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Viktor Arsentievich Goglidze vs Mikhail Botvinnik
Moscow (1935), Moscow URS, rd 9, Feb-27
Gruenfeld Defense: Three Knights Variation (D90)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Given 7 times; par: 41 [what's this?]

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sac: 27...Qxf1+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Aug-25-16
Premium Chessgames Member
  Phony Benoni: Plenty of ideas for Black, but the sequence has to be just right. I'm thinking <24...Bxa3.> After 25.Qxc2 Rxc2 26.Bd1 Rc3 I think Black can hold the extra piece, so recapture with <25.Rxa3>.

Now <25..>Qxe2 26.Qxb6 Rab8!>, and after the queen moves the back rank weakness can finally be exploited with <27...Qxf1+ 28.Kxf1> and the rooks mate as Black pleases.

Aug-25-16
Premium Chessgames Member
  patzer2: Attacked today's Thursday puzzle as a positional problem, and correctly played guess the move from 24...Bxa3! until the end of the game.

However, I didn't see the mate possibility until after 27. Qd6 which allows the mate-in-three starting with 27...Qxf1+ .

White's game takes a turn for the worse with 23. Qb1? allowing 23...Qc2 to (-1.92 @ 30 depth, Komodo 10).

Instead, 23. Qd2 = (-0.21 @ 33 depth, Stockfish 5SE) holds it about level.

Earlier in the opening, instead of 6. Qb3, I prefer 6. e4 as in Onischuk vs K W Troff, 2015

Aug-25-16  mel gibson: I saw this but DR4 64 bit buys more time with
24 Ba3 Bxa3
25 Bxa6 Qxb1
26 Rfxb1 Rxa6
27 Rxa3 score for white = -4.01
Aug-25-16  Razgriz: Almost didn't get it. The back rank mate threat was there. However, white's darksquared bishop could be interference. I then realized that pieces should go off first.
Aug-25-16
Premium Chessgames Member
  agb2002: The material is identical.

White threatens Qxb6.

After 24... Qxe2 25.Qxb6 Bxa6 26.Rxa6 White's back rank becomes seriously weak. For example, 26... Rab8 27.Qd6 Qxf1+ 28.Kxf1 Rb(c)1+ 29.Ke2 Rc(b)2#. However, after 24... Qxe2 White can play 25.Bxf8.

Therefore, 24... Bxa3:

A) 25.Rxa3 Qxe2

A.1) 26.Qxb6 Qxf1+ as above.

A.2) 26.Re1 Qb5 wins a piece (27.Rb3 B(Q)xb3).

B) 25.Qxc2 Rxc2

B.1) 26.Rxa3 Rxe2 wins a piece.

B.2) 26.Bd1 Rc3 wins a piece.

C) 25.Bd1 Qxb1 26.Rxb1 Rab8 wins a piece.

D) 26.Qxb6 Qxe2 wins a piece (27.Rxa3 transposes to A.1).

Aug-25-16
Premium Chessgames Member
  YouRang: Thursday 24...?


click for larger view

This is about as easy as it gets on a Thursday.

The point is that black is attacking both of white's bishops. If black takes the one on a3 with <24...Bxa3>,


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...then black cannot both (1) recapture on a3, and (2) save Be2, hence black wins a piece.

Perhaps white's only real try is <25.Qxc2>, but then <25...Rxc2> and the Be2 is still under attack.

I think that's about it.

Aug-25-16
Premium Chessgames Member
  diagonalley: ...got the right theme but failed to spot the killer move 26....QR-N1 (which botvinnik undoubtedly saw in a microsecond)
Aug-25-16
Premium Chessgames Member
  Cheapo by the Dozen: You know how we say that back-rank mating attacks look like they're straight out of Bobby Fischer Teaches Chess?

Well, this one doesn't. :)

Aug-25-16  AlicesKnight: Saw all the relevant moves but got them in the wrong order, which led to no more than equality. Not awake....
Aug-25-16  Stalwart: Viktor was being cheeky offering his bishop for the knight instead of hiding or protecting his white bishop.

bterranlong.wix.com/whitemates

Aug-25-16  dnp: rather easy for a Thur.
I think YouRang is right [always good analysis from him]Qxc2, better than being mated. What I really enjoy about Botvinnik's games is the simplicity and logicality of his moves.
Aug-25-16  wooden nickel: That's not fair... I was simply trying to win some kind of exchange in vain :-) Very aesthetical play, especially 27... Qxf7+!
Aug-25-16
Premium Chessgames Member
  patzer2: In a previous post, I mentioned 23. Qd2 is an improvement which would have saved White's game.

