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| Apr-08-06 | | DeepBlade: Wow, this is my lucky week!
We had pawn-push themed problems this week, and their objectives tend to be a lot easy to understand. The Knight at b7 cant help, neither can the Bishop at e2. Now the Knight has some sacrificial potential. Any other move than Nd4! simply loses the Knight. It opens a deadly diagonal to the Black Rook at b8, and a cleanup with a passed pawn is akin to resigning. |
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Apr-08-06
 | | Marmot PFL: Very good, and deep combination (which I missed). I played Bxe5 fe5 Nxg5, followed by Ne6+ and Bc4. It gives white some edge, but not enough... |
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Apr-08-06
| | Marmot PFL: I heard Kamsky chatting online the other day. He says he is out of shape, both physically and in chess form, and lacks the motivation to prepare, as well as confidence that he can come back at age 32. Didn't sound like the best mental state, but maybe he can turn things around. |
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| Apr-08-06 | | Jim Bartle: "Didn't sound like the best mental state"
Maybe not, but it must be better than in the early 90s when his every move was controlled by his out-of-control father. |
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| Apr-08-06 | | alefromitaly: Very interesting and deep. Saw all 'til black's 33, going to analyze. |
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| Apr-08-06 | | Alex S.: Found this one quite easily, but didn't think black would fall for it. |
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| Apr-08-06 | | NoorBeckwith: Marmot PFL, I, as an entomologist, love your avatar. It's Papilio zelicaon (the Anise Swallowtail), if you didn't already know. |
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Apr-08-06
 | | RandomVisitor: Here's what Rybka says about the winning move 28.Nd4 - Black's 3 best responses 20 +1.18 28. ... exd4 29.Bxb8 Nxc6 30.Bd6+ Ke8 31.Rb3 Kd7 32.Bb5 Nb6 33.Bg3 Bf8 34.Rd3 Ra4 35.Bxa4 19 +1.67 28. ... Ra7 29.Ne6+ Kg8 30.Bf3 Ra6 31.c7 Re8 32.Nbd8 Nb6 33.Kg2 Nec8 34.Bd1 Nd6 35.Rb4 19 +2.16 28. ... Rc8 29.Ne6+ Kg8 30.c7 Ra6 31.Bc4 Kh8 32.Rxe5 Rb6 33.Rb5 Rxb5 34.Bxb5 Ra8 35.b4 |
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| Apr-08-06 | | Catenaccio: I am also very confused as many of you. My response with Black would be
28 ... Nc3
29 Ne6+ Kg8
30 Bc4 Nxb5
now White can use the pin to go
31 Nc7+ Kh8
32 Nxa8 Rxa8
33 Bxb5
Fritz even saw a draw with
31 Nxg5 Kf8
32 Ne6+ Kg8 and back and forth
I never considered taking on d4 for Black. What did I miss. |
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Apr-08-06
 | | kevin86: An amusing (and amazing) conclusion with white finally picking up a horse with his own horse. Black is chased from pillar to post only to wind up a piece down. |
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Apr-08-06
 | | dakgootje: Got the main idea but missed the first moves of the combination ;-)
Didnt take too much time to solve it either, so i didnt expect my solution to be the right one. |
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| Apr-08-06 | | brainzugzwang: I'm with those who don't understand why Black took the d4 knight (28... exd4). I never even considered Nd4 because I didn't think Black would accept the sac; I was looking harder at 28.Nxe5 to open the diagonal, actually. I just can't see any direct threat or positional advantage to Nd4 that would cause Black to take the knight. Anyone? |
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| Apr-08-06 | | drnooo: Kudos here to the room. Looks like you all saw more than Wolfe. Took me a bit to see the knight sac, then just assumed it had to be taken. The rest of the combo was easy enough, at least I saw that king was in his counting house counting out his counterfeit. Being bullied by his own pieces. |
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| Apr-08-06 | | DP12: I am missing the value of 28... Nc3 29.b:c3. What am I missing? I think black is indeed busted after Nd4. A knigt on e6 is just too much. |
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| Apr-08-06 | | EmperorAtahualpa: This puzzle was way, way beyond me. Excellent job by Kamsky! |
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| Apr-08-06 | | korger: According to the notes, this game was played in our world. How informative :) |
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| Apr-08-06 | | Jim Bartle: Nice catch... |
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| Apr-08-06 | | Chess Prodigy: 6/6 this week...Sunday will be unlikely though...but 6/7 is still awesome...Nd4! is quite a treat for white....gg Kamsky! |
