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Ivan Salgado Lopez vs Peter Acs
Gyorgy Marx Memorial IX (2011), Paks HUN, rd 10, Jun-27
Sicilian Defense: Richter-Rauzer. Neo-Modern Variation (B68)  ·  1-0

ANALYSIS [x]

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sac: 35.Rxe4 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
Jun-27-11  msoewulff: white to play and win after move 34.
Aug-01-15
Premium Chessgames Member
  Penguincw: Saturday puzzles just make me...

White did attack d5 3 times (only defended twice) though, so that could've been played (Rc5 though).

I also see that there <is> a "puzzle" after white's 34th move.

A pawn race where white queens first, but black queens with check.

Aug-01-15  diagonalley: <diagonalley>: nul points :-(
Aug-01-15  morfishine: I had <25.g6> but figured Black must trade down: 25...Bxe5 26.gxh7+ Kxh7 27.fxe5

For me, as usual, its hard to find the best moves for the losing side

*****

Aug-01-15
Premium Chessgames Member
  patzer2: <Penquincw> < Penguincw: ...I also see that there <is> a "puzzle" after white's 34th move. A pawn race where white queens first, but black queens with check.> Yes 35. Rxe4! is a very instructive move.
Aug-01-15
Premium Chessgames Member
  patzer2: Got 25. g6! fxg6 26. Nxg6 to for my Saturday puzzle solution, but didn't consider 25...Qg7 26. Qe2! .

Black's decisive mistake was 24...Bd6? Instead, 24...Bc5 25. Rhe1 holds with reasonably good drawing chances.

In the follow-up, Fritz indicates White could have improved with 30. Rxd5 and Black could have put up much more resistance after 30. cxd5 with 30...Ne4 to .

Aug-01-15  dfcx: The focal point seems to be the d5 pawn. But after 25.cxd5 exd5 26.Qxd5 Qxd5 27.Rxd5 Bxe5 28.fxe5 Rxc4 white has not gained any advantages.

Thus
25.g6 fxg6 26.Nxg6 hxg6? 27.Qxg6+ Qg7 28.Qxe6+ gets a bishop and 3 pawns for a knight and a pawn.


click for larger view

So black can't take the g6 pawn right away.
25.g6 Bxe5 26.gxh7+ Kxh7 27.fxe5 Rg8 28.Bg5 Rg6 29.Qh3+ Kg8 30.Bf6 Kf8


click for larger view

and it looks very good for white.

Aug-01-15
Premium Chessgames Member
  whiteshark: Missed <27.Qe2!> in my calculation and therefore looked/opted for a worse 1st move. :(
Aug-01-15
Premium Chessgames Member
  kevin86: Both sides queen, but white is a piece up!
Aug-01-15
Premium Chessgames Member
  Once: Ah, now that is clever. Too clever for me. The obvious line is the g6 repeater, like a machine gun hosing down the g6 square: 25. g6 fxg6 26. Nxg6 hxg6 27. Qxg6+ Qg7 28. Qxe6+ Kh8 29. Qxd6


click for larger view

White has won a brace of prawns and is threatening more carnage, particularly as the black king is exposed and the Na6 is offside.

But Black finds a resource with 26...Qg7


click for larger view

It seems that the impudent white knight is pinned against the Qg2. As f4 and h4 are both occupied, the knight doesn't have a safe retreat square which also protects the white queen.

But White's excellent 27. Qe2 sidesteps the threat to his knight. Now 27...Qxg6 would be punished with either rook moving to g1. Nasty. And 27...hxg6 allows white to play his Qxe6+/Qxd6 idea from the "plan A" line.

Clever, clever stuff. Stirring attack, stubborn defence, smart sidestepping. I snatched at it, assuming that the g6 reloader was the key idea, and didn't see the Saturday wrinkle of 26...Qg7 27. Qg7. Maybe I would have seen it with a longer think, maybe not.

Excellent puzzle.

Aug-01-15
Premium Chessgames Member
  agb2002: The material is identical.

Black threatens Bxe5 followed by Rxc4.

The attempt to win a pawn with 25.cxd5 is met with 25... Bxe5 26.fxe5 Rfd8.

A more interesting option is is 25.g6:

A) 25... hxg6 26.Nxg6

A.1) 26... fxg6 27.Qxg6+

A.1.a) 27... Kh8 28.Rhg1 Bxf4 29.Bf6+ Rxf6 30.Qxf6+ Kh7 31.Rd3 wins.

A.1.b) 27... Qg7 28.Qxe6+ Kh8 (28... Rf7 29.Qxc8+ wins; 28... Qf7 29.Rhg1+ Kh7 (29... Kh8 30.Qh6+ and mate in three) 30.Qxd6 as in the line) 29.Qxd6 wins two pawns with a much better position.

B) 25... fxg6 26.Nxg6 Qg7 (26... hxg6 transposes to A.1) 27.Be7 (27.Ne7+ Bxe7 28.Qxg7+ Kxg7 29.Bxe7 Rfe8 followed by 30... Rxc4 loses a pawn)

B.1) 26... Bxe7 27.Nxe7+ Kf7(h8) 28.Qxg7+ Kxg7 29.Nxc8 Rxc8 30.cxd5 exd5 31.Rxd5 + - [R+P vs N].

B.2) 26... hxg6 27.Bxd6 followed by Be5, Rhg1, Rd3, Rh3, etc. seems to give White a large advantage.

B.3) 26... Qxg6 27.Qxg6 hxg6

B.3.a) 28.Bxd6 Rfd8 29.Be5 dxc4 30.Rdg1 Kf7 31.Rg3 followed by Rhg1, Rh3, Rh7 seems to give more than enough compensation for the pawn.

B.3.b) 28.Bxf8 Kxf8 29.cxd5 Bxf4 30.dxe6, unclear [R+P vs B+N].

C) 25... Bxe5 26.gxh7+ followed by fxe5, Bf6, Rhg1, etc. looks very good for White.

I don't have time for more.

Aug-01-15  BOSTER: When you see the pos black to play 24...
the Q is.
Can white push g6 when white bishop hanging, or he has to waist a tempo. Maybe 24...Nc5 was the answer.
Aug-02-15  mel gibson: Such an interesting game.

After 26. Nxg6 black is in diabolical trouble.

Jul-18-19
Premium Chessgames Member
  Messiah: Excellent game, I enjoyed it very much.
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