Chess Against Computer

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premium_steve 82 ( +1 | -1 )
c3 Sicilian Question :) I was wondering about this idea in c3 Sicilian games:
1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.c4?!
(Now, this might seem a bit ridiculous - moving the c-pawn twice within the first four moves. It leaves the d4 backward and weak and it doesn't develop a piece. Is it a bad idea?)
5...Nb6
(This seems like the best move, but 5...Nb4 might be possible too. The position is a lot like an Alekhine, but white hasn't played d4 and black has played c5 instead of d6.)
6.b4
(I like this move better than an immediate 6.d4. But is this something White wants to go into? 6...d6 might be a good answer for Black, strengthening the c5 pawn and leaving White with a bad d-pawn. Accepting the sacrifice might be good too.)

I thought I'd mention this for fun and for my own improvement. Sometimes it's good to just let all your ideas out even if they turn out to be bad.
If you understand why they're bad, that helps a lot I think.

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bucklehead 62 ( +1 | -1 )
Hmm This is not my kind of position, but my gut sense is that 5. b4 cxb4 is a killer. White doesn't "gambit" a pawn in the traditional sense, especially since black's pawn take much time to reclaim, and while it's there it's a serious headache to develop white's QN to its natural squares. Sure, white gets a big center, but without any pieces developed it just doesn't strike me as that strong. 5. d4 cxd4 6 Qxd4 Nc6 7. Qe4 e6 8 Nc3 d5 solves a lot of the potential "cramping" problems black might face down the line. 5. d4 cxd4 6. Nf3 Nc6 7. Na3 e6 8. Nb5 d5 9. Nbxd4 also looks ugly for white, but there's a lot of messiness to contend with.

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bucklehead 109 ( +1 | -1 )
Three games Here are three games I found poking around. White's sole win is in a game where he outclasses black by 400 rating points, so I don't know if they'll be of much value. Interesting is the option 4...Nc7.

[Event "Christmas Open"]
[Site "Zadar CRO"]
[Date "2001.??.??"]
[White "Mestrovic,Z"]
[Black "Lovakovic,F"]
[Result "1-0"]
[WhiteElo "2419"]
[BlackElo "2073"]
[ECO "B22"]
[Round "3"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. c4 Nb6 5. a4 d5 6. exd6 Qxd6 7. a5 Qe6+
8. Be2 N6d7 9. Nc3 g6 10. Nf3 Bg7 11. O-O O-O 12. d4 Na6 13. d5 Qd6 14. Nb5 Qb8
15. Bg5 Nf6 16. Qc1 Bd7 17. Re1 b6 18. Bf1 Bxb5 19. cxb5 Nb4 20. Ne5 Nbxd5 21. Bxf6 Nxf6
22. Nc6 Qd6 23. Qd1 Qxd1 24. Nxe7+ Kh8 25. Raxd1 Rfd8 26. a6 Rxd1 27. Rxd1 Bf8 28. Nc6 Kg7
29. g3 h6 30. Bg2 c4 31. Rc1 Bc5 32. Rxc4 Rc8 33. Kf1 Bd6 34. b3 Rc7 35. Nd4 Ne8
36. Bb7 Bc5 37. Nc6 Nd6 38. Rxc5 bxc5 39. b6 1-0

[Event "4th Open"]
[Site "Korinthos GRE"]
[Date "2000.??.??"]
[White "Gabai,A "]
[Black "Kapnisis,S"]
[Result "0-1"]
[BlackElo "2332"]
[ECO "B22"]
[Round "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. c4 Nb4 5. a3 N4c6 6. Nf3 d6 7. exd6 Qxd6
8. d3 Bg4 9. Be2 Nd7 10. Nc3 Bxf3 11. Bxf3 Nde5 12. Bxc6+ Nxc6 13. Nb5 Qd7 14. Bf4 e5
15. Bg3 h5 16. Qe2 h4 17. Bxe5 O-O-O 18. O-O-O Re8 19. d4 cxd4 20. Nxa7+ Nxa7 21. Rxd4 Qxd4
22. Bxd4 Rxe2 23. Bxa7 Be7 24. Bb6 Bf6 25. a4 Rxb2 26. a5 0-1

[Event "?"]
[Site "corr NLD jub"]
[Date "1991.??.??"]
[White "Duinmaijer "]
[Black "De Vries "]
[Result "0-1"]
[ECO "B22"]
[Round "?"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. c4 Nc7 5. f4 d6 6. Nf3 Nc6 7. d4 cxd4
8. Nxd4 Nxd4 9. Qxd4 Ne6 10. Qd5 Bd7 11. Qxb7 dxe5 12. fxe5 Nd4 13. Bd3 Bc6 14. Qa6 Bxg2
15. Rg1 Nf3+ 16. Kf2 Nxe5 17. Be2 Bc6 18. Be3 e6 19. Rg5 Qf6+ 20. Ke1 Nf3+ 21. Kd1 Bd7
22. Rg2 Rd8 23. Kc1 Bc5 24. Bd2 O-O 25. Qa5 Nxd2 26. Nxd2 Bc6 27. Rg3 Bb6 28. Qa3 Qf2
29. Bd3 e5 30. c5 Bxc5 31. Qc3 Bd4 0-1

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--tc-- 12 ( +1 | -1 )
hmm always enjoy playing d5 on c3 as black and playing c3 sicilian as white isnt really my style, I dont think its .. fun :)

