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Michael Barron vs Hoang Thong Tu
"Tu Can Play That Game" (game of the day Aug-03-2019)
Canadian Open (2007), Ottawa Canada, rd 1, Jul-07
Sicilian Defense: Boleslavsky Variation (B59)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
Mar-08-08  MikeZaghi: Interesting game, espeacially how the black king ends up on g3 by the end of the game. Apparantly 35. Rg8 was a major mistake by white even though at first glance it appears to put blacks king is in a tough position - unfortunatly for white there was no checkmate opportunities.
Mar-22-10  DiscoJew: black possibly calculated 10 ply to realize he is not mated and ends up skewering the White queen. Bravo indeed.
Aug-03-19
Premium Chessgames Member
  Pyrandus: "Black is Winner" (A. AdorjŠn)
Aug-03-19  Ironmanth: Way cool game! Nifty tactical stuff. Jeez, showing my age with old adages!
Aug-03-19
Premium Chessgames Member
  fredthebear: 25.BxNe5?! dxBe5 surely cannot be correct, relieving Black of his backward pawn on the half-open d-file. All Black's pieces came into play thereafter. Nice backdoor action on the finish, one queen to another.
Aug-03-19
Premium Chessgames Member
  Sargon: <MikeZaghi: Interesting game, [especially] how the black king ends up on g3 by the end of the game. [Apparently] 35. Rg8 was a major mistake by white even though at first glance it appears to put [Blackís] king [in] a tough position [...]>

Daniel Freeman (and Alberto A Artidiello) used to tell me that this is known as ďa fair windĒ, which actually <helps> the king improve his position.

In the case of Blackís king, it began a journey which culminated in an offensive role that was pivotal in winning the game.

I canít recall whether this figure of speech applies specifically to the king, or generally to any piece in the same situation. I believe itís typically used in reference to the king...

Aug-03-19
Premium Chessgames Member
  Breunor: As fredthe bear said, computer doesn't favor 25 Bxe5, preferring instead:

1) +0.24 (18 ply) 25.Re2 Rec8 26.Be1 Rxc2 27.Nxc2 Nxc2 28.Rf2 Qd8 29.Be2 Nxe1 30.Qxe1 Qh4 31.Bf3 Be7 32.Ra2 Qxe1+ 33.Rxe1 b6 34.Bd1 Nd3 35.Rf1 Rc3 36.g3

After the game move, we have:

1) -1.37 (23 ply) 25...dxe5 26.Ne2 Bc5 27.Qf1 Rxc2 28.Rd7 b6 29.Bh5 Qxf1+ 30.Rxf1 g6 31.Rfxf7 Be7 32.Rfxe7 Rxe7 33.Rxe7 gxh5 34.Ng1 Nd3 35.h3 Rc5 36.Nf3 Rxb5 37.Nd2 h4 38.Kh2 Nc1 39.Nf3 Nxb3 40.Nxh4 Rb4 41.Re8+ Kf7 42.Rxe5 a4

so we see that is where white starts falling behind.

However, white subsequently equalizes; the computer drops to only -0.6 after black plays the obvious looking 26 Rxc2

1) -0.60 (22 ply) 27.Rxc2 Nxc2 28.Be2 b6 29.Qf1 Bc5 30.Bc4 Rf8 31.g3 Kh8 32.Rd7 Qg5 33.Qe2 Na3 34.Nd6 Nxc4 35.Qxc4 Bxd6 36.Rxd6 Qe3 37.Kg2 g6 38.Rd7

Subsequently, the game is even after 29 Re6:

1) -0.04 (20 ply) 30.Rd1 Kg7 31.Rxb7 Rd6 32.Rf1 Nd3 33.g3 Rc1 34.Be2 Nf2+ 35.Kg2 Rxf1 36.Qxf1 Nxe4 37.Qxf6+ Kxf6 38.Ra7 Rd2 39.Kf3 Nd6 40.Ra6 Ke7 41.Ra7+ Kd8 42.Bc4 a4 43.Rxa4 Kc7 44.Ra6 Rxh2 45.Ra7+ Kb8

But the computer thinks white went back down with 31 Rd8ch:

1) -1.37 (19 ply) 31...Kg7 32.Qa7 Rec7 33.Qxa5 Rc1 34.Qa8 Rxd1+ 35.Rxd1 Nc2 36.Qd8 Qxd8 37.Rxd8 Rc3 38.b4 Rb3 39.Kg1 Nxb4 40.Bd1 Re3 41.Rd7 Rxe4 42.Kf2 Rf4+ 43.Kg3

Better (although still down) was

1) -0.82 (23 ply) 31.R7d6 Qf4 32.Rf1 Rc3 33.Be2 Qe3 34.Rf3 Qxg1+ 35.Kxg1 Rc1+ 36.Rf1 Rc2 37.Rf2 Kg7 38.Bc4 Rc3 39.Rf3 Rxf3 40.gxf3 Kh6 41.Kf2 Kg5 42.Kg3 Nc2 43.b6 Ne3 44.Bd5 f5 45.Rd8

