Chess Room Newsletter #978 | Mechanics' Institute

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Chess Room Newsletter #978

Gens Una Sumus!

Newsletter #978

July 24, 2021


Table of Contents

Charles Bagby Memorial Tournament Report

by Abel Talamantez

The 20th Charles Bagby Memorial had a full house of chess enthusiasts with 77 players participating in this one-day G/45;d5 USCF rated event. This tournament is held in honor of former Mechanics' Institute Trustee and Chair of the Chess Committee at the Mechanics' Institute. Here is an obituary from the California Chess Reporter, courtesy of Chess Dryad.

Split into two sections, the 1800+ was a wide open field, especially after top seed IM Elliott Winslow was upset in round 1 by Mikhail Molodyk. After three rounds, Nicholas Weng was in position to take clear first as the only player with 3/3 after a terrific win against Evan Ai. However, NM Siddharth Arun held on to a draw against Weng in round 4 to create a 3-way tie for 1st place between Matthew Ng and Luiz Uribe, who all finished 3.5/4. 

Nicholas Weng (left) and Evan Ai square off in round 3

In the under 1800 section, recent UC Berkeley grad Adam Stafford continues his sharp rise with another tournament win, sharing first place with Daniil Kardava with a perfect 4/4. Stafford won his section at the recent Addison Memorial as well. We had 44 players in this section, and it was exciting to see many new faces jumping into live tournament play. 

Adam Stafford (white) continues his fine play in the u/1800 section with another cash finish

It was a great day at the Mechanics' Institute, as the excitement and energy were definitely in the room for live chess. There were many talented young players participating, some of whom will be the next generation of Bay Area stars. We also had many new players, and our always faithful Mechanics' Institute regulars. I would like to thank my two volunteer TD's, Chief TD WCM Allyson Wong and Michael Hsu, for helping me keep an eye on the games and making sure everything ran smoothly. I would also like to thank Allyson's mom Alice Lu for the irresitable (too much so) doughnuts.

Here are the final standings for the 20th Charles Bagby Memorial

SwissSys Standings. 20th Bagby Memorial Championship: 1800+

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Total Prize
1 Nicholas Weng 15499404 2013 W32 W27 W5 D4 3.5 274.42
2 Matthew Ng 11440339 2000 W21 W17 D10 W15 3.5 274.42
3 Luiz Uribe 12839860 1856 D4 W9 W14 W10 3.5 274.42
4 Siddharth Arun 13206647 2253 D3 W26 W6 D1 3.0  
5 Evan Ai 14780703 2058 W28 W12 L1 W17 3.0  
6 Jacob Chiang 16093205 1998 X14 W13 L4 W16 3.0  
7 Rithwik Narendra 14903560 1849 D9 W23 D11 W22 3.0  
8 Abhishek Mallela 12888811 2159 L27 W32 W19 D12 2.5  
9 Austin Mei 16090452 2149 D7 L3 W24 W25 2.5  
10 Laimonas Turauskas 30228235 2126 W19 W18 D2 L3 2.5  
11 Pranav Senthilkumar 14020007 2046 W20 D25 D7 D13 2.5  
12 Ako Heidari 15206848 1964 W33 L5 W29 D8 2.5  
13 Ranen Lardent 12614986 1803 W22 L6 W18 D11 2.5  
14 Glenn Kaplan 12680193 1776 H--- W31 L3 W23 2.5  
15 Aiden Liu 16850092 1715 D23 W24 W25 L2 2.5  
16 Elliott Winslow 10363365 2278 L25 W20 W27 L6 2.0  
17 Advay Bansal 16068511 1949 W29 L2 W30 L5 2.0  
18 Rohan Rajaram 15739716 1933 W30 L10 L13 W26 2.0  
19 Andrew Ng 14302931 1844 L10 W33 L8 W29 2.0  
20 Tony Zhou 16147444 1816 L11 L16 W33 W30 2.0  
21 Jacob Wang 17083655 1782 L2 L22 W28 W27 2.0  
22 Atul Thirumalai 14973786 2043 L13 W21 D26 L7 1.5  
23 Daniel Lin 15176393 1983 D15 L7 W31 L14 1.5  
24 Ethan Guo 16761994 1953 D31 L15 L9 W33 1.5  
25 Mikhail Molodyk 13573825 1877 W16 D11 L15 L9 1.5  
26 Dylan Tang 16551237 1619 B--- L4 D22 L18 1.5  
27 Patrick Liu 16667410 1851 W8 L1 L16 L21 1.0  
28 Max Hao 16083648 1842 L5 L29 L21 W31 1.0  
29 Vian Yang 15804394 1620 L17 W28 L12 L19 1.0  
30 Leon Quin 30191497 1611 L18 B--- L17 L20 1.0  
31 Vikrant Ganesan 16786952 1628 D24 L14 L23 L28 0.5  
32 James Mahooti 12621393 1800 L1 L8 U--- U--- 0.0  
33 Jeff Andersen 11296106 1643 L12 L19 L20 L24 0.0  

