June 12, 2021
Table of Contents
- June TNM Live Report
- Thursday Night Marathon Report
- Tony's Teasers
- Twitch Arena
- Events/Class Schedule
- Scholastic Bulletin
- FM Paul Whitehead's Column
- GM Nick de Firmian's Column
- Solutions to FM Paul Whitehead's Column
- Submit your piece or feedback
by Abel Talamantez
Round 2 of the Tuesday Night Marathon is complete, and we have four players with perfect scores in the top section: FM Kyron Griffith, IM Elliott Winslow, Theo Biyiasas, and Gary Harris. Abhishek Mallela pulled off a miracle draw against Anika Rajaram, as he forced an exchange in a completely losing position that would either create a stalemate or cost her the rook and a losing position. She opted for the stalemate. Both players had stopped recording as they were under 5 minutes so we don't have a record of the finish.
In the under 1800 section, 6 players have perfect scores, which includes Nursultan Uzakbaev, Kevin Sun, Sebby Suarez, Andrew Imbens, and Nikhil Pimpalkhare.
Please visit our event page for full event information HERE.
Here are some annotated games from round 2, from GM Nick de Firmian:
(3) FM Griffith,Kyron (2493) - Makhanov,Gaziz (1855) [A25]
MI June TNM San Francisco (2.1), 08.06.2021
1.c4 e5 2.g3 Nf6 3.Bg2 Bc5 This at first naive-looking development has quite a bit of subtlety to it -- such that it being named the Karpov System isn't so surprising after all. Unfortunately for Black, he missed that there were dangers lurking, and succumbed to a classic positional pitfall. 4.Nc3 Nc6 5.e3 Greatly preferred over other moves -- White blunts the bishop's action, opens up e2 for a safe knight development, and eventually prepares d2-d4. 5...0-0 6.Nge2 a6 Black secures a seemingly safe refuge to keep pressure on the center, but it's a tricky business. [6...d6 is most common, when among others Carlsen has played 7.0-0 (while Karpov -- this time as White! -- played the immediate 7.d4) ; 6...Re8 is more flexible (and stops 7.d4 for a move), but White can maybe not panic either: 7.0-0 e4 8.d3 scores very well. But at least the bishop's retreat is still on, hoping for better use later.] 7.0-0 d6 8.a3 Bf5 9.d4 Ba7 10.b4 [10.h3 holds up any restraint Black might plan with ...Qd7.] 10...Rb8?! Slightly suspicious -- and in fact that square could well be used by quite a few other pieces!
Black's problem is obvious to us humans -- that dark-squared bishop risks burial alive. The computers of old would innocently play for White d4-d5 and e3-e4, gaining space but freeing the bishop. Nowadays they're strong enough to try to keep the center. But look what happens in our game: [10...h6 was by far the highest level game to get this far: White decided to grab the space like the computers above: 11.d5 Ne7 12.e4 Bh7 13.Qd3 Nd7 14.Be3 Qb8!? 15.Rac1 1-0 (40) Fridman,D (2653)-Ter Sahakyan,S (2578) Plovdiv 2012] 11.Bb2 Qd7?!N [11...exd4 12.exd4 Qd7 still keeps the fight alive.] 12.Nd5!? Ne8?! Black might be dreaming of ...Bh3 and ...f5 with an attack, but probably it's just a dream. 13.b5 Na5?!
