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J Gabrovsek vs Djordje Avirovic
Yugoslavia (1933)
Slav Defense: Quiet Variation. Schallopp Defense (D12)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Dec-06-13  LoveThatJoker: Hmmm...I haven't fired up an engine (as at present I don't have recourse to it), but it seems that the 27. Rb8+ Rxb8 28. Bxb8 is not as immediately convincing due to 28...Qa6.

I posted my solution post and all of a sudden 28...Qa6 came to me as a possible defence.

Oh well, hopefully I do better next time.

LTJ

Dec-06-13  patfoley: I think 27 Rb8ch RxB8 28 Qc6ch Rb7 29 NxR, QxN
30 Rb1 QxQ 31 Rb8ch Kr7 32 dxc6 wins.

Black has little he can practically do to untangle his pieces. White has ideas like R b7 followed by Rf7 and c6c7 and even the very slow movement of the white bishop into the attack.

Dec-06-13  actinia: <Keas> I came up with 26. ... Qxb6 27. Nc6+ Kb7 28. Nxe7 Ra8 29. Qc6+ Qxc6 30. dxc6+ K to b-file 31. Rb1+ K to a-file 32. Bxf6 when white has two minor pieces and a pawn for a rook. black should have gone into this line though
Dec-06-13  dstroyer: <Jamboree> I did the same line as you but could not figure out how to deal with the somewhat lame waiting move, 28. ... Qa6
Dec-06-13  Patriot: 27.Rb8+ Rxb8 28.Qc6+ Rb7 29.Rb1 Bxa5 doesn't look good.

27.Rb8+ Rxb8 28.Qc6+ Rb7 29.Qc8+ Rb8 30.Qc6+ draws. White just looks so much better than this.

27.Rb8+ Rxb8 28.Qc6+ Rb7 29.Nxb7 Qxb7 30.Rb1 Qxc6 31.Rb8+ Ka7 32.dxc6 - Interesting but I'm not sure how that is good for white.

27.Rb7 Qxa5 28.Qxa5+ Bxa5 29.Rxf7 Nf8 And...?

27.Rc6 Rxc6 28.Qxc6+ and mate next.

27.Rc6 Bxa5 28.Rb1 Nd7 looks like an interesting defense.

27.Rc6 Bxa5 28.Bxf6 may be the way to go.

27.Rc6 Qxa5 28.Rxc8+ Kb7 29.Qc6+

I'm going with 27.Rc6. 27.Rb5 holds I think, but the best chance to win seems to be 27.Rc6. This one seems very tricky and I've already spent too much time on this.

Dec-06-13  Patriot: 27.Bc7 - What a move! It also turns out that the simple 27.Rb5 is crushing. Black has threats but with white's attack you have to think white's evaluation must be very high. And if that's the case, Steinitz would've suggested searching until the winning move is found.

Good job to those who found 27.Rb8+! Rxb8 28.Bxb8! - the move I missed.

<morf> It looks like we came up with the same thing! :-)

Dec-06-13
Premium Chessgames Member
  al wazir: <chesslearning>: On further thought, I'll stick with 27. Rb8+. Granted, 27. Bc7! is a better move, but I think my move still wins.

After 27...Rxb8 28. Bxb8 Qa6, white has 29. Rb1. If now 29...Bxa5, then 30. Rb5 Rxb8 31. Rxa5 Rb1+ 32. Bf1 Qxa5 33. Qxa5+ Kb7. White has ♕+♙ vs. ♖+♘ and is going to win more material because black's ♘ is in a vulnerable spot.

Dec-06-13  James D Flynn: Material is equal but Black’s K is exposed to White’s pieces on the Q-side where it has no pawn cover whereas White’s K is safely tucked away on the K-side behind unbroken pawn cover. 27.Rb8+ Rxb8 28.Qc6+ Rb7 29.Qc8+ Rb8 30.Bxb8 Qxb8 31.Qa6+ Qa7 32.Qc6+ Kb8 33.Rb1+(Black must sac both Q and B for the R to avoid immediate mate)Bb6 34.Rxb6+ Qxb6 35.Qxb6+ Kc8 36.Qb7+ Kd8 37.Nc6+ Ke8 38.Qe7#
Dec-06-13  James D Flynn: The game solution 27.Bc7 is prettier and faster to mate than my solution, which, however, mates with a sequence of forced moves.
Dec-06-13
Premium Chessgames Member
  Penguincw: I thought I came close with 27.Rb8+, but it wasn't the best move.
Dec-06-13  BOSTER: In his adventurous life a bishop very often plays the main role in combo with interfetence. 27Rb8+ is to attractive to see 27.Bc7. Another ex.,where opponent's bishop played this role.


click for larger view

.White to play.

Dec-06-13
Premium Chessgames Member
  Penguincw: Nice puzzle <BOSTER>. 1.Re8+ Qxe8 (1...Bxe8 2.Qg8+) 2.Qf6# 1-0 right?.
Dec-06-13
Premium Chessgames Member
  FSR: <<James D Flynn: Material is equal but Black’s K is exposed to White’s pieces on the Q-side where it has no pawn cover whereas White’s K is safely tucked away on the K-side behind unbroken pawn cover. 27.Rb8+ Rxb8 28.Qc6+ Rb7 29.Qc8+ Rb8 30.Bxb8 Qxb8 31.Qa6+ Qa7 32.Qc6+ Kb8 33.Rb1+(Black must sac both Q and B for the R to avoid immediate mate)Bb6 34.Rxb6+ Qxb6 35.Qxb6+ Kc8 36.Qb7+ Kd8 37.Nc6+ Ke8 38.Qe7#>

The game solution 27.Bc7 is prettier and faster to mate than my solution, which, however, mates with a sequence of forced moves.>

It's not forced. I saw the same line, but as I said I gave up on it after seeing 29...Qb8 (instead of 29...Rb8) 30.Bxb8 Bxa5!

