Nov 16, 2019
By Abel Talamantez
Table of Contents
- Round 4 of TNM
- Tournament Director's Corner
- Chess Re-Imagined
- Endgame Analysis
- Wednesday Night Blitz Update
- FM Paul Whitehead's column: Friendly rivaries #16
- Tony's Teasers
- Scholastic corner
- GM Nick de Firmian's Column
- TNM Games
TNM Round 4 Wrap Up
NM Russell Wong, NM Michael Walder, Jonah Busch and Illia Gimelfarb Continue Big Runs in the TNM
Round 4 of the TNM saw an upset on the top board and a seperation in the bottom 2 sections as we approach the midway point in the final TNM of 2019.
In the Championship section. NM Russell Wong pulled off an upset of tournament #2 seed NM Eric Li. Wong maintained positional advantage throughout much of the game and held that adavantage to the very end. It seemed in the game that Li's unwillingness to trade queens and keep them on the board searching for the win may have done him in. An impressive win by Russell. NM Michael Walder was victorious against NM Larry Snyder after Snyder hung a pawn in an endgame under time pressure, and he ultimately lost on time. FM Kyron Griffith continued to rebound with a win versus Steffen Thieme. As it stands after 4 rounds, Walder and Wong are co-leaders at 3.5/4 and Griffith and Steven Gaffagan sit at 3/4.
Top 2 boards do battle for round 4
In the A/B section, Jonah Busch climbed into the sole lead of first place with a victory over Sergey Khristoforov. This puts him at a perfect 4/4. The other previous perfect score with 3/3 was Robert Drane, who took a half point byr this week, but sits at 2nd place with Adam Mercado, who won against Aezed Raza.
Jonah Busch (left) contemplates the board against Sergey Khristoforov
In the Under 1600 section, Illia Gimelfarb showed he is a strong newcomer to the scene, winning against the always tough Alber Starr and maintaining a perfect score with 4/4. Sitting at 3.5 are three tough players in Venugopal Mani, Nursultan Uzakbaev, and Andy Vincent Ford. Of these 4 top players, 3 are unrated! It will be interesting to follow how these unrateds do over the course of the marathon, as it is a true test of endurance over the course of 9 rounds. This is part of what makes the marathon a true test of will, resilience and strength.
FM Paul Whitehead steps out of the broadcast booth to act as lamp tech during round 4
She plays! Club General Manager Judit Sztaray takes in an extra rated game
For the complete standings and information for the TNM, please follow this link:
You can re-live the live broadcast from our Twitch channel by visiting our YouTube page here:
Tournament Director's Corner
Draw Claim in Time Scramble Shows Value of Notating and Paying Close Attention
Time scrambles during tournaments make for some exciting viewing, but it also makes for some tense moments over the board. In our G/120;d5 format, players may stop notating if either player goes under 5 minutes, but what is lost in doing so is making a draw claim that requires notation, more commonly, a threefold repetition. The relevant FIDE rule is here:
9.2.1 The game is drawn, upon a correct claim by a player having the move, when the same position for at least the third time (not necessarily by a repetition of moves):
22.214.171.124 is about to appear, if he first writes his move, which cannot be changed, on his scoresheet and declares to the arbiter his intention to make this move, or
126.96.36.199 has just appeared, and the player claiming the draw has the move.
The important part of this rule is that the position repeat, it does not necesarily have to happen in the same 3-move sequence.
In the TNM game on board 4, Kristian Clemens had battled back from a losing position to achieve a very difficult and complex endgame. Both players were under 5 minutes, but Clemens continued recording his moves. Amidst the time scaramble, Clemens called me over to claim a threefold repetition. He told me his next move would be Rb7, achieving this position:
Normally if such a claim is made, I would have to verify that the scoresheet looks accurate and replay the game move by move. However, since the game was played on a DGT board, it indicates to us inside the computer room if there has been a threefold repetition on the board. I verified the scoresheet matched the moves recorded on the DGT board and had Juan enter the proposed Rb7 move into the computer, and viola! The computer undicated a 3-fold repetion on the board, as seen from the picture:
You can see at the top right, it says Threefold repetion on move 58. This makes for a handy and quick way to verify a position during a game that may otherwise have taken 5-10 minutes in a critical moment. An efficient use of technology at our TNM.
In another famous example, GM Sergey Karjakan successfully claimed a threefold repetition during a the 2015 FIDE World Cup semi-final against GM Pavel Eljanov in a tiebreak G/10 +10 game that sealed victory in the match and a spot in the 2016 Candidates Tournament as a World Cup finalist. He then went on to win the Candidates and played GM Magnus Carlsen for the workd championship in 2016.
An article for the match and the game can be seen here:
What was fascinating is that he claimed it being two pawns down, though in an opposite color bishop ending, and did so from memory.
by William Thibault; Computer Scientist and TNM Regular
I recently took a bye from the TNM to be involved with a chess exhibition as part of a benefit art show at The Power Station in Dallas. There was an article on USChess.org written by WIM Alexey Root about it: https://new.uschess.org/news/chess-moves-homeless-children/
This is a short video from the event:
William Thibault appears from 1:25 to 2:04 in that linked video (Abel Talamantez)
IM (GM Elect) Zura Javakhadze played a series of rapid, team, and blindfold games with members of the audience. Scot Gresham-Lancaster used his software to "sonify" (convert to sound) the moves and board positions, while Sharath Chandra converted the position evaluation to sound. I wrote code to interface the DGT board and Stockfish to Scot's system over the network (using OpenSoundControl over UDP (glavin)). My software also used the board data to draw live computer-generated visuals of the position, suggested moves, and attacks.
The attempt to sonify the moves so they could be understood by the blindfolded player was largely a success, but occasionally Zura needed to ask the referee to verify which piece made a move. The overall goal, to create a fun chess experience, was a great success. The venue being an art gallery reception, the audience could be a bit noisy, but was quieted to a hush during the dramatic blindfold games, allowing Zura to better hear the move sonification.
Below are the games Javakhadze played without sight of the board against randomly selected sighted opponents. A human referee made moves on the board for Javakhadze, who sat nearby wearing a blindfold.
[Event "Chess Reimagined (blindfold exhibition)"] [Site "Dallas"] [Date "2019.10.05"] [White "Javakhadze, Zura"] [Black "NN"] [Result "1-0"] 1. e4 Nc6 2. d4 g6 3. Nc3 Bg7 4. Nf3 Nf6 5. Bc4 d5 6. exd5 Nb4 7. Ne5 Nfxd5 8. Nxd5 Nxd5 9. Nxf7 Kxf7 10. Qf3+ Bf6 11. Bxd5+ e6 12. Bb3 Qxd4 13. O-O Qb6 14. Bg5 h6 15. Qxf6+ Kg8 16. Qd8+ Kh7 17. Qe7+ Kg8 18. Bf6 Qd6 19.Qg7# 1-0 [Event "Chess Reimagined (blindfold exhibition)"] [Site "Dallas"] [Date "2019.10.05"] [White "Javakhadze, Zura"] [Black "NN"] [Result "1-0"] 1. e4 e5 2. f4 exf4 3. Nf3 Nc6 4. Bc4 g6 5. d4 d6 6. O-O Bg4 7. Bxf4 Bxf3 8. Rxf3 Qd7 9. Bxf7+ Qxf7 10. Bxd6 Qc4 11. Rxf8+ Kd7 12. Rxa8 Kxd6 13. Nc3 Nxd4 14. Nb5+ Qxb5 15. Qxd4+ Kc6 16. Rd1 Nf6 17. Qxf6+ Kc5 18. Rd5+ Kb4 19. Qc3+ Ka4 20. Qa3# 1-0
To make it easier for chess fans in the audience to follow the moves,I also set up a webpage with the live game and posted some QR-codes pointing to it, but only one person accessed it during the event. (You can still visit it now ( http://www.vjlove.com/~tebo/chess/ ) to see all the games played; click on the row of dots near the bottom to see a list of games, mouse-over the board to see other controls.)
Although this kind of multisensory avalanche might be anathema to many chess players during a game, it may serve to help popularize the game, or provide entertainment during matches. The sonification of chess moves and positional evaluations should be useful for learning, adaptive interfaces, and in other tabletop games. (For more information about Scot and Sharath's work on sound at UT Dallas, check https://atec.utdallas.edu/content/data-stethoscope/ )
On a personal note, I was a bit reluctant to visit Texas, after growing up near it and forming the typical prejudices. But, I found the people in Dallas to be friendly and relaxed, and met some really great people. Perhaps most importantly, I felt I returned with a deeper understanding of chess (although subsequent tournament results make me doubt it.) Special thanks to Alden Pinnell and Greg Ruppe of The Power Station.
The art of the endgame and its importance have been well elucidated by many a strong master long, long before me and will be for long , long afterwards.
But as a humble 1600, there is it seems a gap in chess literature on the kinds of positions that arise on a somber Tuesday night in San Francisco at our level. Kotov crafted the grandmaster’s mind pretty well in his works but what about the amateur’s mind? Before we can aspire to become a master, shouldn’t we develop a complete understanding of ourselves: the facets of our game that we do well and the ones we fail at.
I have presented an endgame which occurred in our Under 1600 section that I believe can certainly benefit players of our section and might be of interest (if rather obvious) to strong players. I was fascinated watching the action unfold , playing at an adjacent board as this thriller unwrapped. I have studied this ending , initially without a computer and then with and presented what an amateur thinks of both the psychology and the play involved in such positions and how we can make that leap to expertise that we all strive to .
