< Earlier Kibitzing · PAGE 1068 OF 1068 ·
|Mar-06-11|| ||cro777: <karpkasp: 1) Why did Kramnik play the 3... b5 variant and Fritz the 5. Nc3 variant? Did Houdini or I miss something about the 5. axb5 variant? 2) Is there some games on the subject? The Chesslab database mentions only one game where 7. d5 e5?! was played in 2010>|
The move 5.axb5 is considered to be an interesting idea. It was played by GM Alex Yermolinsky who continued:
5...cxb5 6.Nc3 Bd7 7.Nf3 Bd7 7.Nf3 e6 8.Be2 Nf6 9.0-0
7.d5 has been played both OTB and in correspondence chess but not at a higher level.
Generally, the choice of the move should primarily suit the player's style (and the player must be familiar with the type of position, of course).
In the game Bern - Vukcevic 17.Kh1 is a usual prophylactic move preparing f4. That was the best plan for White.
|Mar-07-11|| ||morfishine: <blue wave> Ref POGO endgame, the end is in sight! Its been exhausting yet very useful to see this through. Appreciate your help. morfishine chessforum|
|Mar-07-11|| ||chessgames.com: The registration for the third Chessgames Team Game has just begun:|
Chessgames Challenge: Team White vs Team Black, 2011
The game is for premium members, however anybody may observe the game while it's in progress. Kibitzing will be in two distinct private forums which will, upon the conclusion of the game, be merged and made public.
May the best team win!
|Mar-07-11|| ||Penguincw: Thanks chessgames.com.|
|Mar-08-11|| ||karpkasp: <cro777> Thanks for mentioning the 7. Nf3 option. I found 3 games following the moves you indicated. In all these games, 9... Be7 was played while Houdini prefers 9... Bb4 with a small edge to white. |
I played OTB the inferior 7. Bf4?! but white has nothing after 7... e6!
Finally, I think it's interesting to mention what I played the first time I was confronted to 3... b5.
I was really surprised to see Rybka playing this and I opted for an exchange sac
4. a4 c6 5. axb5 cxb5 6. b3!? (Now, I think 6. Nc3 is stronger) 6... e5 7. bxc4!? (7. Nf3 is quieter and maybe better) 7... Bb4+ 8. Bd2 Qxd4 9. Bxb4 Qxa1 10. cxb5 and white has some compensation because of the exposed situation of the black King and Queen.
I was really surprised to found a game where 7. bxc4 was played (by Kasparov!) but his opponent replied with 7... b4.
Do you know a game where the exchange sac was played? Houdini gives a small edge to black after 10... Be6, a correct evaluation I think.
|Mar-09-11|| ||cro777: <karpkasp: Do you know a game where the exchange sac was played?>
An interesting short game with double exchange sac:
[White "Ottershagen Hans"]
[Black "Wrede Christian"]
[Source "Opening Master"]
1. d4 d5 2. c4 dxc4 3. e4 b5 4. a4 c6 5. axb5 cxb5 6. b3 e5 7. bxc4 Bb4+ 8.
Bd2 Qxd4 9. Bxb4 Qxa1 10. cxb5 Nf6 11. Bc4 Qd4 12. Qxd4 exd4 13. e5 Bb7 14.
exf6 Bxg2 15. Nf3 Bxh1 16. Ne5 gxf6 17. Bxf7+
click for larger view
|Mar-09-11|| ||morfishine: Today is Natalie Pogonina'a birthday. Happy Birthday Natalie!|
|Mar-13-11|| ||karpkasp: <cro777> Thanks for this game! White can improve with 11. Nf3! with the edge according to Houdini. |
The real test of the 3... b5 line is the 7. d5 variation.
|Mar-13-11|| ||karpkasp: During the game the line 22. exd5 exd5 23.cxb6 Qxb6 24. Bh3 was analysed and it was mentioned that 24... Rbd8 is better than 24... Rfd8.|
click for larger view
I didn't understand exactly why at that time. Now, I think that 24... Rbd8 prevents pins on the b column.
24.... Rbd8 25. Nb3 axb4 26. axb4 Qxb4 27. Bxd7 Rxd7 28. Nc5 Re7 29. Rb1 Qa3 30. Rb3 Qa7 is equal according to Houdini 1.5
The same moves are losing after 24... Rfd8 because of the pin on the b column:
24... Rfd8 25. Nb3 axb4 26. axb4 Qxb4? 27. Bxd7 Rxd7 28. Nc5 Re7? 29. Rb1! 2.24 and then Houdini indicates 29... Qa5 30. Rb3 Qc7 31. Qb2 Qc8 32. Re1 Rxe1+ 33. Nxe1 Qg4 34. Rxb7
Of course, 24... Rfd8 is playable: black can "improve" with 28... Rdd8 1.20 but 26... Nf8! is the right move 0.10 according to Houdini.
|Mar-23-11|| ||bigchris: on 30 Jan 2011
<<Natalia Pogonina>: Thanks to everyone for playing...
