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Diego Flores vs Teimour Radjabov
FIDE World Cup (2005), Khanty-Mansiysk RUS, rd 1, Nov-27
English Opening: King's English Variation. Botvinnik System (A26)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Dec-08-08
Premium Chessgames Member
  gawain: I saw the knight fork right away--as I was supposed to.

The kibitzing about White's squandered chances led me to replay the entire game to see what they were. Indeed White missed great chances, starting at move 30 where the surprising 30 axb7 (intending to follow with Rb3) would have won according to Hiarcs analysis. After 30 axb7:


click for larger view

If Black takes on b7 then 31 Rb3 cannot be answered with b4 on account of 32 Bxb4 and White breaks through with overwhelming force. If black plays 30...b4 then 31 Rb3 still wins.

Another great missed chance for White was 38 Qe2. This threatens 39 Qe3+ just as White's actual move 38 Qd3? did, but is not answerable with the check on the second rank.

Dec-08-08
Premium Chessgames Member
  TheaN: Monday 08 December 2008

<49....?>

White: a6, e4, f5, h3, Ne6, Bg4, Rf2, Qd6, Kg2

Black: h4, Nf6, Re7, Rg8, Qe1, Ka8

Material: /+\ B+3P/R

Candidates: <[Qxf2†]>

-ML-
This position is insanely dynamic and White seems to have his forces, albeit the useless Bg4, well placed with three pawns(!) compensation for the exchange and a quite overwhelming position. Radjabov, however, bluntly throws a tactic in here that involves a simple fork to decide the game... or so it seems.

<49....Qxf2!> and suddenly the White combinations fall apart like a house of cards. Accepting this sacrifice tends to lead to an unwillingly useless position for White.

/A\
<50.Kxf2 Nxe4† 51.Kf3 Nxd6 > and Black's forces, in the end, work better than the White forces. So would not accepting the sacrifice, and thus giving away the Rook without the 'Queen trade' fair better for White?

/B\
<50.Kh1?! Rd7!> clearing both the Rook being en prise and threatening another nice combination. In general, that would happen if the Queen moves out of the Rook's fire without Qc5† and a trade, and aside giving away the full Queen with Qxd7 or Qc7 as Black's Queen is still on f2.

/BA\
<51.Qc6> Qe5 accomplishes the same for Black without a mate threat from White, so c6 is better.

<51....Rd1†! 52.Bxd1 Rg1‡ 0-1> which is another nifty combination. So White should, with a hopeless position to follow, still trade Queens.

/BC\
<51.Qc5† Qxc5 52.Nxc5 Rd1† > and Nxg4 with all the pawns dropping next. A tad bit complex for Monday.

Time to check.

Dec-08-08
Premium Chessgames Member
  TheaN: 1/1

How well does Rd7 fair? I believe it's pretty forced to an easy win for Black, and White can go horribly wrong with Qc6 or Qe5.

Dec-08-08
Premium Chessgames Member
  TheaN: Rd7 fairs very well I see now, it's the best move after Kh1 together with Rh7?!, but of course a typo in my follow up makes it rather pointless, after the Queen trade, it's of course no Rd1†, I copy pasted this: I meant <52....Rd2 >.
Dec-08-08
Premium Chessgames Member
  johnlspouge: < <TheaN> wrote: Rd7 fairs very well I see now, it's the best move after Kh1 >

I do not have an engine right now, but ..Rd7 looks good to me. In such a complicated position, I feel compelled to see a combination through to quiescence, even if it wins a clear R on the way.

Dec-08-08
Premium Chessgames Member
  Patriot: 49...Qxf2+ 50.Kxf2 Nxe4+ and 51...Nxd6 is simple tactics.

<TheaN: How well does Rd7 fair? I believe it's pretty forced to an easy win for Black, and White can go horribly wrong with Qc6 or Qe5.>

Yes I think if white declines the queen, Rd7 is simple enough. At this point black is technically winning so even after 51.Qc6 if black didn't have 51...Rd1+! black is still winning. If nothing else, he needs to make sure white has no counterplay (like a draw by perpetual) and his material force should win. I really like other's ideas to force a queen trade and simplify.

