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Laszlo Szabo vs Vladimir Tukmakov
Buenos Aires (1970), Buenos Aires ARG, rd 9, Aug-01
Gruenfeld Defense: Exchange Variation (D85)  ·  0-1



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sac: 36...Rxd6 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
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Premium Chessgames Member
  al wazir: I got the first two moves. The next 37 were almost routine.

Why didn't black play 53...Re5 ? Why didn't he capture then ♖ after 55. Rxg7+ ?

Nov-17-19  mike1: Great fight and a worthy game of the day. But an insane puzzle? I don't think so. Black has to play
Rxd6 and everything else is not forced
at all.
Nov-17-19  Retireborn: <al wazir> 53...Re5 54.Rxg7+!! Kxg7 55.Rxg6+! is given as drawing by Maric in Informator.

Certainly Black could have played 55...Kxg7, but after 56.Rxg6+ it will lead to the same rook endgame that they had in the game.

Nov-17-19  ndg2: Typical for a Gruenfeld where white doe not want to build a strong pawn center. Black has more or less free hand with his plans to undermine the white pawns. But that doesn't mean it's automatically won. Tukmakov had to fight tremendously
Nov-17-19  Walter Glattke: 44.-Rd2 possibly draw, game should not to be won against stockfish.
Premium Chessgames Member
  An Englishman: Good Evening: My first 7/7 for 2019! But frankly, this seemed easy for a Sunday. Even though it's impossible to see every variation, Black has no choice but to play the first three moves, then notice that the White Knight can't move without allowing a nasty ...Qd5+ in many variations, and finally hope/trust that he can find a way to at least avoid losing during the ensuing complications.
Nov-17-19  stacase: <al wazir: I got the first two moves.>

Me too

<The next 37 were almost routine.>

There were a few "Why'd he do that?" moves in those following 37 but yeah, it seemed pretty much straight forward.

Nov-17-19  7he5haman: Pretty sure White can draw with 49.Qxc3 Bxc3+ 50.Kxc3.

If Black tries 50...Qxh2 then he might be in trouble after 51.Re7+ Kg8 52.Rbxb7

Nov-17-19  ossipossi: I got it, but it was not a winning move!
Nov-17-19  mel gibson: I saw the first move.

Stockfish 10 says that Black is losing slightly:

36... Rxd6

(36. .. Rxd6 (♖d8xd6
e5xd6 ♕c7xd6 ♖d1-d3 f5-f4 g3xf4 ♖f8xf4 ♘c3-e4 ♕d6-f8 ♖e1-f1 ♖f4xf1 ♕c1xf1 ♕f8-d8 ♖d3-d2 ♕d8-d5 ♕f1-d3 ♔g8-h7 ♖d2-f2 a7-a6 b5xa6 b7xa6 ♔g2-g1 ♕d5-e6 ♘e4-g3 ♘d4-b5 ♕d3-e2 ♗g7-e5 ♔g1-g2 ♘b5-d6 ♕e2-f3 ♕e6-c4 ♖f2-d2 ♗e5-f4 ♖d2-e2 ♗f4-g5 a2-a3 h6-h5 ♘g3-e4 ♗g5-e7 ♘e4xd6 ♗e7xd6 ♕f3-e4 ♕c4xe4+ ♖e2xe4 ♗d6xa3 ♖e4-e6) -0.86/40 194)

score for Black -0.86 depth 40.

However at move 43 the score is +7.0 for Black
in the actual game.

Premium Chessgames Member

click for larger view

@Vindivici While 68 Kg1 draws, the subsequent play is far from straightforward.

68 Kg1 Ra1+ 69 Kg2 a4 70 Rxh4 Kc5 (the most testing) and now White must find the Vancura resource 71 Rf4!! a3 72 Rf3 Kb4 73 Rf4+ =

Nov-17-19  Cheapo by the Dozen: I'm glad I spent very little time attempting to "solve" this non-puzzle.
Nov-17-19  alshatranji: I spent a lot of time on 36...Qd7, 37.Bxf8 f5. Crazy I know, but today is "insane", right? Eventually, I found the line had some attacking chances, but nothing at all solid. So I went back to the obvious move. The "solution" is practically forced.
Nov-17-19  Olsonist: First two moves are forced and the rest feel more like a middle game than a problem.
Premium Chessgames Member
  whittaker: Crafty says White is fine after 39 gxf4 Rxf4 40. a4 (+0.49, 2:21).
Premium Chessgames Member
  agb2002: White threatens Bxc6, Rxd4 and Bxf8.

The only option seems to be 36... Rd6 37.exd6 Qxd6 but I've been unable to find anything decisive.

Nov-17-19  RandomVisitor: "The courageous struggle."

- GM Vladimir Tukmakov (when asked what he valued most in chess)

Premium Chessgames Member
  drollere: agreed that 36. .. Rxd6, 37. exd6 Qxd6 were inescapable. but i was intrigued by the continuation after 38. Qe3 f4, 39. gxf4. 39. .. R:f4 opens up the Kside, but 40. Ne4 looks annoying.
Premium Chessgames Member
  kreugerl: If 7he5haman Is correct, and white tries 50 Q x H2, doesn’t simply R x B7ch, king any, R-E8, mate?
Nov-17-19  RandomVisitor: 52...Qa6+ and black is winning
Nov-17-19  RandomVisitor: After 36...Rxd6 37.exd6 Qxd6 white is favored:

click for larger view


<60/105 6:03:11 +0.96 38.Qf4 Qc5 39.Rd3> Kh7 40.Qd2 Rf7 41.a4 a6 42.Rd1 Rc7 43.Qe3 axb5 44.axb5 Re7 45.Qf2 Rc7 46.h4 h5 47.Kh3 Nxb5 48.Qxc5 Rxc5 49.Ne2 Nc3 50.Rc1 Na4 51.Rxc5 Nxc5 52.Rd6 Ne4 53.Rb6 Bf6 54.Nf4 g5 55.hxg5 Nxg5+ 56.Kg2 Ne4 57.Nxh5 Bd4 58.Rxb7+ Kh6 59.Nf4 Bf2 60.Ne2 Bc5 61.Kf3 Bd6 62.Rd7 Kg6 63.Kg2 Kf6 64.Ra7 Be7 65.Kh3 Bc5 66.Ra8 Kg5 67.Rg8+ Kh6 68.Kg2 Bd6 69.Kf3 Ng5+ 70.Ke3 Ne4 71.Nf4 Kh7 72.Rd8 Kh6 73.Rh8+ Kg5 74.Rg8+ Kf6 75.g4 Bc5+ 76.Kd3 Bd6 77.Nh5+ Kf7 78.Rg7+ Ke6 79.Ke3

Nov-17-19  RandomVisitor: 40.Kh1!
Nov-17-19  TheBish: White was slightly better until 42. Nxe2? (42. Ne4!), giving Black just enough of an attack to win.
Nov-18-19  saturn2: Black loses an exchange anyway so 36...Rxd6 37.exd6 Qxd6 does not requre much fantasy.
Nov-23-19  7he5haman: <kreugerl: If 7he5haman Is correct, and white tries 50 Q x H2, doesn’t simply R x B7ch, king any, R-E8, mate?>

Good point!

I thought 49.Qxc3 was a certain draw, but then I saw:

49.Qxc3 Qxh2+ 50.Kd3 Qxg3+ 51.Re3 Qd6+ 52.Kc2 Bxc3 53.Rxc3


49.Qxc3 Qxh2+ 50.Kd3 Bxc3 51.Kxc3 Qxg3+ 52.Kc2

which look better for Black, but I can't tell whether it's still a draw.

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