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Ruben Felgaer vs Alexey Dreev
FIDE World Championship Knockout Tournament (2004), Tripoli LBA, rd 2, Jun-22
Caro-Kann Defense: Maroczy Variation (B12)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Jun-22-04  ConLaMismaMano: Was there any chance for this sacrifice(20.Nhxf6+), if played better, to succeed?
Jun-23-04  Rowson: Nice defense from Dreev in this game however, I donít think 20.Nhxf6, (as tempting as it looks) is sound 22..Qe6 crushing the discovered check and easily holding the piece. Dreev still one track to win it! ÖI hope.
Jun-23-04  ConLaMismaMano: I think instead of 20.Nhxf6+, sacrificing the other Knight (Nexf6+) gives white big winning chances.

If 20.Nexf6+ gxf6 21.Qf5 Bd7 22.gxf6 23.Nxf6+ Kf7 24.Rd7+ Kf8 25.Nxh7+ Ke8/g8 26.Qf7++

If 22...Bd8 23.Ng7+ Kf7 24.Rd7+ winning or 23.Ng7+ Kf8 24.Ne6+ Kf7 25.Rd7+! Qxd7 26.Ng5+ Ke8 27.f7+ Ke7 28.Pf8=Q+ Rxf8 29.Qxh7+! winning.

Or 22...Bf8 23.f7+ Ke7 24.Qxe5 Kxf7 25.Qf5+ Ke8 26.Rhe1+ Be7 27.Ng7++

Or 22...Bd8 23.Nxf6+ Ke7 24.Rd7+ Kf8 25.Nxh7+ Ke8/g8 26.Qf7++

Any thoughts?

Jun-24-04  Cyphelium: <CLMM> If 29. Nexf6+ gxf6 21. Qf5, then why not 21.- Bc8? After 22. Nxf6+ Kf7 23. Qxe5 Qe6!?, black seems ok.
Jun-24-04  ConLaMismaMano: <Cyphelium> After 23...Qe6 24.Qc7+ Qd7 25.Qf4 Kg7 26.Rae8 (26...Qa7/b7 then 27.Ne8+ Kg8 28.Qc4+ Be6 29.Qxe6++) Qf7 27.Qa4! h6 28.Rea8! hxg5 29.Rxg5+ Qg6 30.Rxg6+ Kxg6 winning.

Or if 24...Kg6 25.h4 Kf5 26.Rd5+ Kg6 27.h5++ or 24...Kg6 25.h4 Qxa2 26.h5+ Kxg5 27.Ne4+ Kf5 28.Ng3+ Kf6 29.Qf4+ Kg7 30.Nf5+ Bxf5 31.Qg5+! Kf7 32.Qxf5+ and mate in a few moves.

27...Kh6 then 28.Qf4+ Kg7 29.Qf6+ Kg8 30.Rhg8+ Bg7 31.Qxg7++

Jun-25-04  Cyphelium: <CLMM> After 29. Nexf6+ gxf6 21. Qf5 Bc8 22. Nxf6+ Kf7 23. Qxe5 Qe6 24. Qc7+ Kg6 25. h4, I think you have to be very brave to play 25.- Kf5. 25.- h5 is probably much stronger. 26. gxh6 Bxh6+ and black seems close to winning, for example 27. f4 Qe3+.
Jun-25-04  ConLaMismaMano: <Cyphelium> After 29.Nexf6+ gxf6 21.Qf5 Bc8 22.Nxf6+ Kf7 23.Qxe5 Qe6 24.Qc7+ Kg6 25.h4 h5 26.c4 Qe7 27.Qf4 Bf5 28.Rd5 Qe6 29.Rad1 and black has no good moves, no matter what he does, he loses a piece, so white wins.

Well lets agree on one thing, black has to play extremely precise to secure his King, there are lots of variations for black getting mated.

Jun-26-04  Cyphelium: <CLMM> After 29.Nexf6+ gxf6 21.Qf5 Bc8 22.Nxf6+ Kf7 23.Qxe5 Qe6 24.Qc7+ Kg6 25.h4 h5 26.c4(?), why 26.- Qe7?

It must be better to play 26.- Qe3+. Then 27. Kb1 b3! wins for black, since both 28. axb3 Bf5+ 29. Ne4 Bxe4+ 30. fxe4 Qxe4+ 31. Kc1 Ra1+ 32. Kd2 Bb4 mate and 28. a3 Bf5+ 29. Ne4 Bxe4+ 30.fxe4 Qxe4+ 31. Ka1 Bxa3 32. bxa3 Rxa3+ 33. Kb2 Ra2+ 34. Kxb3 Qc2+ 35. Kb4 Qb2 mate is hopeless.

27. Kc2 is more or less the same after 27.- b3+ 28. axb3 Bf5+ etc.

And on 27. Rd2, the same move wins again: 27.- b3 and now for example 28. Nd5 Rxa2! 29. Qc6+ Be6 wins again, thanks to the mate threat on a1.

>Well lets agree on one thing, black has to play extremely precise to secure his King, there are lots of variations for black getting mated.

I agree. And there are many where white gets mated instead! It is very sharp and fun to analyse.

Jun-28-04  Cyphelium: Correction: After 20.Nexf6+ gxf6 21.Qf5 Bc8 22.Nxf6+ Kf7 23.Qxe5 Qe6 24.Qc7+ Kg6 25.h4 h5 26.c4 Qe3+ 27. Rd2, the variation I gave leads to problems: 27.- b3 28. Nd5 Rxa2 29. Qc6+ Be6 30. Kb1! and it is not clear what black should do.

Better is 27.- Qxf3! with the possible continuation 28. Re1 Rxa2 29. Kb1 Bf5+! 30. Kxa2 b3+ 31. Ka1 Qa8+ with mate.

Jul-01-04  ConLaMismaMano: <Cyphelium> <It is very sharp and fun to analyse> Very true, and yes 26...Qe3+ brings plenty of trouble, i didn't see it.
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