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Alexander Kotov vs Ratmir Kholmov
"Kotov Arms" (game of the day May-16-2013)
URS (1971)
Queen's Indian Defense: Spassky System (E14)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Given 6 times; par: 49 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Aug-04-16
Premium Chessgames Member
  agb2002: The material is identical.

Black threatens Bxd4 and Rxa2.

White can exploit the position of the black queen with 26.Rxc5 Rxc5 27.Rc2 Rc8 28.Qb5:

A) 28... Rxc2 29.Bxa7 Rxa2 30.Bc5 (due to 30... Rc8# and 30... Rxa7)

A.1) 30... Rac2 31.Bd4 + - [Q+B vs 2R+P] (threatens Qd7 and Qxb4; 31... Raa2 32.Qe8#).

A.2) 30... Ra1+ 31.Kf2 doesn't seem to change anything.

B) 28... Rxb5 29.Rxc8+ Kf7 30.Bxa7 Ra5 31.Bc5 Rxa2 32.Bxb4 followed by Rc3 + - [B].

C) 28... R8c7 29.Qe8#.

D) 28... Kf7 29.Bxc5 Qc7 30.Qxb4 + - [B+P].

Aug-04-16
Premium Chessgames Member
  morfishine: <26.Rxc5>
Aug-04-16  zb2cr: Found this one quickly. Takes real confidence to play this kind of combination.
Aug-04-16  LlanelliCC: Gofer. Exactly. You start early and learn thousands of patterns, like the one in today's puzzle, and then they become automatic when you play in a real game.
Aug-04-16
Premium Chessgames Member
  Once: This is one of those "I want to, I can't, I can" sort of puzzles.

From the opening position, the move that we really want to play is 26. Rxc5. This would replace the black bishop on c5 (which can't be pinned diagonally) with a black rook (which can). So that leads us to 26. Rxc5 Rxc5:


click for larger view

Now that the black Rc5 is pinned we follow the usual prescription of adding more pressure to the pin. That leads us to 27. Rc2 Rfc8


click for larger view

White attacks c5 for a second time. Black defends it for a second time. Now white wants to be able to attack c5 for a third time.

You see, there is a basic unfairness in chess. All other things being equal, the attacking side can sometimes attack a pinned piece with more pieces than can defend it. This is because the pinned piece can't defend itself. So if material is level, the attacker can find that he has an extra piece.

This doesn't always work - opposite coloured bishops can mess it up - but it often applies.

But white has a problem. He would like to add his queen into the attack, but there's no obvious way to do this. For example, he would like to warp his queen to d6 or capture on b4. Unfortunately these all take time to arrange - time that white doesn't have because black can easily unpin himself with a move like Qa5.

That's when your eye falls on the move 28. Qb5.


click for larger view

If it works it will add an extra attacker to the pinned Rc5. That's the "I want" part of the puzzle. I want to be able to play 28. Qb5.

We might be tempted to reject 28. Qb5 out of hand because it puts two pieces en prise - the white queen and the white rook. That's the "I can't" phase.

If we look a little deeper, we see that white wins material whichever way black captures. If 28...Rxc5 white doesn't play the disastrous 29. Bxa7 Rxc2. Instead he plays the zwischenzug 29. Rxc8+ Kf7 and only then 30. Bxa7

Or the game continuation when black finds himself with 2R vs Q+B, where the white queen and bishop pair will hoover up all the weak black pawns.

So our Qb5 is an "I can" after all.

Aug-04-16
Premium Chessgames Member
  patzer2: Black's 25...Qa7? meets with disaster in the form of a pinning combination starting with 26. Rxc5!, which also solves today's Thursday puzzle.

The follow-up move 28. Qb5! is available to put pressure on the pinned piece because of the in-between move (a.k.a. zwischenzug or intermezzo) threat 28...Rxb5 29. Rxc8+ Kf7 30. Bxa7 which leaves White a piece up (i.e. extra Bishop).

Instead of 25...Qa7?, allowing 26. Rxc5! , Black should have played 25...Rfa8 = (0.17 @ 22 depth, Deep Fritz 15).

Aug-04-16  karik: <Abdel Irada ... the cartoon depicting a discussion between /i/ and pi.

/i/: "Be rational." ...>

/i/ doesn't know that he is actually irrational.

Aug-04-16  saturn2: hm i got it up to move 27 but would have played 28 e4 fxe 29 Qe3 This seems also to gain the black rook on c5
Aug-04-16  knutinge: gofer:
Vielen Dank, für die Antwort!
Sehr richtig -Musterkennung- heißt das Zauberwort!
Aug-04-16  drollere: this one was not hard, as Bxg7 goes nowhere and Bxc5 does not create a pin on the hanging Q. so the R goes first.

however, after closing up the Kside pawns, kotov had to see that the Q and B could win against the disconnected Rs: Qd7 and Bd4 is the point of the combination.