SwissSys Standings. 20th Bagby Memorial Championship: under1800

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Total Prize
1 Adam Stafford 14257838 1473 W35 W17 W21 W4 4.0 198.88
2 Daniil Kardava 15961344 1380 W44 W7 W23 W5 4.0 198.88
3 Wentao Wu 16629782 1472 W24 D11 W29 W13 3.5 111.00
4 Frederick Hope 12646004 1646 W19 W15 W16 L1 3.0  
5 Zachary Filler 14040236 1609 W20 W10 W18 L2 3.0  
6 Luke Widjaja 16010621 1527 L23 W36 W17 W16 3.0  
7 Kevin Sun 16898540 1517 W42 L2 W34 W18 3.0  
8 Nursultan Uzakbaev 17137317 1513 W28 L16 W19 W21 3.0  
9 Ella Guo 16380657 1463 W36 L21 W20 W23 3.0  
10 Aaron Craig 12872385 1408 W39 L5 W26 W25 3.0  
11 Andrew Ballantyne 17079795 1299 W41 D3 W27 H--- 3.0  
12 Carliteau Leger 12841454 1487 D29 L23 W28 W22 2.5  
13 Aaron Ng 14302925 1455 W38 D27 W14 L3 2.5  
14 Abhi Kulgod 13306912 1317 D30 W31 L13 W29 2.5  
15 Sebastian Suarez 16875347 1433 X43 L4 L25 W37 2.0  
16 Greg Zhou 16183296 1389 W40 W8 L4 L6 2.0  
17 Matthew Perez 16711456 1230 W25 L1 L6 W38 2.0  
18 Cj Apel 16165833 1223 W26 W33 L5 L7 2.0  
19 Adithya Chitta 16695036 1185 L4 W37 L8 W40 2.0  
20 Matt Long 13377410 1179 L5 W39 L9 W31 2.0  
21 Shiv Sohal 30032729 1168 W31 W9 L1 L8 2.0  
22 Austin Jin 17144712 1153 L32 W44 W33 L12 2.0  
23 Justin Brunet 30055583 1096 W6 W12 L2 L9 2.0  
24 Arjun Muthukumaran 30018527 909 L3 L26 W39 W33 2.0  
25 Jay Phatak 30220271 unr. L17 W35 W15 L10 2.0  
26 Aaron Metyko 30209636 unr. L18 W24 L10 W34 2.0  
27 Teodoro Porlares 12773115 1789 W34 D13 L11 U--- 1.5  
28 Noah Johnson 30182833 1015 L8 W40 L12 H--- 1.5  
29 Tobiah Rex 30164211 1013 D12 W30 L3 L14 1.5  
30 Bradley Patterson 30167485 unr. D14 L29 L31 W42 1.5  
31 Albert Starr 12844781 1609 L21 L14 W30 L20 1.0  
32 Dylan Tang 16551237 1595 W22 U--- U--- U--- 1.0  
33 Daniel Marcus 12905558 1458 W37 L18 L22 L24 1.0  
34 Sean Wu 16802870 1206 L27 W38 L7 L26 1.0  
35 Rehaan Malhotra 30118209 1007 L1 L25 W43 U--- 1.0  
36 Thomas Gu 17005685 660 L9 L6 L40 B--- 1.0  
37 Eli Lee 16707438 491 L33 L19 B--- L15 1.0  
38 Luka Vyatkin 30209432 unr. L13 L34 W42 L17 1.0  
39 Elizabeth Denhup 30161536 unr. L10 L20 L24 W43 1.0  
40 Tyler Johnson 30212590 unr. L16 L28 W36 L19 1.0  
41 Alexia Laffin 30211880 unr. L11 W42 U--- U--- 1.0  
42 William Thibault 16716976 1050 L7 L41 L38 L30 0.0  
43 Bolorkhuu Chadraabal 30231347 unr. F15 U--- L35 L39 0.0  
44 Eric Castro 30229549 unr. L2 L22 U--- U--- 0.0  

Tuesday Night Marathon Round 2 Report

by Abel Talamantez

The big screen inside the chess room broadcasts our 10 DGT boards for viewers inside

Round 2 of the TNM finished leaving the top section completely up for grabs as seven players are at the top with 1.5/2. Abhinav Penagalapati drew with IM Elliott Winslow on board 1 and Christophe Bambou drew with NM Siddharth Arun. After receiving a half point bye for round 1, Nicholas Weng won in a tough game against Chelsea Zhou when she flagged in what lookd like a drawn endgame. With 5 rounds to go, the top section is still wide open for anyone to make a move towards the top.

The top four boards do battle, including Abhinav Pebagalapati from the San Jose Chess Club against IM Elliott Winslow

In the under 2000 section, some rising young stars and a veteran Mechanics' player occupy the top four spots in the standings with 2/2. Leon Quin, Adam Stafford and Kevin Sun won their games and are 2/2 representing youth, while veteran Albert Starr got a point by virtue of a no-show. Kevin used a great tactical shot to defeat Marty Cortinas, showing that the kid is definitely studying his tactics. 

