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| Apr-03-14 | | RedShield: <Is Anand wearing a hairpiece?> It's wearing him. |
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| Apr-03-14 | | Everett: <eyal> thank you for that. The kind of attack at the king, so quickly out of the opening, is reminiscent of Bronstein. Too bad Aronian missed the line. Was it mentioned by Anand or Aronian in the post-mortem? |
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| Apr-03-14 | | cro777: In the position after 13...Nf4 14.Nf3
click for larger viewGM Alex Baburin (Chesstoday) considered 14...Nxh3+:
"My Houdini likes the idea of 13...Nf4 14.Nf3 Nxh3+ 15.gxh3 c5 but I suppose that Aronian had looked at it and found that it was inferior to the positional approach 13...Nf6" Houdini 3 at 35 ply gives:
(-0.21) 14...Nxg2 15.Kxg2 a5 |
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| Apr-03-14 | | Ulhumbrus: <Strange that Aronian's novelty 11...Qd7 was actually a brilliant trap, only he missed how strong it was and didn't follow through with 13...Nf4! (instead of Nf6) 14.Nf3 (14.Ne4 Ng6) 14...Nxg2!! 15.Kxg2 a5!! (threatening to capture the bishop with a4 & preparing a rook lift to g6 via a6). As L'ami notes (https://www.youtube.com/watch?v=0OK...), it might have led to a completely different result to the game - and perhaps the whole tournament. Delchev also noted on chessbomb, during his live commentary, that Cheparinov showed him this idea several years ago (http://chessbomb.com/o/2014-candida...).> The Houdini analysis on the official site after 13...Nf4 goes 14 Nf3 14...Ng6 ( Houdini does not even consider 14...Nxg2)15 Rh5 Qd6 16 c3 Ra8-d8 17 d4 h6 18 a4 b4 19 Bd2 Nf4 20 Ra5 bxc3 21 bxc3 Qb6 22 Re5 Bxf3 23 Qxf3 Bd6 24 Bxf4 Bxe5 25 Bxe5 Qxb3 26 Qg3 g6 27 Bxc7 and Houdini assesses this as 0.41 compared with 0.26 after 13...Nf6 for which Houdini gives 14 Nf3 Bd6 15 Re1 Re8 16 Bd2 Rxe1 17 Nxe1 Re8 18 a4 h6 19 Nf3 b4 20 a5 Bd5 21 Bxd5 Nxd5 22 c4 bxc3 23 bxc3 Qf5 24 c4 Nf5 25 Bxf4 |
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| Apr-03-14 | | Eyal: <Houdini 3 at 35 ply gives:
(-0.21) 14...Nxg2 15.Kxg2 a5>
There you go – not Baburin's 14...Nxh3. Looking at it a bit with my own engine, I got the impression that it has a problem in evaluating the full force of Black's attack (that's why it's easy to miss it in the first place, even if you look at the position after 13...Nf4 with an engine) and that the evaluations get better for Black if you slide forward in the variations (most of them are rather forcing). But it's not only the evaluations – the position is extremely sharp and dangerous for White, and a player with home-prep who manages to surprise his opponent into such a line would have a massive advantage over the board. Btw, I'm not surprised Delchev mentioned Cheparinov as a source in that chessbomb commentary I referred to – that's exactly the kind of ideas the latter was so good at finding for Topalov when he worked for him as a second. |
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| Apr-03-14 | | DrGridlock: Some discussion on whether 13 ... Nf4 was an opening trap (and improvement on 13 ... Nf6). The L'Ami line is: 13...Nf4! 14.Nf3 14...Nxg2!! 15.Kxg2 a5!!
After which L'Ami finds:
16 a4 Ra6 17 d4 Rg6+ 18 Kh2 Bd6
with the observation that, "White can hardly move."
