Chess Room Newsletter #901 | Mechanics' Institute

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Chess Room Newsletter #901

Gens Una Sumus!


Newsletter #901

Jan 17, 2020

By Abel Talamantez

Table of Contents

2020 Max Wilkerson Memorial TNM Round 2! 

Top Players Hold Court in Round 2, "A" Player Nicholas Weng Making Moves In Championship Section of TNM

Round 2 of the TNM concluded, and the top players mostly held on to victory in the championship section to set up a very competitive round 3. FM Josiah Stearman defeated the always dangerous NM Aleksandr Ivanov and FM Kyron Griffith defeated NM Michael Walder. IM Elliott Winslow fought back to beat Ethan Boldi and NM Rui Yang Yan defeated Steve Gaffagan. The biggest surprise was 12 year old Nicholas Weng (1854), who last week defeated expert Jason Childress and this week got a big win against WFM Natalya Tsodikova. 

In this game, Tsodikova (black) lost on time, and was clearly losing the game. However, right before her time expired, she arrived to this position with black to move:

White is threateing mate in 1 with Rg7#, and with seconds left, she missed a beautiful move that draws on the spot with Rh5+!! Black sacrifices the rook and white must capture it. In doing so, a stalemate is on the board, resulting in a draw. Too bad she missed this manueuver, which goes to show that even the best players miss tactical shots when the seconds are ticking on the clock. 

The top 2 boards do battle: Stearman - Ivanov and Griffith - Walder

In the A/B section, only 3 players are at 2/2 and there are 28 players in the section! On top are Bruce Ricard, Robert Drane, and Gagik Babayan. However, there are still 5 rounds to go, and plenty of strong players sit at 1.5/2 including the always dangerous Erika Malykin, Rudolph Breedt, Renjish Abraham, Anthony Acosta, Adam Mercado, Nicholas Latourette, and Michael Baer.

Great pictures from Juan Cendejas from round 2 of the TNM

In the under 1600 section, 9 people are at the top with 2/2 in a 49-player section. Thos eplayers with perfect scores are Ivan Rothman, Jahaan Ansari, Ilia Gimelfarb, Albert Starr, Valerie Jade, Eitan Neugut, Jerry Simpkins, Charles James, and Julian Sachs-Weintraub.

Tune in next week for round 3 coverage. We will have very special guest commentator IM Kostya Kavutskiy in with FM Paul Whitehead. Kostya is a professional player, coach and streamer who also writes extensively for USChess and last year was the commentator for the stream at the US Open. 

To watch the replay of round 2 coverage, please follow this link here

For a full list of standings and results from the round, click here

Tournament Director's Corner

Proper Castling

A player informed me after a game had ended that early on in the game, his opponent (white) had castled by first touching the rook, moving it to f1, then releasing the rook. Then the player picked up the king and moved it to g1 and completed the castling maneuver. The question I was asked was if this is an illegal move?

The USCF rule book states:

10I2. Rook touched first. If a player intending to castle touches the rook first, castling is not allowed and the player must move the rook as required by rule 10B. 

The king must be moved first, then the rook. If the above scenario had happened, the player attempting to castle would have had to leave the rook on f1 and that would have been the completed move, thus losing the right to castle and leaving the king at e1. Additionally, the player making the claim would get an additional two minutes added to their time per the standard penalty:

1C2a. Standard penalty. Except where specifically noted in the rules, the standard penalty assessed by the director is to add two minutes to the remaining time of the opponent of the player not following the rules of chess. 

A very important point to add here is that it is important for players to come see a TD whenever there is a question of a rule violation in a game. It has been my exprience that if a player inquires about a rule or calls a TD to enforce a rule, it is very rarely frowned upon by an opponent, and often times, ends up being a learning experience for all. As tournament directors, we can only intervene and help if something is brought to our attention, most things cannot be remedied after the game is over. So please be proactive and advocate for yourself and the rules of chess, please see a TD whenever something questionable happens, and you may always pause the clock if you legitimately need an Arbiter.

Brilliancy Prize Update

We received many responses to the artile about brilliancy prizes, something that was a very common thing when I played competitive chess many years ago. We have thus decided to offer 2 monthly brilliancy prizes, and these can be games from any event in that month provided that it be a rated event and that there is a complete notation of the game. These prizes will come in the form of choice of book from our in office chess library and we will publish the games in our newsletter with annotations by GM Nick de Firmian. 

If you would like to submit a game for consideration, please turn in the scoresheet to us and mark "brilliancy" on top of the coresheet, that way we know it is submitted for consideration. Games from any rated tournament at Mechanics' in January will count for the January prize. We will also be making reminder announcements at upcoming events.

We hope this adds a fun element to playing games, and encourages bold and exciting action. Good luck!

Wednesday Night Blitz Report

Expert Jules Jelinek was on fire in the January 15th edition of the Wednesday Night Blitz, scoring a perfect 6 - 0.
2nd place went to Dexter Pacheco with 4.5 - 1.5, and 3rd was Neel Yerramilli with 4 - 2.

11 players battled it out under the watchful eye of director Jelinek.

FM Paul Whitehead's Column

Famous Chess Games You Should Know.

The “Miniature” - World Champion Examples, Part 2.

By FM Paul Whitehead

The first move is valuable!  White wins all 5 of these games. As usual the common themes apply: rapid development and early mistakes.

  Not to mention near-divine inspiration.

Petrosian is here twice, as winner and loser.  Last week in this column we saw Lasker and Fischer crushed.  Even the greats fall, though it will take exceptional play and an exceptional player to take the point from them.  And maybe some luck and good fortune.

My favorite game here is the lesser-known: with all this chess, good and bad, Mikhail Tal’s cheeky win in a simultaneous exhibition is surely other-worldly!

Next week: Fischer to Carlsen.

(1) Mikhail Botvinnik - Lajos Portisch [A22]
Monte Carlo Monte Carlo MNC, 1968

Botvinnik became World Champion in 1948, losing the crown and winning it back in rematches against Smyslov and Tal until Petrosian removed it permanently in 1963. Not to mention a tied match with Bronstein in 1951. This brilliancy was played in the twilight years of Botvinnik's career, his last tournament game coming in 1970. 1.c4 e5 2.Nc3 Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Be6

An English opening. Or if you prefer, the Sicilian Dragon Reversed. 6.Nf3 Nc6 7.0-0 Nb6 8.d3 Be7 9.a3 a5 10.Be3 0-0
A standard position from this opening, still played by top players today. 11.Na4 Nxa4 A serious alternative is 11...Nd5. 12.Qxa4 Bd5 13.Rfc1 Re8 14.Rc2 Bf8 14...Bf6 seems more active. 15.Rac1
White has some pressure on the c-file here, but black is OK with normal moves like 15...Qd7 or 15...h6. 15...Nb8? Black wants to play ...c6 and figures he can trap the white rook. However... 16.Rxc7! Anyway. 16...Bc6 17.R1xc6! This sacrifice, in combination with the next, destroys black's defenses on the light-squares. 17...bxc6 18.Rxf7!!
If now 18...Kxf7 19.Qc4+ Kg6 ( If 19...Qd5 or 19...Re6 then 20.Ng5+. If 19...Ke7 or 19...Kf6 then 20.Bg5+.) 20.Qe4+ Kf7 21.Ng5+ and Black is mated or suffers catastrophic loss. 18...h6 19.Rb7 The rook roams the 7th rank. The knight on f3 and the bishop on g2 are ready to join in, and the end is near. 19...Qc8 20.Qc4+ Kh8
21.Nh4! Another pretty sacrifice. Black might as well accept. 21...Qxb7 22.Ng6+ Kh7 23.Be4!
Black is helpless. The threat is 24.Ne7+ g6 (or 24...Kh8) 25.Qg8 mate. 23...Bd6 24.Nxe5+ g6 25.Bxg6+ Kg7 26.Bxh6+!
The final sacrificial blow. If 26...Kxh6 27.Qh4+ Kg7 28.Qh7+ Kf8 29.Qxb7. If 26...Kh8 27.Nf7+ Kg8 28.Nxd6+. And if 26...Kf6 27.Qf4+ Ke6 28.Bf7+ Qxf7 29.Qxf7+ Kxe5 30.Bg7 mate! 1-0


(2) Vasily Smyslov - Cenek Kottnauer [B84]
Groningen Groningen NED, 1946

Over the course of three World Championship matches with Botvinnik, Smyslov won 18 games to Botvinnik's 17 (with 34 draws). Yet he only held the title for 1 year after winning the title in 1957. 1.e4 This is a game from Smyslov's youth. In later years he rarely opened with 1.e4. 1...c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2

One would expect this "positional" move from Smyslov. 6...e6 7.0-0 b5?! 8.Bf3! Ra7 This artificial rook transfer to the c-file just wastes time better spent developing other pieces. 9.Qe2 Rc7 10.Rd1
I like this move which puts the rook opposite the black queen and prepares to open lines. 10...Nbd7 11.a4! bxa4 Instead 11...b4 12.Na2 a5 13.Nb5 looks terrible for black as well. 12.Nxa4 Bb7 13.e5!
A powerful and thematic line-opening sacrifice. 13...Nxe5? A much better chance was offered by 13...dxe5 14.Bxb7 Rxb7 15.Nc6 Qc8! 14.Bxb7 Rxb7 15.Qxa6
Now black is too far behind in development gets destroyed. 15...Qb8 16.Nc6 Nxc6 17.Qxc6+ Nd7
White to move and win. 18.Nc5!!
Simply elegant. If now 18...Rc7 19.Nxd7 Rxc6 (or 19...Rxd7 20.Ra8 wins the queen) 20.Nxb8 and White is a piece ahead. 18...dxc5 19.Bf4!
The devastating follow up. Black has no defense. 19...Bd6 20.Bxd6 Rb6 21.Qxd7+!
The final blow. Black is down a piece after 21...Kxd7 22.Bxb8+. 1-0


(3) Mikhail Tal - Sviridov [B75]
Simul Stuttgart FRG, 1969

This charming game was played in a simultaneous exhibition. Tal could never resist a beautiful idea, move, or combination. And he created many. 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6

The Dragon Variation of the Sicilian Defense. 6.Be3 Bg7 7.f3 Nc6 8.Qd2 Bd7 9.0-0-0 White's major alternative is 9.Bc4. 9...Qa5
Black tries to speed up his counter-play by not castling, but this is not a successful strategy here. 10.Kb1 White makes his king safe, then throws the kingside pawns forward. 10...Rc8 11.g4 h6 12.h4 a6 13.Be2 Ne5 14.g5 hxg5 15.hxg5
Now black needs to play 15...Nh5, but when white gets in f4 at some point black will suffer. What happens now is totally unexpected. 15...Rxh1 What could go wrong? 16.gxf6!!
16...Rxd1+ 17.Nxd1!!
Genius! Black's queen is hanging... 17...Qxd2 18.fxg7!!
A new queen is about to appear. White's last 3 moves were simply stunning. 1-0


(4) Tigran Petrosian - Ludek Pachman [A07]
Bled Bled YUG, 1961

Petrosian took the title from Botvinnik in 1963 and then warded off Spassky once before losing the title in 1969. Known as perhaps the greatest defensive player ever, Petrosian was also a feared blitz player and a master tactician. 1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.0-0 Bg7 5.d3 e6 6.e4

White is playing the King's Indian Reversed. 6...Nge7 7.Re1 0-0 Black could also have considered 7...d6 or 7...d5. 8.e5 d6 9.exd6 Qxd6 10.Nbd2
The position is roughly equal, but there are hidden dangers for black, as we shall see. 10...Qc7 11.Nb3 Nd4?! Neglecting development! 11...b6 is better. 12.Bf4 Qb6 13.Ne5! This game is a nice combination of strategy and explosive tactics. 13...Nxb3 14.Nc4! Qb5 15.axb3
White's pieces are in harmony. He threatens Ra5. 15...a5 16.Bd6! Bf6 17.Qf3 Kg7 18.Re4 Rd8
Now comes an unexpected and stunning combination. 19.Qxf6+!! Kxf6 20.Be5+! Driving the king into the center. 20...Kg5
Or 20...Kf5 21.Rf4+ Kg5 22.Bf6+ Kh5 23.Rh4 mate. 21.Bg7!!
This study-like move takes away the king's avenues of escape and forces mate in every variation. A spectacular yet quiet finish! 1-0


(5) Boris Spassky - Tigran Petrosian [B94]
Petrosian - Spassky World Championship Moscow URS, 1969

An attacking masterpiece from the 1969 World Championship match. 1.e4 c5 Petrosian played the Sicilian more frequently than one would have thought, although the French and Caro-Kann better suited his style. 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5

This is a more aggressive approach compared to Smyslov's 6.Be2 we saw earlier. 6...Nbd7 7.Bc4 Qa5 8.Qd2 h6 9.Bxf6 White wastes no time. His moves are fast, economical. 9...Nxf6 10.0-0-0
White's lead in development is enormous, and black hastens to catch up. 10...e6 11.Rhe1 Be7 12.f4 0-0 13.Bb3 Re8 14.Kb1 Bf8 15.g4!
This is how it's done! Material is thrown to the winds, lines are opened. 15...Nxg4 16.Qg2 Nf6 17.Rg1 Black has no attack of his own, and can only hold on and hope for the best. 17...Bd7 18.f5 Kh8 19.Rdf1!
Spassky is patient, and brings in the last attacking piece. 19...Qd8 20.fxe6 fxe6 21.e5!
The classic line-clearing sacrifice. 21...dxe5 22.Ne4! The point. If 22...Nxe4 23.Rxf8+! and 24.Qxg7 mate. The threat is 23.Nxf6 gxf6 24.Qg8 mate. 22...Nh5 There is no defense. 23.Qg6! exd4 24.Ng5!

