In the following game from the US vs. Sweden match in the Final A group the dominant factor was Reshevsky’s control of the e-file. Playing black, Reshevsky opened with the Benoni Defense which morphed into a King's Indian.
Udderfeldt failed to get anything out of the opening and Reshevsky hit on an idea on move 14 that he said seemed to surprise Udderfeldt who then made what Reshevsky called a “peculiar reply.”
Reshevsky gained control of the e-file and the game was practically over as the activity of his pieces kept increasing until his opponent was reduced to complete passivity.
It was a fine demonstration of putting the squeeze on an opponent, but a careful examination shows that it wasn’t the positional rout Reshevsky’s notes suggested. Udderfeldt missed some better defenses, but the game demonstrates the difficulty of defending a position with no real hope of counterplay. All that said, I consider the game was still a positional masterpiece by Reshevsky.
Dan Uddenfeldt (born in 1951),is a Swedish master who was one of the leading players in Sweden in the 1970s when he participated in several international junior championships.
[Event "Nice Olympiad Final-A"]
[Site ""]
[Date "1974.06.19"]
[Round "?"]
[White "Dan Uddenfeldt"]
[Black "Samuel Reshevsky"]
[Result "0-1"]
[ECO "A57"]
[Annotator "Reshevsky/Stockfish 17.1"]
[PlyCount "96"]
[EventDate "1974.06.16"]
{King's Indian Defense} 1. d4 Nf6 2. c4 c5 {A flexible move that can lead to
numerous transpositional possibilities.} 3. d5 (3. g4 {is an ineresting
possibility that has been untested. Probably for good reason though because
black gets the better game after} cxd4 4. g5 Ne4 5. Qxd4 Qa5+ 6. Bd2 Nxd2 7.
Qxd2 Qxd2+ 8. Kxd2 {Black is better. Djordjevic,V (2382)-Postnikov,D (2360)
chess.com INT 2022}) 3... d6 4. Nc3 g6 5. e4 {White hopes to use his space
advantage to attack on the K-side while black will try to undermine white's
center and/or counterattack on the Q-side.} Bg7 6. h3 {More frequently seen
are 6.Nf3 or 6.Bd3, but the rather passive text move is not bad.} O-O 7. Bg5 e6
8. Bd3 exd5 9. exd5 {White can capture with either P depending on what type of
game he wants to play. 9.exd5 leads to a positional type of game. Capturing 9.
dxe5 leads to a complicated and tactical game.} Re8+ 10. Nge2 h6 11. Be3 Nbd7
12. Bc2 {The purpose of this somewhat odd move is to avois having to surrender
the B for a N if black plays ...Ne5, but t could have been delayed a move. 12.
Ng3 Ne5 and now 13.Be2} a6 {This prevents Nb5 and prepares expansion on the
Q-side with ...b5} 13. a4 Ne5 14. b3 {Engines now suggest black play something
benign lile 14...Nh5, but Reshevsky hits on a suprising idea that works out
much better than it should have!} Bf5 {The idea is to activate the B. White
can saddle black with weak doubled Ps, but Reshevsky didn't mind because he
could them post his N one4 where it would put "tell ing pressure in the center
and on the K-side." Interesting insight into the mind of a GN!} 15. Ra2 {
Apparently the young player does not want to challenge the wily Reshevsky, but
this move is hard to explain because it just leaves the R out of play. .} (15.
Bxf5 {This, of course, is logical and the test of Reshevsky's reasoning.} gxf5
16. Qc2 Ne4 17. Nxe4 fxe4 {The N has disappeared and its place taked by a P
that will support a N on d3. For example...} 18. O-O Nd3 19. Rad1 Qh4 {with
about equal chances.}) 15... Bxc2 16. Qxc2 Nh5 17. O-O f5 {This move is a
major part of Reshevsky.'s strategy to contro; e4 so he can occupy it with a N.
