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Alexander Grischuk vs Evgeny Bareev
ECC (2001)  ·  French Defense: Advance Variation. Paulsen Attack (C02)  ·  1-0
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Given 36 times; par: 17 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Jul-10-09  butilikefur: whoa... I was wrong.
Jul-10-09
Premium Chessgames Member
  agb2002: Black has 2B+P for 2N but his king remains in the center. Therefore, remove the defenses with 15.Nxb5 Qxb5 16.Nxf7

A) 16... Rxf7 17.Rxe6+ Be7 (17... Rd7 18.Qxf7+) 18.Rxe7+ Kxe7 19.Re1+

A.1) 19... Kf8 20.Qxh6+

A.1.a) 20... Kg8 21.Qg5+

A.1.a.i) 21... Rg7 22.Qxd8+ Kf7 23.Re7+ Kg6 (23... Kf6 24.Rxb7+) 24.Qd6+ and 25.Rxg7 + -.

A.1.a.ii) 21... Kf(h)8 22.Qxd8+ Kg7 23.Re8 (threatening 24.Rg8+ Kh6 25.Qg5#) + -. For example 23... Rc7 24.Rg8+ Kf7 25.Rf8+ Kg7 26.Qf6#, or 23... Rf5 24.Rg8+ Kf7 (24... Kh6 25.Qh4+ Rh5 26.Qf6#) 25.Rf8+ Kg6 (25... Ke6 26.Qc8+) 26.Qd6+ Kg5 27.Rg8+ Kh5 28.g4+.

A.1.b) 20... Rg7 21.Qf6+

A.1.b.i) 21... Kg8 22.Qxd8+ transposes to A.1.a.i.

A.1.b.ii) 21... Rf7 22.Qxd8+ transposes to A.1.a.ii.

A.2) 19... Kd6 20.Qxf7 (threatens 21.Re6#)

A.2.a) 20... Qd7 21.Qf6+ Kc7 22.Re7 + -.

A.2.b) 20... Rd7 21.Qf6+ Kc7 22.Rc1+ Kb8 23.Qf8+ Rd8 24.Qxd8#.

B) 16... Qxb2 17.Nxd8+ Kxd8 18.Qe5 (threatening Qxe6, Rac1 and Qb8+) Rg6 19.Rac1 + -.

C) 16... Qb6 17.Nxd8+ Kxd8 18.Qe5 + -.

Jul-10-09  eblunt: This one seemed easier than some of the earlier ones in the week. The e6 pawn is an obvious target, and the deflecting the queen with Nxb5 followed by Nxf7 and Rxe6+ gives an obvious strong attack for a very small amount of sacrifice ( N for 2P ). I saw the weaker continuation of Rae1 double attack on the pinned B but I'm happy enough with that.
Jul-10-09  goodevans: <Shyfe: ... 15. Nxf7 Rxf7 16. Nxb5 also wins, but less accurate as 16...Rdd7 gives a score of "only" +1.4 in Fritz>

So I guess I count as "only" nearly right today!

Jul-10-09  gropek: Material is even, and in spot f7 knight and queen are atttacking it. So if i could take over the rook that is guarding f7... (that is my first thought) Then i saw that if i take the pawn with the horse, the rook will need to take it, and the rook is pinned to the king. Now if a take the pawn with my rook, the king will have to leave the defence, and i will win the rook, and the game in a few turns. The only problem is the queen, that is attacking the spot that i need to take with my rook. So, first, i need to take over the bishop with my horse, and after the queen takes it, i go into the plan: so, i think the best moves are:

15. Nxb5 Qxb5
16. Nxf7 Rxf7
17. Rxe6+ --- (now)
~~~~~
17 ... Be7
18. Rae8 (taking the bishop and after the rook).

~~~~~
17 ... Kd7
18. Qxf7+(win the rook) Kc8
19. Rc1+ now if
19... Kb8
20. Qc7+ Ka8
21. Qxd8# and {if
19... Bc5
20 dxc5 (win bishop)

Ok, that is it, time to check...
---

OH MY GOD! MY FIRST THOUGHT WAS EXACLY THE RIGHT ONE! I GOT IT IN A FEW SECONDS. :)

I dont know if this one was easier, but im feeling pretty well, because i missed yesterday, but i did this one, that pretends to be harder... =D

Time spent: less than 1 minute, just looking the screen, without seting up chessboards and stuff.

Jul-10-09
Premium Chessgames Member
  David2009: I missed 15 Nxb5 going instead for 15 Nxf7!? Rxf7 16 Nxd5 to be followed by Rxe6+. If the BQ captures the Re6 there follows Nc7+ and NxQe6. This seems to win but I have no way of checking my analysis for flaws (e.g. by Fritz which I don't have).