Black resigns. If 24...hxg5 25.Qxh5+ Kg8 26.Qf7+ Kh8 27.Rf3. And all other tries lose as well, as you can find out for yourself. A single-minded attack! 1-0

Tony's Teasers

Last week's problem:

Mate in 3, white to move. J. Moller 1911


1. Qg7!!  Be7  2. Qb2  e5  3. Qb8#


This week's problem:

White to move and mate in 4, K.A.L. Kubbel


Scholastic Chess in 2020

First Scholastic Swiss tournament of 2020 - Saturday, January 18 10AM

3 sections: 700+, 400-699, and under400
First round: 10AM and then rolling schedule
Prizes: Trophies to Top 5 trophies, medals to all others!
Ideal for new tournment players - notation and use of clock is not neccessary!
Register - More information

Save the Date

2020 US Amateur Team West Nationals - Kids Championship
Saturday, February 15, 2020 @ Hyatt Regency Burlingame
Information - Registration

2020 San Francisco Scholastic Championship
Saturday, March 28, 2020 @ Golden Gate Park
Information - Registration - Flyer



GM Nick de Firmian's Column

Nick is currently on vacation and the column will resume upon his return!


2020 Wilkerson Memorial TNM Games Round 2

Annotations by IM Elliott Winslow

(1) Ivanov,Aleksandr (2174) - Stearman,Josiah P (2445) [E41]
Wilkerson TNM: 2000+ San Francisco (2.1), 14.01.2020

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 [4.Nf3 c5 5.e3 Nc6 6.Bd3 Bxc3+ 7.bxc3 d6 8.e4 e5 was the move order of Spassky-Fischer 9.d5 Ne7 10.Nh4 h6 11.f4 Ng6 12.Nxg6 fxg6 13.fxe5 dxe5 14.Be3 b6 15.0-0 0-0 16.a4 a5 17.Rb1 Bd7 18.Rb2 Rb8 19.Rbf2 Qe7 20.Bc2 g5 21.Bd2 Qe8 22.Be1 Qg6 23.Qd3 Nh5 24.Rxf8+ Rxf8 25.Rxf8+ Kxf8 26.Bd1 Nf4 27.Qc2 Bxa4 0-1 (27) Spassky,B-Fischer, R Reykjavik 1972] 4...0-0 [4...c5 5.Bd3 Nc6 6.Nf3 0-1 (33) Amos, B-Shamkovich,L Calgary 1975] 5.Bd3 [5.Nge2 (and 6.a3 so to take back with the knight) was Rubinstein's original idea almost one hundred years ago.] 5...c5 [5...b6; 5...d5] 6.Nf3 Nc6 7.0-0 [7.d5 Ne7 8.e4 Bxc3+ 9.bxc3 d6 10.Nh4 Ng6 11.Nxg6 fxg6 12.0-0 e5 was the curious move order of Amos, B-Shamkovich] 7...Bxc3 8.bxc3 d6 The Huebner Variation, already pretty popular when Fischer played it (without 0-0 and ...0-0 yet) to beat Spassky in his second Black in a row, Game 5 World Championship, Reykjavik 1972. 9.e4 e5 10.d5 Ne7 11.Nh4 Ng6 12.Nxg6 [12.Nf5 Bxf5?! (12...Re8!?; 12...h6!?) 13.exf5 Ne7 14.g4 a6 (14...b5!?) 15.g5 Nd7 16.Qg4 b5 17.Qh3 bxc4 18.Be4 Rb8 19.Kh1 Nb6 20.Rg1 Nbxd5 21.f6 Ng6 22.fxg7 Kxg7 23.Bxd5 Qc8 24.Qh6+ Kh8 25.Be4 Rg8 26.Be3 Qe6 27.Rad1 Rbd8 28.Bd5 Qf5 29.Rd2 Rg7 30.Qh5 e4 31.Qg4 Qxg4 32.Rxg4 Ne5 33.Rxe4 h6 34.Bxc4 Rb8 35.Rxd6 Rb1+ 36.Kg2 Ng6 37.Re8+ Kh7 38.Bd3 1-0 (38) Navara,D (2725)-Chigaev,M (2531) Tallinn 2016] 12...hxg6 [12...fxg6!? 13.f4 exf4 (13...Qe7!? 14.f5 gxf5 15.exf5 e4 16.Bc2 b6 17.g4 h6 18.Bf4 Ba6 19.Qe2 Rae8 20.Rad1 Qd7 21.h3 Rf7 22.Rf2 Rfe7 23.Kh2 e3 24.Rf3 Ne4 25.Re1 Nd2 26.Rg3 Bxc4 27.Bd3 Bxd5 28.g5 hxg5 29.Bxg5 Rf7 30.Qh5 Ne4 31.f6 Qf5 32.Rf1 Nxg3 33.Rxf5 Nxh5 0-1 (33) Amos, B-Shamkovich,L Calgary 1975) 14.Bxf4] 13.f4N [13.Bg5 Qc7 14.a4 Nh7 15.Bd2 g5 16.Qh5 f6 17.Be2 Qf7 18.Bg4 g6 19.Qh3 f5 20.Be2 f4 21.Qh6 Nf6 22.Bd3 Qg7 23.Qxg7+ Kxg7 24.a5 Kf7 25.Rfb1 Ke7 26.g3 Nh5 27.Rb2 Kd8 28.Rab1 Rb8 29.Be2 Nf6 30.Bd3 Kc7 31.h4 gxh4 32.gxf4 exf4 33.Bxf4 Nxe4 34.Bh2 Ng5 35.Bxg6 Rg8 36.Bd3 Nf3+ 37.Kh1 Bh3 38.Bf1 Bf5 39.Ra1 Be4 40.Bg2 h3 0-1 (40) Okamura,M (2059)-Rego,V (2254) Rio de Janeiro 2014] 13...exf4 14.Bxf4 Ng4 15.Be2 Ne5 16.Bxe5 dxe5 17.Bg4 f5 18.Bh3 Rf6 19.Qe2 Qa5 20.Rad1 f4 21.Rf3 Bxh3 22.Rxh3 Rd8 23.Rhd3 Qa4 24.R3d2 Rfd6 25.Rb1 b6 26.Rb5 Rf8 27.Rb1 g5 28.Rbd1 Rff6 29.h3 Rg6 30.Qg4 Qxc4 31.Qf5 Qxc3 32.Rd3 Qb2 33.R3d2 Qa3 34.Rd3 Qxa2 35.Qxe5 Qe2 36.Qe8+ Kh7 37.e5 c4 38.Rd4 c3 39.Qe7 c2 40.Rf1 Qxf1+ 41.Kxf1 c1Q+ 0-1

(2) Griffith,Kyron (2434) - Walder,Michael (2124) [B90]
Wilkerson TNM: 2000+ San Francisco (2.2), 14.01.2020

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Qe2!? Just one of the "Odds & Ends" moves, which Kyron has shown some interest in. Vigorito (in his "Playing the Najdorf" 2020 book) notes that this move does have the highest scoring percentage! This game just made it worse. (Note: I prefer the Najdorf.) Essentially White can play (and has played) anything here: [6.Nb3 Kyron played this last year.; 6.Qf3; 6.Qd3; 6.a3; 6.Rg1; 6.Bd3; 6.-- But I think Black is still more likely to see one of these:; 6.Bg5; 6.Be2; 6.Be3; 6.Bc4; 6.f4; 6.a4; 6.h3; 6.-- Did I leave anyone out? I'm pretty sure I did. So the question is: is the Najdorf so good that White has to try something different all the time to look further and further afield for anything? Or is it so **bad** that White can play almost anything?] 6...e5 7.Nf5 d5! 8.Bg5 d4 9.0-0-0


[9.Bxf6 Qxf6 (9...gxf6!N 10.0-0-0 Bd7!? 11.Nb1 (11.Qh5 dxc3 12.Bc4 Qb6 13.Qxf7+ Kd8 14.Bb3 Kc8=/+) 11...Be6-/+) ] 9...Qa5?! [9...Bd7!? 10.Nd5 Be6!?; 9...Nc6 10.f4 (10.Qf3 is actually old stuff, games from 2011, 2012 and 2014 in the database!) 10...Qa5 11.fxe5 dxc3 12.exf6 g6 13.Rd5 Qxa2 14.bxc3 gxf5 15.exf5+ Be6 16.Rd3 Ba3+ 17.Kd2 Qa1 18.Qxe6+ fxe6 19.Be2 h6 20.Rxa1 hxg5 21.Rxa3 exf5 22.Rb3 Na5 23.Rb4 Kf7 24.Rd6 Kg6 25.g4 Rxh2 26.gxf5+ Kh6 27.Re4 Rf8 28.Kc1 Rf2 29.Re8 1-0 (29) Daggupati,B (2331)-Paragua,M (2501) Edmonton GM, 19 June 2019; 9...Be6!? 10.Nd5 Nbd7=/+ Vigorito] 10.Bxf6 [10.Nd5 Bxf5 11.Bxf6 gxf6 12.Qf3 Be6 13.Qxf6 Nd7 14.Qxh8 0-0-0 15.Qxh7 Qxa2 16.Kd2 Bxd5 17.exd5 Bb4+ 18.Ke2 Qxd5 19.f3 Re8 20.Qf5 Qc6 21.Qe4 Qd6 22.g4 Kb8 23.Kf2 Nc5 24.Qf5 Qh6 25.Bd3 Qe3+ 26.Kg2 e4 27.fxe4 Nxd3 28.cxd3 Qe2+ 29.Qf2 Qxg4+ 30.Qg3+ Qxg3+ 31.Kxg3 Bd6+ 32.Kf3 b5 33.h4 a5 34.h5 Rh8 35.h6 Rh7 36.Rdg1 Kb7 37.Rg7 Rh8 38.h7 a4 39.Rg8 Be5 40.Rxh8 Bxh8 41.Ke2 1-0 (41) Peczely,S (2165)-Koczo,K (2265) Hungary 2013] 10...gxf6


11.Qc4 [11.Qh5! Balaji Daggupati was inconceivably WATCHING this game while it was happening on the broadcast! Note the threat of Nxd4 (!) 11...Bxf5 (11...dxc3 12.Bc4 cxb2+ 13.Kb1 Qc7 14.Bxf7+! Qxf7 15.Rd8+ Kxd8 16.Qxf7) 12.Qxf5 Nd7 13.Rxd4 0-0-0 14.Be2 Qb6 15.Rxd7 Rxd7 16.Bg4 Qc6 17.Rd1 Bh6+ 18.Kb1 Rhd8 19.Qxh7 Bf8 20.Rxd7 Rxd7 21.Qxf7 Bc5 22.Nd5 1-0 (22) Daggupati,B (2226)-Kumar,N (1914) Irvine 2018] 11...Be6 12.Nd5 Bxd5 13.exd5 Qc5 14.Qb3 b5 15.a4 Nd7 16.axb5 Rb8 17.Be2 axb5 18.Rhe1 Qb4 19.Qa2 Qa4 20.Qxa4 bxa4 21.d6 Rb6 22.Bh5 a3 23.Rxd4 axb2+ 24.Kb1 Rg8 25.g4 Rg5 26.Rd5 Rxf5 27.gxf5 Bxd6 28.Re4 Ke7 29.Rc4 Nb8 30.Ra5 Nc6 31.Ra2 Nd4 32.Rc3 Nxf5 33.Rxb2 Rxb2+ 34.Kxb2 e4 35.Rh3 Bc5 36.Bg4 Nd6 37.f4 Be3 38.f5 h6 39.Kc3 Bf4 40.Kd4 e3 41.Kd3 Kd7 42.Rf3 Bg5 43.h4 Bxh4 44.Kxe3 Nc4+ 45.Kf4 Ne5 46.Ra3 Bg5+ 47.Kg3 Nxg4 48.Kxg4 Kc6 49.Ra7 Kc5 50.Rxf7 Kd5 51.Kh5 Ke5 52.Kg6 h5 53.Re7+ Kf4 54.c4 h4 55.c5 Kg4 56.c6 Bf4 57.c7 1-0


