (6.41), 23.04.2019

[Winslow,Elliott]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 Bc5 5.0-0 0-0?! 6.c3?! [6.Bxc6 dxc6 7.Nxe5] 6...d6 7.h3 a6 8.Ba4 b5 9.Bb3 Bb7 10.Nbd2 d5 11.exd5 Nxd5 12.Ne4 Qe7?? 13.Bxd5 Rad8 14.Bg5 Qd7 15.Bxd8 Qxd5 16.Bxc7 Qd7 17.Nxc5 Qxc7 18.Nxb7 Qxb7 19.Re1 Re8 20.Qc2 1-0

(40) Revi,Frank (1375) - Robertson,Wade (982) [A85]

Mechanics' Spring TNM: Under 1600 San Francisco (6.42), 23.04.2019

1.d4 e6 2.Nf3 f5 3.c4 Nf6 4.Nc3 g6 5.Bf4 Bg7 6.Qc2 c6 7.e4 d5 8.exf5 exf5 9.Be2 0-0 10.0-0 Ne4 11.cxd5 Nxc3 12.bxc3 cxd5 13.Rad1 b6 14.c4 Bb7 15.Ng5 Qd7 16.Qb3 Bc6 17.Qh3 h6 18.cxd5 Bxd5 19.Nf3 Bxa2 20.Ne5 Qe6 21.Bf3 Bd5 22.Nxg6 Bxf3 23.Qxf3 Qxg6 24.Qxa8 Nc6 25.Qb7 Bxd4 26.Rd3 Rf7 27.Qc8+ Rf8 28.Qd7 Rd8 29.Rg3 Rxd7 30.Rxg6+ Kf7 31.Rxc6 a5 32.Rxh6 a4 33.Rh7+ Ke6 34.Re1+ Kd5 35.Rxd7+ Kc4 36.Rc1+ Kb3 37.Rxd4 b5 38.Bd6 f4 39.Rb4+ Ka2 40.Rc2+ Ka3 41.Rb1+ b4 42.Bxb4# 1-0

(41) Capdeville,Barry (1219) - Cole,Tony (1487) [C75]

Mechanics' Spring TNM: Under 1600 San Francisco (6.43), 23.04.2019

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 4.c3 a6 5.Ba4 d6 6.d4 Bd7 7.0-0 Ng6 8.Re1 h6 9.Nbd2 Be7 10.Nf1 Bg5 11.Be3 Qf6 12.Ng3 Nf4 13.Bxf4 Bxf4 14.Nh5 Qg6 15.Nxf4 exf4 16.d5 Ne5 17.Nxe5 dxe5 18.Bxd7+ Kxd7 19.f3 h5 20.Qa4+ b5 21.Qc2 h4 22.h3 Rh5 23.c4 bxc4 24.Qa4+ Ke7 25.Qxc4 Qd6 26.Red1 Rg5 27.Rd2 Qb6+ 28.Kh2 Ra7 29.Rad1 Rg6 30.b4 Rd6 31.Qc3 f6 32.a4 g6 33.a5 Qb7 34.Rb1 Qb5 35.Rc2 Rd7 36.Qe1 g5 37.Rc5 Qa4 38.Ra1 Qb3 39.Qd2 Rb7 40.b5 Rxb5 41.Qc1 Rb7 42.Rb1 Qxb1 43.d6+ cxd6 0-1

(42) Latourette,Nicholas (1347) - Chambers,Don (1127) [C44]

Mechanics' Spring TNM: Under 1600 San Francisco (6.44), 23.04.2019

[Winslow,Elliott]

1.e4 e5 2.Nf3 Nc6 3.d4 d5? [3...exd4] 4.Nxe5 Nxe5 5.dxe5 d4 6.Bc4 f6 7.e6 c6 8.f4 b5 9.Bb3 Qe7 10.f5 g6 11.a3 Bh6 12.0-0 Qc5 13.Kh1 Ne7 14.Bxh6 Ba6 15.c3 0-0-0 16.Qf3 g5 17.Bg7 b4 18.axb4 Qb5 19.Rd1 Qe2 20.Qxe2 Bxe2 21.Rxd4 Rhg8 22.Bxf6 Rde8 23.Rxa7 Kb8 24.Rxe7 Rxe7 25.Bxe7 Kb7 26.Bc5 Ra8 27.h3 Ra1 28.e7 Rxb1+ 29.Kh2 Bh5 30.f6 Rxb2 31.Rd7+ Ka6 32.Bc4# 1-0

(43) Soffer,Aaron (1260) - Caburi,Alwin [C45]

