Lutz Espig vs Istvan Csom (1978)

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Lutz Espig vs Istvan Csom
Vilnius (1978), Vilnius URS, rd 8, Jul-??
Zukertort Opening: Sicilian Invitation (A04) · 1-0

ANALYSIS [x]

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Mar-16-06		Kelvieto: 24.. Rd8! would have avoided the material loss. Nice puzzle though...

Mar-16-06		yataturk: I don't get it to be honest..

Mar-16-06		RandomVisitor: It doesn't matter which white knight takes first on move 25...

Mar-16-06		nolanryan: What I missed is that 27 ...Rxc7 is impossible. White would then have 28. Nxe7, and the knight can't be taken because of a nasty pin, and the follow-up 29. Rd7.

Mar-16-06		hayton3: The whole point of the combination is to liquidate into an ending a pawn up.

Mar-16-06		jorgegatica: Almost first :-) ... Well, the theme is easy to see when you consider that white has a bishop in a3 and black has a king in f8... Then the idea changes to calculate the move necessary to clean the diagonal and Ncd5 comes to mind. Next moves are forced or almost forced.

Mar-16-06		LoveThatJoker: I solved this one in three minutes. It is definitely an intriguing puzzle. The point of the puzzle is that White gains two pawns without relinquishing the initiative. It is of great interest to note how Lutz Espig went about executing his exchanges: 25. Ncxd5 - Instructive. Capturing first with the N that blocked the action of his own Rooks. This is technically sound. 26. Nxd5 - The second punch and the one N fork that cannot be resisted. 27. Rxc7 - This move indicates that White wishes to exchange and exchange until there is nothing or close to nothing left. (If you don't believe me, note that 27. Nxc7 allows Black to wrest the initiative from White with 27...Bxa3) And after the exchanges culminate with 30...Nxc7, White retains the initiative. I am glad to have partaken in this game between two Masters. God Bless. LTJ

Mar-16-06		AniamL: This is the week from Hell. I could have sworn it was Saturday two days ago. I could have sworn it was Sunday yesterday. That would make today Monday, which means an easy puzzle. But noooooooooooooooo. Today's Thursday, and this week's puzzles are eating me alive. ARGGHHHHHHH!

Mar-16-06		blackjacki2: Can someone please give me the line after 27...Rxc7 28. Nxe7 Bxa3?

Mar-16-06		MarioBalibrera: Wow, I actually got this one easily. Then again, I have practice--when I play, I'm always looking for ways to sacrifice my knights. ;-)

Mar-16-06		dzechiel: Found it in a couple of seconds. It almost seems forced if white wants to make progress.

Mar-16-06		esticles: <blackjacki3> Bxa3 in your line is impossible, the bishop had just been captured by the knight.

Mar-16-06		esticles: <MarioBalibrera> To answer the question in your profile, I think 1900 standard on FICS figures to be a little over 1700 Elo, since the inflation on FICS seems to be a little under 200.

Mar-16-06		ChessPieceFace: i had been locked into rook sacrifices thanks to yesterdays puzzle, so i thought of 25.Rdxd5 exd5 26.Ncxd5 Rc8 27.Bxc5 Bxc5 28.Rcxc5 Rcxc5, etc. then i realized this was the solution to the puzzle: "25.? white to play (the worst game of chess ever)". haha! i wish it was monday. :)

Mar-16-06		Sneaky: <This is the week from Hell.> You can say that again. The grumbling started on Monday and they haven't shown any mercy yet. Anyhow, now that I've seen the solution and shuffled some pieces around, I see that the puzzle is more about pins than about forks. Look: 25.Ncxd5 exd5 26.Nxd5 Ne6 27.Rxc7 Rxc7 looks natural, right? But 28.Nxe7 Rxe7 click for larger view and now after 29.Rd7! White doesn't just win the exchange on e7, he gets the whole rook no-strings attached. Or if Black tries 26...Ne4 27.Rxc7 Rxc7 28.Nxe7 Rxe7 29.Rd7! again wins. <question> Does it matter which knight to sac first? Is one more accurate than the other for some reason?

Mar-16-06		Sneaky: <ChessPieceFace> Are you a TMBG fan by any chance?

Mar-16-06		fadaly3000: i think that black should have played 27-... Rc7 instead of 27... Nc7 so black will have 2 knights and a bishop vs a rook and a knight for wight

Mar-16-06		majick: This is when it ends for me - I could've SWORN I could get past Thursday this week, I had such a good feeling throughout Monday-Wednesday :'-( I knew a knight-sac on d5 would be the first move but couldn't find the continuation. Nothing was forced enough for a patzer like myself to be considered puzzle-worthy. 2 won pawns was beyond my imagination for today. But I'm improving, also because of these great cg.com-puzzles. :-)

Mar-16-06		jahhaj: I saw this line, and then I saw a better one. Unfortunately the better line involved a magical bishop on a3 that reappeared after it had been captured. Shucks, missed again. This week is hard.

Mar-16-06		Marvol: Fritz or anybody with a working brain will probably refute me, but in the variant line that runs after 27...Rxc7 28. Nxe7, does black not have better than 28...Rxe7? I was looking at 28...Nf6, which takes d7 away from the black rook and d5 away from the knight to fork. Still that would have to work perfectly for black just to end up two pawns down like in the game :-S. Although it may keep an additional set of pieces on the board, making it slightly easier for black to defend (the anyway-lost ending).

Mar-16-06		Richerby: <esticles> There isn't `inflation' on FICS. FICS ratings measure your performance against other FICS players; FIDE ratings measure your performance against other FIDE players. There's no reason to expect the two numbers to be the same because they're measuring different things. Ratings are a measure of performance, not skill. Within a single rating pool, performance correlates with skill but across two different pools, the best you can do is to try to extrapolate from the people who have a rating in both pools.

Mar-16-06		eaglewing: <fadaly3000> I agree, I would have tried 27....Rxc7, too. But due to the followup 28. Nxe7 we have to face the fact, that the combination wins two pawns, so I would have chosen this variant to try to get more active counterplay with 28.... Rc2. I know Ba3/Ne7/Kf8 looks terrible and maybe White can followup with Rd7 or alike and get a fast decision due to the situation around the black king, but without conterthreat to the white pawns black is doomed to passive defense like in the match and the two pawns up mean just winning. Maybe black lasts longer but I think it is a riskless and clear win in the game given. And 28.... Rc2 29. Rd7 Rxa2 needs a good followup for white to be not only one pawn up. Do you see something?

Mar-16-06		simsan: <Marvol> The knight doesn't really fork after 27. ... Rxc7 28.Nxe7 Nf6 29. Nd5, does it? It's a discovered check, thus the rook is lost after 30. Nxc7.

Mar-16-06		Marco65: After 27...Rxc7 28.Nxe7 Nf6 (as suggested by <Marvol>) loses the excange by 29.Nd5+ While 27...Rxc7 28.Nxe7 Rc2 (as suggested by <eaglewing>) leads to a lost endgame anyway because of 29.Nd5+ Rg8 [Nc5? 30.Ne3 Rc3 31.Ab4 ] 30.Rc1! Rxc1 [Rxa2? 31.Rc8 wins a piece]

Mar-16-06		fadaly3000: <marco65>what about 27...Rc7 28.Nc7 Nc7(white's power=13 while black's=14) and if 27...Rc7 28.Ne7 Re7 29.Be7 ke7

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