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Sicilian, Kan, 5.Nc3 (B43)
1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 a6 5 Nc3

Number of games in database: 3000
Years covered: 1870 to 2009
Overall record:
   White wins 34.1%
   Black wins 34.5%
   Draws 31.3%

Popularity graph, by decade

Explore this opening  |  Search for sacrifices in this opening.
PRACTITIONERS
With the White Pieces With the Black Pieces
Vitaly Tseshkovsky  20 games
Sergei Movsesian  18 games
Ruslan Ponomariov  17 games
Lajos Portisch  41 games
Sergei Rublevsky  27 games
Vadim Milov  24 games
NOTABLE GAMES [what is this?]
White Wins Black Wins
Anand vs I Sokolov, 1992
Carlsen vs Kamsky, 2005
A Samsonkin vs Nakamura, 2009
Spassky vs Tal, 1965
A Medina-Garcia vs Tal, 1966
Fedorov vs N Miezis, 2000
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 page 1 of 120; games 1-25 of 3,000  PGN Download
Game  ResultMoves Year Event/LocaleOpening
1. Anderssen vs De Vere  ½-½57 1870 Baden-BadenB43 Sicilian, Kan, 5.Nc3
2. A Schottlaender vs W Paulsen 1-039 1879 DSB-01.KongressB43 Sicilian, Kan, 5.Nc3
3. Winawer vs W Paulsen 0-137 1880 WiesbadenB43 Sicilian, Kan, 5.Nc3
4. J Minckwitz vs W Paulsen  1-042 1880 WiesbadenB43 Sicilian, Kan, 5.Nc3
5. Zukertort vs W Paulsen 0-124 1881 02.DSB-KongressB43 Sicilian, Kan, 5.Nc3
6. Wemmers vs W Paulsen  ½-½51 1881 DSB-02.KongressB43 Sicilian, Kan, 5.Nc3
7. J Schwarz vs W Paulsen  ½-½36 1881 DSB-02.KongressB43 Sicilian, Kan, 5.Nc3
8. Wittek vs Paulsen  0-152 1881 DSB-02.KongressB43 Sicilian, Kan, 5.Nc3
9. Winawer vs Paulsen 1-032 1881 DSB-02.KongressB43 Sicilian, Kan, 5.Nc3
10. Blackburne vs W Paulsen  1-030 1883 DSB-03.Kongress Nuernberg ;HCL 13B43 Sicilian, Kan, 5.Nc3
11. K Leffmann vs W Paulsen  0-149 1883 DSB-03.KongressB43 Sicilian, Kan, 5.Nc3
12. M Bier vs W Paulsen  1-067 1883 DSB-03.KongressB43 Sicilian, Kan, 5.Nc3
13. J Schwarz vs W Paulsen  ½-½46 1883 DSB-03.KongressB43 Sicilian, Kan, 5.Nc3
14. M Bier vs A Schottlaender  1-050 1883 DSB-03.KongressB43 Sicilian, Kan, 5.Nc3
15. Gunsberg vs W Paulsen  1-050 1885 04.DSB-KongressB43 Sicilian, Kan, 5.Nc3
16. J N Berger vs W Paulsen  ½-½49 1885 DSB-04.KongressB43 Sicilian, Kan, 5.Nc3
17. Von Gottschall vs W Paulsen  0-139 1885 DSB-04.KongressB43 Sicilian, Kan, 5.Nc3
18. J Noa vs W Paulsen  1-019 1885 DSB-04.KongressB43 Sicilian, Kan, 5.Nc3
19. A Schottlaender vs W Paulsen  ½-½53 1885 DSB-04.KongressB43 Sicilian, Kan, 5.Nc3
20. Max Weiss vs Paulsen  1-044 1887 DSB-05.KongressB43 Sicilian, Kan, 5.Nc3
21. Metger vs Paulsen 0-138 1889 DSB-06.KongressB43 Sicilian, Kan, 5.Nc3
22. G Marco vs J Holzwarth 0-117 1890 Kolisch memB43 Sicilian, Kan, 5.Nc3
23. Winawer vs W Paulsen  1-052 1892 DSB-07.KongressB43 Sicilian, Kan, 5.Nc3
24. K Walbrodt vs W Paulsen  1-049 1892 DSB-07.KongressB43 Sicilian, Kan, 5.Nc3
25. Albin vs W Paulsen  1-054 1892 DSB-07.KongressB43 Sicilian, Kan, 5.Nc3
 page 1 of 120; games 1-25 of 3,000  PGN Download
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Forcing Chess Moves by NIC

Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing >
Aug-03-05
Premium Chessgames Member
  refutor: the main idea of this opening is twofold...one it is to play ...d5 like all sicilians. it is a little easier because e6 has already been played. if you can't get ...d5 in the other goal is to get white to play e5. this will open up the a1-h8 diagonal which black can try and dominate after ...b5 and ...Bb7. a very sharp opening. one of the bonuses (for black) is that there's no real yugoslav attack/fischer-sozin attack/richter-rauzer for white e.g. rote moves that will lead to a strong attack.
Aug-03-05   SEMENELIN: Sicilian Kan is an aggressive defense for black but white can still equalize.
Aug-03-05
Premium Chessgames Member
  euripides: <jc> the charaacteristic feature of the Kan is extreme flexibility. The setup ressembles the Scheveningen but because the pawn is not on d6 the bishop can go to d6, c5 or b4 according to circumstances. Black needs to be prepared to play Scheveningen and Hedgehog-type positions (where White has got the Maroczy bind with c4 and e4), but can sometimes play more fluidly with the king in the centre or on the Q-side. The system suits a player who is playing for a win and likes to keep their options open. Besides, White can get in an awful mess if he does not understand what's going on.

With 5 Nc3 White rules out c4 and Black can play a more flexible version of the Scheveningen.

Aug-03-05   SEMENELIN: Scheveningen has a slow development and is really at its defensive position. Black is easilly pressured if white knows its positional advantages.The kan refutes white's attak.
Aug-03-05   jcmoral: Thanks guys. I like the idea of both of black's bishops on the queenside pointing kingside though that might mean if i castle kingside as black the defense could be a little thin. <euripides> mentioned that the black king could go queenside. Won't the hole on the c-file give white more attacking chances then?
Aug-03-05
Premium Chessgames Member
  euripides: <jc> Black often has plenty of pieces round the king. Queen's side castling by Black in response to White's Q-side castling is found in some lines of the Najdorf (6 Bg5 Nbd7) and Scheveningen (Keres attack) as well and is sometimes safer than K-side castling (for a world-class example of incorrect K-side castling see Spassky vs Petrosian, 1969 ). It's also sometimes possible to delay castling past move twenty and bamboozle the opponent, who doesn't know where to attack. The trick is to keep adequate flexibility -look at lots of games to get a variety of ideas and then see how the position develops.
Aug-04-05   SEMENELIN: I agree with <euripides>. Playing sicilian as white or black is very tricky but the kan opening an aggressive line for black. I have reviewed this game by Spassky vs Petrosian, 1969. Yup black has a bad castling and has a risky position. In this case black is forced to be defensive he has no counter play
Aug-06-05   jcmoral: One of my first games with the Kan. I feel like I missed the point of the opening. For example exchanging the dark-squared bishops was not what I had in mind. Also was I correct in agreeing to the draw? After the exchange of knights I felt I had slightly better pawn structure but had no real plan to get the king into the game.

[Site "http://www.queenalice.com/"]
[Date "2005.8.2"]
[Round "1"]
[White "NN"]
[Black "jcm"]
[Result "1/2-1/2"]
[ECO "B43"]
[WhiteELO "1844"]
[BlackELO "1818"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 Qc7 6. Bd3 Bc5 7. Nf3 Nc6 8. O-O Nf6 9. h3 b6 10. Bg5 Be7 11. Re1 Bb7 12. e5 Ng8 13. Bxe7 Ngxe7 14. b3 O-O-O 15. a4 Nb4 16. Na2 Nxd3 17. cxd3 Kb8 18. d4 Rc8 19. Rc1 Qd8 20. Rxc8+ Qxc8 21. Qc1 Qxc1 22. Rxc1 Bxf3 23. gxf3 Rc8 24. Rxc8+ Kxc8 25. Nc3 Nd5 26. Nxd5 1/2-1/2

Aug-06-05
Premium Chessgames Member
  OneArmedScissor: Adding to what refutor said:
The Kan is very flexible for black. It's a sort of "I'll wait for you to mess up, and then I'll pounce on your mistake(s)!" type of opening.
Aug-07-05   SEMENELIN: <jcmoral> i have analyzed ur game you should have probably have won in the end game. I think you should practice ur endgame. You exchange ur pieces earlier in the endgame. Exploit ur game first before declaring a draw.
Aug-07-05
Premium Chessgames Member
  euripides: <jc> mostly this looks nicely played. I might be tempted to play b5 rather than b6. The exchange of black-squared bishops often favours Black in the Kan, but you could also consider allowing Bxf6 gxf6 especially if you're going to castle Q-side. Possibly you should have played d6 (this may be easier with b5 rather than b6 as the bishop then has a retreat). At the end, if I'm seeing the position right, you should probably get your king to c6 before playing Nd5. Black would then be better though I imagine White should be able to hold.
Sep-13-05   TheMouse: Can any one find a couple
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Be3

games? I don't have a "special Membership" and I'm intrested in why this line is bad for black.