(3) Boldi,Ethan (2090) - Winslow,Elliott C (2223) [A05]
Wilkerson TNM: 2000+ San Francisco (2.3), 14.01.2020

1.Nf3 g6 2.g3 Bg7 3.Bg2 d6 4.0-0 Nf6 5.d3 0-0 6.e4 c5 7.Nbd2 Nc6 8.Re1 e5 9.Nf1 h6 10.Ne3 Be6 11.c4= Nd4 12.Nxd4 cxd4 13.Nd5 Nd7!? (trying to create some sort of play) 14.b3 [14.f4!?] 14...a5 15.Ba3 Ra6?! I hadn't made up my mind where everything was going yet. 16.Rc1 [16.f4!] 16...Nc5 17.Qd2 [17.Bxc5!? concerned me (but not Stockfish)] 17...b6 Now I can take with the b-pawn. 18.Bxc5?! bxc5 19.a3 Bxd5 20.cxd5 Rb6 21.Rb1 Qa8 Black now gets tripled on the b-file... 22.Rb2 Rfb8 23.Reb1 Rb5!? 24.Qc2 R8b7 25.Qc4 Qb8 He has to worry about ...a4! now. Perhaps he worried too much. 26.Qa4 Qc8 27.Qc4 h5 28.h4 Bf6 29.Kh2 Perhaps Bf3-d1 shoring up b3. 29...Qb8 30.Qa4 Kg7 31.Bh3


Judging from the "-0.38" on the five moves I show in the computer window, Stockfish 10 thinks that neither player can do anything at all. 31...g5!? 32.hxg5 Bxg5 Of course intending ...h4. But it's not clear whose rooks can zip across to the kingside more effectively. 33.f3? Now White should collapse. 33...h4! 34.gxh4 Be3? [34...Bf4+ 35.Kh1 Qh8 36.Rg2+ Kf6 37.Rg4 Qb8!-+ It's Black's queen that gets around the fastest.] 35.Bg4!?= Says the computer, but White is setting that bishop up for "tall pawn" status. 35...Kf6 36.h5 Ke7 37.Kg2 Qh8 38.Qc4 Qh6 ...Bd2-c3 pulls that rook off defense. 39.Qc2 Rb8 40.Kh3 R5b7 41.Rd1 Rg8 42.Qc4??


[42.Qg2!=/+] 42...Rb6?? Too "belt and suspenders" -- [42...Rxg4! 43.fxg4 Qf4; 42...Rg5! is somehow even better!; Or 42...Qf4!-+ and ...Rxg4 next on virtually anything.] 43.Qa4 [43.Qc2[] and defending with the queen on g2 is mandatory! But the scent of activity was too much.] 43...Rxg4! The fog lifted long enough for me to find this. Note it was *he* who was in time-trouble, I think down to one minute now. 44.fxg4 Qf4 45.Qxa5 Qf3+ 46.Kh2 Bf4+ 47.Kg1 Qxg4+ [47...Qxd1+! 48.Kg2 Rxb3! 49.Qc7+ Kf6 50.g5+ Kg7 (50...Kxg5? 51.Qe7+=; 50...Bxg5?? 51.Qd8++-) 51.h6+ Kg6 52.Qxd6+ Kh5 and mate shortly.] 48.Rg2 [48.Kf1 Qxd1+ 49.Qe1 takes a while] 48...Qxd1+ 49.Kf2 Qxb3 50.Rg8 Qc2+ 51.Kf3 Qd1+ 52.Kf2 Rb2+ 53.Qd2 Rxd2# 0-1


(4) Yan,Ruiyang (2221) - Gaffagan,Steven (2060) [B47]
Wilkerson TNM: 2000+ San Francisco (2.4), 14.01.2020

1.e4 c5 2.Nf3 e6 3.d4 [3.g3 d6 4.d4 Nf6 5.Nc3 cxd4 6.Nxd4 Be7 7.Bg2 0-0 8.0-0 a6 9.Re1 Qc7 10.h3 0-1 (32) Mortensen,H (2003)-Laursen,N (2215) Copenhagen 2010] 3...cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.g3 a6 7.Bg2 d6 Scheveningen style. [7...Nf6 8.0-0 Nxd4 (8...Be7 9.Re1 d6 10.h3 0-0 11.Be3 Bd7 12.f4 0-1 (58) Dudognon,T (2158)-Chalmeta Ugas,J (2249) Vaujany 2016) 9.Qxd4 Bc5; 7...h5!?; 7...Be7] 8.0-0 Bd7 9.Re1 Be7 Avoiding any Nd5 pseudosacrifices 10.Be3 Rc8 11.f4 Nf6 12.h3 0-0 13.Bf2 [13.Nb3; 13.a4 Na5 14.Nde2 Nc4 15.Bc1 b5 16.axb5 axb5 17.b3 Nb6 18.Be3 b4 19.Nb1 d5 20.e5 Ne4 21.Kh2 Ra8 22.Bxb6 Qxb6 23.Rxa8 Rxa8 24.Bxe4 dxe4 25.Qd4 Qb7 26.c4 bxc3 27.Nbxc3 Bc6 28.Qc4 Bd5 29.Nxd5 exd5 30.Qc2 Rc8 31.Qb2 h6 32.Nd4 Qb4 33.Re2 Rc3 34.Nf5 Bf8 35.Re3 Rxe3 36.Nxe3 d4 37.Nc4 d3 38.e6 Qc5 39.exf7+ Kxf7 40.Qd2 Kg8 41.Kg2 Qd4 42.Qe3 Qxe3 43.Nxe3 Bc5 44.Nd1 e3 45.Nb2 d2 46.Kf1 Bd4 47.Nd1 Kf7 48.Ke2 Ke6 49.Kf3 Kd5 50.g4 Kc5 51.h4 Kb4 52.h5 Kxb3 53.g5 Kc2 54.Ke2 Kc1 55.gxh6 gxh6 56.f5 Kc2 57.f6 Bxf6 58.Nxe3+ Kc1 0-1 (58) Dudognon,T (2158)-Chalmeta Ugas,J (2249) Vaujany 2016; 13.g4 Nxd4 14.Bxd4 Bc6 15.g5 Nd7 16.Qd2 Rfe8 17.Be3 b5 18.Ne2 Qb7 19.Ng3 Bf8 20.c3 Nb6 21.Qc2 Nc4 22.Bf2 a5 23.a3 Rc7 24.Qe2 Nb6 25.Qd2 e5 26.f5 d5 27.Qe2 dxe4 28.Nxe4 Nd5 29.Bg3 Nf4 30.Bxf4 exf4 31.Nf6+ gxf6 32.Qxe8 Qa7+ 0-1 (32) Mortensen,H (2003)-Laursen,N (2215) Copenhagen 2010] 13...Nxd4 14.Qxd4 Bc6 [14...e5 followed by 15...b5 seems to get an initiative going] 15.Rad1 [15.a4] 15...Rfd8 [15...b5] 16.g4 [16.Qb6!?] 16...d5!? Thematic, but perhaps not necessary. [16...h6!? could be all it takes to stall White's attack.] 17.e5 Nd7 [17...Ne4 appears to be no worse] 18.f5?! b5 [18...Bc5! 19.Qf4 Qb6 20.Bxc5 Nxc5! 21.Qe3 Qxb2!] 19.Qf4 b4?! nudges the knight towards the square it wants (d4) 20.Ne2 Nc5 21.Nd4 Bd7 [21...Bb7!] 22.Be3 Kh8?! 23.Bc1 [23.Rd2] 23...Rg8 24.g5 exf5 25.Nxf5 Ne6 26.Qg3 Bc5+ 27.Kh1 d4 28.Nd6? Bxd6 29.exd6 Qxc2-/+ 30.Rd2 Qc5?! [30...Qb1!-+] 31.Rf2 Rgf8 32.Bd2 a5 [32...Bc6!-/+] 33.Re4?! [33.Kh2 Bc6 34.Bf1] 33...Bc6-+ 34.Rh4 Bxg2+ 35.Kxg2 Qd5+ 36.Kg1 Qxa2? [36...Kg8!-+] 37.g6? [37.Qd3! g6 38.d7 Rcd8 (38...Rb8!?) 39.Rxd4! is enough to draw: 39...Nxd4 40.Qxd4+ Kg8 41.Re2 somehow...] 37...Qb1+ [37...fxg6! 38.d7 Qb1+ 39.Kg2 Rcd8-+] 38.Rf1 Qxg6 39.Qxg6 fxg6=/+ 40.d7?! Rcd8 41.Re4 Rxf1+? [41...Nc5! 42.Rxf8+ Rxf8 43.Re7 (43.Re8 Nxd7) 43...h6! 44.Be1 d3! White is done flailing.] 42.Kxf1 Nc7?? [42...Rf8+ 43.Ke2 Nc5=] 43.Rxd4? [43.Bf4!+-] 43...Kg8?! [43...h6! 44.Rd6 Kg8 45.Be3 a4 46.Bb6 a3 47.bxa3 b3 48.Bxc7 b2 Just! =] 44.Bg5 Rf8+ 45.Kg2 [45.Ke2] 45...Ne6 46.d8Q [46.Rd6; 46.Rd2] 46...Nxd8? [46...Rxd8! 47.Rxd8+ Nxd8 48.Bxd8 a4=] 47.Bxd8+/- Rf5 48.b3 Kf7 49.Rd3 g5 50.Rf3? [50.Rd2] 50...g6?? [50...Rxf3 51.Kxf3 a4= eilminates the last queenside pawn with the classic wrong rook pawn and bishop pairing.] 51.Bxa5+- Ke6 52.Rxf5 gxf5 53.Bxb4 h5 54.Bd2 g4 55.h4 Kd5 56.Kg3 Ke4 57.b4 Kd3 58.Bf4 Kc4 59.Bd6 Kb5 60.Kf4 Kc6 61.Bc5 Kb5 62.Kxf5 g3 63.Kg5 g2 64.Kxh5 1-0

(5) Weng,Nicholas (1864) - Tsodikova,Natalya (2204) [C96]
Wilkerson TNM: 2000+ San Francisco (2.5), 14.01.2020

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 b5 6.Bb3 Be7 7.Re1 d6 8.c3 0-0 9.h3 Na5 10.Bc2 c5 11.d4 Nd7 12.d5 Nb6 13.Nbd2 g6 14.a4 Bd7 15.b3 bxa4 16.bxa4 Rb8 17.Qe2 c4 18.Ba3 Nb3 19.Nxb3 cxb3 20.Bxb3 Nxa4 21.Bxa4 Bxa4 22.Qxa6 Bb5 23.Qa7 Ra8 24.Qe3 f5 25.Qc1 fxe4 26.Rxe4 Bd3 27.Rb4 Qd7 28.Qe3 Ba6 29.Rab1 Qf5 30.Rd1 Bc8 31.Bb2 Qh5 32.Rd3 Bd8 33.Nh2 Bg5 34.Qe1 Ra2 35.Nf1 Qh6 36.Ng3 Ba6 37.Rd1 Rf4 38.Rb8+ Rf8 39.Rb4 Bd8 40.Ra1 Rxa1 41.Qxa1 Bd3 42.Qe1 Ba5 43.Ra4 Bb6 44.Nh1 Qg5 45.Bc1 Qf5 46.Be3 Bxe3 47.Qxe3 Rb8 48.Ra1 e4 49.Qd4 Qf4 50.Ng3 h5 51.Rd1 Rf8 52.Ra1 h4 53.Nh1 Qf7 54.Ra7 Qf6 55.Qxf6 Rxf6 56.g3 Rf5 57.Ra5 Re5 58.gxh4 e3 59.fxe3 Rxe3 60.Ra8+ Kf7 61.Kf2 Re5 62.Ra5 Bc4 63.Ng3 Bxd5 64.Ne2 Rf5+ 65.Kg3 Rf3+ 66.Kg4 Rd3 67.Nf4 Bf3+ 68.Kg5 Rxc3 69.Ra7+ Ke8 70.Kxg6 Be4+ 71.Kf6 Rf3 72.Kg5 Rf1 73.h5 Rg1+ 74.Kh4 d5 75.h6 Kf8 76.h7 Bxh7 77.Rxh7 Rf1 78.Nxd5 Rd1 79.Nf4 Rd4 80.Kg4 Rd1 81.Ra7 Rg1+ 82.Kh5 Rf1 83.Ng6+ Kg8 84.h4 Rf5+ 85.Kh6 Rd5 1-0