While that line leads to a good position for black, the improvement for White is 17 Qe2 instead of 17 d4. Komodo finds: Viswanathan Anand - Levon Aronian
click for larger view1. = (0.12): 17.Qe2 Rg6+ 18.Kh2 Bd6 19.Nh4 Rg1 20.Kxg1 Qxh3 21.f3 Qg3+ 22.Qg2 Qxe5 23.Bh6 bxa4 24.Bxg7 Bc5+ 25.Kf1 Qxg7 26.Rxa4 Bc8 27.Qxg7+ Kxg7 28.Rxa5 Bd4 29.Nf5+ Bxf5 30.Rxf5 Bxb2 31.Rc5 Rc8 32.Bd5 Bd4 2. µ (-0.83): 17.d4 Rg6+ 18.Kh2 Bd6 19.c3 Qc6 20.d5 Qd7 21.Bf4 Bc8 22.Rh5 Bxf4+ 23.Kh1 Rh6 24.Rxh6 Bxh6 25.Ng1 g6 26.Qg4 bxa4 27.Qxa4 Qxa4 28.Rxa4 Bf5 29.Bc4 Rb8 30.Ra2 Be4+ 31.f3 Bb1 32.Rxa5 Rxb2 In doing computer analyses of these lines, it's important to know to which depth analyses are done. "Official site" and "game time" analyses are usually to a small ply depth, and in this position often lead to incorrect evaluations. |
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| Apr-03-14 | | Eyal: <1. = (0.12): 17.Qe2 Rg6+ 18.Kh2 Bd6 19.Nh4 Rg1 20.Kxg1 Qxh3 21.f3 Qg3+ 22.Qg2 Qxe5 23.Bh6 bxa4 24.Bxg7 Bc5+ 25.Kf1 Qxg7 26.Rxa4 Bc8 27.Qxg7+ Kxg7 28.Rxa5 Bd4 29.Nf5+ Bxf5 30.Rxf5 Bxb2 31.Rc5 Rc8 32.Bd5 Bd4> I actually looked at this line. Try instead 19...Bxe5+ 20.Qxe5 Re8 and you'll see the evaluation changing in favor of Black. |
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| Apr-03-14 | | anandrulez: Interesting it reminds be of Kasparov Topalov famous game from 1999 - where Kxd4 and Topalov might have been winning . Its clear that luck favoured Vishy here . Levon got punished for being passive . Few questions I have :-
1) So is Nf4 winning ? It looks really promising . If so - Anand's Ne4 was the right idea or was it Bc2 that was better ? 2) Would Super GM's be able to calculate this type of Nxg2 OTB in modern day scenario where we just tend to respect another persons preperation ? Perhaps psychologically Aronian trusted Anand's Ne4 (assuming Aronian thought Anand prepared it ) |
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| Apr-03-14 | | DrGridlock: <Eyal> In the 17 Qe2 line, 19 ... Bxe5+ does appear to be an improvement for Black over 19 ... Rg1. The 13 ... Nf4 line (instead of 13 ... Nf6) is very complicated. It's hard for computers to get the correct evaluations, and takes a very deep search. It also appears that 16 c3 may be an improvement for White over 16 a4. |
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| Apr-04-14 | | Ulhumbrus: <DrGridlock: ...The 13 ... Nf4 line (instead of 13 ... Nf6) is very complicated. It's hard for computers to get the correct evaluations...> On 13...Nf4 one alternative to the sequence which begins with 14 Nf3 Nxg2 15 Kxg2 a5 is the exchange sacrifice 14 Ne4 Ng6 15 Rxe7 eg 15...Qxe7 16 Be3 or 15...Nxe7 16 Be3 I don't know what Houdini has to say about 13...Nf4 14 Ne4 Ng6 15 Rh5. |
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| Apr-04-14 | | DrGridlock: <On 13...Nf4 one alternative to the sequence which begins with 14 Nf3 Nxg2 15 Kxg2 a5 is the exchange sacrifice 14 Ne4 Ng6 15 Rxe7 eg 15...Qxe7 16 Be3 or 15...Nxe7 16 Be3> Viswanathan Anand - Levon Aronian
click for larger view1. ³ (-0.45): 16...Bxe4 17.dxe4 Rfd8 18.Qg4 Ne5 19.Bg5 Nxg4 20.Bxe7 Rd7 21.Bh4 Ne5 22.f3 Re8 23.a4 h6 24.Bg3 c6 25.axb5 axb5 26.Kh2 Kh7 27.Bf2 Red8 28.Bc5 Rd1 29.Rxd1 Rxd1 30.Kg3 Kg6 31.Kf4 It's an interesting alternative. Komodo scores it as better than the 16 a4 lines, but not as good for White as what I'm getting in the 16 c3 lines. Given that it's somewhat forcing, and after the Queens come off after move 20 White is down the exchange for a pawn, and his bishops are kind of pushed to the side of the board. Hard to see White "aiming" for this position as his desired outcome at move 12. |
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| Apr-04-14 | | Ulhumbrus: <DrGridlock: <On 13...Nf4 one alternative to the sequence which begins with 14 Nf3 Nxg2 15 Kxg2 a5 is the exchange sacrifice 14 Ne4 Ng6 15 Rxe7 eg 15...Qxe7 16 Be3 or 15...Nxe7 16 Be3>
Viswanathan Anand - Levon Aronian
click for larger view
1. ³ (-0.45): 16...Bxe4 17.dxe4 Rfd8 18.Qg4 Ne5 19.Bg5 Nxg4 20.Bxe7 Rd7 21.Bh4 Ne5 22.f3 Re8 23.a4 h6 24.Bg3 c6 25.axb5 axb5 26.Kh2 Kh7 27.Bf2 Red8 28.Bc5 Rd1 29.Rxd1 Rxd1 30.Kg3 Kg6 31.Kf4 It's an interesting alternative. Komodo scores it as better than the 16 a4 lines, but not as good for White as what I'm getting in the 16 c3 lines. Given that it's somewhat forcing, and after the Queens come off after move 20 White is down the exchange for a pawn, and his bishops are kind of pushed to the side of the board. Hard to see White "aiming" for this position as his desired outcome at move 12.