Sep-13-05   aw1988: Lack of development, probably.
Sep-13-05   TheMouse: Sry that's a typo, I mean bad for white
Sep-14-05
Premium Chessgames Member
  euripides: too much development, perhaps.
Sep-24-05   MonsieurL: I can't find this opening in Nunn's NCO.. can anyone help me find it? Thanks!!!
Sep-24-05   MonsieurL: Never mind; I found it. It is between B41 and B42, midway through the B41 Kan page for some reason!! Hopefully this will help someone else.
Mar-22-06   akashic: After 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be3 Nf6 7. Bd3 (If 7. Be2 then 7... Bb4 and white loses a pawn although it is a bit risky taking it. If 7. f3 then 7... Bb4 8. Qd2 d5! and Black is winning.) Bb4 8. Qd2 d5! and White is in a cramped position with little counterplay.

Be3 is not as bad in the 5. b5 line, although it will require very accurate play to mantain an advantage.

Mar-19-07   WTHarvey: Here is a little collection of winning combination in B43 miniatures: http://www.wtharvey.com/b43.html
May-01-07
Premium Chessgames Member
  plang: I am currently looking at the game J.Polgar - Short from Dortmund 1997.

It starts 1 e4..c5 2 Nf3..e6
3 d4..cd 4 Nd4..Qb6 5 Nb3..a6

It is categorized as B43 in Informant #70 but is not included in any of my Paulson / Kan books. 4..Qb6 seems to be an oddball variation that is difficult to categorize.

May-01-07   lonepsycho: <4...Qb6 seems to be an oddball variation that is difficult to categorize.>

It is called the Grivas Sicilian, I believe, after Greek GM Efstratios Grivas-- who has supposedly perfected the variation over the last 20 years.

http://www.wholesalechess.com/chess...

May-02-07
Premium Chessgames Member
  plang: Thanks, according to the cover of the Grivas book black has played ..Nc6 rather than ..e6.

This may transpose, of course, but there are some differences.

After 1 e4..c5 2 Nf3..e6
3 d4..cd 4 Nd4..Qb6 5 Nc3 black can play 5..Bc5 which is quite awkward for white. I am assuming that this line is not in the Grivas book.

May-17-07   naamloos: "The Sicilian with ...Qb6" by Zoran Ilic calls the variation with 2. ..e6 and 4. ..Qb6 the Kveinys variation after the Lithuanian GM Aloyzas Kveinys.

This book has information on both the Kveinys variation and the Grivas variation.

I was planning on using the Kveinys variation in my next tournament (which starts tomorrow), but I'm still having doubts about it.

I'm also considering using the Pin variation (1.e4 c5 2.Nf3 e6 3.d4 cd4 4.Nd4 Nf6 5.Nc3 Nb4), the Basman-Sale variation (4.Nd4 Bc5 which has some lines in common with the Kveinys) or the plain old Scheveingen (This is what I have always played so far with 2. ..d6, but now I wanted something different for change).

I still don't know for sure which I will use. I also don't know what to do against the annoying 1.e4 c5 2.Nf3 e6 3.Nc3.

May-17-07   naamloos: <After 1 e4..c5 2 Nf3..e6
3 d4..cd 4 Nd4..Qb6 5 Nc3 black can play 5..Bc5 which is quite awkward for white. I am assuming that this line is not in the Grivas book.>

White can play 6.Na4 after which play continues like 6. ..Qa5+ 7.c3 Bxd4 8.Qxd4, after which white seems to keep an edge at the very least.

Jan-22-08
Premium Chessgames Member
  midknightblue: <akashic> thx for the very good analysis on the 6. Be3 lines. Is this home analysis, from a book, or from an engine. Looks like you are right on the money. I just want to know where I can get more analysis like this, since John Emms book on the sicilian kan doesnt cover a lot of the less common lines. Thx.
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