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Lembit Oll vs Aivars Gipslis
Parnu (1982)
Alekhine Defense: Modern. Alburt Variation (B04)  ·  1-0



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Kibitzer's Corner
Apr-23-03  crafty: 17. g4 ♕xg4 18. ♗h6 ♕f5 19. ♖dg1 ♘c4 20. ♘xc4   (eval 2.34; depth 14 ply; 500M nodes)
Apr-23-03  PVS: Crafty makes a nice addition to
Dec-13-20  Chessmaletaja: The game Oll - Gipslis 1982 has been regarded as one of the best games of Lembit Oll.

The position after 23...fxg6:

click for larger view

In the position above, White made a fantastic winning move. Note that even after 24. ♘f3?! ⩲ White still stands slightly better.

In the position above, Black needs only 2 moves: ♘c7-d5-f4 and Black is fine.

If in the present position, it is Black to move, then White still stands slightly better ( ⩲) and Black's only move is ♔f7.

If in the present position, it is White to move and Black's knight ♘/c7 stands ♘/f4 instead, then Black stands slightly better ( ⩱) and White's only move is ♔b1.

In the game, the centre was closed, White castled 0-0-0 and started a king attack on the kingside. Black helped to open the files on the kingside.

Black's plan was good but too slowly:

♘c4; dxc4; c6; ♘b8-a6-c7-d5

Moreover, Black lost a tempo ♗c8-g4-f5.

The chess engine says that 3 times consecutively Black had to play c5. It is consistent with the general principles of chess strategy: if the opponent attacks on the kingside, one must be active in the centre. Moreover, opening the c-line against White's king would have been useful.

My computer analysis can be seen on Lichess:

Dec-14-20  Chessmaletaja: With his move <12. h4!> White threatened 13. h5. Whether Black can block it or avoid opening the h-file?

12...h6? 13. h5 Δ 13...g5? 14. ♕d3 +-

12...h5 13. e6! Δ 13...♗xe6 14. ♗xg6! ±

My chess engine Komodo says that Black's best move is 12...♘c7 ±.

But Black still tried to hinder White's h-pawn and played


click for larger view

Here, 13. ♕e3 ± is a sufficiently good move. But White played

<13. h5! +->

To make such a move, White had to make some calculations, in the position shown above.


13...gxh5?? 14. ♕d3 +-

It is also easy to calculate something like that:

13...♗xh5? 14. ♖xh5! gxh5 15. ♗xh7+! ♔xh7 16. ♘g5+

and now

16...♔g8? 17. ♕xh5 ♖e8 18. ♕xf7+ ♔h8

White can see in his calculations that he has at least the eternal check. But maybe something better, it can be checked if that position arrives on the board.

Maybe the grossmaster is able to see that

19. ♕g6! ♔g8 20. ♘e6 checkmates.

But what after


Perhaps even a grossmaster does not see a forced win in that position. Perhaps one simply evaluates the position and one's winning chances. Having some memories about similar positions. I do not know.

My analysis shows the following possible continuation:

17. ♘df3 f5

Black's only hope. Now, White has the life insurance 18. ♘e6, but better is

18. ♘h4+ ♔h6 19. ♘f7+ ♔h7 20. ♕xh5+ ♔g8 21. ♘g5! +-

Again, White has at least the eternal check, in addition, probably White can win the queen after 21...♖e8 22. ♕h7+ ♔f8 23. ♘e6+.

So White does not actually need to calculate everything till the end of the variation, which should be:

Δ 21...♖e8 22. ♕h7+ ♔f8 23. ♘g6 #

It is 10 moves starting from 23. h5! and finishing with 23. ♘g6 #.

Premium Chessgames Member
  fredthebear: <It is 10 moves starting from 23. h5! and finishing with 23. ♘g6 #.>

Yo no comprendo por qué tenemos que ir en taxi si el restaurante está a la vuelta de la esquina.

Premium Chessgames Member
  drollere: Qh6+ was obvious. i looked at Kg8 or Kh8 as a way to hold onto h7, but those moves also don't seem to defend against collapse.
Apr-02-21  mel gibson: This puzzle replies on the fact that after 24 Qh6+ Black cannot take the Queen as it will be checkmate next move.

24. Qh6+

(24. Qh6+ (♕e3-h6+
♔g7-f7 ♕h6xh7+ ♔f7-e8 ♖g1xg6 ♕e6-d5 ♘h4-f5 ♖f8xf5 ♖g6-g8+ ♕d5xg8 ♕h7xg8+ ♖f5-f8 ♕g8xc4 ♔e8-d7 e5-e6+ ♘c7xe6 d4-d5 ♘e6-d8 ♖h1-h7 ♔d7-d6 ♕c4-e4 ♖f8-f7 ♖h7-h6+ ♔d6-c7 ♕e4-e5+ ♔c7-b6 ♖h6-h5 c6-c5 ♖h5-h6+ ♖f7-f6 ♖h6-h8 ♖f6-d6 ♖h8-h5 ♘d8-c6 d5xc6 ♖d6xc6 ♕e5xe7 ♖a8-c8 ♕e7-d7 ♖c6-c7 ♕d7-a4 ♖c7-c6 f2-f4 ♔b6-a7 ♕a4xa5+ ♔a7-b8 ♕a5-b5 ♖c8-c7 a2-a4 b7-b6 ♕b5-c4 ♖c7-c8) +5.78/43 202)