In the under 1600 section, Dominic Zirbel, Sebby Suarez, David Nichol, and Isaac Sterling are all perfect with 2/2. 

Sebby Suarez (white) gets the win against Tobias Rex

Here are some games from round 2, annotated by GM Nick de Firmian

(5) Penagalapati,Abhi (2078) - Winslow,Elliott (2278) [D00]
Mechanics' Jul-Aug TNM: 2000+ San Francisco (2.1), 20.07.2021

1.d4 Nf6 2.Nc3 d5 3.Bf4 g6 [3...e6; 3...Bf5] 4.e3 [4.Qd2!?; 4.h4!?] 4...Bg7 [4...c6; 4...a6; 4...c5!?] 5.h4!?


When I first saw this in some game or other my thought was "how can that work together with e2-e3?" But a lot of other (or the same?) people also thought "maybe I should stop h4-h5." And the results keep poring in, there is no formula. 5...0-0?! Refusing to believe. [5...h5 is probably more circumspect, and is Stockfish's choice. 6.Be2 0-0 7.Nf3 c5 8.dxc5 (8.Ne5 Nc6 9.Qd2 cxd4 10.exd4 Nd7 11.Nf3 (White chickens out) (11.Nxd5 Ndxe5 12.dxe5 Nxe5 13.0-0-0 Be6 14.Ne3 Qb6 15.c3 Rfd8 16.Qc2 Bxa2 17.Rxd8+ Rxd8 18.Rd1 Rc8 19.Nd5 Bxd5 20.Rxd5 Qxf2 21.Qe4 Nc6 22.g4 Nb4! 23.Rd1 Bxc3! 24.bxc3 Na2+ 0-1 (24) Bentley,J (2211)-Lalic,B (2503) Halifax 2003) 11...Nf6 12.Ne5 Nd7 13.Nxc6 bxc6 14.Bh6 Bxh6 15.Qxh6 e5 16.dxe5 Nxe5 17.Qg5 Bf5 18.Qxd8 Rfxd8 19.0-0-0 Rab8 20.Na4 Re8 21.b3 Kg7 22.Rde1 Nd7 23.Kd2 c5 24.Ba6 Be6 25.Be2 Red8 26.Rd1 Rbc8 27.Kc1 Nf6 28.f3 Rc7 29.Rhe1 d4 30.Nb2 Nd5 31.Bc4 Nc3 32.Bxe6 Nxd1 33.Kxd1 fxe6 34.Rxe6 Rdd7 35.Nc4 Re7 36.Ra6 Rc8 37.Nd6 Rf8 38.Ne4 Rf4 39.Nxc5 Rxh4 40.Ne6+ Kh6 41.Nf8 Rg7 42.Re6 Rh2 43.Re2 h4 44.Ke1 h3 45.Kf1 Rxg2 46.Rxg2 hxg2+ 47.Kxg2 Re7 0-1 (47) Sjugirov,S (2661)-Guseinov,G (2665) 34th Leon Blitz op, 2021.07.07. Two weeks ago! Hard to keep up. :-)) 8...Qa5 9.0-0 Qxc5 10.Nb5 a6 11.Nc7 Ra7 12.Nb5 axb5 13.Bxb8 Ra8 14.Be5 b4 15.Bd4 Qa5 16.c3 Bg4 17.Qb3 bxc3 18.Bxc3 Qc7 19.Rac1 Qd8 20.Rfd1 e6 21.Bb4 Re8 22.Bb5 Nd7 23.e4 Bxf3 24.Qxf3 Ne5 25.Qh3 Nc6 26.exd5 exd5 27.Rxc6 bxc6 28.Bxc6 Rxa2 29.Bxd5 Kh7 30.Qf3 Rxb2 31.Bxf7 Rxb4 32.Rxd8 Rxd8 33.g3 Rb6 34.Bxg6+ Rxg6 35.Qxh5+ Rh6 36.Qf5+ Kh8 37.Kg2 Rf6 38.Qh5+ Kg8 39.Qe2 Rdf8 40.Qc2 Rxf2+ 41.Qxf2 Rxf2+ 42.Kxf2 ½-½ (42) Naiditsch,A (2702)-Carlsen,M (2838) Karlsruhe/Baden-Baden 2017. Carlsen not winning. Not like him.] 6.h5 c5 7.hxg6 [7.Nb5!?; 7.Qd2!? Nxh5 8.Bxb8 Rxb8 9.dxc5 Nf6 10.f3 Qc7 11.g4 Qxc5 12.0-0-0 b5 13.Kb1 b4 14.Nce2 e5 15.Ng3 h6 16.N1e2 e4 17.g5 hxg5 18.fxe4 Bg4 19.e5 Ne4 20.Nxe4 dxe4 21.Qd4 Qxe5 22.Qxe5 Bxe5 23.Rg1 f5 24.Rd5 Bf6 25.Ng3 Rbd8 26.Bc4 Rxd5 27.Bxd5+ Kg7 28.Nxe4 Rd8 29.Nxf6 Kxf6 30.e4 Bh3 31.c4 bxc3 32.bxc3 f4 33.Kc2 g4 34.Kd3 g3 35.Kd4 Kg5 36.c4 Kh4 37.Rh1 g2 38.Rb1 f3 39.Ke3 Kg3 40.c5 f2 41.Bc4 g1Q 42.Rxg1+ fxg1Q+ 43.Ke2 Qf2# 0-1 (43) Pranav,V (2311)-Rahul,S (2391) New Delhi 2018] 7...hxg6 This could be a bit too daring. [But after 7...fxg6 8.dxc5!? (8.Nf3 Nc6 9.Ne5 cxd4 10.exd4 Qb6 11.Nxc6 bxc6 12.Rb1 Ng4 13.Be3 e5 14.Na4 Qc7 15.Qd2 Nxe3 16.Qxe3 exd4 17.Qg3 Qa5+ 18.b4 Qxa4 19.Qh4 Qxc2 20.Qxh7+ Kf7 0-1 (20) Rosen,E (2466)-Niemann,H (2956) Titled Tuesday, Chess. com 2020.04.21. A fast win by the Bay Area's prodigal prodigy, who promises to return (at least for a visit).) 8...Nc6 (8...b6?! 9.cxb6 Qxb6 10.Rb1 Nc6 was a Nepo experiment in 2017. He lost two, a quickie and a long ending, to Aronian.) 9.Nf3 Bg4 looks pretty loose 10.Qd2 Qa5 11.Ne5 Rad8 12.f3 Be6 13.Nxc6 bxc6 14.Ne2 Qa4 15.Qd4 Qa5+ 16.b4 Qa3 17.Be5 a5 18.Nf4 Bf7 19.b5 cxb5 20.Bxb5 Rb8 21.Rb1 Rbc8 22.c6 Qxa2 23.0-0 Qxc2 24.Rfc1 Qf5 25.Bd3 Qg5 26.Ba6 Nh5 27.Bxg7 Nxg7 28.Bxc8 Rxc8 29.c7 Nf5 30.Qe5 1-0 (30) Mueller,D (2252)-Schulz,L (2293) Magdeburg 2020] 8.Qd2


