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centralfiles
Member since Nov-29-08 · Last seen May-18-18
Those who don't know better think that opening knowledge is all memorization. This is just plain not true, most successful opening play comes from understanding the positions. A good opening player will be able to figure out why certain moves are wrong despite not having seen the move before. Rote memorization rarely gets results with the lucky exception of an opponent playing perfectly into some prepared trap.

If anyone wishes to post analysis here on positions they are familiar with, your more than welcome.(Preferably not general comments for the uninitiated but real analysis).

Here are links to ideas already in the forum (admittedly not much at this point)

On chess principles and their relevance to modern play centralfiles chessforum (kibitz #4)

Just a point about controlling the center with pawns centralfiles chessforum (kibitz #13)

The Ruy Lopez
1.e4 e5
2.Nf3 Nc6
3.Bb5 Na6
4.Ba4 Nf6
5.O-O Nxe4
6.Re1 -A common mistake- centralfiles chessforum (kibitz #23)

1.e4 e5
2.Nf3 Nc6
3.Bb5 Nf6
4.O-O Nxe4

5.Re1-centralfiles chessforum (kibitz #21)

5.d4 a6!?
6.Ba4 exd4 <6.Bd3 d5=>

7.Nxd4-Not the best reply- centralfiles chessforum (kibitz #25)

7.Re1 d5

A. 8.c4!?-This line is underappreciated- centralfiles chessforum (kibitz #28)

B. 8.Nbd2-centralfiles chessforum (kibitz #31)

C. 8.Bg5 This line leads to messy tactical situations

C1 8...Qd6-centralfiles chessforum (kibitz #33)

C2 8...Be7-The books got this one horribly wrong-centralfiles chessforum (kibitz #34)

C3 8...f6-this messy line is not covered adequately in the literature <up until now:)> centralfiles chessforum (kibitz #42)

D. 8.Nxd4-this is the main line-pending

1.e4 e5
2.Nf3 Nc6
3.Bb5 Nf6
4.O-O Nxe4
5.d4 a6
6.Bxc6-pending

1.e4 e5
2.Nf3 Nc6
3.Bb5 Nf6

4.d3-pending

4.Nc3-pending

4.d4 and 4.Qe2-pending

Chessgames.com Full Member
   Current net-worth: 2,036 chessbucks
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   centralfiles has kibitzed 797 times to chessgames   [more...]
   May-18-18 Team White vs Team Black, 2017 (replies)
   May-07-18 FSR chessforum
 
centralfiles: If your still interested in this position< arising from the Bxf7+ move in the c3 sicillian> we discussed awhile back on this forum: [DIAGRAM] User: kwid <Kurt widman-canadian correspondance champion im assuming you know of him> posted analysis on my forum showing ...
 
   May-06-18 J L Arnason vs Adams, 1992
 
centralfiles: 5...d6 is playable 9...Qf6 would be completely equal.
 
   Apr-13-18 Chessgames Bookie chessforum (replies)
 
centralfiles: Bookie should automatically get some premium time for his/her efforts. No?
 
   Mar-23-18 Ding Liren vs Grischuk, 2018 (replies)
 
centralfiles: If ding doesnt manage to win this will haunt him for a long time.
 
   Mar-20-18 Caruana vs Ding Liren, 2018 (replies)
 
centralfiles: this is becoming a comedy of errors.
 
   Mar-19-18 W So vs Caruana, 2018 (replies)
 
centralfiles: It's adraw with a b pawn a win with a pawn. See Carlsen vs Anand, 2014 Lasker vs Ed. Lasker, 1924
 
(replies) indicates a reply to the comment.

Opening ideas!?

Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Apr-26-15
Premium Chessgames Member
  centralfiles: <lost in space> Good luck then, But be warned the stronger player will win the berlin wall so you must be careful when facing stronger opponents.
Apr-26-15
Premium Chessgames Member
  lost in space: Thanks, yes, you are right. Against strong players I try to set the board on fire. Berlin is wrong here.
Apr-26-15
Premium Chessgames Member
  centralfiles: <lost in space: Thanks, yes, you are right. Against strong players I try to set the board on fire. Berlin is wrong here.> And If your well prepared You can often drive home the full point. Centralfiles vs D.L.<2350> Game/30 1.e4 e5
2.Nc3 Nf6
3.Bc4 Bb4
4.Nf3 Nc6
5.Nd5 Nxe4
6.c3 Bc5<?!>
7.d4 exd4
8.O-O O-O
9.Re1 Nf6(...Re8 Bg5 )
10.Bg5 Be7


click for larger view

11.Rxe7! Nxe7
12.Nxf6+ gxf6
13.Bxf6 Δ Qd2
The entire line was prepared and played in one clock minute.