[13...Ne7 permits White to cash in with a positional plus with 14.dxe5 dxe5 15.b6 cxb6 16.Bxe5 but this is the lesser evil.] 14.Qa4! Exposing the fragility of Black's defenses. 14...b6?! Black absolutely had to avoid this! His bishop and a few other pieces are all but dead. Again, computers see the material on the board, but have some trouble seeing that those pieces are permanently out of the game. 15.Rfd1 f6 [15...c6?? 16.bxc6 Nxc6 17.Qxc6] 16.Rac1 Bg4 17.Re1 Rd8 18.Nb4 [18.Bc3! is pretty good, too.] 18...axb5 19.cxb5 Bb8 20.Nc6 Nxc6 21.Bxc6
White might as well be up a piece. 21...Qe6 22.f3 Bh5 23.g4 Bg6 24.e4 So long as there is a breakthrough available on the kingside or the d-file, Black is totally lost. 24...Kh8 25.Ng3 Bf7 26.d5 No ...d5 for Black; White is sure he can crash through. 26...Qc8 27.Nf5
Black begs White to "just" win the Exchange (else Ne7 wins Black's queen) -- but why even bother... 27...Rd7 28.Rc2 g6 29.Bxd7 Qxd7 30.Nh6 Kg7 31.Bc1 Kh8 32.Qc4 Ng7 33.Nxf7+ Qxf7 34.Bh6 g5 35.h4 Qg6 36.Bxg7+ Qxg7 37.Rh2 gxh4 38.Rxh4 f5 39.exf5 Rxf5
40.Rxh7+ A nice tactic to snap Black's resistance, but still a few more moves. 40...Kxh7 41.Qe4 Qg6 42.Qxf5 Qxf5 43.gxf5 Kg7 44.Kf2 1-0
(4) Gerstoft,Philip (1788) - IM Winslow,Elliott C (2278) [B22]
MI June TNM San Francisco (2.2), 1983
1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.Nf3 Nc6 5.Bc4 [5.d4 is most common, 5...cxd4 6.cxd4 d6 7.Bc4 (7.a3) when Black can try 7...dxe5 8.dxe5 (8.Bxd5 Qxd5 9.Nc3 Qd6! 10.d5 Nd4! 11.Nxd4 exd4 12.Qxd4 e5 13.Qd3 Bd7 when Black's pawn are more mobile, with the plan ...f5 and ...Kf7!) 8...Ndb4! can get complicated, but Black winds his way out of trouble and hopes to leav White with a week pawn on e5 after exchanges.] 5...Nb6 [5...e6 seems to hold up well.] 6.Bb3 c4!? An odd pawn to push White around. White will soon have breaks with the b- or d-pawn, but Black hopes in the meantime to use his artificial central majority. 7.Bc2 d6 8.exd6
8...e5 The top players are pretty evenly divided between this [and 8...Qxd6] 9.0-0 Bxd6
Now Black is ready to castle, but in fact... 10.h3?!N Unnecessary. [Michael Adams is the big hero of this line, championing 10.d3 on numerous occasions.] 10...0-0? is also too relaxed: [10...f5! would show up White's previous lapse, rendering the break possible but still problematic. 11.d3 cxd3 12.Qxd3 e4 13.Qe2 Be6 14.Rd1 and Black has the certain upper hand after 14...Qe7 (14...Bc4 is not so good.) ] 11.d4 cxd3
[11...exd4!? 12.Nxd4 Re8= lets White mess up Black's pawns, but they're relatively secure -- and they control some useful squares.] 12.Qxd3 It looks like Black has kept the better center pawn, but this mate threat is more than a little annoying. 12...g6?! [12...f5 13.Bb3+ Kh8 14.Rd1 Bc7 15.Qxd8 Rxd8 16.Rxd8+ Bxd8 is some advantage for White -- he develops more smoothly and Black's queenside comes under fire.] 13.Bh6?! White tries too hard to make something of the dark squares, unsuccessfully. [13.a4!?+/= is the computer's choice.] 13...Re8? [13...Bf5! 14.Qe2 Re8 The bishop trade actually favors Black.] 14.Nbd2!+/- Now White is out and causing trouble while Black struggles still. 14...Be7?! [14...Bf8 right away] 15.Qe2!