8...Ne4!? [8...Nc6 has mostly been played, and is engine-favored, which doesn't prove anything in these new lines. 9.0-0-0 c4!? 10.f3 b5 11.g4 b4 12.Na4 b3 13.axb3 cxb3 14.cxb3 Bd7 15.Qh2 was wild: 15...Nb4 16.Bh6 Rc8+ 17.Kb1 Rc2 18.Ne2 Bxa4 19.Bxg7 Nh5 20.bxa4 Qd7 21.Bxf8 Qxa4 22.Nc3 Rxc3 23.bxc3 Qb3+ 24.Kc1 Qxc3+ 25.Kb1 Qb3+ 26.Kc1 Qc3+ 1/2-1/2 (26) Kulaots,K (2577)-Wan,Y (2482) Riga 2017] 9.Nxe4 dxe4 10.0-0-0 Qb6 11.Bh6 Bxh6!? [11...Bf5 12.Bxg7 Kxg7 13.Ne2 Nd7 14.Ng3 Bg4 15.Be2 Bxe2 16.Qxe2 Nf6 17.dxc5 Qxc5 18.Rd4 e5 19.Rc4 Qb5 20.a4 Qa6 21.Rb4 Qxe2 22.Nxe2 b6 23.Nc3 Rac8 24.a5 Rh8 25.Rxh8 Rxh8 26.axb6 axb6 27.Rxb6 Rh2 28.Kd2 Rxg2 29.Ke2 Ng4 30.Nxe4 f5 31.Kf3 Rh2 32.c4 Rh3+ 33.Kg2 Rh2+ 34.Kg3 Rh1 35.Nd2 Rg1+ 36.Kf3 e4+ 37.Ke2 Rg2 38.c5 Rxf2+ 39.Ke1 Rh2 40.c6 (40.Nc4!? Rc2 41.b3 Nxe3 42.Nxe3 Rxc5+/- /+/=) 40...Rh1+ 41.Ke2 Rh2+ 42.Ke1 Rh1+ 43.Ke2 ½-½ (43) Kaufman,R (2269)-Canessa,J (1962) John Donaldson TNM, San Francisco 2019.12.21. A local game.] 12.Rxh6 Nd7 13.Rh4 Nf6 14.Nh3 Bxh3 15.Rxh3 Kg7 16.Be2 Rh8 17.Rdh1 Rxh3 18.Rxh3 Rh8 19.Rxh8 Kxh8 20.Qc3 cxd4 21.exd4 Kg7 22.Qc5 Qd6 23.Qxd6 exd6 24.c4 Kf8 25.Kd2 d5 26.b3 Ke7 27.Kc3 Ne8 28.c5 Nc7 29.b4 f5 30.a4 Kd7 31.g3 g5 32.b5 b6 33.cxb6 axb6 34.Bh5 Kd6 35.Kb4 Ne6 36.Kc3