But is 50.Kh1 (declining the queen) worth analyzing? I noticed that other good analysts on this site like <dzechiel> did not look at declining the queen, while <johnlspouge> did. Interesting...

Dec-08-08  cornholio denali: nice in-between move there on 48...Rg8+.

Dec-08-08  gtgloner: 49. ... Qxf2+ seals it.
Dec-08-08  Vishy but not Anand: The fastest and simplest way to win a piece is 49. .... Qxf2+, followed by 50.... Nxe4+ then 51.....Nxd6

But another way to win even more brilliant is

49.....Rxg4+!
50 hxg4 (no option the game will be finished much earlier if not taken)h3+!

Options are

51 Kf3
51 Kg3
51 Kxh3
51 Kh2 (mate after two moves)

Lets take a look Kf3 first

51 Kf3 Qxe4+
52 Kg3 Qe3+! (not Qxg4+ its a losing move)
53 Rf3 (not Kh4 or Kh2 or Kxh3 otherwise it will be mated soon) Ne4+ 54 Kh2 Qe2+ and mate after 1 or 2 moves.

What if Kg3...
51 Kg3 Qe3+!! (Ne4+ is also a clear win of white queen but will take a little longer to finish the game, remember, dont hurry to eat the white queen, its always there for free 52 Rf3 (no option else will get mated soon) Nxe4+ (now the timing of Ne4+ is better) 53 Kh2 (other move will get mated one move earlier) Qe2+ and mate in 1 or 2 moves.

Now Kxh3 a bit longer but still winning!
51. Kxh3 Rh7+
52. Kg2 (not Kg3 at it will be mated soon by 53 Qe3+,Kg2, 54 Kg1,Qh3+ then 55 Qh1 mate or if Rf3, 53 Nxe4+,54 Kg2 Qe2+ 55 Kg1 Qe1+ 56 Kg2 Qh1 mate or 56 Rf1 Qe3+Kg2 57 Qh3+ Kg1 58 Qh1 mate) Qh1+ 53 Kg3 Qh4+!(♘xe4+ also wins the queen but a still a long way to win)<<Once> And here Fritz announces mate in 17>. Mr.Once, there is a faster way than Fritz analysis for grabbing the queen and mate in 17. You don't need so many moves to mate...

Now we have 2 options Kf3 or Kf4

54 Kf3 (not Kg2 else it will be mated in two moves by Qh3 followed by Qh1 mate. Qxg4+ 55 Kf3 Rh3+
56 Kd4 (if Kd2 then Ne4+ then wins the queen and will get mated in less than 7 moves) Qd1+ (not Qxe4+ there is no mate in that move) 57 Kc5 (if Ke5, Ng4+ then followed by Qxd6+,Kxg4 Qg3 mate) Nxe4+ 58 Kb5 Rb3+
59 Ka5 Qa1+ and mate soon (if 59 Ka4 Nc3+ then 60... Qa1+ and mate soon, if Kc4 Rc3+, Kb5 (if Kb4 Qxd6 and mate soon) NXd6+ and mate soon

If 54 Kf4...

54 Kf4 Qxf2+
55 Ke4 Nxg4+
56 Kd5 Qa2+
56 Kd4 (if Kc6 Qa6+ 57 Kc5 Qa5+ 58 Kc6 Ne5+ and white queen is gone and will be mated soon or 58 Kd4 Qd2+ If 59 Kc4 Ne3+ and mate soon or 59 Kc5 Qc3+ 60 Kb5 (if Kd5 Ne3 mate) Rb7+ and mate in 2)

(if 55 Kg5 Qh5+ don't hurry on Ne4+ to get the queen it is always there for free, I am more after to mate 56 Kf4 Qh2+ 57 Kg5 Nxe5 and mate in 1 or 57 Ke3 Rh6 and mate soon)

Dec-08-08  lord1412: in my opinion, i feel 49... Rxg4+ is more accurate

after 50.hxg4 Qxf2!
if here 51.Kh1 then 51... Qf1+ followed by ...Nxg4+

For 49... Qxf2 50.Kh1 , white has drawing chances due to black's exposed king

correct me if im wrong..