Right now I am quite busy competing at the Tradewise Gibraltar Chess Festival; planning to play in the A group at Aeroflot Open next. Therefore, I am afraid I won’t be able to share my analysis & annotations with you promptly. Besides that, your own tree is probably more extensive and deeper since a lot of people have been contributing and, I guess, there has been a lot of discussing going on. On my side, I was playing rather straightforwardly and relying more on intuition than on sophisticated calculation.>
based on her comment, i was expecting her to give us a debriefing and share her thoughts--but just not promptly. it's now been almost 2 months. i'm about to give up on her. is anyone else still holding out?
|Mar-23-11|| ||Check It Out: I'm still waiting for the in depth article by her husband :)|
|Mar-24-11|| ||SamAtoms1980: <Tabanus: Extended list of analysts (please forgive me): ....... scormus, castle dweller, Thanh Phan, morfishine, SamAtoms1980, bayowulf, Garech, DaringSpeculator, Kinghunt, ....... WinKing, Once, zzzzzz. I love you all!>|
Hey, I made your list :-)
|Apr-10-11|| ||kevins55555: Very few people voted h7. How annoying. It is the best according to Rybka.|
|Apr-22-11|| ||LIFE Master AJ: <<Mar-23-11
Check It Out: I'm still waiting for the in depth article by her husband :)>> |
Its due out in May ... of 2199. ;)
|May-13-11|| ||LIFE Master AJ: Did anyone ever find a forced win ... at ANY point ... for the "World Team" here? (Just curious.)|
|May-31-11|| ||Golden Executive: 3 days ago, <PZ> wrote at Pogonina´s web site:|
"I tried quitting chess a couple of times, but it is harder than it sounds. After all, I love the game. Especially attractive to me is the analytical aspect - evaluating the position and finding the optimal move. A park player's joy of setting up a clever trap or swindling is not what appeals to me.
Meanwhile, it is sad to realize that modern technologies leave us less and less space for creativity. I remember the times when PCs were no match for top humans. Now we are not even in contention.
Correspondence chess is still alive though, as a <smart operator> using a chess engine is stronger than the engine itself. However, taking into account the trend, quite soon there would be no need in humans at all, and a win in correspondence chess will be achieved by the player who has the better PC."
I wonder what did he mean about <smart operator>?
|Jun-11-11|| ||cro777: <GE: I wonder what did he mean about <smart operator>?>|
Pogonina's husbend and manager Peter Zhdanov paraphrased Gary Kasparov talking about advanced chess (human player + computer):
"Weak human + machine + better process is superior to a strong computer alone and, more remarkably, superior to a strong human + machine + inferior process". (By process he understands human strategic guidance combined with the tactical acuity of a computer).
Commenting on the first free-style tournament Kasparov wrote: "The winner was revealed to be not a grandmaster with a state-of-the-art PC but a pair of amateur American chess players using three computers at the same time. Their skill at manipulating and “coaching” their computers to look very deeply into positions effectively counteracted the superior chess understanding of their grandmaster opponents and the greater computational power of other participants".
Spacebar Master is, by definition, <smart operator>.
|Jun-13-11|| ||Golden Executive: <cro777> Thanks for your reply. Reading your post quoting Kasparov, my brain immediately flashed: Did he lose the game vs IBM Deep Blue alone or vs the very first spacebar master (s) ? (rules did not allow humans “helping” engines). It is an old issue but still a mistery….What do you think ?|
|Jun-13-11|| ||cro777: <Golden Executive> Solely the very first spacebar master knows the truth.|
|Jul-31-11|| ||cormier: A Giri vs Kramnik, 2011|
|Jul-31-11|| ||AylerKupp: <<LIFE Master AJ>: Did anyone ever find a forced win ... at ANY point ... for the "World Team" here?>|
I certainly never did, not even close. The closest I got was lines involving 58.Ng2 rather than the 58.g4 that we actually played. The attractiveness of 58.Ng2 from my perspective was that starting the analysis several moves earlier most of the engines, including Rybka, evaluated the position as advantageous for Black with the lines involving 58...Qh1+ 59.Kh3 Rg1, even though they really weren't if one went deeper. So my hope was that she would enter this line due her (presumed) limited computer capabilities compared to ours. But by sliding forward or even just following the game it would become obvious to everyone, Natalia included, that these were not advantageous lines for Black. And, of course, she probably didn't even need the computer to see that.
Then again, I was probably justifiably considered a ranking member of the Flat Earth Society.
|Oct-22-11|| ||master of defence: its great|
|Oct-22-11|| ||OhioChessFan: <CIO: I'm still waiting for the in depth article by her husband>|
I am a bit disappointed he didn't want any of my song parodies for an accompanying soundtrack.
|Feb-15-12|| ||LIFE Master AJ: http://www.ajschess.com/lifemastera...|
|Jul-31-12|| ||The Last Straw: the first move was d4??!!!|
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