Game : Gimelfarb – Hansen , Round 3, Board 10 . Result: 1-0
Gimelfarb , the current leader (as of round 4), is making quite the wave in the under 1600 section. The bane of players in our section is something even masters do not encounter : the curse of the unrated player. The unrated player can be anywhere between 300 – a masquerading 2000 and Gimelfarb’s rather solid play so far indicates the latter than the former. But in round 2 against the solid Matteo Hansen, the second seed officially in the section, Gimelfarb ventured into an Alapin Sicilian and found himself a piece down heading into the endgame. They reached the following position on move 36.
White is clearly a full piece down with little compensation. Black has all the time in the world to round up white’s extra pawn. Black clearly has the more active king. And to add to this black clearly has extra time on the clock . From Hansen’s games. It is rather clear that he has pretty sound technique. Not wishing to complicate/prolong things further, he goes for the move 36. .. Bxf4!? .
Objectively, it’s absolutely not a bad choice. Hansen trusts his technique enough to convert the resulting ending even with three passed pawns on the kingside. After all, he has the knight and the more active king. And looks to be winning a pawn too on f4. This is where dear reader, the masters differ from the amateurs. It is not wrong when I say, I personally would have done the exact same thing that Hansen did , snapped off the bishop and taken the f4 pawn. But once 37. gxf4 hits the board, Hansen starts to realize that it’s not so straightforward after all. The passed g pawn is one scary pawn and is three tempi away from a queen. The knight , the favourite piece of many a Grandmaster including GM Maurice Ashley and the five time world champion GM Viswanathan Anand , is very powerful when used correctly. It thrives on outposts , on tricks, on grabbing material in elegant sequences.
Put yourself in Hansen’s shoes dear reader, you realize that the endgame is not so straightforward. You have the knight to try and stop the three passers. Let’s employ a Kotov style candidate move list and try to summon the spirits of the great school of Mark Dvoretsky and concretely calculate the win till the end.
The first move that probably occurs to any player of our (u1600) level is the move 37. ..d5. I mean, how can that be bad? You take advance a pawn, stop a tempo on the knight if the white king attempts to penetrate. And in fact this is what Hansen did play in the game. However, what he missed was the fact that the game is actually immediately a dead draw. The reason? The passed pawns of white are just too fast for the knight. And white uses the time that black manuvers his knight to simply get his king penetrating the queenside. The possibilities here are endless but here is a sample line :
A simple approach: white moves his king to d3. Any pawn grabbing on f4 is met with advance of those ominous passed pawns. While black reroutes his knight to nab those pawns, white goes over to the queen side and gobbles up the black pawns. Black will be a knight up in the ending to no avail.
(37 . ..d5 38. Kd3 Kxf4 39. Kd4
Nd6 40. Kxd5 Nf5 41. Kc5 Nxh4 42. Kb6 Kxg5 43. Kxb7 ½ - ½ )
“But writer!” I hear you yell through the screen. “What if I use my king to shield the white king from entering? “ …well that would be no good either. White will now march his three pawns and black will spend time rerouting the knight to deal with the pawns and white’s three pawns mean the black king needs to assist in dealing with those pawns as well. A sample line is presented below.
(37. .. d5 38 Kd3 Ke6 39. h5 Kf5 40.
Kd4 Kxf4 41. h6 Ne5 42. Kxd5 Ng6 43. Kc5 ½ - ½)
The winning idea? Well, the key realization that knights love outposts. Needing to map out in your head a good plan for the knight. The importance of one square on the board : d5.
The understanding that the knight needs to get to d5 to grab those pawns while the black king prevents any entry from the white king. Here is a sample line .
(37... Nb6 38. Kd3 Nd5 39. Kd4
Nxf4 40. Kc4 Ke6 41. Kb4 d5 42. Kc5 Ke5 43. Kb6 0-1)
I sit here in hindsight assisted wisdom that Hansen missed a key win . But realizing the critical moments is the fine line that separates us from the next group of players. Knowing when the position is auto-pilot and when it isn’t . There is no one who sympathizes more with Hansen than me having thrown away many a win myself. And there is no one who is in awe of the resourcefulness of Gimelfarb to hang in there when many would have thrown in the towel than me. Hoepfully this is a good lesson for not just Hansen but to all of us u1600-ers in the fact that it isn’t over until the scoresheets are signed and a piece (especially the knight) is not the game won. It’s a reminder that we need to follow Kotov’s advice, take a deep breath , a sip of tea and concretely calculate the win out in such positions .
What followed was rather painful. Hansen , unfortunately ended up losing the game.
37. gxf4 d5 38. Kd3 b5 39. h5 Ke6 40. h6 Kf7 41. Kd4 Nb6 42.
f5 b4 43. g6+ Kg8 44. f6 Nd7 45. f7+ Kf8 46. Kxd5 a5 47. Ke6 a4 48. g7# 1-0
But watch out for him later in the tournament. Painful lessons can often lead to fruitful outcomes.
Wednesday Night Blitz Update
Expert Manuel Santos finished in clear 1st with a 5 - 1 score in the November 13th edition of the Wednesday Night Blitz. Clear 2nd with a 4.5 - 1.5 tally was Expert Andy Trattner,who also coaches the free kids' class on Saturdays, and rounding out the winners circle was A player Max Elisman with 4 - 2.
See you next week!
By FM Paul Whitehead
Continuing from here: https://www.milibrary.org/chess-newsletters/890#Friendly
The mid-eighties were my last years of playing in tournaments with any frequency. I was working as a nursery school teacher, had taken up photography in a serious fashion, and I was making many friends outside of the chess world.
But chess wasn’t done with me yet…
In 1983 I played in a whopping (for me) 9 tournaments, winning 7 of them outright (those played in Ireland – see newsletters 869 and 870).
In 1984 I played in only a few events. My results were so-so, but I did win the 9th Northern California (Bagby Memorial) Championship held at the Mechanics’, ahead of GM Biyiasis, Mar, Winslow and others.
1985 was my last big year in chess: I won the 10th Northern California Championship, tying for 1st with Biyiasis this time, and also played in the New York Open and the 1st Miz Brown’s International.
In 1986 I played in but one tournament, the 11th Northern California Championship, and in 1987 I again played in only one tournament: the 12th Northern California Championship!
In the years 1988 and 1989 I played not a single tournament game…
I had finally found a rhythm: one tournament a year! And then zero tournaments a year!
Was this the end of my chess career? Tune in later and find out!
I played some good chess in the 1980’s, as well as some bad, and you can find some of those games in previous newsletters.
Here’s a few more games, and of course the stories that tag along with them – for me just as interesting as the games themselves!
(1) Whitehead,Paul A (2320) - Kopec,Danny [B40]
Lloyds Bank op 07th London, 1983
During my stay in Ireland I hopped on the boat-train from Dublin to London to play in the Lloyd Banks Open. My result was a reasonable 4-3 score against strong opposition. I shared a hotel room with noted Seattle chess maverick James Harley McCormick, six-time Washington State Champion, and if you'd like I could tell you a story or two... 1.e4 My opponent was a well known author and computer scientist, who even has an opening named after him, the "Kopec System" of 1.e4 c5 2.Nf3 d6 3.Bd3!? Unfortunately for Danny, he was playing the originator of the "Whitehead System" for which he had no defense. 1...c5 2.Nf3 e6 3.d3 Nc6 4.g3 d5 5.Nbd2 Nge7
(2) Baja,Victor - Whitehead,Paul [B44]
Golden Bear Open, 1984
Victor Baja is a strong master just a year older than I, and a frequent rival in tournaments at the Mechanics' Institute and in the Bay Area. He hasn't played for a long time. Victor was also a fine problemist, and Pal Benko published quite a few of his compositions in Chess Life. 1.e4 c5 This game is a long, tough fight, finally decided when White chooses activity over maintaining the status quo. 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nb5 d6 6.c4 Nf6 7.N1c3 a6 8.Nd4 Bd7 9.Be2 Be7 10.0-0 0-0
(3) Maser,Thomas F - Whitehead,Paul A (2370) [B49]
New York op New York (1), 1985
Tom Maser is a wonderful man and a great friend to the chess community. I think it's funny that the only time we crossed swords was 3,000 miles away from the Bay Area, in New York City. 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6
(4) Whitehead,Paul A (2370) - Edelman,Daniel (2200) [B07]
New York op New York (8), 1985
Danny Edelman is an International Master (1993) who lives in Connecticut. This was our only game, the final round of the New York Open, with almost nothing at stake. 1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Bg5 Bg7 5.f3 Nbd7
This weeks problem is mate in 2 by Victor Baja originally published in George Koltinowski's Chess column in the San Francisco Chronicle on 10/27/1978. Victor is a very strong chess master and problemist who was very active at the Mechanics' Institute Chess Club in the 1970's and 1980's. Victor's compositions were regularly featured in Chess Life in Pal Benko's Bafflers column. Victor is still a prolific composer: you can find many of his compositions here: https://pikdo.net/u/rook_and_
Last week's solution:
Darbo Densmore, 1917. Mate in 3.
1. Qd2!! Qd4
2. Qh6+ Qf6
Report on the 11/10 Scholastic Swiss
A small but fun group of scholastic players had their first tournament in November. Total of 12 players played in two sections. Araddhya dominated the top section with 3.5/4 points, while there was a massive 3-way tie for the second place: Ilana, Ariel and Jake both scored 2/4. In the lower section Stanley shined with 3.5/4 to grab the sole first place, while Hudson took clear second with 3.0/4. Thank you for all the players who came last Sunday!
Thanksgiving Camp @ Mechanics' Institute
Send your child to a fun chess camp at the oldest chess club in the US! We are holding Thanksgiving break chess camp Monday through Wednesday, from 9AM to 4PM.
You can enroll your child to a morning only (9AM-12:30PM), afternoon only (12:30-4PM), or full day camp (9AM-4PM), for one, two or three day.
