Julio Becerra Rivero vs Justin Sarkar (2006)

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Julio Becerra Rivero vs Justin Sarkar
United States Championship (2006), San Diego, CA USA, rd 9, Mar-11
French Defense: Normal Variation (C10) · 1-0

ANALYSIS [x]

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< Earlier Kibitzing · PAGE 2 OF 2 · Later Kibitzing>
Aug-23-14		diagonalley: found the right theme, but didn't anticipate 23... K-B1, after which 24.R-K3 is a darn sight harder to fathom... hmmm, maybe half a credit (just)

Aug-23-14		al wazir: I went for 22. Bxf6, overlooking Bb4+. In the game line I think black's best shot after 24. Re3 is 24...a5 to foil that threat. If 25. Bxf6, then 25...Qxf6 26. Rf3 Qxf3 27. Qxf3+ Ke7. White has ♕+♙ vs. ♖+♗ and an easy win.

Aug-23-14		hoodrobin: <Robespierre: As is often the case when I attempt to solve Friday puzzles, I get the ACTORS correct but not the ORDER.> Have you lost your head? Today is Saturday! :-)

Aug-23-14		patzer2: My choice for this Saturday solution was 22. Rh4 , which actually matched Fritz 12's top choice up to 12 depth calculation. However, at 13 depth Fritz 12 found 22. Rxf6+!! I missed the winning Rook lift after 22. Rxf6+ Rxf6 23. Qxh5+ Kf1 (or 23...Kg2 24. Re3! ) 24. Re3! Without the Rook lift following 23...Kf1 24. Re3! or 23...Kg2 24. Re3!, Fritz indicates Black has level chances. In the final position of this pursuit combination and the game, it's mate-in-one after either 28...Kd4 29. c3# or 28...Kf4 29. g3# (also 28...Kf4 29. Bd2#, 28...Kf4 29. Rg4# or 28...Kf4 29. Qe3#).

Aug-23-14		Steve.Patzer: I must admit I am sleepy, but what occurs after 24....Be8?

Aug-23-14		perfidious: If our contributor <Robespierre> has indeed lost his head, at least he has not been responsible for others losing theirs!

Aug-23-14		morfishine: I had <22.Rxf6+> wandering down the road with 22...Rxf6 23.Qxh5+ at which point I couldn't find a reasonable move for Black And I tried a few: 23...Ke7, 23...Kf8, 23...Kg7 *** <Steve.Patzer> After 22.Rxf6 Rxf6 23.Qxh5+ Kf8 24.Re3 <24...Be8> White finishes with 25.Qh8+ Kf7 26.Rf3! (If 26...Rxf3 27.Qg7#) ***

Aug-23-14		Viennablue: Good Morning from Austria, did anybody take a closer look at 18. Rxe6+ ...? After 18...Bxe6 white wins, but after 18...Kf7, white has to ride on with 19. Rxf6+. From there on it gets foggy (at least for me).. But i like that type of attack-setup 😄

Aug-23-14		patzer2: <Steve.Patzer> <After 22.Rxf6 Rxf6 23.Qxh5+ Kf8 24. Re3 Be8>, <morfishine>'s 25. Qh8+ Kf7 26. Rf3!> wins easy. Also after 24...Be8 25. Qh8+ Kf7 (diagram below), click for larger view there is 26. Qh7+ Kf8 27. Bb4+ Qe7 (27...Qd6 28. Bxd6#) 28. Bxe7#.

Aug-23-14		inmate5: Hi <Viennablue>, nice to see your post, I was looking at exactly the same thing. For example: 18.Rxe6+ Kf7 19. Rxf6+ Kxf6 20. Qd4+ Qe5 21.Bc3 Qxd4 22. Bxd4+ Kg6 23. Bxh8 Bf5 24. Bd4 Rc8 and i.m.o. white has good chances to win, but it is not yet over.

Aug-23-14		patzer2: <Viennablue: Good Morning from Austria, did anybody take a closer look at 18. Rxe6+> After 18. Rxe6!? Kf7! (forced as you noted) 19. Rxf6+ Kxf6 20. Qd4+ Qe5 21. Bc3! Qxd4 22. Bxd4+ Kg6 23. Bxh8 = to it looks about level.