However, after 23. Qd2 Qc2 (diagram below) the defense is difficult:


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The only saving move here (diagram above) is 24. Bc1! =. All other possibilies lose.

For example, attempting to keep the Bishops on the second rank with 24. Rfd1? (diagram below)


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loses to a Rook fork after 24...Qxd2 25. Rxd2 Bb4 26. Rdd1 Rc2 (-3.64 @ 19 depth, Deep Fritz 15).

After the game saving moves 23. Qd2 Qc2 24. Bc1 = (diagram below),


click for larger view

play might continue 24... Bd6 (24... Qxd2 25. Bxd2 Rc2 26. Rfd1 Nd7 27. Bf1 Kg7 28. g3 Be7 29. Kg2 Nf6 30. Be1 =) 25. Qxc2 Rxc2 26. Bd1 = (-0.15 @ 23 depth, Deep Fritz 15) with a level game.

Aug-25-16  Patriot: I solved this only because it's a puzzle. I didn't have a clue a combination was even there with exception there are mutually hanging pieces. The key is the e4 pawn.

After a good 5-10 minutes I saw the whole combo.

Aug-25-16
Premium Chessgames Member
  YouRang: *sigh* I see now why I thought this puzzle was so easy. I had it in my head somehow that my (black) Nb6 was guarded. (Blaming it on lack of coffee again.)

After <24...Bxa3 25.Rxa3 Qxe2>


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I thought the combination was over, but of course white now has <26.Qxb6>, which evens up the material.

But here's where this puzzle earns its "Thursdayness": <26...Rab8!>


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Any effort by white to save the queen results in a nice queen-sac mate, e.g. <27.Qd6 Qxf1+! 28.Kxf1 Rb1+ 29.Ke2 Rc2#>


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The subtle hero of the whole line is black's Pe4 that blocks the king's only escapes. Seeing this from move 24 is really good chess.

Failing to notice that your knight isn't guarded is poor chess which generally leads to unpleasant surprises. This is the rare case where such an oversight might just turn out rosy!

Aug-25-16
Premium Chessgames Member
  kevin86: The queen sac leads to a steamroller mate with the rooks.
Aug-25-16
Premium Chessgames Member
  Jimfromprovidence: I liked the line discussed back in 2006, 24...Bxa3 25 Bg4.


click for larger view

Black has 25...f5 but 25...Bb2 is a very clever response, plus with a lot to look at still.