(6) Snyder,Larry (2061) - Kuczek,Kevin W (1982) [C45]
Wilkerson TNM: 2000+ San Francisco (2.6), 14.01.2020

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Nf6 5.Nxc6 bxc6 6.e5 Qe7 7.Qe2 Nd5 8.c4 Ba6 9.b3 Nb6 10.g3 g6 11.Bb2 Bg7 12.Bg2 0-0 13.0-0 Rab8 14.Nd2 Na4 15.Bd4 c5 16.Be3 Nb6 17.f4 d5 18.exd6 cxd6 19.Rae1 Rfe8 20.Qf2 Qc7 21.f5 Nd7 22.fxg6 fxg6 23.Qf7+ Kh8 24.Bf4 Rf8 25.Qe7 Bd4+ 26.Kh1 Be5 27.Bxe5+ dxe5 28.Ne4 Bb7 29.Rxf8+ Rxf8 30.Ng5 Ra8 1-0

(7) Pane,Gianluca (1927) - Askin,David Benja (2027) [D36]
Wilkerson TNM: 2000+ San Francisco (2.7), 14.01.2020

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.cxd5 exd5 5.Bg5 Be7 6.e3 Nbd7 7.Bd3 c6 8.Qc2 Nh5 9.Bxe7 Qxe7 10.Nge2 g6 11.0-0-0 Nb6 12.Kb1 Ng7 13.e4 dxe4 14.Nxe4 Nd5 15.Qc5 Qxc5 16.dxc5 0-0 17.a3 Ne6 18.Bc4 Nef4 19.Nxf4 Nxf4 20.Nd6 Be6 21.Bxe6 Nxe6 22.Nxb7 Rab8 23.Rd7 a5 24.Rc1 Ra8 25.Rc4 Ra7 26.Rc3 Nf4 27.Rb3 Nd5 28.a4 Kg7 29.Rd6 Re8 30.Nd8 Nb4 31.Re3 Rae7 32.Nxc6 Rxe3 33.fxe3 Nxc6 34.Rxc6 Rxe3 35.Rd6 Re5 36.c6 Rc5 37.c7 Rxc7 38.Rd5 Ra7 39.Kc2 h5 40.Kc3 f6 41.Kc4 g5 42.Kd4 Kg6 43.Ke4 f5+ 44.Rxf5 h4 45.h3 Ra8 46.Rc5 Ra6 47.b3 Ra8 48.Rc6+ Kh5 49.Kf5 Rf8+ 50.Ke5 Rb8 51.Rc3 Re8+ 52.Kf6 Rf8+ 53.Kg7 Rb8 54.Kf6 Rf8+ 55.Ke7 Rf2 56.Rc5 Rxg2 57.Rxa5 Rg3 58.Kf6 Rf3+ 59.Rf5 Rxb3 60.Rxg5+ Kh6 61.Rg4 Rxh3 62.a5 Rf3+ 63.Ke6 Kh5 64.Ra4 Rf8 65.a6 h3 66.a7 Ra8 67.Kf5 h2 68.Ra1 Kh4 69.Kf4 Kh3 70.Kf3 Rxa7 71.Rxa7 h1Q+ 72.Kf2 Qh2+ 73.Kf3 Qg2+ 74.Kf4 Qf2+ 75.Kg5 Qxa7 0-1

(8) Clemens,Kristian (2019) - Hakobyan,Sos (1818) [D40]
Wilkerson TNM: 2000+ San Francisco (2.8), 14.01.2020

1.Nf3 e6 2.d4 c5 3.e3 cxd4 4.exd4 d5 5.c4 Nf6 6.Nc3 Bb4 7.Bd2 Nc6 8.a3 Be7 9.Bg5 h6 10.Bh4 dxc4 11.Bxc4 g5 12.Bg3 g4 13.Ne5 Qxd4 14.Bb5 Qxd1+ 15.Rxd1 Bd7 16.Nxd7 Nxd7 17.Ne4 a6 18.Be2 0-0-0 19.Rc1 f5 20.Rxc6+ 1-0

(9) Lehman,Clarence E (1907) - Childress,Jason (2073) [B01]
Wilkerson TNM: 2000+ San Francisco (2.11), 14.01.2020

1.e4 d5 2.exd5 Nf6 3.Be2 Nxd5 4.d4 g6 5.c4 Nb6 6.Nc3 Bg7 7.Be3 0-0 8.h3 c6 9.Nf3 N8d7 10.0-0 Nf6 11.Nd2 Bf5 12.g4 Be6 13.Kg2 Qd7 14.Rh1 Rfd8 15.Qf1 Ne8 16.Nb3 Qc8 17.Rd1 f5 18.f3 Nc7 19.Bg5 Re8 20.Kg3 Bf7 21.Bd2 e5 22.dxe5 Bxe5+ 23.f4 Bg7 24.Rh2 Re7 25.Rf2 Qe8 26.Re1 Rd8 27.a4 Nd7 28.g5 Nf8 29.Bd1


29...Rxd2 30.Rxe7 Rxf2 31.Qe1 Qd8 32.Kxf2 Nfe6 33.Rxf7 Kxf7 34.Na5 Nc5 35.Bc2 N7e6 36.Kg3 Qxa5 37.Qe3 Bxc3 38.bxc3 Qc7 39.h4 Qd6 40.h5 Nxg5 41.Kh4 Nge6 42.hxg6+ hxg6 43.Kg3 g5 0-1


(10) Busch,Jonah M (1944) - German,Felix (1895) [B01]
Wilkerson TNM: 2000+ San Francisco (2.12), 14.01.2020

1.e4 d5 2.exd5 Qxd5 3.Nf3!? [3.Nc3] 3...Nf6 4.d4 Bg4 5.Be2 e6 6.h3 Bh5 7.0-0 Be7 8.c4 Qd6 [Relevant: 8...Qd8 9.Qb3 Qc8 10.Nc3 0-0 11.Be3 Nbd7 12.Rfd1 h6 13.Rac1 a6 14.a3 Re8 15.Qc2 Bg6 16.Bd3 Bxd3 17.Rxd3 b6 18.Ne5 Nxe5 19.dxe5 Nd7 20.Bf4 Nf8 21.Rg3 Kh8 22.Re1 Ng6 23.Bc1 Qb7 24.Rxg6 fxg6 25.Qxg6 Bf8 26.Ne4 c5 27.Bf4 Rad8 28.Nd6 Bxd6 29.exd6 Rf8 30.Be5 Kg8 31.Re4 Rf5 32.Qxe6+ Qf7 33.Qxf7+ Rxf7 34.f4 g5 35.g3 Kh7 36.Kf2 gxf4 37.gxf4 Kg6 38.Kf3 Anand,V (2764)-Duda,J (2729) Paris 2019 1-0] 9.Nc3 0-0 10.Nb5 Qd8 11.Bf4 Ne8N [Predecessor: 11...Na6 12.Nc3 c6 13.Qb3 Bxf3 14.Bxf3 Qxd4 15.Qxb7 Qxf4 16.Qxa6 Bd6 17.Rfd1 Be5 18.Rac1 Qh2+ 19.Kf1 Bxc3 20.Rxc3 e5 21.Bxc6 Rad8 22.Rxd8 Rxd8 23.Rd3 Rf8 24.Qa5 Qh1+ 25.Ke2 Qb1 26.Qd2 Qxa2 27.b3 Qa6 28.Rd6 h6 29.Bd5 Qc8 30.b4 Nh5 31.c5 Nf4+ 32.Kf1 Qf5 33.Ba2 e4 34.g4 Qe5 35.Qd4 Qg5 36.Qe3 Qe5 37.Rd4 Nxh3 38.Qxe4 Qf6 39.Qe3 g5 40.Bb1 Nf4 41.Qe4 Doluhanova,E (2225)-Sergienko,S (2429) Voronezh 2011 1-0] 12.g4 Bg6 13.Ne5 c6 14.Nc3 Bd6 15.Nxg6 fxg6!? Good news: This is just as good as the other recapture. Or is it just as BAD? (computers at first make White close to winning on either, although they back off as they see Black's resiliency). [15...hxg6] 16.Bxd6 [16.Be3!? Bf4 17.Qd2 Black's biggest problem is finding good squares for all those knights.] 16...Qxd6 17.c5 Trade-off: d5 for d6. 17...Qe7 18.Bc4 Nc7 19.Qe2 Nd7 20.Rfe1 Rae8 21.Ne4 Nd5 22.Nd6 Nf4 23.Qe3


23...Qh4! 24.Bf1 [24.Qg3! is computer madness: 24...Nxh3+ 25.Kh1! (25.Kg2?? Rxf2+) 25...Qxg3! (25...Nxf2+ 26.Kg2+-) 26.fxg3 Ng5! 27.Nxe8 Rxe8 28.Re2 White still has quite the better game, but there could still be some tricks with the knights.] 24...Re7 [24...Rb8!?] 25.Qg3 Qxg3+?! [25...Qf6 keeps the better knight outpost at f4.] 26.fxg3 Nd5 27.Bc4?! [27.Nxb7! Rb8 28.Na5 Rc8 (28...Rxb2 29.Nxc6 Re8 30.Nxa7 mops up all of Black's pawns on the queenside.) 29.Bg2] 27...N7f6 28.g5! Ne8


29.Bxd5! The other problem with "good" squares for a knight -- they can get traded off into bad pawn structures. 29...cxd5 30.Nxe8? [30.Nc8! Rd7 31.Nxa7 should be "technique" -- it's as if White has two pawns more (and they're ready to march). Plus, the thought of ...e5 has dissipated.] 30...Rexe8 31.Re3 [31.Kg2; 31.h4] 31...Rf5 [31...e5! 32.Rae1! e4 33.Ra3 with initiative on the queenside, but it's not so certain it leads to a win.] 32.h4 [32.Rae1! Kf7 (32...Rxg5?! 33.Kg2 threatens Black with g3-g4, when his rook is trapped.) 33.Kg2] 32...e5!? Black busts out. 33.Rxe5? [33.Rf1+/- Even here, White's "Panov-Botvinnik" queenside majority looms larger than anything Black can manage.; 33.Rae1+/-; 33.b4+/-; 33.Rc1+/-] 33...Rfxe5 34.dxe5 Rxe5 Now it's pretty even. 35.Kf2 Kf7 36.Rd1 Ke6 37.Rd3 Kd7 [37...d4] 38.Re3 Rf5+ 39.Ke2 [39.Rf3?? Rxf3+ 40.Kxf3 Kc6-+] 39...d4 40.Re4 d3+ [40...Rxc5 41.Rxd4+ Ke6=] 41.Kxd3 Rxc5 42.b4 [42.a4] 42...Rf5 43.Rf4 Ke6 44.Ke4 Re5+ 45.Kd4 Rd5+ 46.Ke4 Rd2 47.a4 Ra2 48.a5 Rb2 49.Ke3 Rb3+ 50.Kf2 Rc3


51.Rf3?? One must resist, especially when in time trouble, trading off rooks without careful calculation. Rook endings aren't all drawn (as the old joke goes), but they do lean towards the middle -- while pawn endings lean toward the win/loss. 51...Rxf3+ 52.Kxf3 Kd5 53.g4 Kc4 54.h5 Kxb4 55.h6 gxh6 56.gxh6 Kxa5 57.Kf4 0-1


(11) Argo,Guy (1939) - Melville,Cailen J (1884) [C02]
Wilkerson TNM: 2000+ San Francisco (2.13), 14.01.2020

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Qb6 5.Nf3 Nc6 6.Be2 cxd4 7.cxd4 Nh6 8.Nc3 Nf5 9.Na4 Qa5+ 10.Bd2 Bb4 11.Bc3 Bd7 12.a3 Bxc3+ 13.Nxc3 0-0 14.b4 Qd8 15.Qd3N [>=15.0-0] 15...f6 16.g4?!