Queens on the board for maximum annoyance. 15...Bf8 [15...Bf5 16.Ne4 Be6 17.b3 f6] 16.Bg5 f6 17.Bh4 The bishop is offsides a bit, but Black is always concerned with pressure on all sorts of squares. 17...Be7 18.Rad1 [18.Rfd1!?] 18...Qc7 19.Ne4 Kg7 20.Rfe1? [20.g4!? is a striking but possibly effective blow. 20...g5?? 21.Nexg5!! fxg5 22.Qe4! is just the sort of thing Black must avoid.] 20...f5!-/+ and Black takes over the initiative with healthy pawns on the march. 21.Ng3 Bxh4 22.Nxh4 e4? They've marched enough for now!
[Time to bring up reinforcements: 22...Be6 Here the sacrifices on f5 don't quite cut it.] 23.Nf3 White tries to get that knight back in the game, provoking Black into a daring avalanche of pawns. 23...Be6 24.Nd2
24...e3!? Black couldn't bring himself to stop the flow of the pawns. [24...Rad8! keeps a winning grip on the center.] 25.Nb3 Curious that not only can't White take the pawn either way, but he still can't. 25...Bc4 [25...a5! is the Alpha-Zero-inspired "final straw" (although here White still can fight on). Maybe ...h5 next.] 26.Bd3 f4?!
Black presses forward, hoping to confound White with fright if nothing else. [26...exf2+ 27.Qxf2 Rxe1+ 28.Qxe1 Rd8 29.Bxc4 Nxc4 30.Rxd8 Qxd8 does a nice job of controlling squares, with a healthy but not overwhelming advantage.] 27.Nf1! Cool defense. [Note that 27.Bxc4 exf2+ 28.Qxf2 fxg3 29.Qc5 Na4! wins the b-pawn and the game, if you believe Stockfish's numbers.] 27...f3!? Nothing objectively, but a scary and disconcerting assault! [27...exf2+ 28.Qxf2 Rxe1 (28...Bxd3 29.Rxd3 Rxe1 30.Qxe1 Qf7 in fact nothing special.) 29.Qxe1 Bf7 is some vague pull, but hardly decisive.] 28.gxf3! This must be played. 28...exf2+ 29.Qxf2 Rxe1 30.Qxe1 Bxd3?! White has a reply: [30...Rd8 would maintain equality but no more. 31.Be4 for example.] 31.Rxd3 Ne5
32.Re3? [32.Qg3! stops Black cold for long enough to get into position -- White has some advantage (still a pawn).] 32...Nbc4 This was Black's vision -- the Exchange is won, still for a pawn, and the white knights have a hard time coordinating. 33.Nfd2 Nxe3 34.Qxe3 Nc6 35.Kg2 Qe7 [35...Qe5 could be better, but Black wants that square for knight advancement.] 36.Ne4 Rd8 37.Nbd2 b6 38.a3?! Ne5 39.c4 Nd3 40.b4 Qe5 [Even more effective is 40...Qh4] 41.h4 Nf4+ 42.Kf2?! [42.Kg3!?] 42...Rd3 More effective than this? 43.Qe1 Qd4+ 44.Kg3 Nh5+ 45.Kg2 Re3 46.Qf2
46...Re2 Black didn't see a crusher so claims the queen. [46...Nf4+! is that crusher.] 47.Qxe2 Nf4+ 48.Kf1 Nxe2 49.Kxe2 Qb2 50.c5 bxc5 51.bxc5 Qxa3 52.Nc4 Qb3 53.Ne3 a5 0-1
(5) Heidari,Ako (1980) - Harris,Gary (1827) [B06]
MI June TNM San Francisco (2.4), 08.06.2021
1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 g6 5.Nf3 Bg7 6.Na3 cxd4 7.Bc4 Qe4+