Dec-08-08  lord1412: continuation to my previous post,

after 50... Qxf2
Black has several options, n all leads to mate or leads to a won ending of R+N vs N

For 51.Kxf2 then 51... Nxe4+
wins the queen n a won endgame

For 51.Kh3 then 51... Qf3+
here if 52.Kxh4 then 52... Rh7 followed by Nxe4
and if 52.Kh2 then 52... Nxg4 followed by mate

Dec-08-08
Premium Chessgames Member
  YouRang: How funny, I was about to comment on what an interesting puzzle this was, although a little trickier than normal for a Monday.

Then I looked at the game and saw that it had a much simpler solution than the one I found.

I zeroed in on 49...Rxg4+! 50.hxg3 h3+! and white is lost, even though our rook is threated to be captured with check by white's queen.

If, and if 51.Kxh3, then 51...Rh7+ (saving the rook with check) 52.Kg2 Qh1+ 53.Kg3 Nxe3 forking K+Q.

Of course, if 51.Kg3, then 50...Nxe4+ forks K+Q right away.

Between the two solutions, I sort of like this one better since we end up a full queen to the good.

Dec-08-08
Premium Chessgames Member
  spreadsanity: I found this line as the solution, Shredder agreed with me:

49... ♖xg4+ 50. hxg4 h3+ 51. ♔xh3 ♖h7+ 52. ♔g2 ♕h1+ 53. ♔g3 ♘xe4+ 54. ♔f4 ♘xd6

which leaves white in this position:


click for larger view

As a couple of others have commented this is a little stronger than the position after 49...Qxf2+, although obviously both win.

Dec-08-08  Vishy but not Anand: < spreadsanity: I found this line as the solution, Shredder agreed with me: 49... xg4+ 50. hxg4 h3+ 51. xh3 h7+ 52. g2 h1+ 53. g3 xe4+ 54. f4 xd6

which leaves white in this position:

click for larger view

As a couple of others have commented this is a little stronger than the position after 49...Qxf2+, although obviously both win.>

Black wins at almost all variation but I'd rather delay the Ne4+ due to white Queen is always free in there. I'd rather move Qh4+ leading to a near mate. See my previous post analysis.

Dec-08-08  Vishy but not Anand: < lord1412: in my opinion, i feel 49... Rxg4+ is more accurate> Yes, I also feel it is better move but your continuation is unfortunately incorrect...

<after 50.hxg4 Qxf2!
if here 51.Kh1 then 51... Qf1+ followed by ...Nxg4+

For 49... Qxf2 50.Kh1 , white has drawing chances due to black's exposed king>

after you move 50. hxg4 Qxf2?? should be h3+! White has no drawing chances at all due to white will never have a chance to attack.

<correct me if im wrong.. > You are now corrected :)

Dec-08-08  Vishy but not Anand: < lord1412: continuation to my previous post,

after 50... Qxf2
Black has several options, n all leads to mate or leads to a won ending of R+N vs N>

It is the very least material advantage and Rxg4+ sacrifice doesn't make sense if you will just continue with Qxf2+. You just move it on 49. Qxf2+ as the solution says then you have your two rooks and and knight vs. N+B then bigger advantage. But if you take 49. Rxg4 then it should be followed by a3+! that is the proper continuation.

Dec-08-08  Vishy but not Anand: <<Once>: Interestingly, Fritz finds that I dismissed 49...Rxg4+ much too hastily. Have a look at this:

49... Rxg4+ 50. hxg4 h3+ 51. Kxh3 Rh7+ 52. Kg2 Qh1+ 53. Kg3 Nxe4+

And here Fritz announces mate in 17. >

<< spreadsanity:> I found this line as the solution, Shredder agreed with me: 49... xg4+ 50. hxg4 h3+ 51. xh3 h7+ 52. g2 h1+ 53. g3 xe4+ 54. f4 xd6 >

Fritz and Shredder Chess programs (based on what you have presented) are giving simplified queenless solution and probably mate in 17(??). Quite long, I preferred mating threat first in a shortest possible moves than to take the queen first.