} 18. Qd2 Kh7 19. Nd1 {White has a position that holds no promise of achieving
anything positive, but that's not to say that he is lost. While his position
is difficult and black does have the better prospects, this backward waiting
move is of little promise.} (19. Nf4 {aimimg at e6 and so forcing the exchange
of Ns would jeep things fairly even.} Nxf4 20. Bxf4 Qf6 {and black can claim
no advantage.} (20... g5 21. Bxe5 {and there is no lonfer any way for black to
conjure up an attack so the position is quite equal.})) 19... Qe7 20. a5 Rf8 {
This surprising move is instructive. It's part of his plan to double Rs on the
e-file! It makes it possible to get the other R on the e-file. How he doubles
his Rs is instructive to watch.} 21. f4 {The idea of this move is to stop any
possible advance of black's f-Pawn. Reshevsky was critical of it, but it's
actually not a bad move at all even if the weakness it creates on g3 will play
a part in the future.} Nd7 {Repositioning the N.} 22. Qd3 Ndf6 23. Nf2 Rae8 24.
Bc1 Ne4 {As previously mentioned, he has gotten a N on e4. At this point
Reshevsky was positive that he was winning, Technically that's not true, but
practically he has good winning chances if for no other reason than white's
position is very passive and it won't take much to tip the scales completely
in blac;s favor.} 25. Bb2 {Another less than optimal decision. Udderfeldt
wants to exchange as many pieces as possible in order to ease the pressure,
but this allows Reshevsky to maintain the N on e4 and, as a result his
advantage becomes very real. After 25.Nxe4 white would have real hopes of
neutralozong the pressure on the e-file.} Nhf6 26. Nd1 {Part of his plan to
engage in multiple exchanges.} (26. Nxe4 {This is his best try as it keeps
black's advantage at a size white may be able to deal with.} Qxe4 27. Qxe4 Rxe4
(27... Nxe4 28. Bxg7 Kxg7 29. Rf3 {is equal because white can cover all his
weaknesses.}) 28. Bxf6 Bxf6 29. g3 Rfe8 30. Kf2 {leaves black with a
dominating position.} (30. Re1 Re3 {wins})) 26... Rf7 27. Ba1 Qd8 28. Nec3 Rfe7
{Now he has control of the e-file and a N on e4, but now he must figure out a
way to use his advantage. ..} 29. Rf3 (29. Nxe4 Rxe4 {It is essential to keep
control of the e-file.} (29... Nxe4 30. Bxg7 Kxg7 31. Nc3 Nxc3 32. Qxc3+ {
is equal}) 30. Qd2 Qe7 31. Nf2 Re3 {with a dominating posirion. In Shootouts
white scored )= -3 =2.}) 29... h5 {This move is part of his new plan...to
continue with ...h4 giving him contril of g3 so he can place his N there.} 30.
Rf1 {At this point white is helpless to do much at all except shift his pieces
around.} (30. Ne2 {covering h3.} h4 31. Bxf6 Bxf6 32. Kh2 Bd4) 30... h4 31.
Nxe4 Rxe4 32. Bxf6 {He can't allow the N to get to g3 so it has to go.} Qxf6
33. Kh2 Qd4 {The gane is all but over. Black controls the e-file and white's
pieves are immobile.} 34. Qxd4 Bxd4 35. Rf3 Re1 36. Nf2 {After this all hope
is gome.} Rf1 37. g3 (37. Ne4 {was worth a try hoping black would fall for}
Rxf3 (37... Rd1 {is correct.} 38. Ng5+ Kh6 (38... Kg7 {blunders away all his
advantage.} 39. Ne6+ Kf6 40. g3 {and the N on e5 prevents black from making
any progress.}) 39. g3 hxg3+ 40. Rxg3 Ree1 {Blacj is winning.}) 38. Ng5+ Kg7
39. Nxf3 {and white has a fighting chance.}) 37... hxg3+ 38. Kxg3 Rg1+ 39. Kh2
Rb1 40. h4 Re3 {Rhe mop up begins.} 41. Rxe3 Bxe3 42. Nh3 Kh6 43. Ra3 Bc1 44.
Ra2 Rxb3 45. Re2 Rb2 46. Rxb2 Bxb2 47. Ng5 Kg7 48. Ne6+ Kf6 (48... Kf6 {
The N on e6 can;t help white. A possible continuation might be} 49. Nd8 (49.
Kg3 Bc3) 49... Ke7 50. Nxb7 Bc3 51. Kg3 Be1+ 52. Kh3 Kd7 {White is out of
moves and he is going to lose a lot of plastic.}) 0-1
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