36...f4? [36...g4!-+] 37.Bg4 e3?!= I thought I was winning! But White can get back and hold it together. [37...Nd8 38.Kd2 Nb7=/+; 37...Nc7 38.Kb4 f3=/+; 37...Ng7 38.Kd2 Ne8 39.Bc8 Nf6=/+] 38.fxe3 fxg3 39.Bf3 g4 40.Bg2 Ng7 41.Kd3 Nf5 42.Ke2 Ke6 [42...Nh4 43.Kf1 Nf5 44.Ke2 would be a rep.] 43.Bh1!


43...Nd6 44.Bg2 Nc4 45.e4!? The move I didn't want to see. 45...dxe4 46.Bxe4 Kd6 47.Bf5


47...g2 48.Kf2 g3+ 49.Kg1! Kd5 50.Bd7 Kxd4 51.Kxg2 Kc5 52.Kxg3 It's just a draw. 52...Kb4 53.Kf2 Kxa4 54.Ke2 Kb4 55.Kd1 Na3 56.Kc1 Nxb5 57.Kb2 1/2-1/2 1/2-1/2

(3) Weng,Nicholas (2013) - Zhou,Chelsea (1879) [B80]
Mechanics' Jul-Aug TNM: 2000+ San Francisco (2.3), 20.07.2021
[de Firmian]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f3 [Trying to avoid 6.Be3 Ng4] 6...e6 [6...e5 7.Nb3 Be6 8.Be3] 7.Be3 Be7 8.Qd2 0-0 9.g4 Nicholas plays the English Attack with real aggression. [9.0-0-0] 9...b5 [9...Nc6 10.0-0-0 Nd7 11.h4 Nde5 12.Qf2 Bd7 13.Kb1 Na5 14.g5 Nec4 15.Bc1 b5 16.f4 b4 17.Nce2 Qb6 18.Rh2 was about equal in Leko-Morozevich, San Luis 2005. 1/2 (39)-1/2 (68)] 10.g5 b4


11.Na4N [11.Nce2 is a reasonalble alternative] 11...Nfd7 12.h4 Qa5 13.b3 Bb7 14.Bh3 d5


15.f4 e5?! [15...dxe4 16.Nxe6 fxe6 17.Bxe6+ Kh8 18.Bxd7 Rd8 19.Bb6 e3 20.Qh2 seems to favor White; 15...Nc5 may be best] 16.Nf5 Re8 17.Bg2 [17.fxe5 Nxe5 18.0-0-0] 17...dxe4?! [17...Bf8] 18.Nxe7+ Rxe7 19.f5


White has an aggressive attacking position with the two bishops and advanced kingside pawns. 19...Nc6 20.Bxe4 [20.f6!] 20...Qc7 21.Qg2 Rb8 22.0-0?! [22.0-0-0!] 22...Nd4 23.f6 Re6 24.fxg7 Bxe4 25.Qxe4 Qxc2 26.Qxc2?! [26.Qg4] 26...Nxc2 27.Ba7 Nxa1 28.Bxb8 Nxb8 29.Rxa1 Kxg7


Black has an extra pawn in the ending but it's not easy to win. 30.Kg2 a5 31.Re1 h6 32.Kf3 hxg5 33.hxg5 Kg6 34.Nc5 Re7 35.Kg4 Nc6 36.Rf1! Nicholas gets some counterplay 36...Nd4 37.Rf6+ Kg7 38.Ne4 Rd7 39.Nd6 Ne6 40.Nf5+ Kg8 41.Nh6+ Kg7 42.Kf5 e4! 43.Kg4 Nc5 44.Nf5+ Kg8 45.Kf4 Rd2?! Chelsea starts to go wrong here. Letting the f-pawn go leaves White with a dangerous passed g-pawn 46.Nh6+ Kf8 47.Rxf7+ Ke8 48.Rf5 Rf2+?! [48...Ne6+! 49.Kxe4 Rxa2 is equal] 49.Ke3 Rxf5 50.Nxf5 Nd3 51.Kxe4 Nc1 52.g6 Nxa2 53.Ke5 Black lost (presumably on time.) After 53...Nc3 there are reasonable drawing chances. 1-0

(4) Liu,Richard (1824) - Heidari,Ako (1964) [E38]
Mechanics' Jul-Aug TNM: 2000+ San Francisco (2.4), 20.07.2021
[de Firmian]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.Nf3 [5.dxc5] 5...cxd4 6.Nxd4 Nc6 7.Nxc6 bxc6 8.e3 0-0 9.Bd3 e5 10.0-0 d5 Black is doing fine at this point. 11.b3 e4?! Black didn't have to comprise his center at this point. He had natural developing moves: [11...Re8; 11...Be6] 12.Be2


12...Bg4? [12...Ng4! all but forces a draw at least, but maybe Ako wanted more. 13.cxd5 Nxh2! 14.Kxh2 Qh4+ 15.Kg1 Bd6 went it's a perpetual after either pawn move 16.f4 (16.g3 Bxg3=) 16...exf3 17.Rxf3 Qh2+ 18.Kf2 Qh4+ 19.Kf1 (19.Kg1; 19.g3?? Qh2+ 20.Ke1 Bg4-+) ] 13.Bb2+/- Rc8?