Another error seems to be white's 31st move, Rf1:

1) -2.17 (25 ply) 33...Rec7 34.Rdd1 b6 35.Qb8 Rc8 36.Qd6 Qxd6 37.Rxd6 Nc2 38.h4 Rxb3 39.Rxb6 Ne3 40.Ra1 Rc5 41.Ra6 Rbxb5 42.Kh2 Nc2 43.Rc1 Nb4 44.Rxc5 Rxc5 45.Ra7 Nc6 46.Ra6 Nd4 47.Kg3 h5 48.Ra7 Kf6 49.Ra6+ Ke7 50.Ra7+ Ke8 51.Bd1

Instead, white is OK after Be2:

1) -0.31 (24 ply) 33.Be2 Rc2 34.Bc4 Qf2 35.Qxf2 Rxf2 36.R1d7 Rxd7 37.Rxd7 b6 38.Kg1 Rf6 39.Rc7 Kf8 40.g3 Na2 41.Bd5 h6 42.Rc6 Kg7 43.Rc7 g5 44.Bc4 g4 45.Be2 h5 46.Bc4 Rf3 47.Re7 Nc3 48.Rxe5

I think the idea of Bc2 is then to play
Bc4! This closes the black power on the C file and protects the intrusive white pawns on the queenside.

White errs again with 33 Rf1

1) -2.17 (25 ply) 33...Rec7 34.Rdd1 b6 35.Qb8 Rc8 36.Qd6 Qxd6 37.Rxd6 Nc2 38.h4 Rxb3 39.Rxb6 Ne3 40.Ra1 Rc5 41.Ra6 Rbxb5 42.Kh2 Nc2 43.Rc1 Nb4 44.Rxc5 Rxc5 45.Ra7 Nc6 46.Ra6 Nd4 47.Kg3 h5 48.Ra7 Kf6 49.Ra6+ Ke7 50.Ra7+ Ke8 51.Bd1

again needing to play Be2 - c4.

Its totally hopeless after 35 Rg8ch although nothing he can play gets above -2.

1) mate-in-17 (36 ply) 35...Kh6 36.Qf8+ Kg5 37.h4+ Kf4 38.Qh6+ Kg3 39.Rxc1 Rxc1+ 40.Qxc1 Qxh4+ 41.Kg1 Qh2+ 42.Kf1 Qh1+ 43.Ke2 Qxc1 44.Rd8 Nc2 45.b6 Qe1+ 46.Kd3 Nb4+ 47.Kc4 Qc1+ 48.Kb5 Qc6+ 49.Kxa5 Qc5+ 50.Ka4 Nc6 51.Rc8 Qa5#

Aug-03-19  cormier:


click for larger view

Analysis by Houdini 4 <d 21 dpa

1. + / = (0.41): 18...Nxc2> 19.Rxc2 Bxa4 20.Na1 Bxc2 21.Nxc2 b5 22.Ne3 Qc5 23.Ned5 Qxg1+ 24.Kxg1 Nxd5 25.Nxd5 Rc2 26.Rb1 b4 27.Ne3 Rc5 28.b3 Rc3 29.Nd5 Rc2 30.Bg4 Ra2 31.Bf5 Rb8 32.Bd7 Rd8 33.Ba4 Rc8 34.Rd1 Rcc2

2. + / = (0.47): 18...Nd7 19.Nd4 Ne5 20.Be2 Qe7 21.Qf2 Qf6 22.Rf1 Ng6 23.Be3 Qxf2 24.Bxf2 Ne5 25.Nb3 Nxc2 26.Nxa5 Nb4 27.Nxc6 bxc6 28.Bb6 Ra8 29.Kg1 Re6 30.a5 Be7 31.Rd4 Nc2 32.Rdd1 Bg5

Aug-03-19  cormier:


click for larger view

Analysis by Houdini 4 d 22 dpa done

1. = (0.16): 15...exf4 16.Bxf4 Nc6 17.Bxd6 Bxd6 18.Rxd6 Ne5 19.Rd4 Qc7 20.Be2 Re7 21.h3 Nc6 22.Rd2 Qe5 23.Bf3 Nb4 24.Rc1 Rce8 25.Rd6 Bc6 26.Qd4 Nxe4 27.Qxe5 Rxe5 28.Nxe4 Bxe4 29.Bxe4 Rxe4 30.Nxa5

2. + / = (0.29): 15...Qc7 16.Qg1 Be6 17.Bb6 Qb8 18.Ba7 Qc7 19.f5 Bxb3 20.cxb3 d5 21.exd5 e4 22.d6 Qd7 23.Be2 Qxf5 24.Rad1 Qd7 25.Bb6 Re6 26.Bxa5 e3 27.Bxb4 exd2 28.Rxd2 Ne4 29.Nxe4 Rxe4 30.Ba3 h6 31.Bb5 Qd8 32.Bd3 Re5

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