Dec-08-08
Premium Chessgames Member
  TheaN: Btw, for those who might not have read my whole post and thought I meant 49....Rd7? instead of 49....Qxf2†! 50.Kh1!? Rd7!... after 49....Rd7?, White at least saves himself with 50.Qc5†, but Rybka immediately ensures a White win:

<49....Rd7? 50.Qc5† Ka8 (Kxa6 51.Ra2† with mate, Kb8 51.Rb2† with mate) 51.Nc7† Rxc7 (Kb8 52.Rb2† with mate) 52.Qxc7> and now Black actually decreases the damage with 52....Rxg4† (Qxe4† 53.Kh2 ) but is lost. Instructive to see that my initial verdict about the White position was correct.

Dec-08-08  Vishy but not Anand: < TheaN: Btw, for those who might not have read my whole post and thought I meant 49....Rd7? instead of 49....Qxf2†! 50.Kh1!? Rd7!... after 49....Rd7?, White at least saves himself with 50.Qc5†, but Rybka immediately ensures a White win: <49....Rd7? 50.Qc5† Ka8 (Kxa6 51.Ra2† with mate, Kb8 51.Rb2† with mate) 51.Nc7† Rxc7 (Kb8 52.Rb2† with mate) 52.Qxc7> and now Black actually decreases the damage with 52....Rxg4† (Qxe4† 53.Kh2 ) but is lost. Instructive to see that my initial verdict about the White position was correct.>

49. Rd7 should not have 1 but deserve 2 question marks. Yes, your initial verdict is a help loss for black. It is very instructive on how to lose a winning position.

Dec-08-08
Premium Chessgames Member
  ZUGZWANG67: At first, I was really strugling with the position, as I was wondering how come it was so easy - 49. Qxe7 was too obvious to be the solution to the puzzle - I was surely missing something ! - until I found out that I mised the fact that it was Black to move ! Oh boy...

So let' s see. I noticed the fork against the Rf2 and the Qd6. Also, I saw that the Rf2 was already under attack, and only protected by the King. From there, it was easy to see the royal fork at e4.

But of course, White is not absolutely obliged to take back on f2. He could play 50. Kh1. At least, Black can get a perpitual, though, in a worse case scenario. But then, I saw 49. ...Qxf2+ 50. Kh1 Rd7(!!), pinning the white Queen, and supported by the possibility of an other pin a little later, against the white Bishop this time. For example: 51. Qc6 Rd1+ 52. Bxd1 Rg1+ mate.

I think it is about it...

Dec-08-08
Premium Chessgames Member
  DarthStapler: Got it easily
Dec-09-08
Premium Chessgames Member
  agb2002: The white queen and rook could be forked at once with 49... Nxe4 but the rook on e7 would be captured with check, so don’t give white any time with the very forcing 49... Qxf2+ and then fork the royal family: 50.Kxf2 Nxe4+ and 51... Nxd6.
Dec-09-08
Premium Chessgames Member
  kevin86: Easy Monday puzzle.

Lend a queen for a rook----then recapture the queen.

As pretty as it is effective.

Dec-09-08
Premium Chessgames Member
  SuperPatzer77: I completely agree with <Zugzwang67> and <TheaN> when it is 49...Qxf2+! (better than 49...Rd7??).

49...Qxf2+!, 50. Kh1!? Rd7!!, 51. Qc5+ Qxc5, 52. Nxc5 Rd2! (Setting up the mating net), 53. e5 Rb8! (Threatening to mate with 54...Rb1+, 55. Bd1 Rbxd1#), 54. Nb7 Rc8!, 55. Nc5 (forced) Rxc5

Thus, 49...Qxf2+! and 50. Rd7!! are the key moves. If 51. Qc5+, Black answers to this with 51...Qxc5, 52. Nxc5, Rd2!! (last tactical move)

SuperPatzer77

Jan-13-12
Premium Chessgames Member
  LoveThatJoker: I think that White started to go astray with 43. Ne6 loosening his fortress. I think that 43. Qxh5 was correct for if at this point Black plays 43...Rb1 44. Rf2 is a good defending move. And with only one Black pawn to worry about (quite a passive and not even passed one), White would have had no problem at least drawing here.

LTJ

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