16...fxe5! This is a new position, but this tactic has been seen quite a few times before. (Here it works pretty well, according to the computer.) 17.gxf5 Rxf5? Black turns it into a real piece sacrifice. [17...e4! Gets the piece back first of all! 18.Nxe4 dxe4 19.Qxe4 Rxf5-/+ Yes Black has a weak e-pawn and a "bad" bishop. But everything else is in his favor. The f-file is going to be significant; White has more weak pawns; White's king won't be comfortable anywhere on the board (while Black still has solid pawn cover). 20.Qh4 Qf8! 21.Qg3 Nxb4! 22.axb4 Bc6! That bishop is *not* bad.] 18.dxe5 Good... [For some reason, 18.Nxe5! is better. Reducing material when a piece up perhaps? Eliminating a target on f3? 18...Nxe5 19.dxe5 Rxe5 20.f4 Rf5 21.0-0 is safe enough (for an extra piece!).] 18...Rc8?! [18...Nxe5 19.Nxe5 Rxe5 is as above.; 18...Qc7 plays for a better major piece activity (Q/e5, Raf8).; 18...Qe7!? might even improve on that.] 19.0-0?! [19.Qe3+- among others] 19...Nxe5 [19...Be8!? heading for g6 or h5] 20.Nxe5 Rxe5 21.f4?? [21.Bf3 wins -- White can "replace" his missing g-pawn with his extra piece.] 21...Qb6+ (too easy) 22.Rf2 Re3 23.Nxd5 exd5 24.Qxd5+ Be6 25.Qd2 [25.Qb5 Qc7 As before, White's weak pawns and more exposed king give a clear advantage to Black. (Not that much worse is 25...Qxb5 26.Bxb5 Kf7) ] 25...Rd8 26.Qb2?! [26.Qc2] 26...Bd5 27.Rd1? [27.Bf1 continues to struggle on.; Or 27.Qc2 so that ...Qg6 isn't death.] 27...Qg6+ 28.Kf1 Qe4 29.Rxd5? Qh1# 0-1


(12) Reichwein,Axel (1892) - Lum,Michael K (1914) [B10]
Wilkerson TNM: 2000+ San Francisco (2.14), 14.01.2020

1.e4 c6 2.d3 d5 3.Nd2 Qc7!? Scores as well, well better, than anything else! [Way most common is 3...e5] 4.Ngf3 [4.Qe2 So much for the caveat about early queen moves! 4...dxe4 5.Nxe4 Bf5 6.g3 Nd7 7.Bg2 Bxe4 8.dxe4 e5 9.Nf3 Ngf6 10.0-0 Bc5 11.b3 0-0 12.Bb2 Rfe8 13.Bh3 Bf8 14.Rad1 Nc5 0-1 (65) Tiviakov,S (2649)-Postny,E (2627) Neustadt an der Weinstrasse 2008] 4...Bg4 5.h3 Bh5 6.g4 Entering tricky waters. 6...Bg6 7.Bg2 Nd7 8.Qe2 e6 9.b3 0-0-0 10.Bb2 f6 11.Rc1 dxe4 12.dxe4 e5 13.a3 Bf7 14.0-0 Ne7 White has completely neglected f4. And along with the precariously advanced pawns, it's enough to give Black a hub for a winning attack. 15.b4 Ng6 16.Rfd1 Nf4 17.Qf1 Be7 18.Nb1 g5 19.c4 If White thought that c4-c5 was going to help... 19...h5 20.Ne1 hxg4 21.hxg4 Be6 22.f3 Qb6+ 23.Qf2


[23.c5 Nxc5!] 23...Rh1+! 24.Kxh1 [24.Bxh1 Nh3+] 24...Qxf2 25.Rc2 Rh8+ 0-1


(13) Breedt,Rudolph Fr (1882) - Mercado,Adam (1789) [B08]
Wilkerson TNM: U2000 San Francisco (2.9), 14.01.2020

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 0-0 6.Bg5 Nbd7 7.Qd2 c5 8.Bh6 cxd4 9.Nxd4 Nc5 10.Bxg7 Kxg7 11.f3 h5 12.0-0-0 Be6 13.Qg5 Nh7 14.Qh4 Rc8 15.f4 Bd7 16.Qg3 Nf6 17.Bf3 Kh7 18.e5 Ne8 19.Rhe1 b5 20.f5 Ng7 21.fxg6+ fxg6 22.exd6 exd6 23.Qxd6 b4 24.Nd5 Qg5+ 25.Kb1 Kh6 26.g3 Nf5 27.Nxf5+ Bxf5 28.Ne7 Bxc2+ 29.Kxc2 Ne4+ 30.Nxc8 Rxc8+ 31.Kb1 Nxd6 32.Rxd6 Qf5+ 33.Be4 Rc1+ 34.Kxc1 Qc5+ 35.Kb1 Qxd6 36.Rc1 a5 37.Bc2 Qd2 38.h3 Qh2 39.g4 hxg4 40.hxg4 Kg5 41.Bd1 Qd6 42.b3 Kf4 43.Rc4+ Ke3 44.Bc2 Kd2 45.Re4 Qc6 46.Rd4+ Ke2 47.Re4+ Kf3 48.Rc4 Qd6 49.Be4+ Ke2 50.Bc2 Qb6 51.Kb2 Qf6+ 52.Kb1 Qf1+ 53.Kb2 Qf2 54.Kc1 Qf1+ 55.Kb2 Qf6+ 56.Kc1 Qf1+ 57.Kb2 Qf6+ 58.Kb1 Qf1+ 59.Kb2 Qf6+ 60.Kc1 Qf1+ 61.Kb2 Qf6+ 62.Kc1 Qf1+ 63.Kb2 1/2-1/2

(14) Babayan,Gagik (1784) - Royzen,Igor (1868) [B12]
Wilkerson TNM: U2000 San Francisco (2.16), 14.01.2020

1.e4 c6 2.d4 d5 3.e5 c5 4.dxc5 Nc6 5.Nf3 Bg4 6.Nc3 e6 7.Bb5 Bxc5 8.0-0 a6 9.Bxc6+ bxc6 10.h3 Bh5 11.Na4 Ba7 12.b3 Ne7 13.Ba3 Bxf3 14.Qxf3 Bd4 15.Rae1 0-0 16.c3 Ba7 17.Nb2 Re8 18.Bxe7 Qxe7 19.Nd3 Bc5 20.Qg4 g6 21.h4 h5 22.Qf4 Bb6 23.Re2 a5 24.g3 a4 25.b4 c5 26.bxc5 Bxc5 27.Rb1 Qa7 28.Nxc5 Qxc5 29.Rb7 Rf8 30.Re3 Ra7 31.Rxa7 Qxa7 32.Rf3 Qb7 33.Qxa4 d4 34.Rd3 1-0

(15) Abraham,Renjish (1861) - Acosta,Anthony (1762) [A88]
Wilkerson TNM: U2000 San Francisco (2.17), 14.01.2020

1.c4 f5 2.g3 Nf6 3.Bg2 g6 4.Nf3 Bg7 5.d4 0-0 6.0-0 d6 7.Nc3 c6 8.Re1 h6 9.e4 e6 10.Qb3 Kh7 11.exf5 exf5 12.d5 c5 13.Bd2 a6 14.Na4?! b5 15.Nc3 b4 16.Ne2 a5 17.a4 Ne4 18.Rad1 Nxd2 19.Rxd2 Re8 20.Qd3 Ra7 21.b3 Rae7 22.Ra2 Nd7 23.Kf1 Ne5 24.Nxe5 Rxe5 25.h3 Qf6 26.Qf3 Qe7 27.Rc2 Bd7 28.Qd3-+ Qf6 [28...f4!; 28...h5!! 29.h4 f4 30.gxf4 Bf5 31.Qg3 Bxc2 32.fxe5 Qxe5-+] 29.Rd1 Qe7 30.Bf3 Bf6 31.Kg2 Kg7 32.Ng1 Bg5 33.Re2 f4 34.Rde1 fxg3 35.Rxe5 dxe5 36.fxg3+/- h5 37.Be4 Qd6 38.Nf3 Bd8 39.Qe3 Bf6 40.Nd2 Qe7 41.Qd3 Qf7 42.Rf1 Rf8 43.Nf3 Qe8 44.d6 Qe6 45.Ng1 Be8 46.Nf3 Bd7 47.Ng1 1/2-1/2

(16) Mays,Jerry L (1700) - Ricard,Bruce (1849) [C96]
Wilkerson TNM: U2000 San Francisco (2.18), 14.01.2020

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Be7 6.Re1 b5 7.Bb3 d6 8.c3 0-0 9.h3 Na5 10.Bc2 c5 11.d4 Nd7 12.dxe5 Nxe5 13.Nxe5 dxe5 14.Qxd8 Rxd8 15.Nd2 Be6 16.Nf3 f6 17.Nh4 g6 18.b3 b4 19.c4 Nc6 20.Nf3 Kf7 21.Be3 Nd4 22.Bd1 Rd7 23.Nxd4 exd4 24.Bf4 h5 25.g4 g5 26.Bg3 h4 27.Bh2 Bd6 28.e5 fxe5 29.Bxe5 Bf8 30.f4 gxf4 31.Bxf4 Bg7 32.Be5 Bh6 33.Rf1+ Ke7 34.Bf6+ Kd6 35.Bxh4 Rh8 36.Bg3+ Ke7 37.Be5 Be3+ 38.Kg2 Rh6 39.Bf4 Rf6 40.Bxe3 dxe3 41.Rxf6 Kxf6 42.Kf3 Rd2 43.Kxe3 Rh2 44.Kf4 Rxh3 45.Bf3 Rh2 46.Kg3 Rb2 47.Kf4 Bc8 48.Ke3 Kg5 49.Bd1 Bxg4 50.Bxg4 Kxg4 51.Kd3 Kf4 52.Rf1+ Ke5 53.Re1+ Kd6 54.Re2 Rxe2 55.Kxe2 Ke6 56.Ke3 Ke5 57.Kd3 Kf4 58.Kc2 Ke3 59.Kb2 Kd2 60.a3 a5 61.axb4 axb4 62.Ka2 Kc2 63.Ka1 Kxb3 64.Kb1 Kxc4 0-1

(17) Drane,Robert Will (1812) - Madhavan,Srikrishnan (1720) [C16]
Wilkerson TNM: U2000 San Francisco (2.19), 14.01.2020

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.Bd3 c5 6.a3 Ba5 7.b4 cxd4 8.Nb5 Bc7 9.Nf3 Nbc6 10.Bf4 0-0??


11.Bxh7+! Kh8 [11...Kxh7 12.Ng5+ Kg6 13.Nxc7 Qxc7 14.h4] 12.Ng5 [12.Nxc7 Qxc7 13.Bd3!] 12...g6 13.Nxc7 [13.h4!] 13...Qxc7 14.h4 f6 15.Bxg6 Nxg6 16.Qh5+ Kg8 17.Qxg6+ Qg7 18.Qxg7+ Kxg7 19.exf6+ Rxf6 20.Bg3 e5?! 21.b5 Ne7 22.Bxe5 Kg6 23.Bxf6 Kxf6 24.Rd1 Bf5 25.Rxd4 Re8 26.Kd2 Rc8 27.c3 Bd7 28.a4 Bf5 29.g4 Bg6 30.Re1 Bf7 31.Rf4+ 1-0


(18) Malykin,Erika (1675) - Hack,Richard (1567) [A86]
Wilkerson TNM: U2000 San Francisco (2.20), 14.01.2020

1.d4 f5 2.c4 Nf6 3.Nc3 g6 4.g3 Bg7 5.Bg2 0-0 6.Nf3 d6 7.Qc2 Qe8 8.Bd2 e5 9.dxe5 dxe5 10.Nb5 Na6 11.0-0 c6 12.Nd6 Qe6 13.c5 Ne8 14.Ng5 Qe7 15.Qc4+ Kh8 16.Ndf7+ (Neither player cared to say which knight went to f7 first. ..) 16...Rxf7 [16...Kg8 17.Nh6+ Kh8 18.Qg8+ Rxg8 19.Ngf7+ Qxf7 20.Nxf7#] 17.Nxf7+ Kg8 18.Nh6+ Kh8 19.Qg8# 1-0

(19) Latourette,Nichol (1623) - Maser,Thomas F (1900) [C45]
Wilkerson TNM: U2000 San Francisco (2.21), 14.01.2020

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bb4+ 5.Nc3 Qf6 6.Nde2 Nh6 7.f3 0-0 8.Be3 Re8 9.Qd2 d5 10.Bg5 Qd6 11.Qxd5 Qxd5 12.exd5 Nd4 13.0-0-0 Ndf5 14.Ng3 Nxg3 15.hxg3 Nf5 16.Bb5 Re5 17.Bf4 Bxc3 18.bxc3 Re7 19.Bd3 h6 20.g4 Ne3 21.Rhe1 Nxd5 22.Be4 Nf6 23.Bh7+ Kf8 24.Rd8+ Ne8 25.Be4 g5 26.Be3 Kg7 27.Bf5 1-0