We prorate the fees, and have a very family friendly cancellation policy!
Limited amount of scholarship is available for those who would not be able to afford the camp, but interested in attending a chess camp!
Coach Andrew Schley is excited to prepare for this camp that already has several students! Daily activities include the usual quick lectures, then paired play, fun blitz or bughouse, puzzles, tactics, and some surprise activities as well.
Lunch is not included. Any other question, we are happy to answer: email@example.com
More information: www.milibrary.org/chess/thanksgiving-break-chess-camp-mi
Register online at: https://mechanics-institute.jumbula.com/SeasonalCamps/Thanksgivingcamp
GM Nick de Firmian's Column
Great Women Chess Players: Week 4 - Hou Yifan
Hou Yifan is another (of three) Chinese players to become women’s World Champion. She follows in the tradition of the first great women’s champion from China, Xie Jun. Xie Jun came to play in our Mechanics Institute’s 3rd Pan Pacific International Tournament in 1995, cementing the West Coast – China connection in chess and culture. Hoi Yifan however reached an elite level many talented men would be proud to have done. She is a true chess prodigy and achieved a level far above all other women players of her generation. Her peak ELO rating is 2686, making her borderline super grandmaster in the men’s world. She won the women’s world championship 3 times starting in 2010. Then she seems to have gotten bored with women’s chess and FIDE politics so played only in men’s tournaments.
Many of our club players will remember the fascinating talk Yifan gave here at the Mechanics’ Institute in May last year (2018). She recounted her developing years in China and her current interests. She is a Rhodes’ Scholar! - so studying at Oxford. While in the Bay Area she was doing an internship down on the Peninsula in one of our tech companies (which remains anonymous). She has a delightful aggressive style. I expect our readers will thoroughly enjoy her games below.
(1) Anish Giri (2720) - Yifan Hou (2603) [B70]
Tata Steel Group A Wijk aan Zee NED, 18.01.2013
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6
(2) Jan Smeets (2573) - Yifan Hou (2527) [C14]
Corus Group B Wijk aan Zee NED (7), 19.01.2008
1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.h4
(3) Yifan Hou (2618) - Nana Dzagnidze (2550) [B41]
FIDE Women's Grand Prix Khanty - Mansiy Khanty-Mansiysk RUS (3.2), 11.04.2014
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.c4 Nf6 6.Nc3 Qc7 7.Be2 b6 8.0-0 Bb7 9.Qd3 Nc6 10.Nxc6 dxc6 11.f4
Annotations by GM Nick de Firmian
(1) Wong,Russell (2200) - Li,Eric (2303) [B90]
Mechanics' Fall TNM: Championship San Francisco (4.1), 13.11.2019
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.a4 e5 7.Nb3 Be6 8.Bg5 Nbd7 9.Nd5!? Bxd5 10.exd5 Be7 11.Be3 0-0 12.a5 Rc8 13.Be2 Nc5?! 14.Nxc5 dxc5 15.c4 Bd6 16.Qc2 Qe7 17.g4!? Very aggressive, but may be good. 17...e4 18.g5 Nd7 19.Bg4 [19.h4] 19...Rce8 20.h4 Qd8 21.Bxd7 Qxd7 22.0-0-0 White decides he has to put his king somewhere, and gives up on b2-b4 for now, [but 22.h5 would have been less comittal.] 22...b5 23.axb6 Qb7 24.Bd2 Qxb6 25.Rhe1 Be5 26.Bc3 Bxc3 27.Qxc3 Qd6 28.Qg3 Qd7 29.Qa3 Qd6 30.Qg3 Qb6?! 31.d6 Rb8 32.Qc3 Rfd8 33.Rxe4 Rxd6 34.Rxd6 Qxd6 35.Qe5! Qf8 Black avoids the bad endgame but this is worse. 36.Qc7 Rd8 37.Re5 f6 38.Re7 Threatening Rxg7+ 38...Rd4 39.gxf6 gxf6 40.Qg3+ Kh8 41.Qe3 Rd8 42.Kb1 Qg8 43.Qxc5 Qg6+ 44.Ka2 Qc2 45.Qc6 Qf5 46.Re8+ Rxe8 47.Qxe8+ Kg7 48.Qe7+ Kg6 49.Qe3 Qc2 50.c5 Qa4+ 51.Kb1 Kf7 52.Qc3 Qc6 53.Qd4 Ke7 54.Ka2 Qe6+ 55.Ka3 Qc6 56.b4 h5 57.Qe3+ Kf7 58.f4 Qh1 59.Qc3 Qc6 60.f5 Ke7 61.Qe3+ Kf7 62.Qe2 a5
(2) Snyder,Larry (2061) - Walder,Michael (2101) [B22]
Mechanics' Fall TNM: Championship San Francisco (4.2), 13.11.2019
1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4 5.Nf3 e6 6.cxd4 d6 7.Bc4 Nc6 8.0-0 Be7 9.Qe2 0-0 10.a3 Bd7 11.Qe4 Na5 12.Bd3 f5 13.exf6 Nxf6 14.Qe2 Nb3 15.Ra2 Nxc1 16.Rxc1 Nd5 17.Qe4 g6 18.Nc3 Rc8 19.Raa1 Nf4 20.Bf1 Bc6 21.Qe3 Bg5 22.Nxg5 Qxg5 23.Qg3 Qf6 24.Qe3 Rce8 25.Ne4 Qe7 26.g3 Nd5 27.Qd2 Nf6 28.Nxf6+ Rxf6 29.Bg2 Bxg2 30.Kxg2 Ref8 31.Rf1 b6 32.Rae1 Qb7+ 33.Kg1 Qd5 34.Qe3 g5 35.Qe4 Qxe4 36.Rxe4 Rc8 37.Re2 g4 38.Kg2 Rc4 39.Rd2 Kf7 40.f4 gxf3+ 41.Rxf3 Rxf3 42.Kxf3 Rc1 43.Ke3 Here White had more than 30 minutes left to Black's under seven; but a few moves later Black had more time -- and was outplaying White! 43...Kg6 44.Kd3 Rh1 45.Ke3 h5 46.Rf2 Kg5 47.Kf3 Rb1 Around here Mike remembered he didn't have to keep score with less than three minutes on his clock. And the DGT board performed well to show the finish. 48.Re2 Kf5 49.Kg2? Rd1 50.Rf2+ Kg5 51.Re2 Kf6 52.Rf2+ Ke7 53.Rf4 Kd7? [53...Rd2+ 54.Kh3 Rxb2 55.Rh4 Rb5 looks like the way to go.] 54.h4?! Gives Black angles again. [54.Kf3; and 54.Rh4 lead to a draw.] 54...Kc6?
(3) Thieme,Steffen (2014) - Griffith,Kyron (2452) [B21]
Mechanics' Fall TNM: Championship San Francisco (4.3), 13.11.2019
1.e4 c5 2.f4 d5 3.exd5 Nf6 4.Nf3 Nxd5 5.d4 e6 6.c4 Nf6 7.Nc3 cxd4 8.Qxd4 Nbd7 9.Nb5 Bc5 10.Nd6+ Ke7 11.Nxc8+ Rxc8 12.Qd3 Qb6 Black has a crushing lead in development. 13.Qc2 Ng4 14.Bd3 Rhd8 15.Rf1 Bb4+ 16.Ke2 Nc5 17.Bxh7 f5 18.a3 Nd3 19.Ne5 Nxc1+ 20.Qxc1 Bd2 0-1
(4) Clemens,Kristian (1956) - Boldi,Ethan (2055) [D46]
Mechanics' Fall TNM: Championship San Francisco (4.4), 13.11.2019
1.Nf3 Nf6 2.d4 e6 3.c4 d5 4.Nc3 c6 5.e3 Nbd7 6.Bd3 b6 7.0-0 Bb7 8.cxd5 cxd5 9.Qa4 Be7 10.Ne5 0-0 11.f4 Nxe5 12.fxe5 Ne4 13.Nxe4 dxe4 14.Be2 Bg5 15.Bd2 a6 16.Rac1 b5 17.Qa3 Bd5 18.Kh1 Be7 19.Qc3 Rc8 20.Qxc8 Qxc8 21.Rxc8 Rxc8 22.Bd1 Bxa2 23.b3 g6 24.Kg1 Bb1 25.Bg4 Bd3 26.Ra1 Rc2 27.Be1 Bg5 28.Bf2 Rb2 29.h4 Be7 30.Rxa6 h5 31.Bh3 Rxb3 32.Ra7 Bb4 33.Bg3 Ra3 34.Rb7 Bc4 35.Bf4 Ra8 36.g4 Bf8 37.gxh5 gxh5 38.Bg2 Bd3 39.Bh3 Bg7 40.Kf2 Bc4 41.Bg2 Bd3 42.Bh3 Rd8 43.Bg5 Rc8 44.Kg3 Ra8 45.Kf2 Ra5 46.Rb8+ Kh7 47.Rb7 Kg6 48.Rb6 Bc4 49.Bg2 Bd5 50.Bf1 Ra2+ 51.Kg3 Bc4 52.Bg2 Bd3 53.Bf4 Kh7 54.Rb7 Kg6 55.Rb6 Kh7 56.Rb7 Kg8 57.Rb8+ Kh7 58.Rb7 Tough defense by Kristian to hold a pawn down. 1/2-1/2
