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| Nov-16-08 | | boo1: This game is the main reason why Lie has a 3242 rp after three games. He's known for his unorthodox style, and it worked to perfection in this game. |
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| Nov-16-08 | | Xaurus: Yes this is a very nice game. :) |
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| Nov-17-08 | | Eyal: <Yours truly was meant to sit out this round, but when Simen didn't feel too good, I was very motivated to take on the challenge. My opponent Xiangxi Bu had yet to play in this tournament, and could perhaps suffer from a hint of first round rustiness which I could take advantage of. After yesterday's victory against Germany, Simen had shown Leif Erlend and myself his game against Braun, as well as the game he played against Wang Yue in the Youth vs Experience tournament. Both games were in Simen's home crafted variation against the Caro-Kann. Simen showed a few ideas and plans, and I thought it was a motivating and interesting variation. Bu, however, had never played the Caro-Kann before, and he had not met 1. c4 with 1... c6 either, but low and behold, he did so today. Therefore I was given the opportunity to try out Simen's variation from yesterday, and felt comfortable with it. It would lead us both into unknown waters, where I may even be a little more familiar. Fairly early on I had to consider a pawn sacrifice, which I invited to after Be3, and at this point of the game I used a lot of time. Bu declined the complications, and opted instead to play it safe. In the early middle game I was very unsure about the position, but I felt comfortable about it nevertheless. Bu has played much better games before this one, but with that said, I felt that my own play was good. During the game I thought my e4 followed by Qf4 was a stroke of genius, but in later analysis it is apparent that Qc2 is better. But ok, it was not easy to see, and Bu gave in to the pressure when his time ran out. There were a lot of interesting opportunities for me towards the end, but the endgame which is reached after the queen trade was probably won from the start. This is the strongest player I have ever beat, and I have to admit I was floating on clouds a little after this victory!> (http://www.tromso2014.no/2008_11_12...) |
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Aug-25-10
 | | Phony Benoni: Everyone's a little nervous about posting today!
But I don't think there will be too many spoilers. 42.Nf5+ jumps out, to help the passed pawns advance while Black's knight is out of play. If the knight is captures, White's g-pawn takes over. |
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| Aug-25-10 | | rilkefan: Is 41.Nf5+ already winning? Can Black save the game by playing something other than the let's-put-our-knight-on-the-rim 38...Nxa3? |
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| Aug-25-10 | | zooter: 42. Nf5+ wins immediately as gxf5 loses to 43.Kxf5
The black king cannot stop both the g pawn and stop the passed pawns, while the knight is too far away to be of any help Time to check |
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| Aug-25-10 | | culei: 41 nf5 kc7
42 d6 kd8
43 e7 kd7 (ke8 samething)
44 ng7 + and white promotes |
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Aug-25-10
 | | Jimfromprovidence: I saw 42 Nf5+ Kc7.
click for larger viewNow, 43 d6+. White keeps advancing with check, that is the key. So no time for the black knight to be of use. if 43...Kd8 44 Ng7 provides the escort to promotion for the e pawn. 
click for larger view |
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| Aug-25-10 | | kungfufighter888: Well this game looks like pawn promotion issue. So I can"t get the correct move on 42. |
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| Aug-25-10 | | Blunderdome: 42. Nf5+ gxf5 43. g6 Ke7 44. g7 and black can no longer approach the pawn 42. Nf5+ Kc7 and now d6+ and Ke5 both lead to promotion |
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| Aug-25-10 | | dzechiel: White to move (42?). Material even. "Medium/Easy." Material is even, but white has two connected passed pawns. Black has one protected passed pawn, but it's not a threat to move. OK, unless this is another spoiler, the key move has to be... 42 Nf5+ Kc7
Black cannot capture the knight with 42...gxf5 as that allows 43 g6 and there's no way to catch the g-pawn. On 43...Ke7 44 g7 and the e-pawn and g-pawn work together to form a wall locking out the black king. I think that white has lots of ways to win here. Perhaps the most straightforward is 43 Ne7
then capturing the g-pawn next move with 44 Nxg6, 45 Nh4 and 46 g6. I suppose black gets moves in here as well, but they don't seem to matter much. Time to check and see how this went down.
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I thought black would wait one more move to resign. |
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| Aug-25-10 | | VincentL: "Medium/Easy".
This position looks markedly different to the puzzles of the last two days. The first thing I see is 42. Nc6. Does it work? Quite clearly "no". How about 42. Nf5+. This has more promise.
After 42.....gxf5 43. Kxf5 and now black has to try to stop the marauding pawns. It appears that black´s knight does not get across in time - the b pawn protects c4, which helps. There are many variations. Let´s play through one or two of them. (a) 43.....h4 44. Kg4 Ke7 45. g6 Kf6 46. d6 Kxe6 47. d7 Kxd7 48. g7 Ke7 49. g8=Q (b) 43....Nb5. Now we have to be a bit more careful. 44. g6 Nc7 45. Kf6 ! (not 45. g7 Nxd6+ 46. Kg6 Ne7+ etc). Ne8+ 46. Kf7. white doesn't win here. Ah... I see the way forward, I think. 43. g6 !
