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Alexander Kazimirovich Tolush vs Paul Keres
Leningrad/Moscow training (1939), Leningrad/Moscow RUS, rd 7, Jan-11
Nimzo-Indian Defense: Spielmann Variation (E22)  ·  0-1
ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Dec-09-13  Bob Loblaw: 32. ♕f1?? was a blunder. {the correct course was: 32. ♕g4! g6 33. ♖b8+ forces a draw by repetition

Another critical point was at move 23. when Tolush should have put the pawn sac to the test with 23. ♗b5 In his annotations to the game Keres writes that black would have have regained his pawn after 23... ♕b6 24. ♖f1 ♖c5 25. ♗c4 e4 26. ♕e2 ♗d5 but the interpolation of 25. a4! a6 26. ♗c4 almost forces Black to sacrifice the exchange with 26... ♖c4 as 26... e4 no longer suffices due 27. ♕d4! with a large advantage to White. after 26.. ♖c5 play could continue: 27 ♕c4 ♕e3+ 28. ♔h1 ♕g5 29. ♕e4 ♗c8 30. ♖f2 ♘f5 where the onus is on black to show he has compensation for the exchange.

" Black can continue differently after 23 ... ♗b5" writes Keres, 'namely 23... e4 24. ♕f1 ♖c5. Now there is threatened 25 ... ♘f5, and after 26. ♗b4 or 26. ♗d4 there follows 25 ... ♖c2..."

In his analysis Keres misses the fact that his opponent isn't obligated to play either 26. ♗b4 or 26. ♗d4 but can play the much stronger 26. ♗e2! when after the logical 26.... ♗c8 27. ♗g4 ♘g6 28 fg ♗g4 29 gh+ ♔h7 30. ♖d2 White has pawn and the initiative and is very close to winning.

Jan-17-14  Skakalec: <Bob Loblaw> in your variation after 25. a4 a6 26.♗c4 ♖xc4 27.♕xc4 ♕xe3+ 28.♔h1 ♕g5 and now 29.♕xe4 ?? shouldn't black play 29...♖xe4?

Let's say that you overlooked that and the correct move is 29.♕e2 protecting g2, then black has a great attack with 29...e3! (threatening ♗xd5 with winning position) if 30.♖ad1 ♕xg2!! wins almost on spot, therefore 30.♖fd1 ♘xf5 with more then enough compensation for the exchange.

Jul-18-18  Count von Twothree: After 22...b5 23.Bxb5 the first line Keres gives certainly doesn't work i.e. 23...Qb6 24.Rf1 Rc5 25.Bc4 e4 26.Qe2 Bxd5 "and Black has regained his pawn with a good game". If we continue this line for four moves we see that in fact Black loses a piece: 27.Bxd5 Rxd5 28.Rf4 Nxf5 29.Rxf5 Rxf5 30. Qc4+ and there is a fork on c8.
Jul-18-18  Count von Twothree: The second line Keres gives after 22...b5 23.Bxb5 is also faulty, i.e. 23...e4 24.Qf1 Rc5 25.Bd4 Rc2 because 26.Qf4 lands the knight in big trouble: 26...Nxg2 27.Qg3 and then Bf1 will pick up the errant knight.
Aug-19-19  Cheapo by the Dozen: What <iron maiden> said 15 years ago. :)

A bit tricksy as Mondays go, actually. Nice one.

Aug-19-19  Dirkster: I did it! Wow! I must have as much chess savvy as did Mr. Keres! Hmmm... on further reflection, I probably don't even have as much as NN. (Who was that guy, anyway...?!?)
Aug-19-19
Premium Chessgames Member
  Jimfromprovidence: There's a very nice side puzzle if you change white's move to 36 Qc8+, followed by 36...Kh7 37 Qd7.

Now white threatens mate in 1 and also defensively the queen has access to h3.


click for larger view

Black to play and win.

Aug-19-19
Premium Chessgames Member
  agb2002: Black is a pawn up.

White threatens Qxg7#.

The white king is defenseless. Hence, 36... Qg3+ 37.Kxg3 (37.Kg(h)1 e8=Q(R)#) 37... e8=Q+:

A) 38.Kf3(4) Qe3#.

B) 38.Kh2 Qxh4+ 39.Kg1 Re1#.

C) 38.Kh3 Re3+ 39.Kh2 (39.g3 Qxg3#) 39... Qxh4+ 40.Kg1 Re1#.

Aug-19-19
Premium Chessgames Member
  agb2002: <Jim> The essential difference is that the black king can escape (37... Kg6 38.Qxg7+ Kf5) and Black will end up a Queen ahead.

However, also 37... Qg3+ works: 38.Kxg3 e1=Q+ 39.Kh2 Qxh4+ 40.Qh3 Qd4 with the threats h4, Rg5, Rxd5, etc.