(20) Allen,Alex (1671) - Baer,Michael A (1441) [B01]
Wilkerson TNM: U2000 San Francisco (2.22), 14.01.2020

1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.d4 Nf6 5.Nf3 a6 6.Ne5 Nc6 7.Be3 Nxe5 8.dxe5 Qxe5 9.Qf3 c6 10.h3 Bf5 11.0-0-0 Be4 12.Qe2 e6 13.Bd4 Qg5+ 14.Be3 Qe5 15.f4 Qc7 16.Rd4 Bd5 17.Nxd5 Nxd5 18.f5 e5 19.Bd2 0-0-0 20.Ra4 Re8 21.g4 Bd6 22.Qe4 Nf6 23.Qe3 Nd5 24.Qb3 e4 25.c4 Nf4 26.Qe3 g6 27.Ba5 Qb8 28.c5 Nd5 29.Qd4 Be5 30.Qc4 Bf4+ 31.Kb1 Re7 32.Be2 Rhe8 33.Rd1 Ne3 34.Qxe4 Nxd1 35.Qxc6+ bxc6 36.Bxa6+ Rb7 37.Rd4 Ne3 38.Rd7 Bc7 39.Bxc7 Qxc7 40.Rxc7+ Kxc7 41.fxg6 hxg6 42.a4 Ra7 43.Bd3 Rxa4 44.b3 Rd4 45.Bc2 Nxc2 46.Kxc2 Re3 0-1

(21) Boldi,Nicholas (1754) - Hansen,Mateo Step (1624) [B38]
Wilkerson TNM: U2000 San Francisco (2.23), 14.01.2020

1.e4 c5 2.Nf3 d6 3.c4 Nf6 4.Nc3 g6 5.d4 cxd4 6.Nxd4 Bg7 7.Be2 0-0 8.0-0 Bd7 9.Be3 Nc6 10.Qc2 Ng4 11.Nxc6 Nxe3 12.Nxe7+ Qxe7 13.fxe3 Be5 14.Rf3 Bg4 15.Rf2 Bxe2 16.Nxe2 Rac8 17.Rc1 b5 18.b3 Rc5 19.Qd3 Rfc8 20.Rff1 Bb2 21.Rc2 bxc4 22.bxc4 Be5 23.Nd4 Qc7 24.Rfc1 Bxh2+ 25.Kxh2 d5+ 26.Kg1 dxc4 27.Qe2 Qg3 28.Qf3 Qh4 29.g3 Rg5 30.Rg2 Qh3 31.g4 Qh4 32.Qg3 Qh6 33.Rh2 Qf8 34.Qh4 Qc5 35.Qxh7+ Kf8 36.Qh6+ Ke7 37.Qh4 Kd6 38.Nf5+ Rxf5 39.Rd1+ Kc6 40.exf5 gxf5 41.Qf6+ Kb7 42.Qxf7+ Rc7 43.Qd5+ Qxd5 44.Rxd5 fxg4 45.Rc2 Kb6 46.Rg5 1-0

(22) Cortinas,Martin A (1662) - Lesquillier,Walter (1733) [E18]
Wilkerson TNM: Extra Rated Game San Francisco (2.24), 14.01.2020

1.d4 Nf6 2.Nf3 e6 3.g3 b6 4.Bg2 Bb7 5.0-0 Be7 6.c4 0-0 7.Nc3 d6 8.Qc2 d5 9.cxd5 exd5 10.Rd1 Nbd7 11.Bf4 c6 12.Rab1 b5 13.b4 Nb6 14.Ne5 Nc4 15.Nxc4 bxc4 16.e4 Ne8 17.b5 cxb5 18.Nxb5 Bc6 19.Re1 Bf6 20.exd5 Bxd5 21.Red1 Bxg2 22.Kxg2 a6 23.Nc3 Nd6 24.Nd5 Nb5 25.Nxf6+ Qxf6 26.Be5 Qe6 27.Rb4 Qd5+ 28.Kg1 Rac8 29.a4 f6 30.axb5 a5 31.Ra4 fxe5 32.dxe5 Qxe5 33.Rxc4 Rb8 34.Rc5 Qe6 35.Rc6 Qf7 36.Rc7 Qf6 37.Rdd7 Rxb5 38.Qc4+ Kh8 39.Rf7 Rb1+ 40.Kg2 Rxf7 41.Rxf7 Qd8 42.Qc5 Rb8 43.Qe5 Qg8 44.Rxg7 Qxg7 45.Qxb8+ Qg8 46.Qe5+ Qg7 47.Qxa5 Qb7+ 48.f3 Qb2+ 49.Kh3 Qe2 (White lost in time scramble) 0-1

(23) Lin,Aung Tun (1657) - Rakonitz,David (1613) [A05]
Wilkerson TNM: U2000 San Francisco (2.25), 14.01.2020

1.Nf3 Nf6 2.e3 e6 3.b3 b6 4.Bb2 Bb7 5.Bb5 Be7 6.0-0 0-0 7.Ne5 d6 8.Ng4 a6 9.Bd3 Nbd7 10.f4 c5 11.Nf2 b5 12.e4 Qc7 13.c4 bxc4 14.bxc4 Rab8 15.Bc3 Bc6 16.Na3 Rfd8 17.Rc1 d5 18.cxd5 exd5 19.e5 Ne8 20.Qg4 c4 21.Bxh7+ Kxh7 22.Qf5+ Kg8 23.Nh3 g6 24.Qg4 Bxa3 25.f5 Nf8 26.Rce1 Bc5+ 27.Kh1 d4 28.fxg6 Nxg6 29.Ng5 Bd5 30.e6 Bxe6 31.Nxe6 fxe6 32.Rxe6 Rb7 33.Rxg6+ Ng7 34.Qe6+ Qf7 35.Rxf7 Rxf7 36.Qxc4 dxc3 37.Rf6 Rdd7 38.Rxf7 Rxf7 39.dxc3 Be3 40.g3 Kf8 41.Qxa6 Rd7 42.Qc6 Rd1+ 43.Kg2 Rd3 44.a4 Rd2+ 45.Kf3 Bg1 46.h4 Rf2+ 47.Kg4 Kf7 48.h5 Nxh5 49.Kxh5 Rf6 50.Qd7+ Kg8 51.Kg5 Ra6 1-0

(24) Casares Jr,Nick (1600) - Carron,Joel (1645) [B77]
Wilkerson TNM: U2000 San Francisco (2.26), 14.01.2020

1.e4 c5 2.Nf3 g6 3.d4 cxd4 4.Nxd4 Bg7 5.Be3 Nc6 6.Bc4 Nf6 7.Nc3 0-0 8.f3 d6 9.Qd2 Na5 10.Bd3 Nd7 11.Nb3 Nxb3 12.axb3 Nc5 13.Bc4 Be6 14.0-0-0 Bxc4 15.bxc4 Qa5 16.Kb1 Qb4 17.Bd4 Qxc4 18.Bxg7 Kxg7 19.g4 Qb4 20.h4 f6 21.g5 b5 22.h5 Na4 23.Nxa4 Qxd2 24.Rxd2 bxa4 25.hxg6 hxg6 26.gxf6+ Rxf6 27.Rdh2 Rxf3 28.Rg1 Raf8 29.Rhh1 a3 30.b3 Rf2 31.Rd1 Re2 32.Rd4 Rf4 33.Ra4 Rfxe4 34.Rxa3 Re1+ 35.Rxe1 Rxe1+ 36.Kb2 g5 37.Rxa7 g4 38.Ra4 Rg1 39.Re4 Kf7 40.b4 g3 41.b5 Rh1 42.Rg4 Rh5 43.c4 Rc5 44.Kb3 d5 45.cxd5 Rxb5+ 46.Kc4 Rb7 47.Rxg3 Rc7+ 1/2-1/2

(25) Raza,Aezed (1643) - Morgan,Jerry (1467) [D19]
Wilkerson TNM: U2000 San Francisco (2.27), 14.01.2020

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4 Bb4 8.0-0 0-0 9.Qe2 Bg6 10.Bd3 Bh5 11.Bd2 Nbd7 12.e4 e5 13.Be3 Qa5 14.Rfc1 Rfe8 15.h3 Re6 16.g4 Nxg4 17.hxg4 Bxg4 18.Qd1 exd4 19.Bxd4 Qh5 20.Be2 Rh6 21.Kf1 Qh1+ 22.Ng1 Bh3+ 23.Ke1 Qxg1+ 24.Kd2 Qxd1+ 25.Rxd1 Rd6 26.Ke3 c5 27.Bxg7 Rxd1 28.Rxd1 Kxg7 29.Rh1 Bxc3 30.bxc3 Be6 31.f4 b6 32.c4 Nf6 33.e5 Nd7 34.Bd3 Rh8 35.Rg1+ Kf8 36.f5 Bxf5 37.Bxf5 Nxe5 38.Bd3 Nxd3 39.Kxd3 h5 40.Rg3 h4 41.Rh3 Kg7 42.Ke4 Kf6 43.Kf4 Kg6 44.Kg4 f5+ 45.Kf4 Kf6 46.Kf3 Kg5 47.Rh1 h3 48.Rg1+ Kh4 49.Kf4 h2 50.Rh1 Kh3 51.Kf3 Rg8 52.Kf2 Rg2+ 53.Kf1 Rc2 0-1

(26) Harris,Clarence (1402) - Gimelfarb,Ilia (1599) [C68]
Wilkerson TNM: U1600 San Francisco (2.10), 14.01.2020

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.0-0 Bd6 6.d4 Bg4 7.dxe5 Bxf3 8.Qxf3 Bxe5 9.Rd1 Qh4 10.g3 Qh3 11.Qf5 Qxf5 12.exf5 Ne7 13.Nc3 Bxc3 14.bxc3 Nxf5 15.Re1+ Kd7 16.Bf4 Rae8 17.Red1+ Nd6 18.c4 c5 19.Rd5 b6 20.Rb1 Kc6 21.Bxd6 cxd6 22.Rbd1 Re6 23.Kf1 Rd8 24.f3 Re3 25.R1d3 Rxd3 26.cxd3 Re8 27.a4 Re5 28.Rxe5 dxe5 29.Ke2 b5 30.cxb5+ axb5 31.axb5+ Kxb5 32.Kd2 Kc6 33.Ke3 Kd5 34.h3 f5 35.f4 e4 0-1

(27) Starr,Albert Mart (1552) - Olson,David R (1400) [A05]
Wilkerson TNM: U1600 San Francisco (2.28), 14.01.2020

1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.Nf3 0-0 5.Be2 d6 6.0-0 e5 7.d3 Nc6 8.b5 Ne7 9.Nbd2 Be6 10.c4 c5 11.a4 Qd7 12.a5 a6 13.b6 Ng4 14.Ng5 f5 15.Nxe6 Qxe6 16.Bf3 Rab8 17.e4 Nh6 18.Re1 f4 19.Nf1 Nc6 20.Bc3 g5 21.Qc1 g4 22.Bd1 f3 23.g3 Qg6 24.Ne3 Qh5 25.Kh1 Rf6 26.Nd5 Rg6 27.Bd2 Nf7 28.Ba4 Nd4 29.Ne7+ Kh8 30.Nxg6+ hxg6 31.Bd1 Kh7 32.Re3 Ng5 33.h4 gxh3 34.Re1 h2 35.Bxg5 Qh3 36.Bxf3 Nxf3 37.Rf1 Rh8 38.Qe3 Ng1 39.Be7 Kg8 40.Bh4 Bh6 41.f4 exf4 42.Qf2 g5 43.Qxh2 gxh4 44.Rxg1 Qxh2+ 45.Kxh2 hxg3+ 46.Kg2 Bg7 47.Raf1 Rh2+ 48.Kf3 Bd4 49.Rg2 Rh4 Black lost on time 1-0

(28) Johnson,Nathaniel - Simpkins,Jerry (1539) [A00]
Wilkerson TNM: Extra Rated Game San Francisco (2.29), 14.01.2020

1.h4 e5 2.e4 Nf6 3.d3 c6 4.g3 d5 5.Bg2 d4 Both players were using a dialect of scorekeeping unknown to the game entry person. 0-1, 0-1

(29) Jade,Valerie (1532) - Martin,Michael J (1387) [C70]
Wilkerson TNM: U1600 San Francisco (2.30), 14.01.2020