<dzechiel: will someone explain why black resigned when he did?> Beats me! there is a lot of play in the position.

Jul-10-09  The Rocket: solved it!:P
Jul-10-09  randomsac: I guessed the solution correctly today. I saw that I could bust through by moving the black queen away from e6 and that I could barge through with Rxe6 (after removing the pawn with Nxf7). Then I figured that I could just plow through after Rae1. I felt that today's puzzle was rather simple.
Jul-10-09  CHESSTTCAMPS: Black is up a meaningless doubled pawn, but white has obvious pressure on the black king with the well-placed Qh5, Ne5, and Re1. This is an obvious setting for a demolition sacrifice to hit the base of the pawn chain (usual weak point, f7) and break up the central pawn shelter:

15.Nxf7! Rxf7

The double threat of Nxd8+ and Nd6+ makes acceptance mandatory. At this point I initially considered the weak followup Nxd5 and decided it didn't work. Instead, white should continue thematically - divert the queen from defense of e6.

16.Nxb5 Qxb5
17.Rxe6+ Be7

Again forced: after Kd7 18.Qxf7+ Kc8 19.Rc1+ Kb8 20.Qc7+ forces mate

18.Rxe7+!

The key move! Never give the defense a tempo to get organized if you can avoid it.

18... Kxe7
19.Re1+

A strong intuitive player may find this line by instinct, but it's really necessary to be able to foresee this position and its consequences from the problem position. A careful calculation shows that white wins in all variations:

A) 19...Kf6 20.Qxh6+ Kf5 21.Re5+ Kg4 22.h3#

B) 19...Kd6 20.Qxf7 (threatening Re6# and Qe7+) Qd7 21.Qf6+ Kc7 22.Re7 wins

C) 19...Kd7 20.Qxf7+ Kc8/c6 21.Rc1+ Kb8/b6/d6 22.Qc7+ wins

D) 19...Kf8 20.Qxh6+ Kg8 21.Qg5+ Kf8 22.Qxd8+ Kg7 23.Re8! and black has no good defense to Rg8+ e.g. 23...Kg6 24.Rg8+ Kf5 (Rg7 25.Qd6+ Kf7 26.Rf8#) 25.Qg5+ Ke4 26.Qe3+ Kf5 27.Rg5+ Kf6 28.Qe5#

D.1) 20...Rg7 21.Qf6+ Kg8 (Rf7 22.Qxd8+ transposes to the main D line) 22.Qxd8+ Kf7 23.Re7+ Kg6 (Kf6 24.Qf8+ or Rxb7+) 24.Qd6+ K-moves 25.Rxg7(+) wins

Got the main idea here quickly but missed Wednesday's - go figure.

Jul-10-09  muralman: Well, ummmm that wasn't easy....... ;)
Jul-10-09
Premium Chessgames Member
  kevin86: First-divert the queen;second-sac the knight to remove the defender of the keystone pawn at e6;third-capture at that square and stand back as black's position crumbles.
Jul-10-09
Premium Chessgames Member
  playground player: "Deflect the Queen and make the scene!"--attributed to Maynard G. Krebs
Jul-10-09  gofer: <dzechiel: will someone explain why black resigned when he did?> <David2009Beats me! there is a lot of play in the position>

I think he probably resigned because...

17 ... Kd7 allows 18 Qxf7+ and 19 Rc1+ coming, so

17 ... Be7 18 Rxe7+ Kxe7 19 Re1+ is all forced

19 ... Kd7 20 Qxf7+ losing quickly
19 ... Kf6 leads to mate after Qxh6+
19 ... Kd6 20 Qxf7 threatning 21 Re6# which is impossible defend without losing queen or rook (i.e. 20 ... Qd7 21 Qf6+ Kc7 22 Re7 loses queen for rook, 20 ... Kc6 21 Re6+ Rd6 22 Qe8+ loses the rook and 20 ... Rd7 21 Qf8+ Kc7/Kc6 22 Rc1+ Kb6 23 Qf6+ loses queen for rook)

So black only really has one option...

19 ... Kf8 (as you proposed, but now black must try to save at least one of his rooks and I think the only option is as follows)

20 Qxh6 Kg8 (Rg7 loses)
21 Qg5+ Kf8/Kh8
22 Qxd8+ Kg7
21 Qg5+ Kh8 (Kf8 loses quickly to 22 Qh6+ Kg8 23 Re5 swapping off all major pieces and leaving black 2 pawns down)

22 Qe5+ Kg8
23 Qe8+ swapping queens into a won end game...

Jul-10-09  nevski: Excuse-me, but Bareev played like an amateur.
Jul-10-09  WhiteRook48: YES! Correct! Ha ha ha ha!
Jul-10-09
Premium Chessgames Member
  whiteshark: A bad day for one of the best FRENCH players.
Jul-10-09  CHESSTTCAMPS: <goodevans: <Shyfe: ... 15. Nxf7 Rxf7 16. Nxb5 also wins, but less accurate as 16...Rdd7 gives a score of "only" +1.4 in Fritz> So I guess I count as "only" nearly right today!>

I made the same error. After finding the right continuation, I failed to clean up the move order to make things easier. Even if one fails to see that 16... Rdd7 is an ornery defense, one should always choose the order of moves that reduces the options of the defense.