Now the black king and knight cannot get across quickly enough to stop the g pawn promoting. So it must be:
42. Nf5+ gxf5 43. g6 (not Kxf5) and wins.
Lastly 42.....Kc7. This loses to 43. e7 Kd7 44. d6 Ke8 45. Ng7+ Kf7 45.e8=Q+ My write-up is jumbled here, but it reflects my thought processes, so I´ll post it up without edit. Time to check. |
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| Aug-25-10 | | JG27Pyth: Ok after yesterday's spoiler nailed this one. |
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Aug-25-10
 | | eternaloptimist: This should be classified as easy. 42.Nf5+ was the 1st move that I looked @. |
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| Aug-25-10 | | Once: Two pawn endgame devices well worth knowing:
click for larger viewThe black king cannot capture the d5 pawn, as it would allow the e6 pawn to run to queen. In effect, the pawns are self-supporting and don't need any help from other white pieces. And after 42. Nf5+ the knight is immune because white has too many pawns racing through. 43...gxf5? 44. g6! Ke7 45. g7 
click for larger viewAnd the black king cannot approach the queening square because the white pawns control all the access points. And just what is the black knight doing all the way over on a3? |
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Aug-25-10
 | | scormus: I think after yesterday CG thought theyd better make it easy on us. Only difficult part was predicting B's response. The immediate 1-0 comes to mind. 42 ... gxf5 loses at <Once>. After 42 ... Kc7 43 d6+ is perhaps the neatest of several ways. |
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| Aug-25-10 | | mike1: got the puzzle.
My question is: how does White win
if Black keeps his king on f6?
Kf6-e7-d6 was surely a very bad idea. |
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| Aug-25-10 | | agb2002: The material is even.
Black is probably considering the maneuver Nb1-Nc3-Nxd5. The black king would become overburdened if White could get another passed pawn because the knight cannot reach the king side quickly. Hence, 42.Nf5+: A) 42... gxf5 43.g6
A.1) 43... Ke7 44.g7 followed by 45.g8=Q winning.
A.2) 43... Nb5 44.g7 Nc7 45.g8=Q Nxd5+ 46.Kf3 (avoiding the last trick: 46.Ke4 Nf6+; 46.Kf5 Ne7+) + -. B) 42... Kxd5 (or 42... Kc5) 43.e7 followed by 44.e8=Q winning. C) 42... Kc7 43.d6+
C.1) 43... Kd8 44.e7+ Kd7 (44... Ke8 45.Ng7+ and 46.e8=Q+) 45.Ng7 and 46.e8=Q + -. C.2) 43... Kc6(8) 44.e7 Kd7 transposes to C.1. |
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Aug-25-10
 | | LIFE Master AJ: I analyzed ONLY from the diagram. I copied it to "notepad," and then transferred it to Chessbase 10.0. (I checked it with Fritz. Its not perfect, but its also not terrible either.) ***** ***** ***** ***** ***** ***** ***** ***** ***** K. Lie - Bu Xiangzhi
POTD / Aug. 25th, 08.2010
[A.J.G.]
My analysis of the problem of the day: Wednesday / August 25th, 2010. 
click for larger view42.Nf5+! ,
Other White moves do little. (I.e. 42.b4 is pointless.) 
click for larger view42...gxf5 ;
This looks to be forced to me.
[After the following variation:
42...Kc7?; 43.Ke5 Nb5; 44.d6+ Kc6; 45.Ne7+ Kb6; 46.Nxg6 Kc5; 47.d7 Nd4; 48.e7  , its obvious that White is winning. ] 43.g6 Ke7[];
This also looks forced, otherwise Black will not be able to stop White's little g-pawn from scooting up the board and promoting. [Worse is: 43...Nc2?; 44.g7 ]
44.Ke5 Kf8▢;
Once more, this looks forced to me. (If Black allows the g-pawn to promote, he may as well resign.) [Not: 44...Nb5??; 45.g7 ]
45.Kf6! ,
This has got to be best.
[The move of: 45.d6 , also wins for White. ]
45...Nb5;
It does not matter what Black does here.
[Black also loses after: 45...f4; 46.g7+ Kg8; 47.e7 Kh7; 48.e8Q , etc. ] 46.e7+ Ke8; 47.g7,
click for larger viewand White wins, as Black cannot stop White from promoting one of his two "run-away" passed Pawns. 1-0 |
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Aug-25-10
| | LIFE Master AJ: Maybe I went a little overboard for a Wednesday puzzle ... but it seemed a fuzz harder than normal for this day of the week. |
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Aug-25-10
| | LIFE Master AJ: Its funny how the Black Knight was just an idle spectator to all of the other events that transpired on the chess board. |
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| Aug-25-10 | | TheBish: K Lie vs Bu Xiangzhi, 2008 White to play (42.?) "Medium/Easy"
I guessed the winning move immediately, and a little analysis proved it to be correct. 42. Nf5+!
Now Black is in a position of "darned if you do, darned if you don't" - take the knight, that is! The knight check either drives the king back, allowing the d-e pawn tandem to advance, or creates another passed pawn, the g-pawn, if the knight is captured. A) 42...gxf5 43. g6 Ke7 44. g7 and the pawn can't be stopped. B) 42...Kc7 43. d6+ Kd8 44. e7+ Kd7 45. Ng7 and the e-pawn queens next move. |
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| Aug-25-10 | | gofer: Knights on the rim are dim...
To be able to help out the black knight has to go to C2 or b5 neither of which are very close to the action. The king is bravely trying to stop Pd5 and Pe6, so lets give him something more to think about... 42 Nf5+ ...
42 ... Kxd5 43 e7 winning
42 ... gxf5 43 g6 Ke7 44 g7 winning
42 ... Kc7 43 d6+ Kc8 (Kd8 44 e7+ Ke8 45 Ng8+ winning) 44 d7+ Kd8 45 Nd6 winning as Nf7+ will follow. Game over. Much more relaxing than yesterday's! Time to check... |
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Aug-25-10
| | LIFE Master AJ: What was yesterday's puzzle ... I missed it. (Busy getting my three girls back into school!) |
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| Aug-25-10 | | gofer: <LIFE Master AJ, VincentL> use the pawns, not the king. You are making things too complicated... :-) |
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