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Vasily Smyslov vs David Bronstein
Budapest Candidates (1950), Budapest HUN, rd 2, Apr-12
Semi-Slav Defense: Botvinnik System. Lilienthal Variation (D44)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Sep-01-05  Resignation Trap: From Botvinnik's notebook of Bronstein's games: " 1.d4 d5 2.c4 c6. Then transposition into Scheltinga. Instead of ...Qa5 or ...Qb6 (in Lili's variation g3) 'Br' played 12...Rg8. Generally speaking, reached unclear and not bad position, but evident that he had not analysed it beforehand. Was dreaming only about the endgame - since overlooked possibility of an attack (23...Bxf2). In the endgame (slightly worse!) played passively and adjourned in a lost position. Weak - perhaps he doesn't understand such positions?"
Dec-13-05  suenteus po 147: Another candidate for <refutor>'s Game Collection: D44! perhaps?
Dec-13-05  aw1988: <since overlooked possibility of an attack (23...Bxf2).>

This seems to expose the king greatly.

Dec-14-05
Premium Chessgames Member
  beatgiant: Yes, <23...Bxf2> looks winning.

If White takes, then 23...Bxf2 24. Nxf2 Qxg3 25. Nh3 Rxh3 26. Bxh3 Qxh3 27. Re2 Rg8 etc. and White is helpless.

If White declines, then we'd see something like 23...Bxf2 24. Re2 Rd4 25. Qc2 Bxg3 26. h3 but White's kingside is weakened and Black's a pawn up.

Dec-07-08  Everett: 23...Bxf2 is a strange oversight by Bronstein at this point in his career. I like Botvinnik's "reached unclear and not bad position, but evident that he had not analysed it beforehand." Of course! It's Bronstein!

Thank's <Resignation Trap> for the quotes from Botvinnik's notes on Bronstein.

Apr-23-12
Premium Chessgames Member
  zydeco: After 23...Bxf2 24.Nxf2 Qxg3, white can play 25.Ng4, then if 25....Rdg8, white plays 26.Bxc6 Rxg4 27.Bxb7. If 27...Kxb7, white forces perpetual check or else trades queens into an equal endgame. If 27...Kb8, white plays 28.Qc8+! Rxc8 29.hxg3 Kxb7 and it looks like white's slighty worse in the endgame but should be able to hold.
May-15-12  Everett: <zydeco> Nice line with the 25.Ng4 defense. Certainly, 23..Bxf2 was the best move for the position. As played, Smyslov was able to exchange queens and convert his pawn advantage.
Aug-14-12  DrGridlock: Black's choice at move 22 is certainly the decisive point in the game. Others have pointed out a preference for 22 ... Bxf2. Komodo agrees:


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23...Bxf2 24.Nxf2 Qxg3 25.Ng4 Rdg8 26.Bxc6 Rxg4 27.Bxb7+ Kb8 28.Qc8+ Rxc8 29.hxg3 Kxb7 30.Ra3 Rc2 31.Rf3 Rg7 32.b3 Rh7+ 33.Kg1 Kb6 34.Rd1 Kc7 35.Rfd3 Rhh2 36.Rd7+ Kc6 37.Rxf7 Rcg2+ 38.Kf1 Rxg3 39.Rc1+ (-0.32) Depth: 24 00:20:37 364323kN

What's surprising is the magnitude of Bronstein's mistake. Komodo doesn't rank Qh5 in the top 10 of black's options (scoring it at a .99 advantage for White), and rates Bxf2 as the only move which gives an advantage to black.

After 23 ...Bxf2 there are two options for white at move 24:

1. (-0.30): 24.Nxf2 Qxg3 25.Ng4 Rdg8 26.Bxc6 Rxg4 27.Bxb7+ Kb8 28.Qc8+ Rxc8 29.hxg3 Kxb7 30.Ra3 Rc2 31.Rf3 Rc7 32.b3 Rd4 33.Kg2 Kb6 34.Re2 Rd6 35.Rf4 Rcd7 36.b4 Rd2 37.Rxd2 Rxd2+ 38.Kf3 axb4 39.Rxb4+ Ka5

2. (-0.46): 24.Re2 Bb6 25.Rae1 f5 26.Nd2 Qxg3 27.Nf1 Qg8 28.Rxe6 Rh6 29.Qe2 Rxe6 30.Qxe6+ Qxe6 31.Rxe6 Kc7 32.Rf6 Bd4 33.Rxf5 Bxb2 34.Rxa5 Rd4 35.Re5 Rxa4 36.Re7+ Kb6 37.Bf3 Bd4 38.Re6 Ra1 39.Kg2 Ra2+

Komodo prefers Nxf2 to Re2 for white, and agrees with zydeco's line. White should be able to hold, but it's black who has the advantage and winning chances in the end-game.

Aug-14-12  Pirandus: Who is Komodo?
Aug-14-12
Premium Chessgames Member
  TheFocus: GM Dragon Komodo of Ecuador.
Aug-14-12  DrGridlock: <Pirandus>
Komodo is a chess search engine.
Latest ratings give it an ELO rating of 3216.
Aug-14-12
Premium Chessgames Member
  TheFocus: OK, disregard my joke post above.
Oct-27-12
Premium Chessgames Member
  perfidious: < DrGridlock: ....Komodo is a chess search engine. Latest ratings give it an ELO rating of 3216.>

Komodo is yet another device which enables certain kibitzers to play Monday morning quarterback and tell us how poorly strong GMs played.

Apr-19-14
Premium Chessgames Member
  WCC Editing Project:

This game was played at the Budapest Candidates (1950) (9 April - 16 May).

<Smyslov> finished third, behind Bronstein and Boleslavsky, ahead of Keres, Najdorf, Kotov, and Stahlberg, scoring +5 -3 =10.

################

<Sources>

"The Chess Library http://thechesslibrary.com/files/19....

Winter, Edward ed. "World Chess Champions" (Pergamon Press 1981), p.149

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