(5) Marcus,Joel (1850) - Tsodikova,Natalya (2196) [A48]
Mechanics' Fall TNM: Championship San Francisco (4.6), 13.11.2019
1.d4 Nf6 2.Nf3 g6 3.Bf4 Bg7 4.e3 d6 5.h3 0-0 6.Be2 c5 7.0-0 b6 8.Nbd2 Bb7 9.Bh2 Nbd7 10.a4 a6 11.c3 Ra7 12.Re1 Qa8 13.Bf1 Ne4 14.Nxe4 Bxe4 15.Nd2 Bc6 16.Nc4 d5 17.Nd2 e5 18.Nf3 e4 19.Nd2 c4 20.b3 b5 21.a5 f5 22.Nb1 Bh6 23.bxc4 dxc4 24.Na3 Nf6 25.Nc2 Nd5 26.Qd2 Qd8 27.g3 g5 28.Bg2 Raf7 29.Re2 Re8 30.Rae1 Qxa5 31.Nb4 Bb7 32.g4 fxg4 33.hxg4 Bf8 34.Rb1 Qb6 35.Be5 Nxb4 36.cxb4 Qe6 37.Bh3 h5 0-1
(6) Hakobyan,Sos (1809) - Pane,Gianluca (1887) [B40]
Mechanics' Fall TNM: Championship San Francisco (4.7), 13.11.2019
1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.a4 Nf6 5.c3 Qc7 6.g3 b6 7.Bg2 Bb7 8.Qe2 d6 9.0-0 Be7 10.Re1 0-0 11.h4 Na5 12.Nbd2 e5 13.Nf1 Nb3 14.Ra2 c4 15.N3d2 cxd3 16.Qxd3 Nc5 17.Qc2 d5 18.exd5 Bxd5 19.Bxd5 Nxd5 20.Ne4 Kh8 21.Nxc5 Bxc5 22.Qe4 Nf6 23.Qxe5 Bxf2+ 24.Kg2 Qc6+ 25.Kxf2 Ng4+ 26.Kg1 Nxe5 27.Rxe5 Rfe8 28.Re3 Rxe3 29.Bxe3 Re8 30.Kf2 Re6 31.Ra1 Rf6+ 32.Kg1 h6 33.Bd4 Re6 34.Be3 Qc4 35.Rd1 Qxa4 36.Rd2 Qc6 37.Rf2 Rf6 38.Rd2 Rd6 39.Rf2 f6 40.Nd2 Re6 41.Nf1 Qe8 42.Bd4 Re2 43.b4 Rxf2 44.Kxf2 Kh7 45.Nd2 f5 46.Nf3 Qe7 47.Ne5 f4 48.Nc6 fxg3+ 49.Kxg3 Qe1+ 50.Kf4 Qxh4+ 51.Ke5 h5 52.Kd6 Qf4+ 53.Be5 Qf7 54.Nd4 h4 55.Ne6 Qg6 56.Bxg7 Qxg7 57.Nxg7 Kxg7 58.Kc6 h3 59.Kb7 h2 60.Kxa7 h1Q 61.Kxb6 Qc1 62.b5 Qxc3 63.Ka6 Qc8+ 64.Ka7 Qc7+ 65.Ka8 Qa5+ 0-1
(7) Urquhart,Joe (1957) - Winslow,Elliott (2248) [E90]
Mechanics' Fall TNM: Championship San Francisco (4.8), 13.11.2019
1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.Nc3 0-0 5.e4 d6 6.h3 e5 7.d5 a5 8.Bg5 h6 9.Be3 Na6 10.Qd2 [10.g4; 10.Nd2 Nd7! 11.g4!] 10...Nc5! 11.Bxc5 [11.Bxh6 Ncxe4 12.Nxe4 Nxe4 13.Qe3 f5 14.Bxg7 Kxg7 15.g4 Qf6 16.gxf5 Qxf5 17.Bd3 Qxf3 18.Bxe4 Qxe3+ 19.fxe3 Bf5 20.Bg2 Rh8 21.Rc1 b6 22.Kf2 Rh5 23.Rc3 Rf8 24.Kg3 Rg5+ 25.Kh2 Be4 0-1 (25) Fernandez Aguado,J (2312)-Goossens, E (2224) France 2007; 11.Bd3! Nh5 (11...Nxd3+ 12.Qxd3 Nh5 13.Qd2 Nf4 14.Bxf4 exf4 15.Qxf4 f5 16.Qg3 fxe4 17.Nd2 Bf5 18.0-0 Be5 19.Qe3 Qh4 20.Ndxe4 g5 21.f3 Bxh3 22.Qf2 Qxf2+ 23.Kxf2 Bf5 24.Ke2 Rae8 25.Kd3 Kg7 26.Rh1 Bxc3 27.bxc3 Bxe4+ 28.fxe4 Rf4 29.Rae1 Rf2 30.c5 Rxg2 31.Rb1 Rg3+ 32.Kd4 dxc5+ 33.Kxc5 Rxe4 34.c4 b6+ 35.Kb5 Rc3 36.d6 Re5+ 37.Ka6 Rxc4 38.dxc7 b5 39.Rhc1 Re6+ 40.Kxb5 Rxc7 41.Rxc7+ Kg6 42.Rc6 Rxc6 43.Kxc6 g4 44.Kd5 Kg5 45.Ke4 h5 46.Rb5+ Kh4 47.Kf4 a4 48.a3 g3 49.Kf3 g2 50.Kxg2 1-0 (50) Ulaneo,R (2085)-Kimelman,G (1933) La Paloma 2014; 11...Bd7 12.0-0-0 Nxd3+ 13.Qxd3 Nh5 14.Qd2 g5 15.g4 Nf4 16.Ne2 c6 17.Ng3 cxd5 18.cxd5 Ba4 19.b3 Bb5 20.Ne1 a4 21.b4 Rc8+ 22.Kb1 Rc4 23.Rc1 Qc7 24.Nf5 Ne2 25.Rxc4 Bxc4 26.f3 f6 27.h4 Bb5 28.hxg5 fxg5 29.Nxh6+ Bxh6 30.Rxh6 Qc4 31.Bc5 Nc3+ 32.Ka1 Nxe4 33.fxe4 Rf4 34.Rxd6 a3 35.Rg6+ Kf7 36.Rxg5 Rxe4 37.Rf5+ Ke8 38.Rf8+ Kd7 39.Rf7+ Ke8 40.Rf8+ Kd7 41.Nc2 Re2 42.Nxa3 Rxd2 43.Nxc4 Bxc4 44.Rf7+ Kd8 45.Rxb7 Rxa2+ 46.Kb1 Bxd5 47.Rb6 Bb3 48.g5 Kc7 49.Rf6 Rg2 50.Be3 Bc4 51.Kc1 Kd7 52.Rb6 Re2 53.Bc5 Rg2 54.g6 Kc7 55.Rf6 Kd7 56.Be3 Bd3 1/2-1/2 (56) Nita,M (2078)-Castro,H Ontario 2012; 11...Nfd7 12.Bc2 Kh7 13.g4 Qe7 14.0-0-0 b6 15.Qe2 Nb8 16.g5 h5 17.Rdg1 Nba6 18.b3 Bd7 19.a3 Rfb8 20.a4 Nb4 21.Kb2 Rh8 22.Qd2 Rae8 23.Rh2 Nba6 24.Rd1 Nb4 25.Bb1 Qd8 26.Rdh1 Re7 27.Rg1 Ree8 28.Rgh1 1/2-1/2 (28) Belsley,A (1687) -Oliveira,M (1828) Torres Vedras 2011) 12.Bxc5 (12.Bc2 Kh7 13.g4 Nf4 14.Bxf4 exf4 15.Qxf4 f5 16.exf5 gxf5 17.0-0-0 Bxc3 18.bxc3 Qf6 19.Nd4 Ne4 20.Bxe4 fxe4 21.Qxe4+ Qg6 22.Qxg6+ Kxg6 23.f3 Bd7 24.Rde1 c5 25.dxc6 Bxc6 26.Re6+ Kg5 27.h4+ Kf4 28.Rxh6 Bxf3 29.Nxf3 Kxf3 30.g5 Kg2 31.Rd1 Rae8 32.Rhxd6 Rf4 33.R6d4 Kg3 34.R1d3+ Kg4 35.Rxf4+ Kxf4 36.Rd4+ Kf5 37.Kb2 b6 38.Rd6 Re2+ 39.Kb3 Re1 40.Rf6+ Kg4 41.Rh6 Rb1+ 42.Kc2 Ra1 43.Kb2 Rg1 44.g6 Kf5 45.h5 Kf6 46.Rh7 1-0 (46) Etxagibel Larranaga,A (1964)-Rodriguez Cabrera,F (1973) Azkoitia 2010) 12...dxc5 13.0-0-0 Nf4 14.g4 h5 15.Ne2 Nxe2+ 16.Qxe2 hxg4 17.hxg4 Bxg4 18.Rdg1 Bxf3 19.Qxf3 Qf6 20.Qh3 Rfd8 21.Rg3 Ra6 22.Qh2 Qf4+ 23.Kc2 Rf6 24.f3 Kf8 25.Rh3 Qxh2+ 26.R1xh2 Rf4 27.Kb3 Rd6 28.Kc3 Ke7 29.Rh1 Rb6 30.b3 Bf6 31.Rb1 Rh4 32.Rxh4 Bxh4 33.Rf1 Bg5 34.Rh1 Bf6 35.Rb1 Bg7 36.Rg1 Kf6 37.Bc2 Bh6 38.Rh1 Kg7 39.Re1 Bf4 40.Rh1 Be3 41.Kd3 Bd4 42.Rh4 Rf6 43.Bd1 Rf4 44.Rh3 g5 45.Rh5 f6 46.Rh1 Rh4 47.Rf1 Kg6 48.Be2 f5 49.exf5+ Kxf5 50.Rb1 Kf4 51.a3 Rh3 52.Kd2 b6 53.b4 axb4 54.axb4 cxb4 55.Rxb4 e4 56.c5 bxc5 57.Rb7 exf3 0-1 (57) Kavri,Y (1339) -Yakar,O (1718) Konya 2017] 11...dxc5 12.g4 h5!? [12...Ne8 13.Bd3 Nd6 14.0-0-0 a4 15.a3 Bd7 16.Ne1 Rb8 17.Ng2 b5 18.cxb5 c4 19.Be2 Bxb5 20.Ne3 Bf6 21.Qc2 Bg5 22.Kb1 Qe7 23.Ka2 Bd7 24.Rhf1 Rb3 25.Rb1 Rfb8 26.Nxc4 Nxc4 27.Bxc4 Qc5 28.Bd3 Be7 29.Ka1 Qd4 30.Ka2 R8b6 31.Rfd1 Bxa3 32.bxa3 Rxc3 33.Qd2 Qc5 34.Rb4 Rxb4 35.axb4 Qxb4 36.Qb2 Rb3 37.Qc1 a3 38.Rd2 Ba4 39.Bf1 Rc3 40.Qb1 Bb3+ 41.Ka1 Qc5 0-1 (41) Jorgensen,A (2049)-Aabling Thomsen,J (2241) Copenhagen 2007] 13.g5 Ne8 14.Rg1 Nd6 15.Nh4 a4 16.Qe3 b6 17.Nb5 Bd7 18.Nxd6 cxd6 19.Be2 b5 20.Bxh5 Qa5+ 21.Kf1 Qb4 22.cxb5 Qd4 23.Rg3 a3 24.Qxd4 exd4 25.b3 Bxb5+ 26.Be2 Bxe2+ 0-1
(8) Askin,David (2053) - Maser,Thomas (1914) [E16]
Mechanics' Fall TNM: Championship San Francisco (4.11), 13.11.2019
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 a5 7.0-0 0-0 8.Bf4 Be7 9.Nc3 Ne4 10.Nxe4 Bxe4 11.Rc1 d6 12.Qd2 Nd7 13.Rfd1 Nf6 14.Bg5 a4 15.Qf4 Bb7 16.d5 h6 17.Bxf6 Bxf6 18.Qd2 Re8 19.Nd4 exd5 20.cxd5 Bxd4 21.Qxd4 Rxe2 22.Bf3 Re7 23.Rc3 Qd7 24.Rdc1 Rae8 25.Rxc7 Re1+ 26.Kg2 Qb5?!