Aug-23-14		Viennablue: [inmate5, patzer: 23. Bxh8 = it looks about level] agreed. I played around with 21. Qh4+ (In your line) followed by 22. Re1. Good looking but nothing straightforward visible... And with a rook down white has to act quickly...

Aug-23-14		Penguincw: These puzzles are always easier than they look. :\| My guess was 22.Re5.

Aug-23-14		Refused: 22.? Two candidates 22.Rxf6+ and 22.Bxf6 Hum, I think I might need the Bishop for checks along the a3-f8 diagonal. Otherwise the Black King might escape to d6. So let's scratch Bxf6. And I can grow a new rook with Re3 to join the attack. So yeah, the Rook seems more expendable. 22.Rxf6+ Rxf6 23.Qxh5+ a)23...Kg8 24.Re3 ok, I can see where this is going. b)23...Kf8 24.Bb4+ Kg7 25.Re3 Be8 hum, ok, the Rook is no longer pinned, let's try something else b1)23...Kf8 24.Re3 Be8 24.Qh8+ Kf7 25.Rf3 that's better. b1a) 23.Kf8 24.Re3 Rf5 25.Bb4+ No Rest for the Wicked and it's light's out. The king is forced on the open g-file and rook g3 should end this whole affair.

Aug-23-14		David2009: Asleep at the wheel today. click for larger view I started out with 22.Bxf6 Rxf6 23.Qxh5+ Ke7 24.Qh4 Qh8 and realised that White is near-busted so looked instead at 22.Rxf6 Rxf6 23.Qxh5+ Ke7 24.Qh4 Qh8 same result - missing <An Englishman>'s refutation (2007!) of 23...Ke7 viz. 24.Bb4#. J Becerra-Rivero vs J Sarkar, 2006 White 22?

Aug-23-14		zanzibar: I missed the critical move, and didn't appreciate the importance of the cris-cross diagonals b4-f8 and a5-e8 in flushing the king out. A very nice quiet move involved.

Aug-23-14		Jimfromprovidence: I got the same solution as <al wazir>. Notice that the moves 24 Re3 and 25 Bb4+ are not interchangeable. If 24 Bb4+?, black has an escape square with 24...Kg7. If 25 Rg3 follows, then 25...Be8, below, leaves black ahead. click for larger view

Aug-23-14		kevin86: The rook is sparable as the other rook and queen can crush black.