Jul-06-15
Premium Chessgames Member
  Penguincw: Congrats <centralfiles> for winning the Spring Leg. I thought <Chnebelgrind> was running away with the leg, but you caught up to him. You may have been denied first place during <Switch>'s first trial, but not this time. ;)
Aug-16-15
Premium Chessgames Member
  centralfiles: Thanks Penguin
Congrats on making Bookie.
Mar-24-16
Premium Chessgames Member
  eternaloptimist: <centralfiles> Hey how's it going? I just want to wish u good luck in the championship leg of bookie! I c u r in 2nd place now. I was in the top 30 of this leg for a while but I've dropped down considerably in the last week tho. It looks like <TIMER> & u hv the best chance to win but u def can't count out <SwitchingQ>
Mar-24-16
Premium Chessgames Member
  centralfiles: Thanks I'll need the luck.
I was actually hovering about the 10-15k mark for most of the leg but hit a good lucky streak in the last few days. Still another month to the leg though a lot will probably yet be happening. Good luck unto you...
Mar-24-16
Premium Chessgames Member
  Annie K.: <centralfiles> Hi! I'm dropping by to ask if maybe you'd like to be the Bookie for one of the legs in the 2016 cycle? :)
Mar-24-16
Premium Chessgames Member
  centralfiles: While I'm honored by the offer I'm afraid I'll have to decline I'm simply not online consistently enough to be able to be bookie.
Mar-24-16
Premium Chessgames Member
  Annie K.: Ok, no problem. :)
May-06-16
Premium Chessgames Member
  centralfiles: I have been experimenting very successfully for a year or two now in online blitz with the crazy e4 c5 c3 Nf6 e5 Nd5 d4 cxd4 Nc6 Bc4 Nb6 Bxf7+!? Kxf7


click for larger view

e6+!?
The deeper I'm looking in to it the more I'm beginning to think it might be strong enough for a surprise try(in blitz) even at the highest level. How would you try to answer it?

May-26-16
Premium Chessgames Member
  FSR: Note that Giri avoided the bishop sac with ...dxe5 rather than ...Nb6 in R Mamedov vs A Giri, 2016. No doubt he was quaking in his boots. :-)
May-27-16
Premium Chessgames Member
  centralfiles: you should've seen the disappointment on Mamedovs face when he saw that move... ;)

I tried to check databases though I don't have chessbase, on chesstempo there were quite a few games but white did quite well if you (discount the 9.Ng5 and 10.Ng5 games) take rating into account.

Jan-04-17
Premium Chessgames Member
  centralfiles: 1.e4 c5
2.c3 Nf6
3.e5 Nd5
4.d4 cxd4
5.Nf3 d6
6.cxd4 Nc6
7.Bc4 Nb6
8.Bxf7+<!?>


click for larger view

8...Kxf7
9.e6+<!> Kg8
10.d5 Ne5
11.Nc3 <Best, stockfish notwithstanding> 11...g6


click for larger view

This is easily the most common position reached after 8.Bxf7 I must have played this upwards of 40 times in Blitz games.

12.Nxe5 dxe5
13.Qf3 Qe8
14.Qe4 Bg7
15.Be3


click for larger view

This position has netted me many free blitz points. 15...Qf8 <16.a4 is coming so black must save the knight as exchanging in center is ggod for white at every point. 15..Qd8 16.O-O followed by an evntual f4 will only make whites job easier> 16.a4 Qf5
17.Qb4


click for larger view

17...e4 <The best try, other moves will end up leaving white an extra passed a-pawn> 18.Rd1! <it took me a long time to realize this move was the only way for white to retain a possible winning advantage. moves such as O-O-O, Qxe7, Bxb6 or capturing on e4 simply peter out> 18...Bxc3+<!?><This bold exchange might still save the draw, again we must ignore stockfish here> 19.bxc3 <Qxc3 takes pressure off e7 allowing ...h6> 19...Nxd5 <The point of exchanging the bishop of course>


click for larger view

20.Rxd5 Qxd5
21.Qxe7 Qxe6!<...Bxe6 Bd4 Qd7 Qf6 is winning> 22.Qd8+ Kf7
23.Qxh8 Qf6!! <The point of 18...Bxc3+> 24.Qxh7+ Qg7
25.Qxg7+ <Forced now as 25.Qh4 Qxc3+ will get black his draw> 25...Kxg7


click for larger view

And now I must turn to you FSR
Does white have a win here?
Perhaps just winning chances?
Or will a GM draw easily with the black pieces?

Apr-10-17
Premium Chessgames Member
  FSR: Congratulations on winning the ChessBookie crown! Well done!
Apr-11-17
Premium Chessgames Member
  moronovich: Congratulations on winning the Championship !

If Onischuk had won,it would have been yours truly.

Apr-14-17
Premium Chessgames Member
  centralfiles: Thank you.
Yes I am lucky there was no upset there.
Dec-25-17
Premium Chessgames Member
  Penguincw: Merry Christmas and Happy New Year to the reigning Chessbokie champion, <centralfiles>. Good luck.
Mar-04-18
Premium Chessgames Member
  kwid: <Does white have a win here? Perhaps just winning chances? Or will a GM draw easily with the black pieces?>

Your line with 11...g6 should lead to a win for white even with opposite colored bishop present. But black has better options to at least achieve equality as shown below.