(9) Lehman,Clarence (1900) - Davila,Carlos (2118) [B00]
Mechanics' Fall TNM: Championship San Francisco (4.12), 13.11.2019
1.e4 a6 2.d4 b5 3.Bd3 Bb7 4.Qe2 e6 5.Nf3 c5 6.c3 cxd4 7.cxd4 Nc6 8.a3 Rc8 9.0-0 Be7 10.b4 Nf6 11.Bb2 h5 12.Nbd2 h4 13.h3 d5 14.e5 Nh5 15.Qe3 g5 16.Nh2 Nf4 17.Ng4 Nb8 18.Rac1 Nd7 19.Nb3 Nb6 20.Na5 Ba8 21.Rxc8 Qxc8 22.Rc1 Qd7 23.Bf1 Nc4 24.Qc3 0-0 25.g3 hxg3 26.fxg3 Nh5 27.Kh2 f5 28.exf6 Nxf6 29.Nxf6+ Rxf6 30.Bg2 Bd6 31.Nxc4 bxc4 32.Qe3 Qf7 33.Rc2 Bc6 34.Re2 Qh5 35.Bc1 g4 36.Qg5+ Qxg5 37.Bxg5 Rg6 38.h4 Ba4-/+ 39.Rxe6? Rxg5?? [39...Rxe6 40.Bxd5 Kf7 41.Bxc4-+ was fun, but now it's all Black's fun.] 40.hxg5 c3 41.Rxd6 Kg7 42.Rxd5 1-0
(10) Askin,Michael (2000) - German,Felix (1859) [D07]
Mechanics' Fall TNM: Championship San Francisco (4.13), 13.11.2019
1.d4 d5 2.c4 Nc6 3.Nf3 Bg4 4.e3 e5 5.h3 Bxf3 6.Qxf3 exd4 7.cxd5 Bb4+ 8.Nd2 dxe3 9.fxe3 [9.Qxe3+ Nce7 10.Bb5+ Kf8 11.0-0+/-] 9...Ne5 10.Qe4 Qe7 11.Bb5+ Kf8 12.0-0 Nf6 13.d6 Qxd6 14.Qxb7 Rd8 15.Nc4 Nxc4 16.Bxc4 Bc5 17.Kh1 Qe5
(11) Busch,Jonah (1871) - Khristoforov,Sergey (1947) [B12]
Mechanics' Fall TNM: AB San Francisco (4.9), 13.11.2019
1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nc3 e6 5.g4 Bg6 6.Nge2 h6 7.h4 Bb4 8.h5 Be4 9.Rh3 Bh7 10.Nf4 Nd7 11.Bd3 Bxd3 12.Qxd3 Ne7 13.Bd2 a6 14.Nfe2 c5 15.f4 cxd4 16.Nxd4 Nc5 17.Qf3 Bxc3 18.Bxc3 Ne4 19.0-0-0 Rc8 20.Rg1 Nc6 21.Qg2 Nxd4 22.Bxd4 Rc4 23.c3 Qc7 24.Kb1 Ke7 25.g5 Rc8 26.g6 f5 27.exf6+ Nxf6 28.Re1 Rxd4 29.cxd4 Qxf4 30.Qe2 Rc6 31.Rc3 Qf5+ 32.Ka1 Qxh5 33.Rxc6 Qxe2 34.Rc7+ Kd6 35.Rxe2 Kxc7 36.Rxe6 Ng8 37.Re8 Nf6 38.Rf8 1-0
(12) Raza,Aezed (1607) - Mercado,Adam (1699) [E92]
Mechanics' Fall TNM: AB San Francisco (4.14), 13.11.2019
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 0-0 6.Be2 e5 7.dxe5 Less full-blooded than [7.0-0 (the Main Line); 7.d5 (the Petrosian System); 7.Be3 (Gligoric's line)] 7...dxe5 8.Qxd8 Rxd8 9.Nd5 [9.Bg5 has much more kick to it, or nudge.] 9...Nxd5 10.cxd5 c6 11.Bc4 cxd5 [11...b5 again, is the sharper line, advocated by Kotronias in the Grandmaster Repertoire series on the King's Indian.] 12.Bxd5 h6!? [12...Na6!?; 12...Nd7!?] 13.Be3 Nd7 [13...Nc6] 14.0-0-0 Re8 15.Rd2N [15.Bb3] 15...Nf6 16.Rhd1 Nxd5 17.Rxd5 [17.exd5 Bf5 targets the White king, e.g. 18.b3 a5] 17...Be6 18.Ra5 b6 19.Ra4 f5-/+ [19...Rac8+ 20.Kb1 Re7] 20.Nh4
(13) Lin,Aung (1642) - Uzzaman,Ashik (1935) [A04]
Mechanics' Fall TNM: AB San Francisco (4.15), 13.11.2019
1.Nf3 e6 2.b3 f5 3.Bb2 Nf6 4.e3 Be7 5.Bc4 0-0 6.0-0 a6 7.a4 Kh8 8.Ne5 d6 9.Nf3 c5 10.Ng5 d5 11.Be2 Nc6 12.f4 Rb8 13.Bh5 Nxh5 14.Qxh5 Bxg5 15.fxg5 d4 16.Rf3 Qe8 17.Qh4 e5 18.d3 Be6 19.Nd2 Nb4 20.Nc4 Bxc4 21.dxc4 Nxc2 22.Rh3 Qg6 23.Rf1 Nxe3 24.Re1 f4 25.Bc1 Rf5 26.Bxe3 fxe3 27.Rg3 Rbf8 28.h3 Rf4 29.Rg4 Qc2 30.Kh2 Rxg4 31.Qxg4 Qf2 32.Qd1 Qf4+ 33.Kh1 Qxg5 34.Qd3 Qf5 35.Qb1 a5 36.Qd1 b6 37.Rg1 Qf2 38.Re1 e4 39.Kh2 d3 40.Rg1 e2 41.Qc1 e3 42.Qc3 d2 43.Qd3 e1Q 0-1
(14) Argo,Guy (1859) - Boldi,Nicholas (1653) [A23]
Mechanics' Fall TNM: AB San Francisco (4.16), 13.11.2019
1.c4 e5 2.Nc3 Nf6 3.g3 c6 4.d4 exd4 5.Qxd4 d6 6.Bf4 Be7 7.0-0-0 Be6 8.e4 0-0 9.Bxd6 Nbd7 10.e5 Ne8 11.Bh3 c5 12.Qe4 Bxd6 13.exd6 Nef6 14.Qe2 Re8 15.Bxe6 Rxe6 16.Qd2 a6 17.Nh3 Ne8 18.Rhe1 Rh6 19.Ng5 Nxd6 20.Nce4 Nxc4 21.Qxd7 Qxd7 22.Rxd7 Ne5 23.Rdd1 c4 24.Kb1 Rxh2 25.Rh1 Rxh1 26.Rxh1 h6 27.Nh3 b6 28.Rd1 Nd3 29.f4 b5 30.Nhf2 Nxf2 31.Nxf2 Kf8 32.Kc2 Ke7 33.Kc3 Ra7 34.Rd5 Ke6 35.Re5+ Kd6 36.a4 Kc6 37.axb5+ axb5 38.Ne4 Ra4 39.Re7 Kd5 40.Nd2 b4+ 41.Kc2 1-0
(15) Mays,Jerry (1700) - Babayan,Gagik (1790) [C05]
Mechanics' Fall TNM: AB San Francisco (4.17), 13.11.2019
1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Ngf3 c5 6.c3 cxd4 7.cxd4 Nc6 8.Be2 Qb6 9.Nb3 a5 10.a4 Bb4+ 11.Bd2 Bxd2+ 12.Kxd2 Qb4+ 13.Kc2 f6 14.Bb5 fxe5 15.Qe1 Qxe1 16.Rhxe1 Nb4+ 17.Kd2 e4 18.Ne5 Ke7
(16) Perlov,Alexander (1770) - Latourette,Nick (1583) [D30]
Mechanics' Fall TNM: AB San Francisco (4.18), 13.11.2019