8.Be3! e6? [8...Nh6; 8...dxe3?? 9.Bxf7+! (9.0-0+- is surprisingly crushing as well, but not as "obvious") ] 9.cxd4? [9.Nb5! Kf8 (Really? The best try?) 10.0-0! is Ako's "What Might Have Been"] 9...a6 [9...Ne7 Black really ought to get castled.] 10.0-0 b5
Black shouldn't see the light of day. 11.Bd3?! But there are tactical possibilities everywhere: [11.Bxb5+!; 11.Ng5!! Qb7 12.d5!!] 11...Qd5 12.Rc1 Bb7
Black tries to put his position in order when the pertinent features are the isolated queen pawn (more weak than strong here) and the misplaced knight on a3 (it should be temporary!). Oh, and the pawn at a2, if Black dares. The problem is it's White's move. 13.Qd2? Wrong plan. [13.Rc7! disrupts Black in more than one way. 13...Nf6 14.Nc4!! Nbd7 (14...bxc4 15.Bxc4 Qd6 (15...Qe4 16.Re1 is more than Black can handle. e.g. 16...Bd5 17.Bg5 Qf5 18.Qa4+ Nbd7 (18...Kf8 19.Qb4+ leads to mate!) 19.Bxf6) 16.Rxb7 0-0 17.Ne5 is a pawn and all sorts of other advantages.) 15.Na5 Rb8 16.Nxb7 Rxb7 17.Rc8+ when Black's king will be caught up in the battle.] 13...Nf6 [13...Qd8?! 14.Nxb5 axb5 15.Bxb5+ Kf8 16.d5 is still disorder.] 14.Bh6? [14.Rc7 0-0= and the worst has passed.] 14...0-0 15.Bxg7 Kxg7 Now more than the worst has passed -- it becomes all about the weak d-pawn. 16.Rfe1 Nc6 17.Rc5? Just a liability as it turns out. [17.Bb1 Rfd8 18.Nc2 Qd6-/+] 17...Qd6 18.Nc2
18...Nxd4!-+ and White's house of cards tumbles. 19.Qc3 Nxf3+ 20.gxf3 Bxf3 21.b4 Qf4 22.Ne3 Rad8 Two pawns and a nasty danger on the a8-h1 diagonal. 23.Be2 Ba8 Sensible humans! [23...Kg8 was even better, claims the machine.] 24.a4 Rd4 25.axb5 axb5 26.Rxb5 e5 27.Rd1?
[27.Ng2 Bxg2 28.Kxg2 Re8 secures a won pawn-up something, middlegame or endgame.] 27...Qxf2+! Who is going to miss playing this? [But 27...Ne4! was far more deadly! 28.Qe1 Ng5 goes immediately for the royal throat.] 28.Kxf2 Ne4+ 29.Ke1 Nxc3 30.Rxd4 exd4 31.Nc2 Nxb5 32.Bxb5 d3 [32...Rd8! of course] 33.Bxd3 f5 34.Kf2 Re8 35.Nd4 Kf6 36.b5 Rd8 37.Ke3
37...f4+ 38.Kd2 Rxd4 39.Kc3 Rxd3+ Merci! But some people insist that they suffer... 40.Kxd3 f3 41.Ke3 Kf5 42.b6 Bb7 43.h3 Ke5 44.Kf2 Kf4 45.h4 h5 46.Kg1 Ke3 47.Kh2 Kf4 48.Kg1 Kg3 49.Kf1 Ba6+ 50.Ke1 f2+ 51.Kd2 0-1
(6) Clemens,Kristian - Hao,Max [D58]
1.Nf3 d5 2.d4 Nf6 3.c4 e6 4.Nc3 Be7 5.Bg5 0-0 6.e3 h6 7.Bh4 b6 8.cxd5 exd5 9.Bd3 c5?! 10.dxc5 bxc5
11.Bxf6 Bxf6 12.Nxd5! Fine opening play by Kristian. The knight is immune because of Bh7+. White doesn't win a pawn but gains the valuable black d-pawn for the b-pawn. Thus the black c-pawn becomes isolated and weak, 12...Bxb2 13.Rb1 Bf6 [13...Qa5+? 14.Qd2 Qxd2+ 15.Nxd2 Be5 16.Ne7+ Kh8 17.Be4 wins] 14.Nxf6+ [even stronger is 14.Be4 Nc6 15.0-0 Rb8 16.Nxf6+ Qxf6 17.Qd5] 14...Qxf6 15.Qc2 Na6 16.a3 Rb8 17.Rxb8 Nxb8 18.0-0 Nd7 19.Rd1 Ne5 20.Nxe5 Qxe5 21.Qa4 Bg4? oops. A sad oversight by Max just drops the bishop. 22.Qxg4 Qc3 23.Qe4 g6 24.Bc4 Kg7 25.Qd3 Qb2 26.g3 h5 27.h4 Qf6 28.Qd5 Rb8 29.Qd6 Qf3 30.Qe5+ Kh7 31.Qxb8 Qxd1+ 32.Kg2 Kg7 33.Qe5+ Kf8 34.Qxc5+ Kg8 35.Qe5