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Bc5 6.Re1 d6 7.h3 0-0 8.c3 Re8 9.d4 Ba7 10.Bc2 b5 11.a4 Bd7 12.Bg5 Bb6 13.Na3 Na5 14.axb5 axb5 15.Qd3 c6 16.Nh4 h6 17.Bd2 Nh5 18.Nf5 Qf6 19.Kh2 Bxf5 20.exf5 Kh7 21.Qf3 Nf4 22.Rg1 Nd5 23.g4 g5 24.h4 Nf4 25.hxg5 hxg5 26.Rg3 Kg7 27.dxe5 dxe5 28.c4 Rh8+ 29.Kg1 Nxc4 30.Bc3 Bc5 31.Re1 b4 32.Nxc4 bxc3 33.bxc3 Ra2 34.Rxe5 Bxf2+ 35.Qxf2 Ra1+ 36.Qf1 Ne2+ 37.Rxe2 Rxf1+ 38.Kxf1 Qxc3 39.Rxc3 1-0

(30) Rothman,Ivan (1487) - Roberts,Joseph (1358) [C28]
Wilkerson TNM: U1600 San Francisco (2.31), 14.01.2020

1.e4 e5 2.Bc4 Nc6 3.Nc3 Nf6 4.d3 h6 5.a3 Be7 6.f4 exf4 7.Bxf4 d6 8.Nf3 Bg4 9.0-0 Nd4 10.Qd2 Nxf3+ 11.gxf3 Bh3 12.Rf2 g5 13.Be3 a6 14.Ne2 1-0, 1-0

(31) Neugut,Eitan (1322) - Hilliard,Michael (1476) [D60]
Wilkerson TNM: U1600 San Francisco (2.32), 14.01.2020

1.c4 c6 2.Nc3 d5 3.d4 Nf6 4.Qb3 e6 5.Bg5 Be7 6.Nf3 Nbd7 7.e3 0-0 8.Bd3 Re8 9.0-0 Ng4 10.Bf4 f5 11.h3 Ngf6 12.cxd5 cxd5 13.Nb5 Ne4 14.Bc7 Ndc5 15.dxc5 Qd7 16.Bxe4 fxe4 17.Ne5 Bxc5 18.Nxd7 Bxd7 19.Be5 Rac8 20.Nd6 Bxd6 21.Bxd6 b6 22.Rfc1 Bc6 23.Be5 Rf8 24.Qc3 Rf7 25.Qxc6 Rxc6 26.Rxc6 1-0

(32) Ansari,Jahaan (1461) - Chambers,Don (1298) [D08]
Wilkerson TNM: U1600 San Francisco (2.33), 14.01.2020

1.d4 d5 2.c4 e5 3.cxd5 Qxd5 4.e3 Nc6 5.Nf3 e4 6.Nfd2 Nf6 7.Nc3 Qf5 8.Qc2 Nb4 9.Qb1 Nd3+ 10.Bxd3 exd3 11.0-0 b6 12.e4 Qg6 13.Qxd3 Bb7 14.d5 Bb4 15.Qb5+ Nd7 16.Qxb4 0-0-0 17.Nf3 h5 18.Bf4 Nc5 19.Qc4 Ba6 20.Nb5 Kb8 21.Bxc7+ Ka8 22.Bxd8 Rxd8 23.Nc7+ Kb7 24.Nxa6 Nxa6 25.Rac1 Nc5 26.Rfe1 a6 27.b4 Rc8 28.bxc5 Rxc5 29.Qd4 Qd6 30.Rxc5 bxc5 31.Qxg7 Qc7 32.Ne5 Qa5 33.Qxf7+ Kb6 34.Nc4+ 1-0

(33) Wagner,Tyler (1050) - Sachs-Weintraub,J. (1429) [A48]
Wilkerson TNM: U1600 San Francisco (2.34), 14.01.2020

1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.Bd3 0-0 5.0-0 Nc6 6.b3 d5 7.Ba3 a6 8.Nbd2 b5 9.c4 dxc4 10.bxc4 b4 11.Bb2 Bg4 12.Qa4 Qd7 13.Ng5 a5 14.Nge4 Nd8 15.Nxf6+ Bxf6 16.Qxd7 Bxd7 17.Ne4 Bh8 18.h3 Bf5 19.g4 Bxe4 20.Bxe4 Rb8 21.f4 c5 22.f5 a4 23.fxg6 hxg6 24.Rab1 a3 25.Bxa3 Rc8 26.Bb2 cxd4 27.exd4 Rxc4 28.Rbc1 Bxd4+ 29.Bxd4 Rxd4 30.Rfe1 f5 31.Bc2 e6 32.Bb3 fxg4 33.Kh2 gxh3 34.Re5 Rf7 35.Rc8 Kg7 36.Kxh3 Rf6 37.Rc4 Rxc4 38.Bxc4 Kf7 39.Kg4 Nc6 40.Re4 Ke7 41.Kg5 Na5 42.Bb3 Nxb3 43.axb3 Rf5+ 44.Kxg6 Rb5 45.Rh4 (only scoresheet says "45.Rf4," but next two moves are 46.Kg5 and 47.Kf4, so...) 45...Rb6 46.Kg5 Kd6 47.Kf4 e5+ 48.Ke3 Kd5 49.Rc4 Rb5 50.Re4 Ke6 51.Rc4 Kf5 52.Re4 Rb6 53.Rc4 Rb7 54.Re4 Ke6 55.Rc4 Kd6 56.Re4 Rb5 57.Rc4 Somehow Black got the king through to c3 and xb3... 0-1, 87 0-1

(34) Sullivan,George T (914) - James,Charles (1404) [B56]
Wilkerson TNM: U1600 San Francisco (2.35), 14.01.2020

1.e4 c5 2.Nf3 Nf6 3.Nc3 d6 4.d4 cxd4 5.Nxd4 e5 6.Ndb5 [6.Bb5+!] 6...a6 7.Na3 b5 8.Nd5 Nxe4 9.Bd3 Nc5 10.Be2 Nc6 11.c3 Bb7 12.Bf3 e4 13.Be2 Ne5 14.0-0 Ncd3 15.Nb4 Nxb4 16.cxb4 d5 17.Nc2 Bd6 18.a3 0-0 19.Nd4 f5 20.Ne6 Qf6 21.Nxf8 Rxf8 22.Be3 f4 23.Bd4 f3 24.gxf3 Qg5+ 25.Kh1 Nxf3 26.Bxf3 Qf4 0-1

(35) Ross,Max L (1549) - Byrd,Bill [A45]
Wilkerson TNM: U1600 San Francisco (2.36), 14.01.2020

1.d4 Nf6 2.e3 d6 3.Bd3 Nbd7 4.Nf3 e5 5.dxe5 dxe5 6.Nbd2 Nc5 7.Nxe5 Nxd3+ 8.cxd3 Qd5 9.Ndf3 Bd6 10.d4 0-0 11.0-0 Ne4 12.b3 Re8 13.Bb2 Re6 14.Qd3 b5 15.Rad1 Rh6 16.Nd2 Bf5 [16...Bxe5 17.dxe5! (17.Qxe4 Bxh2+ 18.Kh1 Bf4+ 19.Kg1 Rh1+! 20.Kxh1 Qh5+ 21.Kg1 Qh2#) 17...Qxd3 18.Nxe4 Rd6 19.Rxd3 Rxd3 20.Bd4 Bf5 21.Nc5 Rd2-/+] 17.Qe2 f6 18.Nxe4 Qxe4 19.f3 Qh4 20.g3 Qh3 21.Rf2?! [21.e4! fxe5 22.exf5 exd4 23.f4 c5 24.b4 Qxf5 25.bxc5 Bxc5 26.Bxd4=] 21...fxe5 22.dxe5 Be7 23.Qxb5 Rf8 [23...c5] 24.Qc4+ Be6 25.Qxc7 Rxf3!? 26.Qxe7??


[26.Rdd2=] 26...Rxf2?? [26...Rxg3+!! 27.Kh1 (27.hxg3 Qh1#) 27...Rg1+!! 28.Kxg1 (28.Rxg1 Bd5+ 29.e4 Bxe4+ 30.Rgg2 Qxh2#) 28...Qg4+ 29.Rg2 (29.Kh1 Qxd1+ 30.Kg2 Rg6+ 31.Qg5 Rxg5#) 29...Qxd1+ 30.Kf2 Qc2+ 31.Kf1 (31.Kf3 Bd5+ 32.e4 (32.Kf4 Qe4+ 33.Kg5 Qh4+ 34.Kf5 Be4#) 32...Rh3+ 33.Rg3 Qxe4+ 34.Kf2 Rxh2+) 31...Qb1+ 32.Kf2 Qxb2+ 33.Kf3 Bd5+ 34.Kf4 Rh4+ 35.Qxh4 Qxg2-+] 27.Rd8+ 1-0


(36) Bryan,Robert R (373) - Chan,John (1506) [E20]
Wilkerson TNM: U1600 San Francisco (2.37), 14.01.2020

1.d4 Nf6 2.c4 c6 3.Nc3 e6 4.Bg5 Be7 5.Rc1 d6 6.e4 h6 7.Bf4 Qa5 8.Nf3 0-0 9.Bd3 Nh5 10.0-0?? Nxf4 11.Bc2 Nd7 12.g3 Ng6 13.a4 Qc7 14.a5 Qxa5 15.Ra1 Qc7 16.h4 Nf6 17.h5 Nxh5 18.g4 Nhf4 19.Kh2 a6 20.Re1 e5 21.dxe5 dxe5 22.b4 Bxb4 23.Qd2 Bxg4 24.Re3 Qe7 25.Rg1 Bxf3 26.Rxf3 Qh4+ 0-1

(37) Neuberg,Bryan - Radaelli,Lucas (1411)
Wilkerson TNM: U1600 San Francisco (2.38), 14.01.2020


(38) Morgan,Jacob (1227) - Sai,Rohit [B00]
Wilkerson TNM: U1600 San Francisco (2.39), 14.01.2020

1.e4 b6 2.d4 Bb7 3.Bd3 f5?! 4.exf5! [4.d5 1-0 (27) Svidler,P (2713) -Chernyshov,K (2524) Voronezh 2003 CBM 096 [Mueller,Karsten]] 4...Bxg2 5.Qh5+ g6 6.fxg6 Bg7 [6...Nf6?? 7.gxh7+ Nxh5 8.Bg6#] 7.gxh7+ Kf8


8.hxg8Q+?! [8.Nf3! is all but the refutation. 8...Nf6 9.Qg6 Bxh1 (9...Bxf3 10.Rg1 Rxh7 11.Qg3 Be4 12.Bxe4 Nxe4 13.Qf3++-) 10.Bh6 Rxh7 11.Ng5 Bxh6 12.Nxh7+ Nxh7 13.Qxh6+ Kf7 14.Qxh7+ Ke6 15.Qh6+ (15.Qg6+!) 15...Kd5 16.Nc3+ Kxd4 1-0 Roederer,K-Nefzer,W/Lauda 1986/GER (16); 8.Ne2!?] 8...Kxg8 9.Qg5 [9.Qg4 makes more sense] 9...Bxh1 10.Bc4+ d5 Perhaps he forgot about that bishop on h1! 11.Bd3 Nc6 12.Be3 e5! Black takes over, with a won game. 13.Qg6 Qe8 14.Qxe8+ Rxe8 15.Bb5 Re6 16.Bxc6 Rxc6 17.c3 Rxh2 18.Ne2 Bf3 19.Ng3 Bg4 20.Nd2 exd4 21.cxd4 Re6 22.Ndf1 Rh7 23.Kd2 Bh3 24.Nh2 Bh6 25.Nf3 Bxe3+ 26.fxe3 Rg7 27.Ne2 Rg2 28.Ne5 Bg4 29.Nxg4 Rxg4 30.Nf4 Rd6 31.Rh1 c5 32.dxc5 bxc5 33.Rh5 Kg7 [33...d4! still in the -+ zone] 34.Rxd5?! [34.Nxd5] 34...Rxd5+ 35.Nxd5 Kf7 36.a3 Ke6 37.Nc3 Ke5 38.b3 c4 39.bxc4 Rxc4 40.Kd3 Rc5 41.Kd2 Kf5 42.Kd3 Kg4 43.Kd4 Ra5 44.a4 Kf3 45.e4 Kf4 46.Nd5+ Kg5 47.Nc3 Kf6 48.Nd5+ Ke6 49.Nc3 a6 50.Kd3 Ke5 51.Kc4 Kd6 52.Kd4 Rc5 53.Kd3 Ke5 54.Nd5 Rc1 55.Nc3 Rh1 56.Kc4 Rh3 57.Nd1 Rg3 58.Nc3 Rf3 59.Nb1 [59.Nd5 Kxe4 60.Nc7 Rf6 61.Kc5 Black can't approach. (61.Kb4?? Rc6) ] 59...Rf1 60.Nc3 Rf3 61.Nb1 Re3 62.Nc3 Rg3 63.Ne2 Rh3 64.Nc3 Re3 65.a5 Rh3 66.Nd1 Rf3 67.Nc3 Re3 68.Kb4 Kd4