1.d4 d5 2.c4 e6 3.g3 h6 4.Nf3 Nf6 5.Bg2 Bb4+ 6.Bd2 Bxd2+ 7.Qxd2 0-0 8.Nc3 Nc6 9.0-0 Ne4 10.Qc2 f5 11.e3 a5 12.a3 Ne7 13.Ne5 c6 14.Rfd1 Qe8 15.b4 Ng6 16.f4 Nxe5 17.dxe5 Qe7 18.cxd5 exd5 19.Nxe4 fxe4 20.b5 Bg4 21.Rd2 Qe6 22.bxc6 bxc6 23.Rc1 Rfc8 24.Qc5 Qf7 25.Rb1 Qf8 26.Qxf8+ Kxf8 27.h3 Be6 28.Rb6 Ra7 29.Rc2 Bd7 30.Rc5 Ke7 31.Kf2 Rcc7 32.Rc2 Rcb7 33.Rcb2 Bc8 34.g4 g6 35.Ke2 Kd8 36.Rxb7 Rxb7 37.Rxb7 Bxb7 38.Kd2 Bc8 39.Kc3 c5 40.Bf1 Bd7 41.Ba6 Kc7 42.Be2 Kb6 43.h4 Kc7 44.h5 gxh5 45.f5 h4 46.Bf1 Kd8 47.Bh3 Bb5 48.Bg2 Be2 49.Bh3 Bf3 50.f6 Be2 51.e6 1/2-1/2
(17) Reyes,Victor Hugo (1497) - Babb,Kevin (1803) [B12]
Mechanics' Fall TNM: AB San Francisco (4.19), 13.11.2019
1.e4 c6 2.f4 d5 3.e5 Bf5 4.d4 e6 5.Nf3 c5 6.c3 Nc6 7.Bb5 Nge7 8.0-0 a6 9.Bd3 cxd4 10.cxd4 Bxd3 11.Qxd3 Qb6 12.a3 Nf5 13.Rd1 Be7 14.b4 0-0 15.Kh1 Rfc8 16.Nc3 Rc7
(18) Rakonitz,David (1639) - Zeller,William (1776) [D13]
Mechanics' Fall TNM: AB San Francisco (4.20), 13.11.2019
1.d4 Nf6 2.Nf3 d5 3.c4 c6 4.Nc3 Bf5 5.cxd5 cxd5 6.Qb3 e6 7.Qxb7 Nbd7 8.Bf4 Be7 9.e3 0-0 10.Bc7 Qc8 11.Ba6 Qxb7 12.Bxb7 Rae8 13.0-0 Nb6 14.Ne5 Nc4 15.Nxc4 dxc4 16.Rac1 Bb4 17.Ba6 Bxc3 18.Rxc3 Bd3 19.Re1 Nd5 20.Rxd3 cxd3 21.Bd6 d2 22.Rd1 Rc8 23.Rxd2 Rc1+ 24.Bf1 Rfc8 25.g3 Ra1 26.Kg2 Rcc1 27.Bd3 f5 28.a3 a5 29.Bc5 g5 30.Rc2 Rh1 31.e4 g4 0-1
(19) Hack,Richard (1601) - Kaplan,Glenn (1668) [E65]
Mechanics' Fall TNM: AB San Francisco (4.21), 13.11.2019
1.c4 Nf6 2.g3 d6 3.Bg2 g6 4.Nc3 Bg7 5.Nf3 0-0 6.0-0 c5 7.d4 Nbd7 8.d5 Nb6 9.Qd3 Bg4 10.h3 Bxf3 11.Bxf3 Nfd7 12.b3 Ne5 13.Qe3 Nxf3+ 14.Qxf3 Nd7 15.Bb2 a6 16.Na4 Ne5 17.Qe4 b5 18.Nxc5?! Nf3+? [18...Qc8! 19.Bxe5 (19.Nd3? Nxd3 20.Bxg7 Nc5! 21.Qd4 e5!-+) 19...Bxe5 20.Nd3 Bxa1 21.Rxa1 bxc4 22.bxc4 Re8-/+] 19.Qxf3 [19.exf3!] 19...Bxb2 20.Rab1 Bg7 21.Ne4 [21.Nd3+/=] 21...bxc4 [21...Qa5 22.b4 Qxa2 23.c5] 22.bxc4 Qc8?! [22...Rb8] 23.Rfc1 Qxh3 24.c5 [24.Rb7!] 24...dxc5 25.Rxc5 Rfc8 26.Rc6 Rxc6 27.dxc6 Rc8 28.Nc5 [28.Rb6!?] 28...a5?! 29.Rb7 Qf5? 30.Qxf5 gxf5 31.Ra7? [31.Nd7 Rxc6 32.Rb8+ Bf8 33.Rxf8+ Kg7 34.Rxf7+!] 31...Bc3? [31...Bd4=] 32.c7?! [32.Ra6 Kg7 33.e3 Bb4+/-] 32...Be5 33.Rxa5 Rxc7 [33...Bxc7!=] 34.Nd3 Bf6 35.a4 e6 36.Ra8+ Kg7 37.e3 e5 38.Nb4 Rc1+ 39.Kg2 e4 40.Nd5 Bb2 41.a5 Rd1 42.Nb6 Ra1 43.a6 Ba3 44.Nd7 Bb2 45.a7 Ra2 46.Nb8 Bc1 47.Nc6 Bxe3 48.Nb4 Rxa7 49.Re8 Bc5 50.Rb8 Bxb4 51.Rxb4 Kg6 52.Kh3 Ra2 53.Kg2 e3 54.Kf3 exf2 55.Rb1 Kg5 56.Rf1 h5 57.Rxf2 Rxf2+ 58.Kxf2 f4 59.gxf4+ Kxf4 60.Kg2 Kg5 61.Kg3 f6 62.Kf3 h4 63.Kg2 f5 64.Kh2 f4 65.Kg2 Kg4 66.Kg1 Kf3 67.Kh2 Ke2 0-1
(20) Fabiani,Lino (1850) - Cortinas,Marty (1697) [B33]
Mechanics' Fall TNM: AB San Francisco (4.22), 13.11.2019
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Nd5 Be7 10.Bxf6 Bxf6 11.c3 0-0 12.Nc2 Bg5 13.h4 [Far more popular (and ultimately more successful) has been pushing the other rook pawn: 13.a4; Other stable moves are 13.Be2; and 13.Nce3] 13...Be7?! A criminal giving in! The bishop is now just rust and in the way. [13...Bh6! 14.g4 (14.g3; 14.Be2) 14...Bf4!? (14...g6; 14...f6) 15.Qf3 White wins a pawn at the cost of giving Black a lot of squares.; 13...Bf4 14.g3 Bh6 15.g4 Bf4! is the same] 14.a4 [14.Nce3] 14...Rb8 [14...bxa4 15.Rxa4 a5 was three draws.] 15.axb5 axb5 Whereas here we've transposed into three games that White has won. 16.Bd3 f5 17.Qe2 fxe4 18.Bxb5
(21) Bielec,John (1790) - Chea,Na (1601) [D06]
Mechanics' Fall TNM: Extra San Francisco (4.23), 13.11.2019
1.d4 d5 2.c4 Nf6?! [2...e6; 2...c6; 2...dxc4; 2...Nc6; 2...e5] 3.cxd5 Nxd5 4.e4 Nf6 5.Nc3 e5 6.Nf3 exd4 7.Nxd4 Bc5 8.Be3 Ng4?
(22) Acharya,Venkatagiri (1609) - Xu,Jayden (1774) [C06]
Mechanics' Fall TNM: AB San Francisco (4.24), 13.11.2019
1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6 7.Ne2 cxd4 8.cxd4 f6 9.exf6 Nxf6 10.0-0 Bd6 11.Nf3 Qc7 12.Bg5 0-0 13.Rc1 Bd7 14.a3 Be8
(23) Baer,Michael (1430) - Agdamag,Samuel (1465) [A45]
Mechanics' Fall TNM: AB San Francisco (4.25), 13.11.2019
1.d4 Nf6 2.Nc3 d6 3.Bf4 Bf5 4.f3 Nbd7 5.g4! e5!?