Stockfish's three top moves are bishop retreats! 14.Rfd1?! [14.Nxe4! works nicely!] 14...Qd7 15.Bxg4 Qxg4 16.Ne2! It mght look like Black is okay, but White gets to the key squares quickly. 16...Rfd8 17.Rac1 h5?! 18.Bxf6 gxf6 19.h3! An important escape for the king 19...Qg5?! 20.cxd5 Rxd5 [20...cxd5 21.Qxc8 Rxc8 22.Rxc8+ Kg7 23.Nf4 is too much for Black to survive.] 21.Qxe4 Sadly Black's pawn structure is shattered. There is little hope here. 21...Rxd1+ 22.Rxd1 Bf8 23.Ng3 a5 24.Qf3 h4 25.Ne4 Qg6 26.Nxf6+ Kh8 27.Rd4 Ouch 27...Be7 28.Rxh4+ Kg7 29.Rh7+ Qxh7 30.Nxh7 Rh8 31.Ng5 [31.Qg4+ Kxh7 32.Qe4+ Kg7 33.Qxe7 doesn't even let it get interesting.] 31...Bxg5 32.Qg3 Kh6 33.Qd6+ Kg7 34.Qxc6 Bf6 35.Qf3 Rd8 36.g3 The queen is just too powerful. It takes a while but there is really no chance for Black. 36...Rd2 37.Qg4+ Kf8 38.Qa4 Bc3 39.Qa3+ Bb4 40.Qa4 Kg8 41.a3 Ra2 42.Qe8+ Bf8 43.a4 Rb2 44.Qa8 Rxb3 45.Qxa5 Ra3 46.Qa8 Kg7 47.a5 Ra2 48.a6 Ra1+ 49.Kg2 Bc5 50.Qd5 Rc1 51.Qa2 Rd1 52.a7 Bxa7 53.Qxa7 Rd6 54.Qd4+ A game with some fine points. 1-0

(1) Talamantez,Abel (1646) - Starr,Albert (1609) [A85]
Mechanics' Jul-Aug TNM: Extra Game San Francisco (2.9), 20.07.2021
[de Firmian]

1.d4 f5 2.Nf3 Nf6 3.c4 g6 4.Nc3 Bg7 5.Bf4 An unusual but reasonable move. It has themes from the London System. 5...0-0 6.e3 d6 7.Be2 Be6?! This is certainly provacative. 7...c6 would be safer. 8.Ng5 Bd7


9.h4 A good positional move, but [9.c5! Kh8 (9...h6 10.Qb3+ d5 11.Nxd5) 10.Qb3 would win at least a pawn for White] 9...h6 10.Nf3 Be8 11.Qb3 b6 12.d5 Nbd7 13.Nd4 Nc5 14.Qc2 a5 White has the edge with the strong knight on d4 and the soft black light squares on e6 and c6. 15.f3 Bf7 16.0-0-0!? Abel plays aggressivley! The game is heating up. 16...e5 17.dxe6 Nxe6 18.g4! A fine move, not worrying about the doubled f-pawns that arise. 18...Nxf4 19.exf4 Qc8?! [19...fxg4 20.fxg4 Qd7 21.Rhg1 is very good for White but material stays equal] 20.gxf5 c5! 21.fxg6! cxd4 22.gxf7+ Rxf7 23.Rxd4 Ne8 24.Re4 Nc7 25.Rg1


With the two extra pawns and safer king White is winning. Albert makes it a fight though. 25...Kh8 26.Bd3 Ne6 27.Nb5?! [27.Nd5] 27...Qc5! 28.Rge1 [28.Rg6 Nxf4 29.Nxd6!] 28...Nxf4 29.Re8+ Rxe8 30.Rxe8+ Rf8 31.Re1?! [31.Rxf8+ Bxf8 32.Qd2 would keep a big edge] 31...Nxd3+ 32.Qxd3 Qf2 [32...Bxb2+!] 33.Re2 Qf1+ 34.Kc2 Be5 35.Qd2 Rf6 36.Rxe5?