Aug-19-19  saturn2: I saw 36...Qg3+ 37. Kxg3 e1=Q+

38. Kf3 Qe3# or
38. Kf4 Qxh4+ 39. Kf3 Qg4+ 40. Kf2 Re2+
38. Kh3 Re3+ 39. Kh2 Qxh4+ 40. Kg1 Re1#
38. Kh2 Qxh4+ 39. Kg1 Re1#

Aug-19-19  stacase: It took me forever to see 38.Kh2 Qxh4+ and whatever would follow. The other variations for White's move 38. were more more obvious. But White didn't care to continue past the "very easy" 37...e1=Q+
Aug-19-19  cocker: Mondays sure aint what they used to be.
Aug-19-19
Premium Chessgames Member
  malt: Have 36...Qg3+ 37.K:g3 e1/Q+ 38.Kh3

(38.Kh2 Q:h4+ 39.Kg1 Re1# )
(38.Kf3 Qe3# )

38...Re3+ 39.Kh2 Q:h4+ 40.Kg1 Re1#

Aug-19-19  TheaN: Intriguing decoy. Queen for queen, but at e1 she leads to mate, whereas on b3 she doesn't. The critical square is h4. <36....Qg3+ 37.Kxg3 (else e1=Q#) e1=Q+>.

The main move to consider is <38.Kh3> (Kh2 is a move faster, follow the combination at move 39), the other moves lead to multiple mate in ones, 38.Kf3 Rf5#/Qe3#, 38.Kf4 Qe3#/Qf2#. However, <38....Re3+> lures the king where he should be <39.Kh2 (g3 Qxg3#) Qxh4+ 40.Kg1 Re1#> and Black's mating on time control.

Aug-19-19  TheaN: <Jimfromprovidence: There's a very nice side puzzle if you change white's move to 36 Qc8+, followed by 36...Kh7 37 Qd7.>

Makes you wonder whether Tolush just completely missed Keres' combination and/or was in severe time pressure as the chase is scary for Black. Winning, but you'd wonder if Keres had seen it completely.

Aug-19-19
Premium Chessgames Member
  patzer2: Black is about to get mated in today's Monday (36...?) puzzle. So desperate measures are needed. A desperado mating combination with the Queen sacrifice 36...Qg3+! followed by the pawn promotion 37...e1=Q+ is the answer.

So where did White go wrong? The losing move was 30. Qxf1?, allowing 30...Qxb3 -+ (-2.50 @ 32 ply, Stockfish 10).

Instead, White can keep it level by trading down and simplifying with 32.Rb8+ Kf7 33.Rb7+ Re7 34.Rxe7+ Kxe7 35.Qxe4+ Kd8 36.Kxf1 Qxb3 37.Qxh7 = (0.00 @ 45 ply, Stockfish 10).

P.S.: My Daughter, who directs a children's chess club in Waco, Texas, scored wins in three of four games in the Texas State Women's Chess Championship this past weekend to tie for Third place.

While his Mom was playing in the women's state championship, my 10-year-old Grandson played in a separate tournament at the Dallas Chess Club and won four of five games to take second place. The weekend prior to this event, he won first place in a scholastic tournament (K-12) in Waco Texas with a 4-0 score.

Needless to say, I'm very proud of my Daughter and Grandson.

Aug-19-19  Rama: I kept wanting to play Qxd5+, oops.
Aug-19-19  hashtag: unattended
Aug-19-19  Everett: Clever! Monday level?
Aug-19-19
Premium Chessgames Member
  doubledrooks: 36...Qg3+ leads to mate.

A good puzzle for a Monday.

Aug-19-19  AlicesKnight: Black needs to check, so it was not hard to find, but still a nice manoeuvre.
Aug-19-19
Premium Chessgames Member
  eternaloptimist: It took me longer to find the 1st correct move of the puzzle than it normally does on a Monday but nevertheless I figured it out! This is probably mainly due to me being kind of tired. From reading some of the kibitzes I can tell a couple of other people had trouble figuring out this puzzle also. After I found ...♕g3+ the next move that Keres played in the game was obvious. Still Keres’ decoy ♕ sac was more clever than most Monday puzzles!
Aug-19-19
Premium Chessgames Member
  OhioChessFan: <JFP: There's a very nice side puzzle if you change white's move to 36 Qc8+, followed by 36...Kh7 37 Qd7. Now white threatens mate in 1 and also defensively the queen has access to h3>


click for larger view

That's a useful sort of position to remember, as endgames can come down to that "Who's got the move?" moment. Black wins easily with 37...Kg6 and intends Kg6/f5/f4/e4/d4 whereupon White's checks run out and Black's attack succeeds.

Aug-19-19
Premium Chessgames Member
  Breunor: Patzer 2, congrats on your family's chess accomplishments!

As far as move 23 goes, here is the computer analysis:

1) +0.60 (21 ply) 23.Qxb5 Nxf5 24.e4 Nd4 25.Bxd4 exd4 26.Rxd4 a6 27.Qb3 a5 28.Qb5 Rc5 29.Qf1 Qb6 30.Qf2 Rcc7 31.b4 axb4 32.Rb1 Rc5 33.Rdxb4 Rc1+ 34.Rxc1 Qxb4

Aug-19-19
Premium Chessgames Member
  gawain: Give up a queen to get a new queen, better positioned. A rather subtle puzzle for a Monday. I like it.
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