(24) Gimelfarb,Ilia - Starr,Albert (1517) [C42]
Mechanics' Fall TNM: U1600 San Francisco (4.10), 13.11.2019
1.e4 e5 2.Nf3 Nf6 3.Nc3 Bb4 4.d3 d5 5.exd5 Nxd5 6.Bd2 0-0 7.Nxd5 Bxd2+ 8.Qxd2 Qxd5 9.Be2 Nc6 10.0-0 h6 11.Rfe1 Bg4 12.h3 Bh5 13.Nh2 Bxe2 14.Rxe2 f5 15.Nf3 Rae8 16.c4 Qd6 17.a3 Nd4 18.Nxd4 exd4 19.Rae1 Rxe2 20.Qxe2 c5 21.Qe6+ Qxe6 22.Rxe6 Kf7 23.Re5 b6 24.Rxf5+ Ke7 25.Rxf8 Kxf8 26.f4 g6 27.Kf2 Ke7 28.Kf3 h5 29.g4 Ke6 30.Ke4 h4 31.f5+ gxf5+ 32.gxf5+ Kf6 33.Kf4 a6 34.a4 Kg7 35.Kg5 Kf7 36.Kxh4 Kf6 37.Kg4 Kg7 38.Kg5 Kf7 39.f6 b5 40.axb5 axb5 41.b3 bxc4 42.bxc4 Kg8 43.h4 Kf7 44.Kf5 Kg8 45.Ke4 1-0
(25) Mani,Venugopal (1598) - Martin,Michael (1480) [A29]
Mechanics' Fall TNM: U1600 San Francisco (4.26), 13.11.2019
1.Nf3 Nc6 2.c4 e5 3.Nc3 Nf6 4.g3 The top players have tired of this; [4.e3; 4.e4] 4...b6?! 5.Bg2 Bd6! Novel! But suspect. 6.0-0 0-0 7.Nb5 Qe7 8.Nxd6 Qxd6 9.d4 exd4 10.Bf4 Qc5 11.Nxd4 Ba6 12.Nb3 [12.Nxc6 dxc6 13.b3] 12...Qxc4 13.Re1 Rac8 14.Rc1 Qe6 15.Nd4 Nxd4 16.Qxd4 c5 17.Qa4 b5 18.Qa5 d5 19.a4 Qb6 20.Qd2 Rfd8 21.axb5 Bxb5 22.Bg5 d4 23.Qc2 c4 24.Qf5 Re8 25.Bxf6 Qxf6?? 26.Qxb5 a6 27.Qb4 Qe6 28.Qa5 Rb8 29.Bd5 Qe5 30.e4 d3 31.Rxc4 Rxb2 32.Qc3 Qxc3 33.Rxc3 d2 34.Rd1 Reb8 35.Kf1 a5 36.Ke2 a4 37.Ra3 1-0
(26) Chan,John (1507) - Ford,Andy Vincent [A80]
Mechanics' Fall TNM: U1600 San Francisco (4.27), 13.11.2019
1.d4 f5 2.Nf3 Nf6 3.d5 d6 4.h3 c6 5.dxc6 bxc6 6.c3 e5 7.Bg5 Nbd7 8.e3 Be7 9.Qc2 e4 10.Nd4 Ne5 11.Be2 0-0 12.Nd2 c5 13.N4b3 Nd5 14.Bxe7 Qxe7 15.g3 Be6 16.a3 Nb6 17.Na5 Qc7 18.Nab3 Nbc4 19.Nxc4 Bxc4 20.Bxc4+ Nxc4 21.Qe2 Ne5 22.Kf1 Rab8 23.Nc1 Qb6 24.b3 Qa5 25.Qd2 Rf6 26.Kg2 Qd8 27.Qd5+ Kh8 28.Ne2 Qg8 29.Qxg8+ Kxg8 30.Rab1 g5 31.Rhd1 a5 32.a4 Rbf8 33.Rd5 Ng6 34.Rbd1 f4 35.exf4 gxf4 36.Kg1 fxg3 37.fxg3 Rf2 38.Re1 R8f6 39.Rg5 R6f3 40.Rg4 d5 41.Nf4 Rd2 42.Rg5 Rxc3 43.Nxd5 Rxb3 44.Nf6+ Kg7 45.Nxe4 Rdd3 46.Nxc5 Rxg3+ 47.Rxg3 Rxg3+ 48.Kh2 Rc3 49.Nb7 Nf4 50.Nxa5 Rxh3+ 51.Kg1 Ra3 52.Re4 Nd5 53.Nc6 Nc3 54.Rg4+ Kf6 55.a5 h5 56.Rc4 Kg5 57.Rc5+ Kg4 58.Ne5+ Kg3 0-1
(27) Uzakbaev,Nursultan - Thibault,William (1195) [B12]
Mechanics' Fall TNM: U1600 San Francisco (4.28), 13.11.2019
1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nf3 e6 5.Bd3 Bxd3 6.Qxd3 Nd7 7.0-0 c5 8.c3 Ne7 9.Bg5 Qb6 10.b3 Nf5 11.g4 Ne7 12.Nbd2 h6 13.Bh4 Ng6 14.Bg3 Be7 15.h4 0-0 16.h5 Nh8 17.Kg2 f5 18.gxf5 Rxf5 19.Rh1 Raf8 20.Rag1 Qd8 21.Nh4 Rxh5 22.Ng6 Rff5 23.Rxh5 Rxh5 24.Nf4 Rf5 25.Nxe6 Nxe5 26.Qxf5 1-0
(28) Hansen,Mateo (1583) - Roberts,Joseph (1369) [C51]
Mechanics' Fall TNM: U1600 San Francisco (4.29), 13.11.2019
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Be7 6.d4 Na5 7.Bxf7+ Kxf7 8.Nxe5+ Kf8 9.Qh5 Qe8 10.Qf3+ Nf6
(29) Neygut,Eitan (993) - Hilliard,Michael (1429) [A13]
Mechanics' Fall TNM: U1600 San Francisco (4.30), 13.11.2019
1.c4 e6 2.Nc3 Bc5? 3.d4 Bb4 4.Nf3 a5 5.e4 c6 6.Bd3 d5 7.cxd5 cxd5 8.exd5 Qxd5 9.0-0 Bxc3 10.bxc3 Nf6 11.Ba3 a4 12.c4 Qh5 13.Re1 Bd7 14.Qb1 Bc6 15.d5 Nxd5 16.cxd5 Qxd5 17.Qb4 Qd7 18.Ne5 Qc7 19.Rac1 Ra7 20.Bb5 g6 21.Nxc6 bxc6 22.Bxc6+ Nxc6
(30) Simpkins,Jerry (1426) - Frank,Robert (1224) [C57]
Mechanics' Fall TNM: U1600 San Francisco (4.31), 13.11.2019
1.e4 e5 2.Nf3 Nf6 3.Bc4 Nc6 4.Ng5 d5 5.exd5 Nxd5 6.Nxf7 The Fried Liver Attack is becoming popular in our club! 6...Kxf7 7.Qf3+ Ke6 8.Nc3 Nce7 9.d4! c6 10.0-0 [10.Bg5! intending 0-0-0 is a very old game...] 10...b5 11.Bb3 Ng6 12.Ne4? [12.Rd1! focusing on d5] 12...h6 13.Qh5 Ngf4 14.Bxf4 exf4 15.Qe5+ Kf7 16.Qxf4+ Kg6 17.Qg3+ Kh7 18.f4 Be7 19.f5 Rg8? [19...Rf8! is good for Black.] 20.Qg6+ Kh8 21.Qxc6 Bb7? [21...Nb6 even hanging the exchange.] 22.Qxb7 Rb8 23.Qxd5 Qxd5 24.Bxd5 Rgd8 25.Be6 Rxd4 26.f6 Bxf6 27.Nxf6 Rd6 28.Nd7 Re8 29.Rf8+ Rxf8 30.Nxf8 g5 31.Rf1 1-0
(31) Jade,Valerie - Olson,David (1407) [C01]
Mechanics' Fall TNM: U1600 San Francisco (4.32), 13.11.2019
1.e4 e6 2.d4 Bb4+ 3.Bd2 Nc6 4.d5 Bxd2+ 5.Nxd2 Ne5 6.f4 Ng6 7.g3 Nf6 8.dxe6 dxe6 9.Qf3 c6 10.0-0-0 Qa5 11.Kb1 b5 12.e5 Nd5 13.c4 Nde7 14.cxb5 Bb7 15.Nc4 Qc7 16.Nd6+ Kf8 17.Nxb7 Qxb7 18.bxc6 Qc7 19.Bg2 Nd5 20.Qa3+ Kg8 21.Qd6 Qb6 22.c7 Nc3+ 23.Ka1 Nxd1 24.Qxb6 axb6 25.Bxa8 1-0
(32) Allen,Tom (1400) - Ahrens,Richard (1206) [C62]
Mechanics' Fall TNM: U1600 San Francisco (4.33), 13.11.2019
1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Qxd4 Nc6 5.Bb5 Bd7 6.Bxc6 Bxc6 7.Nc3 Qe7? [7...Nf6 followed by ...Be7 and ...0-0 is standard, when White often castles queenside.] 8.0-0 0-0-0?! A surprising mutual castling on the "wrong" side surprise, marred further by... 9.Qxa7 ... and White is just winning. 9...Nh6 10.Qd4 Qf6 11.Bg5 Qxd4 12.Nxd4 Re8 13.Bxh6 gxh6 14.Rfe1 Rg8 15.Nxc6 bxc6 16.a4 Re5 17.a5 Reg5 18.g3 Kb7 19.a6+ Ka7 20.Re3 Bg7 21.Rd3 Ra8 22.Ra2 h5 23.f4 Rc5 24.e5 d5 25.b4 Rc4 26.Na4 Rxb4 27.Nc5 Bf8 28.Nb7 Rb6 29.Rb3 Rxb3 30.cxb3 Kb6 31.Kf2 Be7 32.f5 Rxa6 33.Rxa6+ Kxa6 34.f6 Bf8 35.Nd8 c5 36.Nxf7 Kb6 37.e6 Kc6 38.Ke3 c4 39.bxc4 dxc4 40.Kd4 Bh6 41.Nxh6 1-0
(33) Harris,Clarence (1464) - Cheng,Andrew (1400) [C50]
Mechanics' Fall TNM: U1600 San Francisco (4.34), 13.11.2019
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bc4 h6 5.d3 Bc5 6.0-0 0-0 7.Nd5 Re8 8.c3 Na5 9.b4 Nxc4 10.dxc4 Bf8 11.Re1 c6 12.Nxf6+ Qxf6 13.Be3 d6 14.Nd2 b6 15.Qf3 Qxf3 16.Nxf3 Bb7 17.Nd2 Rad8 1/2-1/2
(34) Cole,Tony (1425) - Sachs-Weintraub,Julian (1447) [B30]
Mechanics' Fall TNM: U1600 San Francisco (4.35), 13.11.2019
1.e4 c5 2.Nc3 Nc6 3.Nf3 e5 4.Bc4 a6 5.a3 b5 6.Bd5 Nf6 7.Bxc6 dxc6 8.Nxe5 Qd4 9.Nxc6 Qd6 10.Na5 Qb6 11.b4 cxb4 12.axb4 Bxb4 13.Nb3 Bxc3 14.dxc3 0-0 15.Be3 Qc6 16.0-0 Nxe4 17.Qf3 Bb7 18.Na5 Qc8 19.Rfe1 Nd6 20.Qg3 Nf5 21.Qf4 Nxe3 22.Rxe3 Rb8 23.Rae1 Qd8 24.Nb3 Qd5 25.f3 Bc6 26.Nd4 a5 27.Nf5 Qc5 28.Kh1 Bd7 29.Nd6 Rb6 30.Ne4 Qh5 31.Ng3 Qg6 32.Qc7 Qc6 33.Qf4 a4 34.Qb4 Qc4 35.Qe7 Bc8??