> What does Komodo have to say after 13...Nf4 14 Nf3 Nxg2 15 Kxg2 a5 16 c3? |
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| Apr-04-14 | | DrGridlock: After several hours of searching, here are Komodo's evals (depth=27) for 16 c3 and 16 a3 after the continuation 13...Nf4 14 Nf3 Nxg2 15 Kxg2 a5:
click for larger view1. ³ (-0.32): 16.c3 Ra6 17.d4 Rg6+ 18.Kh2 Bd6 19.Nh4 a4 20.Nxg6 hxg6 21.Qg4 Qc6 22.Bf4 Bxe5 23.Bxe5 axb3 24.axb3 f6 25.Bf4 g5 26.Be3 Re8 27.b4 Re4 28.Qf3 Qd7 29.Ra7 Bd5 30.Qg3 Re7 31.Qg4 Qd6+ 2. ³ (-0.43): 16.a3 Ra6 17.Bf4 Rf6 18.Re4 a4 19.Ba2 Bxe4 20.dxe4 Qxd1 21.Rxd1 Rxf4 22.Rd7 Bd8 23.Bd5 Rf6 24.Nd4 Rg6+ 25.Kf1 Bg5 26.e5 Bc1 27.e6 fxe6 28.Nxe6 c6 29.Nxf8+ Kxf8 30.Be4 Re6 31.Bf5 Re5 |
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| Apr-05-14 | | Ulhumbrus: <DrGridlock: After several hours of searching, here are Komodo's evals (depth=27) for 16 c3 and 16 a3 after the continuation 13...Nf4 14 Nf3 Nxg2 15 Kxg2 a5: click for larger view
1. ³ (-0.32): 16.c3 Ra6 17.d4 Rg6+ 18.Kh2 Bd6 19.Nh4 a4 20.Nxg6 hxg6 21.Qg4 Qc6 22.Bf4 Bxe5 23.Bxe5 axb3 24.axb3 f6 25.Bf4 g5 26.Be3 Re8 27.b4 Re4 28.Qf3 Qd7 29.Ra7 Bd5 30.Qg3 Re7 31.Qg4 Qd6+ 2. ³ (-0.43): 16.a3 Ra6 17.Bf4 Rf6 18.Re4 a4 19.Ba2 Bxe4 20.dxe4 Qxd1 21.Rxd1 Rxf4 22.Rd7 Bd8 23.Bd5 Rf6 24.Nd4 Rg6+ 25.Kf1 Bg5 26.e5 Bc1 27.e6 fxe6 28.Nxe6 c6 29.Nxf8+ Kxf8 30.Be4 Re6 31.Bf5 Re5
>
Still advantageous for Black, eh? How about an alternative exchange sacrifice: 13...Nf4 14 Re4 Bxe4 15 Nxe4. What does Komodo have to say about this one? |
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| Apr-05-14 | | veerar: 14.Qg4 seems to hold.Aronian might have been playing for a win |
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| Apr-05-14 | | veerar: 13....Nf414.Qg4 |
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| Apr-05-14 | | DrGridlock: <veerar: 14.Qg4 seems to hold.> Qg4 Qxg4
hxg4 Bd6
Re3 Nxg2
Re2 Nf4
Re1 Bb4
Material is even, but the white king's position is blown open, and black's pieces are very active. |
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| Apr-05-14 | | veerar: <DrGridlock:>
But White seems to have resources,and the resulting,cut and thrust variation,leads to a draw. |
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| Apr-09-14 | | Ulhumbrus: How about this: 13...Nf4 14 Qg4 offering to return a pawn on g2 but also offering an exchange of queens. What does Komodo or some strong engine have to say about that? |
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| May-13-14 | | 1d410: I was confused when I saw the end position until I saw how Anand trapped the knight. Beautiful! |
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| May-16-14 | | 1d410: Anand thought he might be retiring soon so he comes into this game agressively risking things for a initial victory. |
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| Jul-10-14 | | Chessman1504: A very nice middlegame technical masterpiece by the former champ. He exploited his two bishop advantage well to take home the full point. |
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| Dec-02-14 | | Anulaibhar: A very subtle point in the final position: if 47.Kc2?? black can save the knight: 47...Nc4!! After 47.Kc3 Nd1+ 48.Kc2 the poor knight is out of squares. |
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| Jan-22-15 | | scholes: Well perhaps Wesley So followed Kibitzes in this page. As he plays right 13 .. Nf4 in this game Ivanchuk vs W So, 2015 |
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| Jan-22-15 | | kamagong24: indeed! |
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