Nov-17-06
 | | Phony Benoni: Nice attack by Treybal. 16...Re7 was apparently played to double rooks on the e-file, but Black never had time to do it and the disconnection of the rooks became the decisive factor. |
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| Sep-21-24 | | mel gibson: I wasn't sure - either 24. Rxg7 or 24. Ree3.
Stockfish 17 says:
24. Rxg7
(24. Rxg7 (1.Rxg7 Kxg7 2.Re3 Qh5 3.Qxf6+ Kh7 4.Qc3 Qe5 5.Nf6+ Kg7 6.Nxd7 Qxc3 7.Rxc3 a6
8.Rg3+ Kh8 9.Ra3 d5 10.bxa6 dxe4 11.Nf6 Kg7 12.Nxe4 Kg6 13.f3 Ra7 14.Kf2
Kf5 ) +7.53/47 619)
score for White +7.53 depth 47.
If I force SF to play my other choice:
24. Ree3
(24. Ree3 Re8 (1. ... Re8 2.f4 Rde7 3.Qd4 Nh5 4.Rh3 Qg4 5.Rhf3 Rd7 6.Qc3 Nf6 7.Nxf6 gxf6
8.Qxf6 Qg7 9.Qh4 Rde7 10.f5 Re5 11.Rh3 h5 12.Qxh5 Ke7 13.Rhg3 Qf6 14.Qe2 Kd8 ) -2.52/47 437) score for Black -2.52 depth 47. |
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Sep-21-24
 | | Teyss: I saw the first few moves but not the whole combination and would never have figured what to do at the end. The continuation is 32.Qg7+ Kf4 (Kh4 or Kh5 is #3 and #4 respectively) 33.Qh7! (threatening Qf5#) Kg4/g5/e5 34.Qf5+ wins the d7 Rook. Incredible to see all this more than 10 moves before. We mortals only see the weak Kside, great players see that and the undefended R just sitting there passively to be taken for dessert. |
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| Sep-21-24 | | stacase: <mel gibson: I wasn't sure - either 24. Rxg7 or 24. Ree3.> I was pretty sure that the theme for the week so far has been the Rook sacrifice. |
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| Sep-21-24 | | TheaN: Actually got most of a Saturday, been a while. Interestingly, because of the obvious weak spot of Nf6 this kind of plays itself. It is one of those combinations you tend to not calculate <completely> though: winning exchange back plus pawn and an attack is enough. <24.Rxg7! Kxg7> alternatives don't really work, White threatens Nxf6 and 24....Nxd5 25.exd5 +- Black's king is still boxed in and we just traded. <25.Re3>:
click for larger view
The biggest threat here isn't Rg3+, but Nxf6 right away, considering 26.Nxf6 Qxf6? 27.Rg3+ +- loses the full queen. Black has no proper defense against this other than to break the pin straight away, and if the knight stays on f6 then 27.Rg3+ with 28.Rg8+ is a serious threat. <25....Kg6 26.Rg3+ Ng4 (Qxg3 27.Qxf6+ +-) 27.h3 h5 28.hxg4 hxg4>:
click for larger view
Black attempted to get a claim in the position himself. Still an exchange up and the h-file is open. Improvement over the game now: <29.Qf3! +-> and the Black position collapses. <Teyss: Incredible to see all this more than 10 moves before.>
I don't think he did. I think he saw the dominating position after the first three moves and went with it, as move 29 is suboptimal. Treybal's strength is a bit of mysterious regardless, but I consider this more intuition than pure calculation. |
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Sep-21-24
| | Teyss: Hi TheaN,
Excellent point about the suboptimal 29th move. 29.Qf3! is a beauty. Maybe he didn't see the combination all the way through or he did with 29.Nf6 in mind, expecting Qxf6 as in the game or Qxg3 also winning. I'm just speculating on how great players could think but of course it's probably fiction. |
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Sep-21-24
 | | chrisowen: I rack q it's huff avow it's duly it's pj Rxg7 abridge lib hoh it's adagio it's nag bit Rxg7 efface? |
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| Sep-21-24 | | Twilight of the Idol: Close, but no cigar. I saw 24. Rxg7! Kxg7 25. g3 Qg4 26. f4 Qg6 27. f5 Qg5 28. h4, which, despite being moderately inferior to 25. Rf3, is clearly enough to win... And then I decided that 24. Nxc7 was probably best for some reason. There's always tomorrow. |
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| Sep-21-24 | | Twilight of the Idol: <Close, but no cigar. I saw 24. Rxg7! Kxg7 25. g3 Qg4 26. f4 Qg6 27. f5 Qg5 28. h4, which, despite being moderately inferior to 25. Rf3, is clearly enough to win...
And then I decided that 24. Nxc7 was probably best for some reason. There's always tomorrow.> Of course, I meant 25. Re3. |
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| Sep-22-24 | | Rosbach: I found these moves 24. Rxg7 Kxg7 25. Re3 so only got the first few moves of the puzzle. I didn't see 25...Kg6 would be the best defense. |
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Kibitzing
Annotations by 
sac: 24.Rxg7