Mechanics' Spring TNM: Under 1600 San Francisco (6.45), 23.04.2019

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 exd4 5.Nxd4 Nxd4 6.Qxd4 c5 7.Qd1 d6 8.Bc4 Bd7 9.Bg5 Bg4 10.Bb5+ Bd7 11.Bc4 b5 12.Bd5 Rb8 13.Qf3 Be7 14.Bxf6 Bxf6 15.Qh5 g6 16.Qh6 b4 17.Nd1 Be6 18.0-0 Kd7 19.Qd2 Re8 20.Ne3 Bxb2 21.Rab1 Bd4 22.Nc4 Bxd5 23.exd5 h5 24.Qf4 Qf6 25.Qxf6 Bxf6 26.Na5 Rb5 27.Nb3 Re2 28.Rfc1 c4 29.Na1 Bg5 30.Rf1 a5 31.a3 Rd2 32.axb4 axb4 33.Rfd1 Rbxd5 34.Rxd2 Bxd2 35.Rd1 Kc6 36.g3 Bc3 37.Rf1 Rd2 38.Kg2 Bxa1 39.Rxa1 Rxc2 40.Kf3 Kc5 41.Ke3 Rc3+ 0-1

(44) Lintz,Michael Harry - Hilliard,Michael (1404) [D00]

Mechanics' Spring TNM: Under 1600 San Francisco (6.46), 23.04.2019

1.d4 d5 2.Bf4 Nf6 3.e3 e6 4.Nd2 c5 5.c3 cxd4 6.cxd4 Bb4 7.Ngf3 Nc6 8.a3 Ba5 9.Bd3 0-0 10.0-0 a6 11.Ne5 Bc7 12.Nxc6 bxc6 13.Bxc7 Qxc7 14.Nb3 e5 15.Nc5 exd4 16.exd4 Nd7 17.b4 Nxc5 18.bxc5 Qf4 19.h3 g6 20.Bc2 a5 21.Re1 Qg5 22.Qf3 Qh4 23.Rad1 Ba6 24.Re5 Rae8 25.Qe3 Qd8 26.Re1 Rxe5 27.Qxe5 Bc8 28.Qe7 Bd7 29.Qxd8 Rxd8 30.Rb1 Re8 31.Kf1 Kg7 32.Rb7 Re7 33.f3 Kf6 34.Kf2 Bf5 35.Rxe7 Kxe7 36.Bxf5 gxf5 37.Ke3 h5 38.Kf4 Kf6 39.h4 a4 40.g3 Ke6 41.Kg5 f6+ 42.Kxh5 Kf7 43.Kh6 1-0

(45) Olson,David R (1400) - Anderson,David [D02]

Mechanics' Spring TNM: Under 1600 San Francisco (6.47), 23.04.2019

1.Nf3 d5 2.d4 Nf6 3.g3 Nc6 4.Bg2 Bg4 5.Nc3 e6 6.Bg5 Be7 7.Ne5 Nd7 8.Bxe7 Bxe2 9.Bxd8 Bxd1 10.Bxc7 Bxc2 11.Nb5 Ndxe5 12.Bxe5 0-0 13.Rc1 Bd3 14.Nd6 f6 15.Bf4 e5 16.dxe5 fxe5 17.Bxd5+ Kh8 18.Nf7+ Kg8 19.Nxe5+ Kh8 20.Nxd3 Rae8+ 21.Kf1 Nd4 22.Kg2 Rd8 23.Bc4 b5 24.Bb3 Ne2 25.Rcd1 Nxf4+ 26.Nxf4 1-0

(46) Bayaraa,Timothy (1175) - Wagner,Tyler [C47]

Mechanics' Spring TNM: Under 1600 San Francisco (6.48), 23.04.2019

[Winslow,Elliott]

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 exd4 5.Nxd4 Bb4 6.Bg5 [6.Nxc6 bxc6 7.Bd3 d5 8.0-0 0-0] 6...0-0 7.Nxc6 dxc6 8.Qf3 Re8 9.Bd3 h6 10.Bh4 Qd4 11.0-0 Bxc3 12.bxc3 Qxc3 13.e5 Rxe5 14.Bxf6 gxf6 15.Qxf6 Qc5 16.Rfe1 Rxe1+ 17.Rxe1 Qf8 18.Re3 Be6 19.Rg3+ Qg7 20.Qxg7# 1-0

(47) Yamamoto,Craig (1500) - Cowgill,Jackie (1031) [D00]

Mechanics' Spring TNM: Under 1600 San Francisco (6.49), 23.04.2019

1.d4 d5 2.f4 Nf6 3.e3 e6 4.Nf3 Bd6 5.c4 Bb4+ 6.Bd2 Bxd2+ 7.Nbxd2 c6 8.Bd3 0-0 9.0-0 Re8 10.c5 Nbd7 11.Ng5 h6 12.Nh3 b5 13.a4 bxa4 14.g4 a5 15.g5 Ne4 16.Nxe4 dxe4 17.Bxe4 Ba6 18.Bxc6 Bxf1 19.Kxf1 Ra7 20.Qg4 Re7 21.gxh6 g6 22.Ng5 Nf6 23.Qh4 Nh5 24.Bf3 f6 25.Ne4 Rf7 26.Qg4 Kh7 27.Nd6 Rfd7 28.f5 exf5 29.Nxf5 Rd5 30.Bxd5 Qxd5 31.Nd6 Qh1+ 32.Qg1 Qf3+ 33.Qf2 Qh1+ 34.Qg1 Qf3+ 35.Qf2 Qh1+ 36.Qg1 Qf3+ 37.Qf2 1/2-1/2