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| Apr-08-06 | | jmelton: I missed it, but I don't feel bad, because Fritz (at least my version, the one that comes with CB Light) missed it, too! It didn't see the game as clearly won for White until I got to move 33! Nice, deep combination by Kamsky. Sometimes in tactical positions human pattern recognition is even better than computers' brute force. I did come up with a continuation that appears to win, although not nearly as quickly as Kamsky's: 28. Bxe5 fxe5 29. c7 Rc8 30. Nxg5 Ra6 31. Nd8 Rd6 32. Bc4 Ke8 33. Nde6 Bh6 34. Rxe5 Nxb2 35. Bb5+ Nc6 36. Nd8+ Kd7 37. Nxc6 and although the material balance isn't much different than on move 20 (White has gotten a pawn and evened things up), basically what it boils down to is White has so many pieces around Black's cornered king that Black must soon either give up material or get mated. (If you have a computer program you can check this out yourself.) Still, Kamsky's solution is much quicker and more elegant than mine, which I guess is one reason why he's played for the world championship and I haven't! So I guess I'll give myself about half credit for this one. As several people have pointed out, 33...Nc5 puts up more resistance, but even then Black still doesn't have long to live (again, I'm too lazy to type Fritz's analysis in, so you'll have to check it out for yourself). |
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Apr-08-06
| | RandomVisitor: <jmelton>in your line, 31...Rb6 is an improvement and Rybka sees this as best reply: 18 +0.02 32.Bc4 h6 33.Nge6+ Kg8 34.Nc5+ Kh7 35.Nxa4 Rxb5 36.Bxb5 Rxc7 37.Nc3 Rc8 38.Ne6 Kg6 18 0.00 32.Ra5 Nxb2 33.Nge6+ Kg8 34.Ba6 Ra8 35.Nc5 Kh8 36.Nf7+ Kg8 37.Nd8 Kh8 38.Nf7+ Kg8 18 0.00 32.Nge6+ Kg8 33.Bc4 Rxb5 34.Nf4+ Kh8 35.Nf7+ Kg8 36.Ng5+ Kh8 37.Nf7+ Kg8 38.Ng5+ Kh8 |
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| Apr-08-06 | | jmelton: < RandomVisitor: <jmelton>in your line, 31...Rb6 is an improvement and Rybka sees this as best reply: 18 +0.02 32.Bc4 h6 33.Nge6+ Kg8 34.Nc5+ Kh7 35.Nxa4 Rxb5 36.Bxb5 Rxc7 37.Nc3 Rc8 38.Ne6 Kg6 18 0.00 32.Ra5 Nxb2 33.Nge6+ Kg8 34.Ba6 Ra8 35.Nc5 Kh8 36.Nf7+ Kg8 37.Nd8 Kh8 38.Nf7+ Kg8 18 0.00 32.Nge6+ Kg8 33.Bc4 Rxb5 34.Nf4+ Kh8 35.Nf7+ Kg8 36.Ng5+ Kh8 37.Nf7+ Kg8 38.Ng5+ Kh8> Yup, looks like you're right; Black should be able to hold with ...Rb6. |
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| Apr-08-06 | | Fezzik: Wow! This is the first time in quite a while (not including 4/1) that I completely missed the tactics. I knew that White's dark-squared bishop was doing nothing, but didn't bother to think of a way to get it into the game. What a great combination by Kamsky, who remains one of my least favorite players. Maybe if he starts playing more like this and less like he does when he's losing badly to GMs, I'll learn to like him more. Thanks CG for a great position! |
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| Apr-09-06 | | Catenaccio: Sorry, forget my comment earlier, I played it without noticing the pawn on b2! A whole different game! |
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Apr-28-06
 | | patzer2: White's 25. Rxd5! is a true positional exchange sacrifice! Against perfect defense, Black may be able to survive as indicated by <RandomVisitor>'s analysis with Rybka. However, as Black found out in this game, the slightest miscue gives White excellent winning chances. The puzzle solution 28. Nd4! exploits a small weakness in Black's defense to insure White a lasting advantage. After overlooking the best defense 29...Nxc6!, Black is forced to give back all of White's sacrificed material and finds himself saddled with a lost position. Black made it easy for White with 33...f5? 34. Nb6+  with a decisive discovered check, but even after strongest defense Blackis lost. Here are three (3) interesting possibilities (presented as puzzles): (1) After 33... Rc1+ 34. Kg2 Nc5 35. Nd6+ Ke7 36. Nf5+ Kf7 37. b4 Ne6 (diagram below) 
click for larger view[38. ? White to move]
38. Bc4 Rxc4 39. Nd6+ Kg6 40. Nxc4 .
(2) After 33... Kf7 34. Bc4+ Kg6
click for larger view[35. ? White to move]
35. Bb5 Rc1+ 36. Kg2 Nc5 37. Be8+ Kh6 38. Ne7 .
(3) 33... Nc5 34. Nd6+ Ke7 35. Nf5+ Kf7 36. Bc4+ Ne6 37. Bb3 d3 38. Rb6 Rc1+ 39. Kg2 Re1 40. Nd4 d2 
click for larger view[41. ? White to move]
41. Nxe6 d1=Q 42. Rb7+ Ke8 43. Nxg7+ Kd8 44. Bxd1 . |
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Mar-18-12
 | | wordfunph: as recounted by GM Wolff from his book Wolff! The American Grandmaster Series.. <We played this game in the last round to decide first place. At one point, after making my move, I got up to stretch my legs and say hello to a few friends who had come to watch. Rustam
(Gata's father) intercepted me and told me, "No talk, just play." The look on his face and his tone of voice left no doubt that he was threatening me. Never mind that it is normal to talk briefly to people about non-chess related matters, and that he had no right to disturb me in any way! Unfortunately, it was a Swiss tournament with scant arbitration, and by the time I could reach an arbiter, I had been distracted for over ten minutes. (By the way, when I was back at my board, Rustam actually physically
threatened one of my friends! I am glad at least that I did not know this during the game). Gata is a very strong chessplayer and deserved this victory on the merits of his play. Yet he and his father also seem to have no compunctions about using "non-chess" tactics to compete. A strange side-note: After he had won this game, and thus tied for first, they still wanted to make a formal complaint against me for wanting to say hello
to my friends, which I repeat is completely normal behavior at a chess tournament! Well, I will always remember this game, that's for sure...> |
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sac: 25.Rxd5