Black resigns as there is no swindler potential in this position (even for Kyron Griffith). 1-0
(7) Mercado,Adam - Drury,Mark [B78]
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 0-0 8.Qd2 Nc6 9.Bc4 Bd7 10.0-0-0 Rc8 11.Bb3 Ne5 12.h4 h5
A classic Yugoslav Attack against the Dragon. Sure to be fireworks sometime in the game. 13.Rhg1?! This could end up being a little slow. 13. Rdg1 would keep an attacking rook on the h-file. 13...Nc4 14.Bxc4 Rxc4 15.Qe2 Rxc3! The common Dragon exchange sacrifice. Play against the white king is worth at least the material invested. 16.bxc3 Qa5 17.Kb2 Rc8 18.Bd2 b5 19.Qe3 Rc4 Black has the more dangerous attack. White has yet to get anything going on the kingside. 20.Nb3 Qa4 21.Kb1 Be6 22.Bc1 Nd7 [22...Nxe4? 23.fxe4 Rxc3 24.Rd3 defends. Black is right to build the attack patiently.] 23.Bb2 Nc5?! [23...Nb6 is more useful as the knight can get to the important c4 square] 24.Rd4! Good defense to offer the exchange back. White will be happy if Black gives up the Dragon bishop and straightens the pawns out. 24...a5 25.Rgd1 [25.g4!] 25...b4 26.Rxc4 Bxc4 27.Nxc5? [27.cxb4 is a simple defense giving White the edge] 27...Qxa2+ 28.Kc1 dxc5 Now the black attack is extremely dangerous with the pawns and queen near the white king 29.Rd8+ Kh7 30.e5 a4 31.cxb4 Bh6?
The simple 31...cxb4 leaves Black with a powerful attack. 32.Rh8+! Siezing the moment! Suddenly White gets a crushing attack. 32...Kxh8 33.Qxh6+ Kg8 34.e6 f6 35.Qxg6+ It's not just the pawn. There is no way out of the mating attack. 35...Kh8 36.Qe8+ Kh7 Black resigns as 37. Qxe7+ Kg8 38. Qf7+ Kh8 39. Bf6 is mate. 1-0
Here are the standings after 2 rounds:
SwissSys Standings. 2021 June Tuesday Night Marathon: 1800
|#||Name||ID||Rating||Rd 1||Rd 2||Rd 3||Rd 4||Rd 5||Total|
|1||FM Kyron Griffith||12860484||2493||W24||W12||H---||2.0|
|2||IM Elliott Winslow||10363365||2278||W20||W15||2.0|
|20||WCM Anika Rajaram||15446678||1860||L2||D18||0.5|
SwissSys Standings. 2021 June Tuesday Night Marathon: u1800
|#||Name||ID||Rating||Rd 1||Rd 2||Rd 3||Rd 4||Rd 5||Total|
|16||Paul Henry Reed||13373197||1322||H---||H---||1.0|
|24||Nick Casares Jr||10424364||1600||L19||D28||0.5|
|27||Simone Pagan Griso||17322263||1098||L12||H---||0.5|
SwissSys Standings. 2021 June Tuesday Night Marathon: Extra games
|#||Name||ID||Rating||Rd 1||Rd 2||Rd 3||Rd 4||Rd 5||Total|
|3||Paul Henry Reed||13373197||1322||D4||0.5|