Aug-04-16
Premium Chessgames Member
  kevin86: These crossfire pins are murder!
Aug-04-16  KIDHarish2003: <gg>.
Aug-04-16
Premium Chessgames Member
  beenthere240: If we back up a bit we see that black was simply being obstinate -- first setting up a discovered attack on his queen by moving to a7 and then refusing to exchange the bishops. Serves him right.
Aug-04-16  BOSTER: of course that Kholmov'd see that rook on c5'd be pinned, but he forgot that rook on c8 and his king g8 on the same line. More interesting pin was in the game Polugayevsky vs Hort, when in the pos (diagram) after Qd7 Hort reacted instantly playing Re1+ and after Kh2 Rc1 pinning the white rook.


click for larger view

Aug-04-16
Premium Chessgames Member
  Jimfromprovidence: I think <agb2002> was getting at this but I just now realized that 30 Bc5 was not just logical but the only winning move.


click for larger view

Aug-04-16  Chess Dad: <Boster: and after Kh2 Rc1 pinning the white rook. >

Instead of Kh2, why not simply take at g2?

I tried to understand that, so I looked at the game, and I realized that g2 was a *white* pawn.

Too bad you can't take your own pieces. :>)

Aug-04-16  BOSTER: <Chess Dad: you can't take your own pieces>. PEN was wrong, but not pin.
Aug-04-16
Premium Chessgames Member
  swclark25: First kibitz from a very novice guy. I am interested in learning better chess with this site and I enjoy the kibitzing. I thought about 26) Rf2c2 and then follow with 27) Rc5.. what is weakness with that?
Aug-04-16  Shams: <swclark25> Welcome to the site! 26.Rff2 Bxd4 and it looks to me like Black should have no problems.
Aug-04-16
Premium Chessgames Member
  tpstar: <swclark25> Welcome to the site. =)

This is a great place to improve at chess, as every day features a Daily Puzzle where we can work on our tactics. Note this combination began after a blunder (25 ... Qa7??) as 25 ... Bxd4 trades down to an equal major piece endgame:


click for larger view

Moves like 26. Bxc5 or 26. Rfc2 would trade down without winning material. The win here involves creating a pin (26. Rxc5! Rxc5), piling on (or piling up) the pin (27. Rc2 Rc8), then utilizing a cross-pin (28. Qb5!) to pile on (pile up) again:


click for larger view

The game went 28 ... Rxc2 29. Bxa7 and White had QB vs RR. If Black played 28 ... Rxb5, White has the In-Between Move (Zwischenzug) 29. Rxc8+ Kf7 followed by 30. Bxa7 leaving White up a Bishop. Note the whole idea would have failed if the White Rook was on f1 instead of f2, as then ... Rxc1 either time would be check.

Good luck with your chess. =)

Aug-04-16  JohnBoy: I believe it would have been smarter of black to just give up the queen w 27...Rxc2 28.Bxa7 Rc1+ 29.Kf2 Ra8. This is the only like I can find that gives black any play at all.
Aug-04-16
Premium Chessgames Member
  chrisowen: Goes c5 chrome why then von neck rev keys events won re come x i c2 cob c8 choremens won it i vet rev veg often key neck over b5 besets come x i c2 cob done bys new ohm bog con doz it a7 etcetera it ok rev oh eg cows by code it alcovers rev by gowrot gems ten pit pfennig cove c5 covers hent er bent fence rev bottle then bod other bend rev boot vet veg clocks won lo qu it a7 etcetera it ok rev oh eg cows by code it alcovers rev by lo go key to nip it pfennig cove c5 covers hent fence bottles by rev goes c5 covers hew west off by come x i f2 off dome x i c2 cob won etcetera it a7 etcetera it ok rev besets qu mens by code it alcovers rev by whoosh offers fence eve ohm bog con doz it a7 it etcetera it ok rev oh eg cows by code it alcovers rev bot tod dot clocks clerk lo qu e3 by b5 besets won bod quod won by forges bod clod hop pit pfennig cove c5 covers hents effort by fly bottle by e3 go betroth eve by deo fob fob etcetera it a7 etcetera it ok rev oh eg cows code it alcovers rev bod o delve x i by by dovemen by cod eggs i x eg ebbs won vent bet it afford rev by co x is deform i x do vent rev dent fence bod flow by x i do by do vets exactly x it able overs vet by covers i x c2 cob vent b5 besets love men eyes nods besets by cod bends lovely why x it able x afford i x et al it alink vet by dog by don goes c5 covers qu it in 7a it alcovers rev qu vest deck c5 creeps crepes o v rev cheeps covers covert by f2 off lent by it ables rev grab vote bod doddy men let by vows it a7 eg cows code it alcovers etc rev by vest c5 covers;
Aug-04-16
Premium Chessgames Member
  chrisowen: 26.Rxc5 Rxc5 27.Rc2 Rfc8 dove by choresmen by convert 27...Rxc2 cob come b7 7a it alcovers etcetera it etc fly it ok rev von neck rev tent bon key nip it pfennig rev tenet by behemoth 28.Qb5 Rxc2 29.Bx7 Rx2 won qu it act vet rev bod coot 30.Bc5 covets blow cont c5 covers bot lows keep lo key to nip it pfennig rev vent enter boot vet front ebony no moves by won b4 beset reek wreck keep it pfennig bet enter boot vet klerk kernel creche key tonk kestrel free key joke lerk kostet einheit?

23 it pfennig deck govern ber ber rev qu it in b5 besets won drench by cosy b5 beyond keys effort effect effront keys c5 covets;

Aug-04-16  petemccabe: kholmover.
Aug-05-16
Premium Chessgames Member
  swclark25: thanks for the replies tpstar and Shams!
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