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Dec-29-22
 | | northernfox: As some others above, I had 28. Qh4 . What does Stockfish say about that line? |
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| Dec-29-22 | | King.Arthur.Brazil: Studying more carefully, Black can answer 28. ♕h4 with 28... ♖xg5 now, 29. ♕xh6? ♘e6 and material is even. Therefore, the correct line will be 29. ♕xg5 ♘g8. Obviously, White has a quality ahead, but not the check-mate. For example: 30. ♘g4 h5 then 31. ♘h6? ♘e6!. I was wrong. Sorry. |
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Dec-29-22
 | | An Englishman: Good Evening: Way back when, learned that v. Black's King side fianchetto, White must always keep an eye peeled for the game's move. Always. So the puzzle proved simple for me. In fact, spent more time looking at how White proceeds if Black had played 28...Ng8. |
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| Dec-29-22 | | jrredfield: I chose 28 Nxh7 which gives White a slight advantage, but the text move and 28 Qh4 are clearly stronger. <northernfox> SF gives 28 Qh4 about a +5 advantage for White, a bit below 28 Nf5. Also strong is 28 Rd1, but again a bit lower than the text move. |
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| Dec-29-22 | | Allderdice83: I think 28 Qh4 is good enough to win but not as spectacular or as devastating as the text. Here's what I can find without using an engine: 28 ... Ne6 29. Nxe6 Qxe6 30. Qxh6 Rg8, and White's up a piece. Any reasonable line should win, eg. 31. b5 Bb7 32. Nd5 28 ... Rxg5 29. Qxg5 (but not 29 Qxh6? Ne6! when everything's protected) Ng8 and White's up an exchange with a stronger position than the above line IMO. |
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| Dec-29-22 | | Mayankk: The very first move one notices is 28 Qh4. It forces 28 ... Rxg5 as Qxh6 and Qxh7# otherwise loom large. After 29 Qxg5 Ng8, White is already up an exchange. Now White can either bring its Knight into attack via 40 Nf5/Ng4 or its Rook into attack via 30 Rf3 Rook lift. Black is stuck with an hopelessly defensive position waiting for the kill to arrive. Not much of a puzzle if the most obvious move wins easily. |
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| Dec-29-22 | | Allderdice83: After checking with Stockfish, 28 ... Rxg5 is better for Black; with +3.6 for White after 29 ... Ng8 (whereas the position after 27 ... Re5 is + 4.7, so I guess Qh4 isn't that good, but should still win). |
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Dec-29-22
 | | Breunor: Also went for Qh4. |
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| Dec-29-22 | | boringplayer: 31.e5 is just beautiful. |
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| Dec-29-22 | | murkia: I chose 28 Rf5 which also wins but not as strong as Rd1, Nf5 or b5 according to the engine! |
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| Dec-29-22 | | Autoreparaturwerkbau: 28.?
As majority today, I also went for <28.♕h4>, which calmly wins an exchange. Svidler opted for <28.♘f5> and after seeing that black resigned 3 moves later it seemed that Svidler's move was far superior. Yet deep silicon search (SF 15, depth 40) reveals that those 2 moves are surpassed by not one but two other moves: - 28.♖d1 (+7,9) - a bit surprisingly this is the best move of all; it forces direct 28...♖xg5 (all other responses are even worse) AND allows 30.e5 with pin that prevents pawn from direct taking
click for larger view
- 28.b5 (+7,7) - idea is that it prevents that after ♘f5 black has ♗xc4 in disposal; after 28.b5 bishop is lost since it doesn't have time to retreat to b7 or c8 because 29.♘f5 now prevents ♘d8 to move to all-important e6 square since after exchange it is guarded by f5 pawn
click for larger viewOnly than SF has
- 28.♘f5 (+7,5) - Svidler's choice
- 28.♕f4 (+7,0) - CG users' choice
Curiously enough white can force win also with
- 28.♖f5 (+6,4) - it follows Svidler's idea of cutting off ♖e5 from getting to g5 or h5 All-in-all there are many ways to skin a rabbit, from users' choice 28.Qf4 to Svidler's 28.Nf5 up to SF's 28.Rd1 and 28.b5. They all win rather convincingly. But as always in complex positions with majority of the pieces still on board, one thing is to have a 'won position' and other thing is to actually win in the end. |
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| Dec-29-22 | | mel gibson: <northernfox: As some others above, I had 28. Qh4 . What does Stockfish say about that line?> OK - it's here - there is less than
1 point difference to the chosen move:
28. Qh4
(28. Qh4 Rxg5 (♖e5xg5 ♕h4xg5 ♘h6-g8 e4-e5 ♘d8-e6 ♕g5-g3
♘e6-d4 ♗c2-b1 d6xe5 ♕g3xe5 ♕d7-d6 ♕e5xd6 c7xd6 ♖e1-d1 ♖f8-e8 ♖f1-e1 ♘d4-e6
♘e3-g4 ♖e8-c8 ♖d1xd6 ♗a6xc4 ♖d6-d7 ♘e6-f4 ♘g4-e5 ♘g8xf6 ♖d7-d4 ♘f4xg2
♔h1xg2 ♗c4-e6 ♗b1-d3 ♖c8-c3 a3-a4 ♖c3-a3 ♗d3-c4 ♖a3xa4 ♘e5xf7+ ♗e6xf7
♗c4xf7 ♔h8-g7 ♗f7-b3 ♖a4-a3 ♖e1-e7+ ♔g7-h6 ♗b3-d1 ♖a3-a2+ ♖e7-e2 ♖a2-a1
♖e2-f2 ♘f6-e4 ♖d4xe4 ♖a1xd1 ♖e4-e7 ♖d1-d4 h2-h3 g6-g5 ♖e7-b7 ♖d4xb4)
-6.82/39 188)
score for Black -6.82 depth 39. |
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| Dec-29-22 | | agb2002: The knight on h6 and the pawn on h7 are defenseless. Black is about to play Ne6.