A bit of a panic move to force the issue. White is still fine after [36.Nc3] 36...Qxc4+! The zwischenzug crosses White up. Now Black gets a clear edge. 37.Kb1?! [37.Nc3] 37...dxe5 38.Qd8+ Kg7 39.Qe7+ Qf7 40.Qxe5 Qg6+ 41.Kc1 Qg1+ 42.Kd2 Qf2+ Nice technique by Albert. Collecting the f-pawn makes the ending an easy win. 43.Kd3 Qxf3+ 44.Kd2 Qf4+ 45.Qxf4 Rxf4 46.h5 Rb4 0-1

(2) Clemens,Kristian (1997) - Argo,Guy (1928) [E16]
Mechanics' Jul-Aug TNM: 2000+ San Francisco (2.6), 20.07.2021
[de Firmian]

1.Nf3 f5 2.d4 Nf6 3.c4 e6 4.Nc3 Bb4 5.Bd2


Does this have a name? Some combination of Nimzo and Bogo followed by Dutch seems like it gets there. 5...Bxc3 6.Bxc3 Ne4 7.Qc2 0-0 8.g3 Nxc3?! There should be no rush to trade off the strong knight right away. 9.Qxc3 b6 10.Bg2 Bb7 11.0-0 d6 12.Rfd1 Qf6 13.Rac1 a5?!


Weakening the queenside. [13...Nd7 Development was called for.] 14.c5! In an otherwise quiet game so far, White opens lines to capitalize on his better development. 14...Na6 [14...dxc5 15.dxc5 Qxc3 16.Rxc3] 15.cxb6 cxb6 16.Qb3?! [16.a3! first stops Black from an interim defense of b6.] 16...Nb4! Back to the center. Now Black is close to equality. 17.Nd2 Bxg2 18.Kxg2 Qe7 [18...f4! peeks into White's kingside and leaves White with no advantage.] 19.Nc4 Rab8 20.a3 Na6?! [20...Nd5 21.Ne3! is better, but not by much.] 21.Kg1?! White had more useful things to do. 21...Nc7 22.Nd2 And here: [22.Rc2; 22.Qf3] 22...f4 23.Rc6 Nd5 24.Ne4 Rbd8


25.Nc3? [25.Qd3 keeps the advantage.] 25...fxg3 26.hxg3 Nf4? Black sees a mirage -- [26...Qf7 27.f3 Ne3-/+] 27.gxf4 Rxf4 28.Rd3 -- and is lost. [28.f3!] 28...Rdf8 29.Nd1 Qf7 30.Rf3 This really dampens the attack. 30...Qg6+ 31.Rg3 Qe4 32.Qc2 Qxc2 33.Rxc2 Rxd4 34.Ne3 b5 35.Rc7 Rf7 36.Rc8+ Rf8 37.Rc2 h5 38.Rg5 Rdf4 39.Rc7 R8f7 40.Rxf7 Kxf7 41.Rxb5 d5 42.Rxa5 g5


43.Nxd5 Not necessary, and objectively giving away some of his advantage, but the simplification should convince Black to resign. 43...exd5 44.Rxd5 Kf6 45.Rd3 g4 46.Rd5 Kg6 47.b4 Rc4 48.Rc5 Rd4 49.b5 Rd2 50.e3 h4 51.b6 Rb2 52.Rc6+ Kf5 53.a4 Ke4 54.Rc4+ Kf5 55.Rf4+ Kg5 56.a5 h3 57.Kh2 Kh4 58.e4 Rxf2+! At least Guy throws in a scare. It doesn't work though. 59.Rxf2 g3+ 60.Kg1 gxf2+ 61.Kxf2 1-0

Here are the current standings 

SwissSys Standings. Jul-Aug 2021 Tuesday Night Marathon: 2000+

# Place Name Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 1-7 IM Elliott Winslow 2278 W8 D4 H--- H---       1.5
2   NM Siddharth Arun 2253 W14 D3       H--- H--- 1.5
3   NM Christophe Bambou 2121 W9 D2           1.5
4   Abhi Penagalapati 2078 W12 D1           1.5
5   Nicholas Weng 2013 H--- W10     H---     1.5
6   Richard Liu 1824 H--- W11           1.5
7   Anthony Acosta 1818 H--- W13           1.5
8 8-10 Kristian Clemens 1997 L1 W14           1.0
9   Kayven Riese 1900 L3 B---           1.0
10   Chelsea Zhou 1879 B--- L5       H---   1.0
11 11-13 Ako Heidari 1964 H--- L6           0.5
12   Andrew Guo 1885 L4 H---           0.5
13   Andre Persidsky 1828 H--- L7           0.5
14 14 Guy Argo 1928 L2 L8           0.0