score for White +5.78 depth 43

Apr-02-21  Walter Glattke: A) Expected 24.Nxg6 hxg6 25.Qh6+ Kf7 26.Qh7+ Ke8 27.Rxg6 Qd5 -+ B) the unexpected 24.Qh6+ Kf7 (Kxh6 Nf5++#) 25.Qxh7+ Ke8 26.Nxg6 +- C) the match 26.Rxg6 Qd5 27.Nf5 Rxf5 28.Rg8+ Rf8 29.Rxf8+ Kxf8 30.Qf5+ Ke8 31.Rh8# C2) 30.-Qf7 31.Rh8+ Kg7 32.Rh7+ Kg8 (f8) 33.Qxf7# C3) no mate 27.-Qxh1+ 28.Qxh1 Rxf5 +-
Apr-02-21  Brenin: <drollere>: 24 ... Kg8 and 24 ... Kh8 don't just fail to defend against collapse, they allow mate in 4 by 25 Qxh7+ Kxh7 26 Nxg6+ Kg7 (or Kg8) 27 Nh8+ Qg4 28 Rxg4# Playing 26 ... Qh3 27 Rxh3+ is no help, either.
Apr-02-21  Cheapo by the Dozen: The start of the combination was obvious, but I didn't see the knight sacrifice, which is to say I didn't see how to cut off the Black king's flight.
Apr-02-21  malt: Did not see it at first,
24.Qh6+! Kf7
(24...K:h6 25.Nf5# )

25.Q:h7+ Ke8 26.R:g6 Qf7 27.Rg7 Qf4+ 28.Kd1 with an attack.

Apr-02-21  Cellist: I checked a variety of moves before finding the deceptively simple 24. Qh6+. I did not see the combination to the end and may well have erred in one of the next moves, losing a won position.
Premium Chessgames Member
  chrisowen: Dregs vim Qh6+ i fan goofball aorta vim fjord vim affix pinto Kf7, edict aortads luv delve it ok jader guv off chaff blips wilts win minky guv o query quirky dre gives its clos vim man hubby pay within fire it ok von guv tot fat cinch god vim guv ian it was et flush Qh6+ ditto gacky;
Premium Chessgames Member
  agb2002: White is one pawn down.

The position of the white pieces and the black king invites to play 24.Qh6+:

A) 24... Kxh6 25.Nf5#.

B) 24... Kg(h)8 25.Qxh7+ Kxh7 26.Nxg6+ Kg7(8) 27.Nh8+ and mate next.

C) 24... Kf7 25.Qxh7+ Ke8 26.Rxg6 wins a pawn at least.

Apr-02-21  Refused: 24.Qh6+

a) 24...Kxh6 25.Nf5#
b) 24...Kg8 25.Qxh7 Kh7 25.Ng6+ Kg7 26.Nh8+ Qg6 27.Rxg6# c) 24...Kf7 25.Qxh7+ Ke8 26.Rxg6 Qd5 27.Nf5 basically white just keeps throwing pieces at black until the position collapses. Attack being a self-sustaining engine.

Apr-02-21  TheaN: Incredibly straightforward Friday. <24.Qh6+> only really requires you to see 24....Kxh6? 25.Nf5#; after 24....Kg8 and Kh8 25.Qxh7+! is #4 which I missed, but on both moves 25.Nxg6(+) is killing as well for pretty much the same reasons.

The 'main' line just sees the Black king side in shambles for no compensation whatsoever after <24....Kf7 25.Qxh7+ Ke8 26.Rxg6 +->. Nf5 is definitely pretty but not required, even something as docile as blocking the queen: 26....Qd5 27.f3 +- is +2.5.

Apr-02-21  RandomVisitor: Curious is the position at white's 23rd move: 23.hxg6 wins, but so do other moves

click for larger view


49/78 2:23:04 +13.06 23.f4 Nd5 24.Qg3 f5 25.hxg6 h6 26.Qh3 h5 27.Qf3 Rh8 28.Rg5 Raf8 29.Rxh5 a4 30.Rh7+ Rxh7 31.gxh7 Rh8 32.Qg3+ Kf7 33.Rg1 Ke8

49/74 2:23:04 +9.07 23.Qf4 Rh8 24.Nf5+ Kf8 25.Qh6+ Ke8 26.Ng7+ Kd7 27.Nxe6 Nxe6 28.hxg6 fxg6 29.Qh3 a4 30.Rd1 Ra5 31.Qg4 h5 32.Qxg6 Nc7 33.Qg7 Rd8

49/72 2:23:04 +7.44 23.Qg5 Rg8 24.f4 Kh8 25.hxg6 fxg6 26.d5 cxd5 27.Nxg6+ Rxg6 28.Qxg6 Qxg6 29.Rxg6 Rf8 30.Rb6 Rf7 31.f5 Rxf5 32.Rxb7 Ne6 33.Rxe7 Ng5

49/66 2:23:04 +6.79 23.Qg3 Rg8 24.f4 Kh8 25.hxg6 fxg6 26.Nxg6+ Qxg6 27.Qxg6 Rxg6 28.Rxg6 Rf8 29.Rgh6 Rf7 30.f5 Kg8 31.a4 Nd5 32.Rf1 Kf8 33.Rf3 Rg7

<49/78 2:23:04 +6.36 23.hxg6 fxg6 24.Qh6+ Kf7 25.Qxh7+ Ke8 26.Rxg6 Qd5 27.Nf5 Rxf5 28.Rg8+> Qxg8 29.Qxg8+ Rf8 30.Qxc4 Kd7 31.e6+ Nxe6 32.d5 Nd8 33.Rh7 Rf7

49/69 2:23:04 +6.07 23.Rh2 Nd5 24.Qg5 Rg8 25.Qh6+ Kxh6 26.hxg6 Kg7 27.gxh7+ Qg6 28.hxg8Q+ Rxg8 29.Nxg6 fxg6 30.Rgh1 Kf7 31.Rh8 Rg7 32.Rb8 Ke6 33.Rxb7 Rf7

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