<1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Nf3 d6 6. cxd4 Nc6 7. Bc4 Nb6 8. Bxf7+ Kxf7 9. e6+ Kg8>

(9... Kxe6 10. Ng5+ Kd7 11. Nf7 Qe8 12. Nxh8 g5 13. d5 Ne5 14. Bxg5 Bg7 15. O-O Qxh8 )

<10. d5 Ne5>

(10... Nb4 11. Nc3 Qc7 12. Ng5 Qc4 13. Qf3 Nd3+ 14. Kd2 Bxe6 15. Nxe6 Ne5 16. Qe2 Nxd5 )

<11. Nc3 g6>

(11... Nbc4 12. Nd4 b5 13. f4 b4 14. Ne4 Ng6 15. Qh5 Qe8 16. O-O Nb6 17. Nb5 Qxb5 18. Qf5 h6 19. Qxg6 Qxd5 20. Qf7+ Kh7 21. Ng5+ hxg5 22. Qh5+ Kg8 23. Qf7+ )

<12. Nxe5 dxe5 13. Qf3 Qe8 14. Qe4 Bg7 15. Be3 Qf8 16. a4 Qf5 17. Qb4 e4 18. Rd1 Bxc3+ 19. bxc3 Nxd5 20. Rxd5 Qxd5 21. Qxe7 Qxe6 22. Qd8+ Kf7 23. Qxh8 Qf6 24. Qxh7+ Qg7 25. Qxg7+ Kxg7 26. Kd2 Bd7 27. a5 a6 28. c4 Ba4 29. Kc3 Rc8 30. Rc1 Rd8 31. Bd4+ Kh6 32. Re1 Bc6 33. Re3 g5 34. Rh3+ Kg6 35. Be3 g4 36. Rh6+ Kf5 37. Rh5+ Kf6 38. Kb4 Rc8 39. Rh4 Rg8 40. Rh7 Rc8 41. Bd4+ Kf5 42. Rf7+ Kg6 43. Rg7+ Kf5 44. Be3 Rh8 45. Rg5+ Kf6 46. Rxg4 Rxh2 47. g3 Rh5 48. Rg8 Re5 49. Bd4 Kf7 50. Rg4 Re6 51. Rg7+ Kf8 52. Rc7 Ke8 53. Bc5 Rg6 54. Re7+ Kd8 55. Rh7 Rg8 56. Be3 Rg6 57. Kc5 Ke8 58. Kd4 Kf8 59. Ke5 Kg8 60. Rh5 Kf7 61. Bd4 Rg4 62. Rf5+ Ke8 63. Kf6 Kd8 64. Rh5 Rg8 65. Bc5 Kc7 66. Rh7+ Kc8 67. Rh5 Be8 68. Rh4 Bc6 69. g4 1-0>

Mar-04-18
Premium Chessgames Member
  diceman: <centralfiles:

Does white have a win here?
Perhaps just winning chances?>

It looks like a win for white.

Mar-04-18
Premium Chessgames Member
  centralfiles: Thanks for the analysis I will need to take a close look at this long variation: I am at a loss about how you can generate it so fast.
Mar-04-18
Premium Chessgames Member
  centralfiles: Were you using an engine to help check these lines?
Mar-04-18
Premium Chessgames Member
  centralfiles: <kwid> I undersyand that Black has better options up to 11...g6 but Im not really sure black has equality after 10...Ne5

In your ..Nbc4 line for example
<11... Nbc4 12. Nd4 b5 13. f4 b4 14. Ne4 Ng6 15. Qh5 Qe8 16. O-O Nb6 17. Nb5 Qxb5 18. Qf5 h6 19. Qxg6 Qxd5 20. Qf7+ Kh7 21. Ng5+ hxg5 22. Qh5+ Kg8 23. Qf7+>

there are so many options for both sides along the way what about 16.Ng5 Ba6 17.Qe2
Is black totally equal here as well?

There was some discussion of this line on FSRs forum FSR chessforum (kibitz #2206). Its not sound of course but perhaps good enough for blitz or the occasional blitz at higher levels.

Your 1st line with 9...Kxe6 12...g5! is perhaps the best reply. Though the simplest IMO is 9...Kg8 10.d5 Nxd5! 11.Qxd5 Qa5+ 12.Nc3 Qxd5 13.Nxd5 Rb8! with a plus for black.

Mar-04-18
Premium Chessgames Member
  diceman: <centralfiles: Were you using an engine to help check these lines?>

I only looked at your diagram
from move 25 on with an engine.

Not the beginning of the game.

Mar-05-18
Premium Chessgames Member
  centralfiles: I meant that.
You didnít post variations though.
If kwid didnít use engine... well itís just impossible to me. That being said using the 3rd rank for a rook lift does seem pretty powerful I was trying (with some success) to use the d-file to get room active.
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