Jul-10-09  Vincere: Ha!! i made it, fist time I'm able to solve a difficulty one.
Jul-10-09
Premium Chessgames Member
  David2009: <CHESSTTCAMPS: [snip] 15.Nxf7! Rxf7 [snip] At this point I initially considered the weak followup Nxd5 and decided it didn't work.> Why does this not win immediately (it was my proposed line)? Time to set up the position and look:


click for larger view

Because of 16...Rxd5! (but not Q moves?? Rxe6+) 17 Qxd5 Re7 and the position is unclear. SIGH- another won position blundered away. I completely failed to solve yesterday's puzzle - not my week.

Jul-10-09  gofer: 15 Nxb5 Qxb5
16 Nxf7 Rxf7
17 Rxe6+ Be7
18 Rxe7+ Kxe7
19 Re1+ Kf8
20 Qxh6 Kg8
21 Qg5+ Kf8/Kh8
22 Qxd8+ Kg7

The above was pretty easy to see, but I missed 23 Re8! I played this out on Fritz and he found this finish, so no wonder black resigns. At this point Fritz recons that continuing with h6 is pointless and giving up the queen with Qxe8 is the best option!

23 Re8 h6
24 Rg8+ Kh7
25 Rh8+ Kg7 (to avoid mate in 10)
26 Qg8+ Kf6
27 Qg3 Ke7 (to avoid mate in 6)
28 Qg5+ Kd7
29 Qe8+ mating in 10 more

Jul-10-09  totololo: I don't see any merit in the today puzzle. Deviation of the Queen and attack of the weak f7 with a sac against un corrrelated pieces is obvious and mechanic .... no "brainer" .... I was expecting more ....
Jul-10-09  neilmcmurdo: I disagree with posters who've said this is a 'no-brainer'. The main line has to be seen through to 18. Rxe7+ to justify the sacrifice.

I need hardly add that players who routinely sacrifice minor pieces for two pawns and a whiff position, without calculating the variations properly are unlikely to be winning players...

Jul-10-09
Premium Chessgames Member
  johnlspouge: < <neilmcmurdo> wrote: [snip] The main line has to be seen through to 18. Rxe7+ to justify the sacrifice. >

The variation with 18.Rae1 et seq., although not as good as 18.Rxe7+, is easily winning and therefore justifies the sacrifice.

Jul-11-09
Premium Chessgames Member
  TheBish: Grischuk vs Bareev, 2001

White to play (15.?) "Difficult"

I saw the various elements of the position (which come together in the first three moves), but for some reason it took me a while to put it all together. Maybe because I finally looked deeply enough!

15. Nxf7!

Since White threatens both 16. Nxd8 and 16. Nd6+ Kd7 17. Ndxb5, the "Greek gift" must be accepted.

15...Rxf7 16. Nxb5 Qxb5 17. Rxe6+ Be7 (forced) 18. Rxe7+! (key to the combo) Kxe7 19. Re1+ and now:

A) 19...Kf8 20. Qxh6+

A1) 20...Rg7 21. Qf6+ Kg8 (or 21...Rf7 22. Qh8#) 22. Qxd8+ Kf7 23. Re7+ Kg6 24. Qd6+ Kh5 25. Rxg7 and mate shortly.

A2) 20...Kg8 21. Qg5+ and now:

A21) 21...Rg7 22. Qxd8+ transposes to A1

A22) 21...Kh8 (or Kf8) 22. Qxd8+ Kg7 23. Re8! (threatening both 24. Qg5# and 24. Rg8+ Kh6 25. Qh4#) and the attack continues, e.g. 23...h6 24. Rg8+ Kh7 25. Rh8+ Kg6 26. Qg8+ Kf6 (or 26...Rg7 27. Qe6+ Kg5 28. Qxh6+) 27. Rxh6+ Ke7 28. Qg5+ Kd7 29. Qg4+ Kc7 30. Qe6 and White can simplify at any time, since he is 3 pawns up!

B) 19...Kf6 20. Qxh6+ Kf5 21. Re5+ Kg4 22. h3#.

By the way, I did the early analysis in my head (until the win was clear), but switched over to an analysis board to work out the variations.

May-16-11  Llawdogg: That was a quick one!
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