Dec-06-13
Premium Chessgames Member
  Jimfromprovidence: For the record 27 Rd6!? also might work.


click for larger view

One idea is to get the rook out of harm's way and look to play 28 Qb5 followed by Ra6.

Another is after 27...Bxa5 28 Bxf6 to attack with 29 Rd7

Dec-06-13
Premium Chessgames Member
  morfishine: Best defense after 27.Bc7 appears to be

<27...Qxb6> of which follows 28.Nc6+ Kb7 29.Bxb6 Bxb6 30.Rb1 Ra8


click for larger view

Black is barely hanging on but has 31...Nd7 to shore up his Bishop

*****

Dec-06-13
Premium Chessgames Member
  FSR: <morfishine> In your final position, 31.Qb5 Nd7 32.a4 intending 33.a5 looks crushing.
Dec-06-13  abuzic: In this line <27.Bc7 Qxb6> 28.Bxb6 is forcing mate:

A) 28...Bxb6 29.Rb1 Rb8;

<29...Ba7 30.Nc6 Rc7 31.Nxa7 Rxa7 32.Qc6+ Rb7 33.Qxb7#>;

<29...Kb8 30.Rxb6+ Kc7 31.d6+ Kxb6 32.Qb3+ Kxa5 33.Qb5#>;

<29...Nxd5 30.cxd5 Rb8 31.Nc6+ Kb7 32.Qa7+ Kc8 33.Ba6+ Rb7 34.Qxb7#>

30.Nc6+ Kb7 31.Qa7+ Kc8 32.Qxb8+ Kd7 33.Ne5+ Ke7 34.d6#;

B) 28...Kb8 29.Nc6+ Rxc6 30.Qa7+ Kc8 31.Qa8+ Kd7 32.Qxc6+ Ke7 33.Bxc5#;

28...Nxd5 29.Qd7 Rc7 30.Bxc7 Nxc7 31.Qc8+ Ka7 32.Qb7#;

28...Nd7 29.Nb7+ Kxb7 30.Qa7#

Dec-06-13  Patriot: <FSR> When I looked at that position, I thought 31.Rxb6+ Kxb6 32.Qb5+ Qc7 33.Ne5 is interesting. I like 31.Qb5 better as it is hard to go wrong.

But then I saw 31.Na5+ and liked it even better since 31...Rxa5 32.Qc6+ is brutal. 31...Ka6 32.Qb5+ . 31...Ka7 32.Qc6 is deadly. 31...Kc8 32.Qc6+ should win easily.

Dec-07-13
Premium Chessgames Member
  FSR: <Patriot> You're right - 31.Na5+ is even faster.
Dec-07-13
Premium Chessgames Member
  Richard Taylor: <gars><morfishine> I agree - this was one of the hardest to visualise, although I might just be getting old or tired or both...

But it was an amazing game. It is these relatively "minor" masters who have the imagination while other players whoa re really just glorified bookkeepers win world championships by playing games barely more imaginative or interesting than the act of watching paint dry while tugging oneself...

Dec-07-13
Premium Chessgames Member
  Richard Taylor: < yadasampati: <FSR> Thanks for the link to the game Tarrasch vs Allies, 1914 with a similar bishop move in the end, only that move is even more mind-blowing. The offer creates a direct mate threat, black has to take and no matter how, it is a mate in 3 (when Q takes) or 2 (when R takes)

I advice anyone who loves chess to take a look at it. Reinfeld's comment to that beautiful last move is:

"White's last move is one of the most beautiful ever played on the chess-board." >

Yes. That is considered to be one of the most beautiful moves ever played. I found that idea myself - I also calculated a 12 or so move combination - but it took me some time - and it turned out to be what Tarrasch played - the game ended in a beautiful and unusual mate) when playing over Tarrasch's (182 or so games) edited by Reinfeld. I think the complexity of this position makes this combo also very beautiful and harder to visualise.

I found some other combos and ideas but this one had me totally stumped. I had no idea, well not the accurate ideas and play of the White player here.

Dec-07-13
Premium Chessgames Member
  morfishine: <FSR> On 31.Qb5, Black can play 31...exd5 The point being that Black, though desperate, mobilizes all his forces for a final showdown. After 32.a4 Rgc8 33.cxd5 Nxd5 34.Qxc5 Be6 we are here:


click for larger view

White is forced to sac an exchange, but after 35.Rxb6+ Nxb6 36.Na5+ Rxa5 37.Qxa5 Rc1+ 38.Bf1 Bc4


click for larger view

Black is winning here, no?

*****

Dec-08-13
Premium Chessgames Member
  FSR: <morfishine> Continuing from the diagram you posted on Dec. 6: 31.Qb5 exd5? 32.Qxb6+ Kc8 33.Qc7#.
Dec-08-13
Premium Chessgames Member
  morfishine: <FSR> Oops!
Dec-08-13
Premium Chessgames Member
  FSR: <morfishine> :-)
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