click for larger view

Aug-25-16  AlicesKnight: <AlicesKnight>: Saw all the relevant moves but got them in the wrong order - see also https://www.youtube.com/watch?v=JQN... for "not necessarily in the right order"....
Aug-25-16  Howard: Wonder how these various notes compare with those in the tournament book. I have it at home---remind me to look at it tonight.
Aug-25-16
Premium Chessgames Member
  swclark25: would white have been better with 24)..Qxb6 since he could have kept both rooks on first rank?
Aug-25-16
Premium Chessgames Member
  swclark25: sorry meant 25)Qxb6
Aug-25-16
Premium Chessgames Member
  TheBish: This one caused me to stretch my brain! I was about to give up when I saw the weak bank rank theme, with Black's two active rooks and the White queen's absence from the defense at the end. This one felt more like a Friday. I think it's the multiple possible captures to consider, as well as the veiled mating pattern at the end, that make this one somewhat difficult.
Aug-25-16
Premium Chessgames Member
  chrisowen: Wag by 3a it vane in it hon be it vam in it arms i f8 findbunks win u by 3a it arms i e2 it ebb win by b6 buffins b8 bullshine it hob it vane in mid d6 duffins mild 3 dip fin by in c3 cups win qu b6 buffins mild 3 dip fin i b1 bu i c2 u c dictum win um im fin bud by guild 25Rx3 it arms i f8 findbunks win u by guns 24.Bg4 dug guild by guns 24.B3 it arms i f8 findbunks win 3 punt by guild 25.Bg4 guild 4 punt luft by buffin 26.Qxb6 buffins um dj u in rubbin 26.R1 it et um win u 5 i punt luft finished it hob it vane in it hob be it vam in it a3 it arms i f8 findbunks win u by 3a it at arms win i e2 it ebb us win by b6 buffins b8 bullshine it hob it vane in mid d6 duffins mild 3 dip fin by c3 cups win qu b6 buffins mild 3 dip fin i b1 bu i c2 u c dictum win um im fin bud fun rim win in run qu b6 buffins um dj u in rubbin 26.R1 it et um win u5 i win punt luft finish it hob it vane in it hob be it vam in it a3 it arms i f8 findbunks win district win bio it hob it vane in it hob be it vam min mut bum bur bin mob it vest win icicle it hob it vane in it hob be it vam blip plum win i c u guild d6 duffins mild 3 dip fin by c3 cups win qu b6 buffins mild 3 dip fin i b1 bu i c2 u c dictum win um im fin bud hick dud i u lugs win wig it a3 it arms i f8 findbunks win whiff fun win run r qu by b6 buffins fig guff by guild 25.Bg4 guild 4 punt luft fin bud by guild 25.Rx3 it arms i f8 findbunks win whiff ruin q d6 duffins mild 3 dip fin by c3 cups win qu b6 buffins mild 3 dip fin i b1 bu i c2 u c dictum win um im fin bud district c u win wus bub bio it hob it vane in it hob be it vam min um tum mut mib i mit o tips win by pus us hunk hulk lick u yum u lug win in dumb dud quids finished it hob it vane in it hob be it vam in cull i guffin by c3 cups guild by fly i guildus lunk guild bunk dinks by bur qs c2 cup by cus win by go it oh pin by it egg i clink it et by cluckin jo it o b6 buffins win whiff ruin q d6 duffins mild 3 dip fin by c3 cups win qu b6 buffins mild 3 dip fin i b1 bu i c2 u c dictum win um im fin bud o it acts i cuffin it a3 it arms i f8 findbunks wins lunk it is aider i do it oh buildby mins win by bug dunk bid dink lug clip bud bunk churchbid it is aider i do it ebbin b6 buffins win by biffins it hob it vane in it hob be it vam min druid i by lunk f8 findbunks dunk build bin it aiders mins wins by dug is it eggs win u by c2 cub in 3a it arms i f8 findbunks win u;
Aug-25-16
Premium Chessgames Member
  chrisowen: by cull 24Bx3 25Rx3 it arms i f8 findbunks win do it egg in win i flick fickle it hob it vane in it hob be it vam min cuff c if click us in clip gull will in clunge it oh q pin i c2 cus gusty clips quiz it oh pin by guild 25.Bg4 4 punt luft by it eggsy 25...Qx2 26.Qxb6 buildin buffins minds win bind jug by it eggbud 26.R1 it et um win i by um 5 i win punt luft by builds 26...Rb8 27.Qd6 dubbins jug mild 3 dip fin by clinkus 27.Rc3 jo cups win qu b6 buffins 27Qxf1 id fun win info it oh pin fig by findbunk 28.Kxf1 Rb1+ dub 1 bu bur bin by it eggsydims 29.K2 Rc2 in c dictum win um im fin by lud guv it hob it vane in it hob be it vam min mib mig bum bug grub big gib bi win um mug gums wu lid clink wins clink us civic fun win no 3a it vane in it hob it vane it hon be it vam min cuff by 3a it acts i f8 findbunks win clink by f1 flicks by b1 bu c2 cud u c dictum win im f1 fin ;
Aug-25-16  drollere: material is equal, black has the edge in space; white's passed Q pawn is probably more threatening than black's R pawn.

Ba3 offers to trade Be2 for Nb6 and probably trade off black's potent B at f8. if black initiates, it pulls the QR off the first rank, which offers leverage.

i opted for:

24. ... Bxa3
25. Rxa3 Qxe2
26. Qxb6 R(a)b8
27. Qd6 Bc4 etc.

search thread:   
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