(35) Parekh,Raj (1211) - Yamamoto,Craig (1500) [B56]
Mechanics' Fall TNM: U1600 San Francisco (4.36), 13.11.2019
1.e4 c5 2.Nf3 d6 3.Nc3 Nc6 4.Bb5 Bd7 5.d4 cxd4 6.Nxd4 Nf6 7.Nf3 g6 8.Bg5 Bg7 9.0-0 0-0 10.Bxf6 Bxf6 11.Nd5 Bg7 12.c3 a6 13.Ba4 Na5 14.Bxd7 Qxd7 15.Nb6 Qb5 16.Nxa8 Rxa8 17.a4 Qxb2 18.Qd5 Bxc3 19.Ng5 Rf8 20.Rac1 Qb4 21.e5 Bxe5 22.Rc8
(36) James,Charles (1480) - Bayaraa,Timothy (1084) [D06]
Mechanics' Fall TNM: U1600 San Francisco (4.37), 13.11.2019
1.d4 d5 2.c4 Nf6? 3.cxd5 Qxd5 4.Nc3 Qa5 5.Bd2 Qb6 6.e3 c5 7.Na4 Qc6 8.Nxc5 b6 9.Nb3 Nbd7 10.Rc1 Qb7 11.Nf3 Ne4 12.Bb5 e6 13.Bc6 Qb8 14.Bxe4 Bb7 15.Bxb7 Qxb7 16.0-0 Be7 17.Qc2 0-0 18.Qc7 Qd5 19.Qc6 Nf6 20.Qxd5 exd5 21.Ne5 Ne4 22.f3 Nxd2 23.Nxd2 Bb4 24.Nb1 f6 25.Nc6 Bd6 26.Nc3 h6 27.Nxd5 Rac8 28.Nce7+ Bxe7 29.Nxe7+ Kf7 30.Nxc8 Re8 31.Nd6+ 1-0
(37) Radaelli,Lucas (1444) - Serra,Owen (1036) [D35]
Mechanics' Fall TNM: U1600 San Francisco (4.38), 13.11.2019
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 0-0 7.Bd3 Nc6 8.a3 h6 9.Bh4 Ne4 10.Bxe7 Qxe7 11.Nxd5 Qh4 12.g3 Nxf2 13.gxh4 Nxd1 14.Rxd1 Bg4 15.Be2 f5 16.h3 Bxe2 17.Nxe2 Rae8 18.Kd2 Rf7 19.Rhg1 Na5 20.Rg3 c6 21.Ndf4 Nc4+ 22.Kc3 Nxe3 23.Rdg1 Nd5+ 24.Nxd5 cxd5 25.Nf4 Re4 26.Nxd5 Rxh4 27.Rf1 f4 28.Rgf3 g5 29.Kd3 h5 30.Rg1 Rg7 31.Ke4 Kh7 32.Kf5 Kh6 33.Nc3 g4 34.hxg4 hxg4 35.Rxf4 g3 36.Rxh4# 1-0
(38) Krezanoski,Paul - Sztaray,Judit (860) [E33]
Mechanics' Fall TNM: Extra San Francisco (4.39), 13.11.2019
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Bb4 5.Qc2 Nc6 6.a3 Ba5 7.b4 Bb6 8.c5 Bxc5 9.bxc5 0-0 10.Bf4 Ne4 11.Nxe4 dxe4 12.Qxe4 Na5 13.e3 c6 14.Ng5 g6 15.Nf3 Nb3 16.Rb1 Qa5+ 17.Kd1 Qxa3 18.Qd3 Rd8 19.Qxb3 Qa5 20.Nd2 f6 21.Nc4 Qb5 22.Nd6 Qxb3+ 23.Rxb3 Rb8 24.Bc4 b6 25.Nxc8 Rdxc8 26.Bxe6+ Kf8 27.Bxc8 Rxc8 28.cxb6 axb6 29.Rxb6 f5 30.Kd2 c5 31.dxc5 Rxc5 32.Bd6+ 1-0
(39) Sullivan,George (841) - Rushton,Peter (1237) [D07]
Mechanics' Fall TNM: U1600 San Francisco (4.40), 13.11.2019
1.d4 d5 2.c4 Nf6? 3.Nc3 [3.cxd5] 3...Nc6 4.Nf3 Bg4 5.e3 e5 6.dxe5 Nxe5 7.Be2 Bd6 8.cxd5 0-0 9.a3 a6 10.h3 Bc8 11.b3 b5 12.b4 Nxf3+ 13.Bxf3 Bb7 14.0-0 Be5 15.Bb2 a5 16.Qb3 a4 17.Qa2 Qd7 18.e4 c6 19.dxc6 Bxc6 20.Rad1 Qb7 21.Qb1 Rad8 22.Rxd8 Rxd8 23.Re1 Rd6 24.Nxb5? [24.Nxa4!] 24...Qxb5 25.Bxe5?? [25.Be2! Qb6 26.Bxe5 Nxe4 27.Bf3 Nd2 28.Qc2!? Nxf3+ (28...Bxf3?? 29.Bxd6+- (29.gxf3?? Nxf3+-+) ) 29.gxf3=] 25...Qxe5 26.Qc2 h6-+ 27.Qc4 g5 28.g4 Qf4 29.Re3 Nd7 30.Qe2 Ne5 31.Bg2 Bb7 32.Qc2 Rc6 33.Qd1 Qf6 34.Qxa4 Rc1+ 35.Kh2 [35.Bf1 Nf3+ 36.Kg2 Nd2 37.Bd3 Qa1!] 35...Qd6 [35...Qf4+ 36.Rg3 Qxf2; 35...Qxf2] 36.Rg3 h5 37.gxh5 f6 38.h6 Kh7 39.h4 Ng4+ 40.Kh3 Nxf2+ 41.Kh2 gxh4 0-1
(40) Badgett,James (1084) - Li,Katherine (703) [C55]
Mechanics' Fall TNM: U1600 San Francisco (4.41), 13.11.2019
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 g6?! 5.Ng5! d5 6.Bb3? [6.exd5! when all the usual Two Knights Defense stuff turns out fairly horribly. 6...Nxd5 7.Qf3 (or even 7.Nc3 Bb4 8.Qf3 Be6 9.0-0 gets complicated but favors White.) 7...Be6 8.Nxe6 fxe6 9.0-0 is painful for Black.] 6...Bg7 [6...Nd4! 7.0-0 Bg7] 7.Nc3 h6
(41) Dubensky,Walt (1078) - North,Jeff James [D00]
Mechanics' Fall TNM: U1600 San Francisco (4.42), 13.11.2019
1.d4 d5 2.Nc3 Nf6 3.Nf3 Bd7 4.e3 e6 5.a3 c5 6.dxc5 Nc6? 7.b4 b6 8.b5 Na5 9.c6 Bc8 10.Bb2 Bd6 11.Bd3 Qc7 12.0-0 e5 13.e4 dxe4 14.Bxe4 Nc4 15.Rb1 Bg4 16.Qd3 Nxa3 17.Bxa3 Rd8 18.Bxd6 Rxd6 19.Nd5 Nxd5 20.Bxd5 0-0 21.Nxe5 Be6 22.c4 Re8 23.f4 Qc8 24.f5 Bxd5 25.Rbe1 Bxg2 26.Qxd6 Bxf1 27.Rxf1 f6
(42) Sun,Kevin (1100) - Gimelfarb,Natan (1118) [C56]
Mechanics' Fall TNM: U1600 San Francisco (4.44), 13.11.2019
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.e5 Ng4!? [5...d5 has almost completely taken over theoreticians' interest -- which is perhaps why Carlsen has popped 5...Ng4 a couple times (separated by nine years!). Or maybe it's just the best move?] 6.Nxd4? Actually pretty bad. [6.0-0!? d6 (6...Be7 7.Re1 d6 8.exd6 cxd6 9.Nxd4 0-0) 7.exd6 Bxd6; 6.Qe2 Qe7 7.Bf4 is Sveshnikov's pet plan here.] 6...Ncxe5 Rarely played but the computer loves it. 7.h3?!
22.Rxa7?? Rxa7 23.Qxa7 Qc1+ Lights out. 24.Kh2 Qxb2 25.Qxc7 Bb7 26.Kg3 Bxf3 27.Kxf3 Re8 28.Qd7 Qf6+ 29.Kg3 Re3+ 30.Kh2 Qf4+ 31.g3 Qf2+ 32.Kh1 Re1# 0-1
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