SwissSys Standings. Jul-Aug 2021 Tuesday Night Marathon: Under2000

# Place Name Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 1-4 Leon Quin 1611 W14 W10           2.0
2   Albert Starr 1609 W9 X13           2.0
3   Kevin Sun 1517 W24 W12   H---       2.0
4   Adam Stafford 1473 W25 W15           2.0
5 5-8 Samuel Brownlow 1795 D7 W19           1.5
6   Nikhil Pimpalkhare 1577 W16 H---         H--- 1.5
7   Daniel Perlov 1555 D5 W18           1.5
8   Nursultan\ Uzakbaev 1513 W17 H---           1.5
9 9-14 Luiz Uribe 1856 L2 W21           1.0
10   Amitoj Singh 1819 W20 L1           1.0
11   Ted Porlares 1789 D21 H--- H---         1.0
12   Marty Cortinas 1720 W22 L3           1.0
13   Frederick Hope 1646 W23 F2           1.0
14   Aaron Craig 1408 L1 B---           1.0
15 15-23 Adam Mercado 1879 D19 L4           0.5
16   James Mahooti 1800 L6 H--- H---         0.5
17   Gregory Rousso 1745 L8 D22           0.5
18   David Rakonitz 1622 H--- L7           0.5
19   Joel Carron 1610 D15 L5           0.5
20   Nick Casares Jr 1600 L10 H--- H--- H---       0.5
21   Stephen Parsons 1532 D11 L9           0.5
22   Anvi Penagalapati 1485 L12 D17           0.5
23   Jerry Morgan 1483 L13 H---           0.5
24 24-25 Glenn Kaplan 1776 L3 U---           0.0
25   Jim Cohee 1612 L4 U---           0.0

SwissSys Standings. Jul-Aug 2021 Tuesday Night Marathon: u/1600

# Place Name Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 1-4 Dominic Zirbel 1481 W17 W14           2.0
2   Sebastian Suarez 1433 W18 W13           2.0
3   Isaac Sterling 1236 X--- W23           2.0
4   David Nichol 435 B--- W11           2.0
5 5-9 Valerie Jade 1490 W15 H---           1.5
6   Claudio Bastiani-Fonck 1377 W27 D9           1.5
7   Charles James 1368 W21 H---           1.5
8   Paul Reed 1322 W30 H---           1.5
9   Ambrogino Giusti unr. W25 D6           1.5
10 10-23 Samuel Agdamag 1586 L13 W26           1.0
11   David Olson 1400 W31 L4           1.0
12   Andrew Imbens 1296 H--- H---     H---     1.0
13   Tobiah Rex 1013 W10 L2           1.0
14   Andrew Ballantyne 948 W28 L1 H---         1.0
15   Andrejs Gulbis 826 L5 W31           1.0
16   Pratyush Hule 825 H--- H---           1.0
17   Romeo Nehme 795 L1 W30         H--- 1.0
18   Thomas Gu 660 L2 W28           1.0
19   Kevin Nguyen unr. H--- H---           1.0
20   James Wang unr. H--- H---   H--- H---     1.0
21   Tony Kachakji unr. L7 W29           1.0
22   Ian Atroshchenko unr. D24 H---           1.0
23   Iven Yarovoy unr. W29 L3 H---         1.0
24 24-27 Peter Borah 1232 D22 U---           0.5
25   William Thibault 1050 L9 D27           0.5
26   Thomas Dobbs unr. H--- L10           0.5
27   Tyler Johnson unr. L6 D25           0.5
28 28-31 Richard Hack 1569 L14 L18           0.0
29   Richard Ahrens 1228 L23 L21           0.0
30   Trent Hancock unr. L8 L17           0.0
31   Jabez Wesly unr. L11 L15   H--- H---     0.0

SwissSys Standings. Jul-Aug 2021 Tuesday Night Marathon: Extra Games - JulyAugTNM

# Place Name Rating Rd 1 Rd 2 Total
1 1-5 Kayven Riese 1900 U--- W2 1.0
2   Juan Cendejas 1718 W6 L1 1.0
3   Albert Starr 1609 U--- W7 1.0
4   David Nichol 435 W9 U--- 1.0
5   Kevin Nguyen unr. U--- W8 1.0
6 6-9 Chelsea Zhou 1866 L2 U--- 0.0
7   Abel Talamantez 1800 U--- L3 0.0
8   Pratyush Hule 825 U--- L5 0.0
9   Benjamin Grant unr. L4 U--- 0.0

Tony's Teasers

Here is a mate in four from longtime Mechanics' Institute player Tony Lama. This should occupy a good chunk of your time this weekend!

White to move and mate in 4 Francis C. Collins 1881

Mechanics' Institute Events Schedule

The Mechanics' Institute will continue to hold regular and online events. Here is our upcoming schedule for players:

Mechanics' Institute July Blitz Championship Online: July 24, 6:30PM PT. 8SS G/5+2:

Mechanics' Institute Thursday Night Marathon Online: July 29-August 19, 6:30PM PT. 8SS G/35+5:

20th Pafnutieff Memorial Championship: July 31, 10AM PT. 4SS G/45;d5:


Mechanics' Institute Class Schedule

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Scholastic Chess Bulletin

Please click the following LINK to read our latest edition.
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Solution To Tony's Teaser

1. Qf6+!!  Kb4  2. Qd4+  Kb5  3. Qc5+  Ka4  4. Qc4#

1. Qf6+!! Kb4  2. Qd4+ Kb5  3. Qc5+ Ka6 4. Qxa5#

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