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thunker 213 ( +1 | -1 )
For what it's worth Chessbase has the following games using this position. Looks better for black on the surface.
[Event "Cologne SV-ch"]
[Site "Cologne"]
[Date "1995.??.??"]
[Round "?"]
[White "Heppner, Herbert"]
[Black "Breuer, Marc"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "102"]
[EventDate "1995.??.??"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. c4 Nb6 5. f4 d5 6. Na3 d4 7. d3 Nc6 8. Nf3 g6
9. Be2 Bg7 10. O-O f6 11. exf6 exf6 12. Bd2 O-O 13. h3 Re8 14. Nh2 a6 15. Bf3
Qd6 16. Be4 Bd7 17. f5 g5 18. Qh5 Re7 19. Rae1 Be8 20. Qf3 Ne5 21. Qf2 Bc6 22.
Nf3 Bxe4 23. Nxe5 Rxe5 24. Rxe4 Rxe4 25. dxe4 Re8 26. Re1 Bf8 27. b3 Qe5 28. h4
h6 29. hxg5 hxg5 30. Qf3 Bd6 31. Kf2 Re7 32. g4 Rh7 33. Rg1 Nd7 34. Nc2 Qe8 35.
Ne1 Ne5 36. Qe2 Rh3 37. Qf1 Rh2+ 38. Rg2 Nxg4+ 39. Ke2 Qxe4+ 40. Kd1 Qb1+ 41.
Ke2 Qe4+ 42. Kd1 Rxg2 43. Nxg2 Ne3+ 44. Nxe3 dxe3 45. Qe2 Bf4 46. Bc1 Qd4+ 47.
Kc2 Qe4+ 48. Kd1 Qxf5 49. Bxe3 Qb1+ 50. Kd2 Qxa2+ 51. Kd3 Qxb3+ 0-1

[Event "Barcelona op rap"]
[Site "Barcelona"]
[Date "1996.12.14"]
[Round "1"]
[White "Vives Font, Xavier"]
[Black "Alcala Valiente, Joan Carles"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1755"]
[BlackElo "2195"]
[PlyCount "44"]
[EventDate "1996.12.??"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. c4 Nb6 5. Nc3 Nc6 6. Nf3 d5 7. cxd5 Nxd5 8. Bb5
Ndb4 9. O-O a6 10. Bc4 e6 11. a3 Nd5 12. Re1 Be7 13. d4 Nb6 14. d5 Nxc4 15.
dxc6 Qxd1 16. Rxd1 bxc6 17. Bg5 Bxg5 18. Nxg5 Nxe5 19. Nce4 h6 20. Nd6+ Ke7 21.
Nge4 Nd7 22. Rac1 Rb8 0-1

[Event "Korinthos op 4th"]
[Site "Korinthos"]
[Date "2000.07.25"]
[Round "1"]
[White "Gabai, Alvertos"]
[Black "Kapnisis, Spyridon"]
[Result "0-1"]
[ECO "B22"]
[BlackElo "2332"]
[PlyCount "51"]
[EventDate "2000.07.25"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. c4 Nb4 5. a3 N4c6 6. Nf3 d6 7. exd6 Qxd6 8. d3
Bg4 9. Be2 Nd7 10. Nc3 Bxf3 11. Bxf3 Nde5 12. Bxc6+ Nxc6 13. Nb5 Qd7 14. Bf4 e5
15. Bg3 h5 16. Qe2 h4 17. Bxe5 O-O-O 18. O-O-O Re8 19. d4 cxd4 20. Nxa7+ Nxa7
21. Rxd4 Qxd4 22. Bxd4 Rxe2 23. Bxa7 Be7 24. Bb6 Bf6 25. a4 Rxb2 26. a5 0-1

[Event "Alicante op 4th"]
[Site "Alicante"]
[Date "2000.??.??"]
[Round "2"]
[White "Fernandez Siles, Luis"]
[Black "Komljenovic, Davor"]
[Result "1/2-1/2"]
[ECO "B20"]
[WhiteElo "2165"]
[BlackElo "2514"]
[PlyCount "40"]
[EventDate "2000.10.22"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]

1. e4 c5 2. c4 Nf6 3. e5 Nd5 4. d4 cxd4 5. Nf3 d6 6. Nxd4 e6 7. Nc3 Nxc3 8.
bxc3 Qc7 9. Bd2 Nc6 10. exd6 Bxd6 11. Bd3 O-O 12. Qe2 e5 13. O-O Bd7 14. Nf5 h6
15. Qh5 e4 16. Nxh6+ Kh8 17. Ng8+ Kxg8 18. Bh6 exd3 19. Bxg7 Kxg7 20. Qg5+ Kh7
1/2-1/2

[Event "Zadar op"]
[Site "Zadar"]
[Date "2001.12.17"]
[Round "3"]
[White "Mestrovic, Zvonimir"]
[Black "Lovakovic, F."]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2419"]
[BlackElo "2073"]
[PlyCount "77"]
[EventDate "2001.12.15"]
[Source "ChessBase"]
[SourceDate "2002.01.21"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. c4 Nb6 5. a4 d5 6. exd6 Qxd6 7. a5 Qe6+ 8. Be2
N6d7 9. Nc3 g6 10. Nf3 Bg7 11. O-O O-O 12. d4 Na6 13. d5 Qd6 14. Nb5 Qb8 15.
Bg5 Nf6 16. Qc1 Bd7 17. Re1 b6 18. Bf1 Bxb5 19. cxb5 Nb4 20. Ne5 Nbxd5 21. Bxf6
Nxf6 22. Nc6 Qd6 23. Qd1 Qxd1 24. Nxe7+ Kh8 25. Raxd1 Rfd8 26. a6 Rxd1 27. Rxd1
Bf8 28. Nc6 Kg7 29. g3 h6 30. Bg2 c4 31. Rc1 Bc5 32. Rxc4 Rc8 33. Kf1 Bd6 34.
b3 Rc7 35. Nd4 Ne8 36. Bb7 Bc5 37. Nc6 Nd6 38. Rxc5 bxc5 39. b6 1-0

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