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Johan Salomon vs Maxime Vachier-Lagrave
Tradewise Gibraltar (2017), Catalan Bay GIB, rd 3, Jan-26
Sicilian Defense: Canal Attack (B51)  ·  0-1


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sac: 13...Rxc2 PGN: download | view | print Help: general | java-troubleshooting

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Analysis by Houdini 4: d 28 dpa done

<1. = (0.10): 18...Nd5> 19.Nc3 Nxc3 20.Rxc3 Nf6 21.Nd2 Nd5 22.Rf3 h5 23.Nc4 h4 24.Rc1 Qb7 25.h3 f5 26.Ba3 Qd7 27.Qd2 Bc6 28.Rd3 Rc8 29.Rc2 Bb7 30.Rc1 Bc6 31.Rc2

2. = (0.20): 18...Bc6 19.Qd3 Bb7 20.Nbd2 Nd5 21.Ne1 Nf4 22.Qf1 e5 23.dxe5 Nxe5 24.Nc4 Bf6 25.Bxe5 dxe5 26.Nd6 e4 27.Ra2 Rd8 28.Nxb7 Qxb7 29.Qc4 Bg5 30.b4 Nd5 31.Rb1 e3 32.Nd3 Bf6 33.Rxa6 exf2+ 34.Nxf2 Bd4 35.Rc6 h5 36.b5 Nc3 37.Re1

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  lost in space: Took me a while to find 29...f5. I was locking first to backrank-motives but without luck/success ....
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  gawain: Like several other solvers I was fixated on the lure of a back rank mate. Could not see the winning move.
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  Wallac: Got this pretty much right away....... for once haha
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  messachess: Ha ha ha! I actually did not see the simple pawn move. Looking for that back rank mate.
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  OhioChessFan: <OCF: This is a rare occasion where I think a position presented as a puzzle makes it harder to find than it would have been over the board. I'm with the group who was tantalized by the back rank weakness and spent a lonng time looking for some way to take advantage of it. I think it might have been easier to find on a Wednesday or Thursday, for that matter, just to get me away from trying to displace that dastardly d2 Knight.>

And it was only June 18th.....I had already forgotten that. Same thing again today.

Aug-10-18  yadasampati: <OhioChessFan> It was June 19th, which was a Tuesday. I said it before: why does CG repeat puzzles from the very recent past, and why are they not consistent in the weekday?
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  OhioChessFan: <yada> the website owner/webmaster died recently. There are a number of resulting problems with the daily operations. The repetition of puzzles is one symptom. Hopefully this will get cleared up soon.
Aug-10-18  leRevenant: Also, <chrisowen>'s literary style has changed noticeably. Is there some subtle connection?
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  ChessHigherCat: I remembered this one but it's worth a second look. That said, anybody have an idea for a Friday puzzle?
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  Jimfromprovidence: I don't know if this is a Friday level puzzle but it's real good. Move 29, white to play and win.

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The game link is below.
F Vallejo Pons vs C Holt, 2010

Aug-10-18  Mayankk: Thank JFP. Got the idea behind knight sac and the resulting fork possibilities. I didnít notice the subsequent second Rook sac at first glance but thatís probably okay.

Does it make a difference as to which knight do we move first to e4?

Aug-10-18  saturn2: <Jim> I got the basic idea but my follow up differs a bit from the game.

29. Nce4 dxe4 30. Nxe4 Kf8 31. Qd6+ Kg7 32. Nf6 Qh4 33. g3 Qh6 34. Nxg8 Kxg8 35. Rxc6 bxc6 36. Qxb8 Qf8

Aug-10-18  saturn2: <Mayankk Does it make a difference as to which knight do we move first to e4?> If 29 Nge4 black can complicate things with 29..Rxg1+
Aug-10-18  MrCarciofo: Already used as POTD; maybe a year ago or so. a few seconds and I remembered f5. And I also remembered that a year ago I couldn't find this move.
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  malt: Thanks <Jim> I had Puzzle to put forward.

I got 29.Nce4 de4 30.N:e4 Rf6 31.R:c6 bc6 32.Rd1 Kf8 33.g4 Qh6 34.Qd6+

Aug-10-18  Patriot: <Jim> I was thinking 29.Qc2 followed by 30.Na6.
Aug-10-18  lzromeu: Did it in seconds, easy.
What could black have to do anymore?
Aug-10-18  lzromeu: Reading anothers comments...
I was looking for back-rank mate too, but needed the bishop to threat D2, and for this, need to atack g5, and for this needed remove the rook threat, and then I saw the rook is dead.
Aug-10-18  mel gibson: <Aug-10-18
Premium Chessgames Member OhioChessFan: <yada> the website owner/webmaster died recently. There are a number of resulting problems with the daily operations. The repetition of puzzles is one symptom. Hopefully this will get cleared up soon.>

I am sorry to hear that.

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  OhioChessFan: <Rev: Also, <chrisowen>'s literary style has changed noticeably. >

Yeah, it's rather poor lately. Hope you can get your A game back, <co>

Aug-10-18  PJs Studio: I found f5 as the best method for attacking the battery piece as blacks king is short of squares. I thought thereíd be a follow up. Not bad for a Friday.
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  CHESSTTCAMPS: Black has B+P for a knight. White's discovered check threat of 30.Nxe6+ is not compelling, but against nervous opposition might draw losing blunders 29... Kh8??? or 29... Kf8???.

In fact, white has overloaded his rook, which can be exploited with 29...f5! 30.Rh4 Bxg5 31.Rxh5 Bxd2 winning.

Probably intended as a one star puzzle.

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  thegoodanarchist: I solved it instantly this time! :)
Aug-12-18  yadasampati: <OhioChessFan> Thank you for your answer
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