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Vasily Smyslov vs Tigran Petrosian
Moscow (1971), Moscow URS, rd 5, Nov-29
Queen's Gambit Declined: Hastings Variation (D30)  ·  1-0

8
7
6
5
4
3
2
a
1
b
c
d
e
f
g
h
White to move.
ANALYSIS [x]
Notes by Stockfish 9 v010218 (minimum 6s/ply)11.Bc2 was played in Aronian vs Leko, 2014 (1-0)better is 12...c5 13.d5 exd5 14.cxd5 Nf6 15.Rac1 Nxe4 16.Bxe4 Bd6 = 0.00 (28 ply) ⩲ +0.66 (26 ply) 15...b6 16.Ne5 f6 17.Nc4 Rb8 18.Qa3 b5 19.Ncd6 f5 20.Nxc8 = +0.29 (23 ply) ⩲ +1.07 (25 ply)better is 18.a3 b4 19.axb4 Rab8 20.Nf5 Bf6 21.Nd6 Rxd6 22.cxd6 ⩲ +1.18 (24 ply) ⩲ +0.64 (24 ply) 19.h4 a4 20.Ne2 f5 21.Nf4 Bf7 22.g3 Bf6 23.Ne5 Be8 ⩲ +1.23 (24 ply)better is 19...a4 20.Nh5 f6 21.Nf4 Bf7 22.Nd3 Ng6 23.g3 Re8 24.h4 = +0.47 (25 ply) ⩲ +1.09 (24 ply) after 20.Ne2 f6 21.h4 a4 22.Nf4 Bf7 23.g3 Re8 24.h5 f5 25.Ng6 better is 20...f6 21.Ne2 a4 22.Nf4 Bf7 23.h5 f5 24.g3 Qc8 25.Bb1 ⩲ +0.80 (27 ply) 21.Nh5 f5 22.Nf4 Bf6 23.Nxe6 Re7 24.Bb3 Nxe6 25.Bxe6+ ⩲ +1.31 (24 ply)= +0.15 (25 ply) after 21...f5 22.Ne5 Qc7 23.Bb3 Kh8 24.Nd3 Bh4 25.Nf4 Bf7 better is 24...axb4 25.axb4 Ra3 26.Re3 Qa8 27.Qb1 Bd8 28.Nh4 f5 ⩲ +0.60 (26 ply) 25.Nh4 axb4 26.Nhf5 Bd8 27.Nd6 bxa3 28.Nxe8 Bxe8 ⩲ +1.15 (25 ply)better is 25...Qd7 26.Nh4 Bd8 27.Ng6 Bc7 28.Nf1 Bxg6 29.hxg6 Re7 = +0.13 (28 ply) ⩲ +0.64 (25 ply) 29...Bxg6 30.hxg6 Bxg3 31.Rxg3 Rae7 32.Re3 Qf4 33.Qe2 ⩲ +0.51 (30 ply) 30.Nxf5 Bh2+ 31.Kh1 exf5 32.Rxe8 Qxe8 33.Kxh2 Nxg6 ± +2.46 (30 ply) ⩲ +0.65 (27 ply) after 30...Bxg6 31.hxg6 Kh8 32.Rde1 Bf4 33.R3e2 Rae7 34.d5 better is 35...Bf4 36.g3 Bb8 37.Nh2 Rae7 38.Nf3 Nd7 39.Ng5 Nf6 ⩲ +0.99 (25 ply) ± +1.63 (27 ply) 37...Bf4 38.Ne5 Bxe5 39.dxe5 Qg5 40.Qxg5 hxg5 41.Rd6 Rc7 ± +1.80 (28 ply)+- +2.65 (26 ply) 41...Nd7 42.Nf7 Nf8 43.Nxd8 Qxd8 44.Be4 Qc8 45.Qg4 fxg3 +- +2.67 (23 ply); 42.Be4 fxg3 43.fxg3 Qe7 44.Qf3 Qf6 45.Qe2 Qe7 46.Rf1 Bf6 +- +3.87 (27 ply)1-0

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
FEN COPIED

Annotations by Stockfish (Computer).      [35434 more games annotated by Stockfish]

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Kibitzer's Corner
May-20-04  Owl: Why does Pet resign. Wheres the win for Smylov???
May-20-04  crafty: 42. ♗e4 ♔h8 43. ♕h1 ♘d7 44. ♗xc6 fxg3 45. fxg3   (eval 2.13; depth 16 ply; 1000M nodes)
May-20-04  chessdr: The best I can come up with is that after 42. Be4 white will trade B and N for R and c6 pawn. The point is that it is a critical pawn (unlike white's g6 pawn), and a GM should be able to win the game with the c5 pawn.

In fact, it looks like black also loses the b5 pawn, e.g. 42. Be4 Nd7, 43. Nxc6 Rxc6, 44. Bxc6 Rxc6, 45.Qe2. If 42. ... Qd7 (to try to get the Q to b7 to save the b5 pawn), then 43. Nxc6 Rxc6, 44. Bxc6 Rxc6, 45. d5. Maybe best is 42. ... Qe8, 43. Nxc6 Rxc6, 44. Bxc6 Rxc6, so that after 45. Qe2 Qb8; but after 45. d5 exd5, 46. Qf3 white looks comfortable.

Anyway, I'm with you, I would have played on.

May-23-04  Ivax: Maybe petrosian lost because of time??
Mar-25-09
Premium Chessgames Member
  Chessical: A thoroughly depressing position especially after <42.Be4>, but surely not yet hopelessly lost?

Earlier, <36... Rd7> 37. Nf3 Bf6 38. Bb1 Ree7; seems a more flexible arrangement for the defence.

Mar-25-09  Eisenheim: the finesse with the delayed capture on g6 blossoms into a tactical nightmare for pet.
Jan-03-16
Premium Chessgames Member
  Penguincw: Petrosian's only loss of the tournament. He went 10/17 (+4,-1,=12), tied Tukmakov for 4th. Also the highest score for a non-undefeated player.
Sep-30-16  ewan14: in my very humble opinion
Petrosian does not play the opening that well

Strange , did he want to take risks to beat Smyslov ?

who had a plus score against him

Dec-07-18  Nerwal: 15... b5 is very strange (15... b6 or 15... ♗d7 look normal). Now it's easy to say it, because engines show that ♘e5-c4-d6 doesn't really improve White's position.
Jul-13-22
Premium Chessgames Member
  Honza Cervenka: The game was probably adjourned at this point, and Petrosian concluded during analysis that his position is hopeless. Immediate 42.Be4 is not the only option of white.
Jul-13-22  sudoplatov: The local Stockfish indicates the Be4, now or later leaves White up 6+ points.

Smyslov seems to creep up on Petrosian in a tiger-like manner.

Jul-13-22  sudoplatov: It seems that 35.Qd8 is the big slip.
Jun-08-23  jphamlore: <Honza Cervenka: The game was probably adjourned at this point, and Petrosian concluded during analysis that his position is hopeless. Immediate 42.Be4 is not the only option of white.>

Indeed Smyslov in his Smyslov's Best Games Volume ii verifies that Petrosian resigned after adjournment and before play resumed. Smyslov writes

<His pieces are passively placed and White is threatening a decisive attack with ♖e4 and ♖d3-f3.>

Mar-17-25  Breyannis Nektarios: Interesting that Smyslov was ready to enter the Botvinnik variation. Maybe he didn't really thought that Petrosian would follow suit.

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