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Bent Larsen vs Paul Keres
San Antonio (1972), San Antonio, TX USA, rd 5, Nov-24
English Opening: Agincourt Defense (D40)  ·  0-1

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)better is 18...Qe6 19.b5 Na5 20.Bc3 Nc4 21.Rxd5 Rac8 22.Qd4 f6 = +0.28 (25 ply) ⩲ +0.80 (27 ply) after 19.Bc3 axb4 20.Rxd5 Qe6 21.axb4 Nxb4 22.Bxb4 Qe4+ 23.Kg1 better is 20...Qe6 21.b5 Ne5 22.Rxd5 b6 23.Bb4 Nc4 24.e3 Qe4+ = +0.41 (28 ply)better is 21.f4 Rh5 22.Kg1 Qh3 23.e3 Rc8 24.Rff2 Re8 25.g4 Rh4 ⩲ +1.03 (25 ply)= +0.38 (28 ply)better is 45.fxg6 fxg6 46.Qe4 Kg7 47.Qe7+ Kg8 48.Qe3 Qd5+ 49.Kh2 ⩲ +0.67 (42 ply)= 0.00 (50 ply) after 45...Qd6 46.Qe7 Qc6+ 47.Kh2 Qe6 48.Qd8+ Kh7 49.Qd4 Qc6 59.Kh3 Qh1+ 60.Kg3 Qg1+ 61.Kh3 = 0.00 (48 ply) ⩱ -0.77 (32 ply) 60.Ke3 Qxh4 61.Qd4 Qg5+ 62.Kf2 hxg4 63.Qc4 Qxf6 64.Qxg4 ⩱ -0.51 (35 ply)-+ -3.36 (38 ply)-+ mate-in-3792.Qb2+ Kg1 93.Qg7 g3 94.Qg4 Kf1 95.Qg5 Qd4+ 96.Kc2 g2 -+ mate-in-150-1

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

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Given 15 times; par: 172 [what's this?]

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Kibitzer's Corner
Feb-18-05  Poulsen: Larsen at his worst - in the years, where his instability became evident for everyone.

Here he is pressing on for a win - but ends up losing against one of those players he never really got a hold of - despite advantage in age.

Feb-18-05  euripides: <Poulsen> Interesting, and quite painful to watch. After 60 Kg5 alarm bells should be going off in White's mind even before he sees a concrete threat. In those days the time limits were typically at 40 and 56 moves, but move 60 might well have been in the second session if it overran or if it went on to move 72. Keres the gentleman probably felt quite bad about this - like the game Tal won from Spassky in the Soviet championship in 1958 that set Spassky back some years.
Feb-18-05  WMD: <Keres the gentleman probably felt quite bad about this> Off-stage, I reckon he was laughing his head off.
Feb-18-05  euripides: <WMD> On reflection I have to agree he may have got over the angst reasonably quickly.
Jan-09-08  ughaibu: No comment on here, re Fischer, by RookFile, then?
Jan-09-08  Riverbeast: Sometimes I think the most dangerous situation to be in, in chess, is having a slight advantage but it's not enough to win....Many times it seems, something like this happens...the side with the 'advantage' doesn't want to give draw, so he presses too hard and loses
Jan-09-08  docofthree: i agree with riverbeast if larsen can't force a trade of queens he should have accepted a draw.
Jan-09-08  RookFile: If Larsen had just played 45. fxg6, he has a can't lose advantage.
Feb-07-08  Autoreparaturwerkbau: How about simple 48.Qf3 instead of 48.f3?
Feb-07-08  Riverbeast: <If Larsen had just played 45. fxg6, he has a can't lose advantage.>

Yes but it still looks like a theoretical draw: 3 on 2, in a queen (or rook) ending is practically impossible to win unless the stronger side has some positional advantages.

Larsen should have known that. Maybe his tournament standing compelled him to play it out.

Jun-06-08  zev22407: Larsen was leading tournament at that point
Jun-19-15  Howard: Strange, but Larsen never beat Keres during their 6-7 encounters.
Jan-09-16  cunctatorg: At 1972, Larsen's moral (for well known reasons) was down and perhaps his play had become unstable...
Jan-09-16
Premium Chessgames Member
  perfidious: <cunctatorg: At 1972, Larsen's moral (sic) (for well known reasons) was down....>

Larsen carried on in the same enterprising fashion after his loss to Fischer as before, but it did not always produce results to his liking, even when the Dane was on top form, and overall, he was never able to return to his peak of 1967-1970.

<....and perhaps his play had become unstable...>

Same as Bogoljubov, Larsen's optimism enabled him to press for victory in games other top players would give up as draws, but that trait could cost, too.

Jan-09-16  RookFile: Keres was terrific in the endgame. I found Keres' book on endings to be well written and easy to understand.
Jul-11-16
Premium Chessgames Member
  offramp: At the end of this game the black pawns advance very quickly.


click for larger view

80...g5. Then a bit later, 86...f5.


click for larger view

Then right at the end, 89...f4


click for larger view

.

It's sad how Larsen lost those 4 kingside pawns so quickly.

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