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Jan Hein Donner vs Robert James Fischer
Second Piatigorsky Cup (1966), Santa Monica, CA USA, rd 13, Aug-07
King's Indian Defense: Fianchetto Variation. Classical Fianchetto (E67)  ·  0-1

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Kibitzer's Corner
Oct-13-03  Kenkaku: This one should be attributed to Bobby Fischer.
Nov-14-04  kostich in time: Donner was the weakest player at Santa Monica, but he was still adecent Grandmaster...Fischer makes him look like a class C player...he played VERY well in the second half of Piatigorsky Cup...six wins and three draws..three of the wins came with black
May-02-09  ozmikey: You know you're in trouble when you have to play a move like 19. Rb3. Beautifully logical and powerful game from Fischer.
Feb-28-10  Garech: I agree with the above, a brilliant game from Fischer. The fianchetto variation is a bit disheartening to the King's Indian Defence player as the traditional counter-attack with f5 etc is not advisable. However, the weakness with fianchetto systems for white is the c4 square, and this was a virtuoso display not only of exploiting that but also of how to build positional pressure and turn it into a decisive breakthrough - great game!
Feb-28-10  notyetagm: J H Donner vs Fischer, 1966

10 b2-b4? (Fischer)


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16 ... ♘e5-c4


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<Garech: I agree with the above, a brilliant game from Fischer. The fianchetto variation is a bit disheartening to the King's Indian Defence player as the traditional counter-attack with f5 etc is not advisable. <<<However, the weakness with fianchetto systems for white is the c4 square>>>, and this was a virtuoso display not only of exploiting that but also of how to build positional pressure and turn it into a decisive breakthrough - great game!>

Now I understand Fischer's comment, that 10 b2-b4? was a *bad* move.

In the KID, often the White light-squared bishop is on the e2-square, covering c4. But in the Fianchetto System, it is on g2 where it does *not* cover c4.

<Fischer is saying that 10 b2-b4? is bad because <IN CONJUCTION WITH> the fianchettoed g2-bishop, it makes the c4-square too weak. <<<After 1 d2-d4, 4 ♗f1-g2, and 10 b2-b4?, who is left to <PROTECT> the valuable c4-square?>>>>

Feb-28-10  notyetagm: Game Collection: Every time you push a pawn it weakens squares

J H Donner vs Fischer, 1966 10 b2-b4? does not work with 4 Bf1-g2, weakening c4-sq too much

Jun-16-12  rjsolcruz: Castro vs Forcado in Meralco's Father's Day Cup 2012 followed this opening variation;

http://meralcochess.blogspot.com/20...

Jan-25-14  parisattack: <Garech: I agree with the above, a brilliant game from Fischer. The fianchetto variation is a bit disheartening to the King's Indian Defence player as the traditional counter-attack with f5 etc is not advisable. However, the weakness with fianchetto systems for white is the c4 square, and this was a virtuoso display not only of exploiting that but also of how to build positional pressure and turn it into a decisive breakthrough - great game!>

Indeed! Simply elegant how Fischer exploits the c4-weakness. Every Russian schoolboy knows c4 is weak in the fianchetto KI, but how many can exploit it so well and quickly? (Of course 10. b4 certainly aided black's efforts.)

Dec-30-14
Premium Chessgames Member
  zydeco: Donner played 9.Rb1 and 10.b4 against Najdorf earlier in the tournament. That line turned out badly for Donner (the problem is that c4 becomes very weak), but he was narrowly able to draw. Donner repeats the line and finds that Fischer is superbly prepared for it.

Donner suggests 19.Nd5 instead of 19.Rb3, but already black is rolling up white's center.

Sep-18-19  Ulhumbrus: After 23 Rxe3 White's N on c3 is pinned to his bishop on c1. His e4 pawn is therefore defended really only three times and therefore insufficiently.
Sep-18-19
Premium Chessgames Member
  WorstPlayerEver: Donner throws all his pawns up in the air. But 16. f4 is a terrible positional blunder.

16. Bg5 was needed, although Fischer still has a strong initiative after moves like 10. b4 and 12. h3

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