69.Nd5? [69.Nb5+! Kxe4 70.Nc7=] 69...Rxe4 Black is winning now! 70.Nc7 Re1 71.Nxa6 Rb1+ 72.Ka3 Kc3 73.Ka4 Kc4 74.Ka3 Kc3 75.Ka4 Kc4 76.Ka3 Ra1+! 77.Kb2 Rxa5 78.Nc7


[78.Nb8 Rb5+] 78...Kd4?? Slipping up. [78...Re5! keeps the errant knight boxed in, to be picked off by the king. Worth remembering!] 79.Ne6+? But not right away! [79.Kb3! draws. Just take the computer's word for it. Endgames are **not** easy!] 79...Ke5? [79...Kc4!-+] 80.Ng5!= Kf5 81.Nf3 Rd5 82.Kc3 Ke4 83.Nd2+


Here Black played 83...Rd3+ -- and White played 84.Kc2! (Black is in check already!) the game was agreed drawn on Black's 100th move! 1/2-1/2


(39) Sterling,Isaac (1126) - Shannon,Rex [D53]
Wilkerson TNM: U1600 San Francisco (2.40), 14.01.2020

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.Nf3 Nc6 6.e3 h6 7.Bh4 b6 8.cxd5 Nxd5 9.Nxd5 Bxh4 10.Nxc7+ Qxc7 11.Nxh4 Bb7 12.Rc1 Qe7 13.Nf3 0-0 14.Be2 Rac8 15.0-0 Nb4 16.Rxc8 Rxc8 17.a3 Nd5 18.Qd2 Qc7 19.Rd1 Qc2 20.Bd3 Qb3 21.Ne5 Nf6 22.f3 Nd5 23.Kf2 Ba6 24.Re1 f6 25.Rc1 Rxc1 26.Qxc1 Bxd3 27.Qc8+ Kh7 28.Nd7 Qxb2+ 29.Kg3 h5 30.Nf8+ Kh6 31.Nxe6 h4+ 32.Kxh4 Qf2+ 33.Kg4 Qxg2+ 34.Kh4 0-1

(40) Allen,Tom Carter (1426) - Gimelfarb,Natan (1134) [C44]
Wilkerson TNM: U1600 San Francisco (2.41), 14.01.2020

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3 dxc3 5.Bc4 Nf6 6.Nxc3 Bc5 7.0-0 d6 8.Re1 Bg4 9.Nd5 Nd4 10.Qa4+ c6 11.Nxf6+ Qxf6 12.Bg5 Nxf3+ 13.gxf3 Qxg5 14.fxg4 Qxg4+ 15.Kf1 b5 16.Bxf7+ Kxf7 17.Qb3+ Ke7 18.Rad1 Rhf8 19.Re2


19...Rxf2+ 20.Rxf2 Bxf2 21.Kxf2 Rf8+ 22.Ke1 Qg1+ 23.Kd2 Qd4+ 24.Kc1 Qxe4 25.Qg3 Qf4+ 0-1


(41) Lintz,Michael Har (1376) - Dubensky,Walter B (1120) [B13]
Wilkerson TNM: U1600 San Francisco (2.42), 14.01.2020

1.d4 d5 2.Bf4 e6 3.Nf3 Nf6 4.e3 Be7 5.Nbd2 c5 6.c3 cxd4 7.exd4 Nc6 8.Bd3 Nh5 9.Bg3 Nxg3 10.hxg3 a6 11.Qc2 g6 12.Ne5 Bf6 13.Ndf3 0-0 14.0-0-0 Bg5+ 15.Kb1 Nxe5 16.dxe5 Be7 17.Qd2 b5 18.Qh6 Bh4 19.Rxh4 Qxh4 20.Qxh4 h5 21.Rh1 Rd8 22.Qxd8+ 1-0

(42) Revi,Frank (1298) - Dunlap,Steven (1037) [D37]
Wilkerson TNM: U1600 San Francisco (2.43), 14.01.2020

1.d4 d5 2.c4 Nf6 3.Nc3 [3.cxd5] 3...e6 4.Nf3 Bd6 5.e3 0-0 6.Bd3 Ne4?? 7.Qc2? [7.Nxe4 dxe4 8.Bxe4] 7...f5 8.a3 Nd7? 9.cxd5 Ng5 10.Qe2 e5 11.e4?? [11.Nxe5] 11...Nxf3+ 12.Qxf3 exd4 13.Nb5 fxe4 14.Qg4 exd3 15.Nxd4 Nf6 16.Qf3 Re8+ 17.Kd2 Ng4 18.Ne6 Bxe6 19.dxe6 Qg5+ 20.Kd1 Qg6 21.Re1 Rxe6 22.Qd5 Rae8 23.Bd2 Kh8 24.Bc3 Nxf2+ 25.Kd2 1-0

(43) Ahrens,Richard Wi (1256) - Nicol,George R (1015) [D37]
Wilkerson TNM: U1600 San Francisco (2.45), 14.01.2020

1.d4 d5 [1...Nf6 2.c4 e6 3.Nf3 1/2-1/2 (56) Carlsen,M (2872)-Xiong,J (2712) Wijk aan Zee NED 2020] 2.c4 e6 3.Nf3 Nf6 4.Nc3 b6?! Probably too early, if White does something about those momentarily weakened light-squared diagonals. [4...Be7; 4...c6; 4...Bb4; 4...c5 5.cxd5 Nxd5 6.e4 Nxc3 7.bxc3 cxd4 8.cxd4 Bb4+ 9.Bd2 Bxd2+ 10.Qxd2 0-0 11.Bd3 Nc6 12.Bc2 Qe7 13.0-0 Rd8 14.Qe3 b6 15.Rfd1 Bb7 16.Rac1 Rac8 17.h4 Na5 18.Bd3 h6 19.g4 Nc6 20.Bb1 Qd7 21.Kh2 Qd6+ 22.Kg1 Na5 23.Bd3 Rxc1 24.Rxc1 Nc6 25.Bb5 Nxd4 26.Qxd4 Qxd4 27.Nxd4 Rxd4 ½-½ (56) Carlsen,M (2872)-Xiong,J (2712) Tata Steel, Wijk aan Zee NED 13 Jan, 2020] 5.e3?! White lets it lie. And now it's more a 4.e3 Queen's Indian. [5.Bg5; 5.cxd5! exd5 (5...Nxd5 6.e4 Nxc3 7.bxc3 c5 8.d5! (8.Bc4; 8.Bd3) 8...exd5 9.Bb5+! Bd7 10.Qxd5!? Bxb5 11.Qxa8 Computers get away with this stuff! But do we humans dare?) 6.Bg5 (6.Bf4; 6.g3) ] 5...Nbd7 6.cxd5 exd5 7.Bd3 Bd6 8.0-0 0-0 9.Re1 c5 10.dxc5 bxc5 11.e4 Ne5 12.Nxe5 Bxe5 13.exd5 Bxc3 14.bxc3 Qxd5 15.Bf4 Rd8 16.Bc2 Qxd1 17.Raxd1 Bg4 18.f3 Be6 19.Bb3 Bxb3 20.axb3 Nd5 21.Bd2 Rd6 22.c4


22...Rad8?? [22...Nc7 sends the knight to the healthy square e6, with a fairly solid position.] 23.cxd5 Of course! But ... [23.Ba5! is a lot better! Black gets no counterplay at all.] 23...Rxd5 24.Re2 Rd3 25.Kf2 Rxb3 26.Bc3 Rbb8 27.Red2 Rxd2+ 28.Rxd2 g6 29.Rb2 Rxb2+ 30.Bxb2 a5 31.g4 [31.Ke3] 31...Kf8 32.Ke3 Ke7 33.Kd3 Kd6 34.f4 Kc6 35.Kc4 Kb6 36.Ba3 a4 37.Bxc5+ Ka5 38.Kd5 h5 39.g5 Kb5 40.Be7 Ka5 41.Ke5 Kb6 42.Kf6 Kc6 43.Kxf7 1-0


(44) North,Jeff (867) - Frank,Robert H (1222) [C37]
Wilkerson TNM: U1600 San Francisco (2.46), 14.01.2020

1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 Nc6 5.h4 f6 6.hxg5 fxg5 7.e5 d5 8.Be2 Bf5 9.d4 Nb4 10.Na3 c5 11.c3 Nc6 12.Bd2 cxd4 13.Nxd4 Bg6 14.Bb5 Qb6 15.Qg4 Be7 16.Nxc6 bxc6 17.Qe6 cxb5 18.Qxd5 Rd8 19.Qxb5+ Rd7 20.Qa4 Qxb2 21.Rd1 Qxa3 0-1

(45) Hall,Diana - Bayaraa,Timothy (1193) [C45]
Wilkerson TNM: U1600 San Francisco (2.47), 14.01.2020

1.e4 e5 2.d4 Nc6 [2...exd4] 3.Nf3 exd4 4.Nxd4 Qf6 5.c3 Bc5 6.Be3 Nge7 7.Bc4 a6 8.Nd2 b5 [8...Nxd4!-/+] 9.Bd5 [9.Be2!] 9...Nxd5 10.exd5 Nxd4 11.cxd4 Bd6 [11...Bxd4?? 12.Ne4] 12.Ne4 Bb4+ 13.Nc3 Bb7 14.0-0 0-0 15.a3 Bxc3 16.bxc3 Bxd5 17.f3 Qg6 18.a4 f5 19.axb5 f4 20.Bc1 Bc4 21.Re1 Rf5? [21...axb5-/+] 22.Qa4 [22.bxa6; 22.Rxa6] 22...Bxb5 23.Qb3+ Kh8 24.c4 [24.Bxf4!] 24...Re8? [24...Qf7!] 25.Bd2 Bc6 26.d5 Ba8 27.Qd3 Ref8 28.Bb4?? d6?? [28...Qb6+-+] 29.Rxa6 Bb7 30.Ra7 Rb8 31.Re7 h5 32.Rxc7 h4 33.h3 Bc8 34.Bc3 [34.Rxg7!] 34...Qg3 35.Bxg7+ [35.Rxg7! Qxg7 36.Rxg7 Rb3 37.Qe4 Rxc3 38.Qe7 and mate] 35...Kg8 36.Rxc8+?! [36.Bc3 is mate in] 36...Rxc8


37.Qxf5?? [37.Qe4!+-; 37.Bc3+-; 37.Bd4 Qe1+ 38.Kh2 Qg3+ 39.Kh1 Qe1+ 40.Bg1+-] 37...Qe1+ 38.Kh2 Qg3+ 39.Kh1 Qe1+ 40.Kh2 Qg3+ 41.Kh1 Qe1+ 42.Kh2 Qg3+ 43.Kh1 Qe1+ 44.Kh2 1/2-1/2


(46) Chambers,Wolfe Na (1182) - Ballantyne,Andrew (877) [A25]
Wilkerson TNM: U1600 San Francisco (2.48), 14.01.2020

1.c4 e5 2.Nc3 Nc6 3.g3 Nf6 4.Bg2 Bb4 5.a3 Bxc3 6.bxc3 d5 7.cxd5 Nxd5 8.c4 Nf6 9.Rb1 0-0 10.Bb2 Bf5 11.d3 Na5 12.Qa4 c6 13.Bxe5 Ng4 14.Bc3 Re8 15.Bxa5 Qxd3 16.Rd1 Qc2 17.Qxc2 Bxc2 18.Rd2 Bb3 19.h3 Nf6 20.c5 Ba4 21.e3 Rab8 22.Ne2 b6 23.cxb6 axb6 24.Bc3 c5 25.Rb2 Red8 26.0-0 Rd5? 27.Bxd5 [27.Bxf6] 27...Nxd5 28.e4 Nf6 29.Be5 Rb7 30.Rd2 Re7 31.f4 Nxe4 32.Rd3 Bb5 33.Rd5 h6 34.Re1 Ra7 35.Nc3 Bc4 36.Rd8+ Kh7 37.Rxe4 Be6 38.Nb5 Ra5 39.Nc7 Bf5 40.Re3 Bxh3 41.Kh2 Bf5 42.Nd5 b5 43.Rc3 b4 44.axb4 cxb4 45.Nxb4 Rb5 46.Nc6 Rb2+ 47.Kg1 Bh3 48.Ne7 Rg2+ 49.Kh1 f6 50.g4 Re2 51.Rcc8 Re1+ 52.Kh2 Re2+ 53.Kxh3 Re3+ 54.Kg2 Re2+ 55.Kf3 g6 56.Bxf6 Rxe7 57.Rh8# 1-0


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