Aug-23-14		agb2002: White is one pawn down. The rook on h6 looks overburdened it defends f6 and h5. This suggests either 22.Bxf6 or 22.Rxf6+. In the first case, 22.Bxf6 Rxf6 (22... Qa5 23.Bc3+; 22... Qc8 23.Bg5+) 23.Qxh5+ A) 23... Kf8 24.Qh8+ Kf7 25.Rxf6+ Qxf6 26.Qxa8 + - [R+P vs B] B) 23... Kg7(8) 24.Rg4+ Kf8 25.Qh7 Ke8 26.Rg7 B.1) 26... Qc8 27.Qh5+ Kd8 (27... Kf8 28.Qh8#) 28.Rg8+ wins the queen. B.2) 26... Qc7 27.Qh5+ and mate soon. B.3) 26... Bc6 27.Qh8+ Rf8 28.Qh5+ Rf7 29.Qxf7#. C) 23... Ke7 24.Rg4 Be8 and White's attack seems to vanish. ----- In the case of 22.Rxf6+ Rxf6 (22... Kg7 23.Rf8+) 23.Qxh5+: A) 23... Ke7 24.Bb4#. B) 23... Kf8 24.Re3 (threatens 25.Bb4+ Kg7(8) 26.Rg3+, 25.Bxf6 Qxf6 26.Rf3 and 25.Qh8+ Kf7 26.Qh7+ Ke8 27.Rg3) B.1) 24... Qb6 25.Qh8+ B.1.a) 25... Ke7 26.Qxf6+ Ke8 27.h4 with the threats Rg3 and h5, etc. looks winning. B.1.b) 25... Kf7 26.Qxf6+ Ke8 (26... Kg8 27.Qg7#) transposes to B.1.a. B.2) 24... Rf7 25.Qh8+ Ke7 26.Bb4#. B.3) 24... Rf5 25.Bb4+ Kg7(8) 26.Rg3+ wins. B.4) 24... Be8 25.Qh8+ Kf7 (25... Ke7 26.Bxf6+) 26.Qh7+ Kf8 27.Bb4+ and mate next. B.5) 24... Qe7 25.Bxf6 Qf7 (25... Qxf6 26.Rf3) 26.Qh8+ Qg8 27.Qh6+ followed by 28.Rg3 looks winning. C) 23... Kg7 24.Re3 C.1) 24... Be8 25.Rg3+ wins (25... Kf8 26.Bb4+; 25... Bg6 26.Qxg6+). C.2) 24... Qe8 25.Rg3+ as in C.1. C.3) 24... Qe7 25.Rg3+ Kf8 26.Qh8+ Kf7 27.Rg7#. C.4) 24... Qb6 25.Rg3+ Kf8 26.Qh8+ Ke7 (26... Kf7 27.Qxf6+ Ke8 28.Rg8#) 27.Qf6+ Kd6 28.Be5+ Kc6(5) 29.Rc3+ Kb4(5) 30.Rb3+ and 31.Rxb6 wins the queen. D) 23... Kg8 24.Re3 looks similar to C. For example, 24... Be8 25.Rg3+ B(R)g6 (25... Kf8 26.Bb4+) 26.Rxg6+ R(B)xg6 (else mate soon) 27.Qxg6+ Kf8 28.Bb4+ Qe7 29.Qf6+, etc. E) 23... Rg6 24.Qh7+ Rg7 (24... Ke8 25.Qxg6+ Kf8 (25... Ke7 26.Bb4#) 26.Bb4+ Qe7 27.Qf6+; 24... Kf8 25.Bb4+ wins) 25.Qxg7+ Ke8 26.Qg6+, etc. ----- I think I'd play 22.Rxf6+.

Aug-23-14		vajeer: I opted for 24.Qh8+ which appears to be winning as well. For examples, 24. Qh8+ Kf7 25. Qh7+ Ke8 26. Qg8+ Rf8 27. Qg6+ Rf7 28. Bb4 Bc8 29. Qg8+ Kd7 30. Qxf7+ Kc6

Aug-23-14		vajeer: I just realized, in my above analysis, Black will be able to hold after 28....Qf6. But I found another way where 24.Qh8+ line can work (unless I have made another glaring mistake!) 24. Qh8+ Kf7 25. Qh7+ Ke8 and now 26. Bb4 White again threatens to play Qg8 and the only defense appears to be 26....Bc8. Now, White can play 27.Re3 (where intention is to play Rg3 and Rg8). Game can continue as: 27...Rf7 28. Qg8+ Kd7 29. Qxf7+ Kc6

Aug-23-14		Everett: I imagine that quite a few of us would play the first two moves on short time. I was drawn to starting with Rxf6 for two general reasons: I have another rook which can participate (avoiding redundancy of attacking pieces) and the bishop of opposite color allows my dominance of the dark squares. Though it doesn't ways work out in the details, sometimes thinking this general way helps steer us in the right direction.

Aug-23-14		M.Hassan: "Very Difficult" White to play 22.? and White is a pawn down 22.Rxf6+ Rxf6 23.Qh5+ Kf8 24.Re3 Rf5 25.Bb4+ Kg7 26.Rg3+ Kf6 27.Qg6+ Ke5 28.Re3+ Kd4 29.Qg4+ Rf4 30.Qxf4# Looks like if the first two moves is played correctly, the rest dictates the result.

Aug-24-14		Cheapo by the Dozen: I didn't see the strength of a possible return of the bishop to the a3-f8 diagonal, and without that the rook lift didn't occur to me.

Sep-09-14		hoodrobin: <perfidious: If our contributor <Robespierre> has indeed lost his head, at least he has not been responsible for others losing theirs!> AWY. :-(

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