(48) Harris,Clarence (1400) - Ahrens,Richard [C41]

Mechanics' Spring TNM: Under 1600 San Francisco (6.50), 23.04.2019

1.e4 e5 2.Nf3 d6 3.Nc3 Nf6 4.Bc4 Be7 5.0-0 0-0 6.d4 exd4 7.Nxd4 c5 8.Nf5 Nfd7 9.Qg4 g6 10.Bh6 Ne5 11.Nxe7+ Qxe7 12.Nd5 Qd8 13.Qf4 Nxc4 14.Nc7 f5 15.Nxa8 fxe4 16.Bxf8 Qxf8 17.Qxf8+ Kxf8 18.Nc7 Nxb2 19.Nd5 Bf5 20.Rab1 Be6 21.Nf4 Ke7 22.Rxb2 b6 23.Re1 d5 24.Nxe6 Kxe6 25.f3 Ke5 26.fxe4 dxe4 27.c3 Nc6 28.Rd2 Na5 29.Rd7 Nc4 30.Re7+ 1-0

(49) Sullivan,George T (958) - Soffer,Josiah (799) [D02]

Mechanics' Spring TNM: Under 1600 San Francisco (6.52), 23.04.2019

1.d4 d5 2.Nf3 Nf6 3.e3 Nc6 4.Be2 Bf5 5.b3 e6 6.0-0 Bd6 7.Bd3 Bxd3 8.Qxd3 Nb4 9.Qe2 0-0 10.Nc3 Ng4 11.e4 dxe4 12.Nxe4 Re8 13.Bb2 Bf4 14.g3 Bh6 15.c3 Nd5 16.Rfe1 f5 17.Ned2 f4 18.Rad1 Nde3 19.fxe3 fxe3 20.Nf1 Nf2 21.Rb1 Nh3+ 22.Kg2 Nf2 23.Nxe3 Bxe3 24.Qxe3 Ng4 25.Qg1 Re7 26.Ne5 Nxe5 27.Rxe5 Qf8 28.Ba3 Rae8 29.Bxe7 Rxe7 30.Rf1 Rf7 31.Rxe6 Rxf1 32.Qxf1 Qxf1+ 33.Kxf1 Kf7 34.Re5 g6 35.Rd5 c6 36.Rd7+ Ke8 37.Rxh7 Kd8 38.Rxb7 Kc8 39.Rxa7 Kb8 40.Rg7 1-0

(50) Karle,Ryan - Service,Bruce [C55]

Mechanics' Spring TNM: Under 1600 San Francisco (6.53), 23.04.2019

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 d5 5.Bb5 dxe4 6.Bxc6+ bxc6 7.Nxe5 exd3 8.0-0 Ba6 9.Nxc6 Qd5 10.Re1+ Ne4 11.Nb4 Bxb4 12.c3 Bc5 13.Nd2 f5 14.Qa4+ c6 15.Qxa6 Bxf2+ 16.Kf1 Bxe1 17.Kxe1 0-0 18.c4 Qd4 19.Nf3 Qg1+ 20.Nxg1 Rfe8 21.b3 Rad8 22.Qb7 d2+ 23.Kd1 Nc3+ 24.Kc2 dxc1Q+ 25.Rxc1 Ne2 26.Nxe2 Rxe2+ 27.Kc3 Rxg2 28.Qxc6 1-0

(51) Gulbis,Andrejs Juris - Bryan,Robert R (429) [D94]

Mechanics' Spring TNM: Under 1600 San Francisco (6.54), 23.04.2019

1.d4 d5 2.c4 e6 3.Nc3 g6 4.e3 Nf6 5.Nf3 Bg7 6.Bd3 0-0 7.0-0 Nc6 8.b3 Bd7 9.Bb2 Rc8 10.c5 a5 11.Qc2 b6 12.cxb6 cxb6 13.Bb5 e5 14.dxe5 Ne8 15.Nxd5 Rb8 16.Bxc6 Bxc6 17.Qxc6 Qc8 18.Ne7+ Kh8 19.Nxc8 Nf6 20.exf6 Bh6 21.Nxb6 g5 22.Nd7 Rbc8 23.Qd6 g4 24.Nfe5 Rfe8 25.Nxf7+ Kg8 26.Nxh6+ Kh8 27.f7+ 1-0


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