These details suggest Qh4 and Nf5.
In the case of 28.Qh4:
A) 28... Ne6 29.Nxe6 Q(f)xe6 (29... Rh5 30.Nxf8) 30.Qxh6 wins a piece at least. B) 28... Rxg5 29.Qxg5 (29.Qxh6 Ne6) wins an exchange at least. In the case of 28.Nf5:
A) 28... gxf5 29.Qh4 Rg8 (29... Ne6 30.Qxh6 and mate next) 30.Qxh6 Rxg5 31.Qxg5 Ne6 32.Qh6, followed by Rxf4 or Rf3, wins an exchange and keeps the attack. B) 28... Nxf5 29.exf5, with the threat Nxh7, looks very good for White. For example, 29... Bxc4 30.Qh4 h5 31.Qxc4 wins a piece. Or 29... Rxe1 30.Rxe1 Re8 31.Qh4 Rxe1+ 32.Qxe1 Bb7 33.Qe7 Qxe7 34.fxe7 wins. C) 28... Ne6 29.Nxe6 Nxf5 (29... Q(f)xe6 30.Nxh6 wins a piece) 30.exf5 fxe6 31.fxg6 must be winning. For example, 31... hxg6 32.Bxg6 Rxe1 33.Rxe1 Rxf6 34.Qh4+ Kg7 35.Qh7+ Kf8 36.Qxd7. -----
I'd surely play the simpler 28.Qh4. |
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| Dec-29-22 | | goodevans: Simply because it's a puzzle my attention did go immediately towards the 28.Nf5 sac. In a game I'm sure I'd have given more thought to 28.Qh4 and would have plumped for that like everyone else. I got the first couple of moves okay but have to admit not even considering 29...f4 as that pawn was pinned to Black's Q. |
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| Dec-29-22 | | TheaN: I messed this up a bit, I too got baited into the obvious <28.Qh4>... I mean what's wrong with this? Forcing <28....Rxg5> else mate, but now I thought <29.Qxh6?!> created three unstoppable threats: Qxf8#, Qg7# and Qxg5. <29....Ne6>:
click for larger view
Pesky knights. Apparently this is <still> better for White after 30.Bd1 ±, threatening h4, but far from decisive, and I missed Ne6 defending three threats completely. |
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| Dec-29-22 | | saturn2: 28.Qh4 sprang quickly to my eyes. Then there was a short thought if 28...Ne6 followed by Rh5 is a counter but it is not. 29.Nxe6 and white gains a lot of material |
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Dec-29-22
 | | chrisowen: Jud god v its whip brunt q a flick Nf5 ho its ie arrived its odd boat its ta Nf5 bell. |
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Dec-29-22
| | northernfox: Thanks to <auto> and <mel> for comparative analysis of Qh4. |
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| Dec-29-22 | | Cellist: I considered 28.Qh4 but thought that just winning the exchange was not the best solution. I did see that after 28. Qh4 Rxg5, 29.Qxh6 would run into Ne6, protecting the R on g5. I then found 28.Nf5 but wanted to play 29.Qh4 instead of Qh3. Both moves work equally well. |
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| Dec-29-22 | | Refused: White to move.
28.Qh4 is a candidate, as the knight is pinned on the h-file. The mating threats on h7 and g7 are a constant theme here. 28.Qh4 Rxg5 29.Qxh6 doesn't work that well, because 29...Ne6 sorta holds things together for the moment. 29.Qxg5 Ng8 merely collecting an exchange from the position feels like letting black off way too cheap. Thus 28.Nf5! blocking the 5th rank and taking the Knight out of the line of fire should work.
28...gxf5 29.Qh4 and now black is just too slow.
29...fxe4 30.Qxh6 Rxg5 31.Bxe4
Curtains.
I see, the game went 29.Qh3 f4 instead of 29.Qh4 fxe4. Doesn't really change the overall theme. In the game line white opens the diagonal by pushing the e-pawn instead of re-capturing it with the Bishop. Minor details, unless I am missing something. |
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Dec-29-22
 | | Honza Cervenka: The position after the 17th move of black is quite bizzar.
click for larger view Such a play in the opening, which produced this position, deserves the harshest punishment. And thank God the punishment followed. |
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Dec-29-22
| | Honza Cervenka: Simple 28.Qh4 Rxg5 29.Qxg5 Ng8 30.e5 gives white pure extra Exchange with overwhelming position, and so it is also sufficient for safe win of the game. But 28.Nf5 is more convincing and stronger continuation. |
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| Dec-29-22 | | ygrex: interesting position to analyze, but the thing is that Qh4 and Kf5 are almost equally good (4.74 vs 5.08 on Stockfish 44 depth) |
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Dec-29-22
 | | perfidious: Long and short of all this: embarras de richesse. |
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| Dec-29-22 | | YoungEd: White's 28th and 31moves are pretty indeed. GM Svidler did well to overcome the consequences of the dreaded question-mark opening, the Scotch! :) |
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sac: 28.Nf5