Dragonslayer wrote on 12/09/06 at 17:50:48:

I have played the variations after 1.e4 c5 2.Nf3 g6 3.d4 Bg7 (or the obvious transposition from the modern defence 1.e4 g6 2.d4 Bg7 3.Nc3 c5!? or 1.d4 g6 2.e4 etc.) with both colours. I always thought that 4.dxc5 Bxc3+ was the most interesting choice. In case of 4.dxc5 Qa5 5.Bd2 Qxc5 6.Nd5 I don't like 6...Na6 but prefer 6...b6 7.Bb4 (or 7.Be3) 7...Qc6 8.Bb5 Qb7 which is not so easy to crack. Don't believe Fritz who thinks the position is +-. It does not understand such positions and overrates White's development. The modern is a counterattacking opening and White cannot mount a decisive assault before Black pushes the pieces back and finishes development. I think White has slightly the better chances but Black's position is playable.

Btw. when Black has two options after 4.dxc5, logically one needs to show something after both 4...Qa5 and 4...Bxc3+ to put the ?! sign after 3...c5 (or 3...Bg7 in the Dragon moveorder).

Ok since you insist on being shown why the dubious desigination is justified after 3..c5?!, I will attempt to do so with the aid of a couple of illustrative games and sample analysis:

[Event "III Open"]

[Site "Calvia ESP"]

[Date "2006.??.??"]

[White "Jones,G"]

[Black "Gonzalez Arribas,V"]

[Round "6"]

[Result "1-0"]

[WhiteElo "2430"]

[BlackElo "2297"]

[ECO "B23"]

1. e4 c5 2. Nc3 g6 3. d4 Bg7 4. dxc5 Bxc3+ 5. bxc3

Qa5 6. Qd4 Nf6 7. Qb4 Qc7 8. Nf3 (8.Bb5!+/= - OFWATA) Nc6 9. Qa4

Ne5 10. Be3 b6 11. Qa3 bxc5 12. Bxc5 d6 13. Nxe5

dxc5 14. Bb5+ Kf8 15. f4 Nxe4 16. Bc6 Bb7 17. Bxe4

Bxe4 18. O-O-O Bf5 19. c4 f6 20. g4 Be6 21. Nd3

Rc8 22. g5 Bxc4 23. gxf6 exf6 24. Qc3 Qf7 25. Nf2

Kg7 26. Ne4 Bd5 27. Nd6 Qe6 28. Nxc8 Bxh1 29. Nd6

Rd8 30. Nf5+ Qxf5 31. Rxd8 Qxf4+ 32. Kb2 Qb4+ 33. Qxb4

cxb4 34. Rd7+ Kh6 35. Rxa7 f5 36. Kb3 f4 37. Kxb4

Be4 38. Kc3 g5 39. Kd2 Kh5 40. Re7 Bf5 41. a4

Kg4 42. a5 Bc8 43. Rxh7 Kf3 44. Rc7 Bh3 45. Rc3+

Kg2 46. Rxh3 g4 47. Ra3 f3 48. a6 1-0

[Event "34th World Open"]

[Site "Philadelphia USA"]

[Date "2006.??.??"]

[White "Sadvakasov,D"]

[Black "Dougherty,M"]

[Round "3"]

[Result "1-0"]

[WhiteElo "2619"]

[BlackElo "2186"]

[ECO "B06"]

1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 Bxc3+ 5. bxc3

Nf6!? 6. e5 (6.Bh6!+/- - OFWATA) Ne4 7. Bc4 Nxc5 8. Nf3 Qc7 9. O-O

Ne6 10. Qe2 b6 11. Nd4 Nc6 12. Nb5 Qb8 13. f4

a6 14. Nd4 Bb7 15. Be3 Qc7 16. Nb3 b5 17. Bd3

Na5 18. Nxa5 Qxa5 19. c4 bxc4 20. Bxc4 Rc8 21. Rad1

Ng7 22. Rb1 Qc7 23. Rxb7 Qxb7 24. Bxa6 Rxc2 25. Qxc2

Qxa6 26. Bc5 Qc6 27. Rc1 Ne6 28. Be3 Qxc2 29. Rxc2

O-O 30. a4 Ra8 31. Ra2 Nc7 32. a5 Nd5 33. Kf2

Ra6 34. Bd2 Kf8 35. g4 e6 36. Ra3 f5 37. gxf5

gxf5 38. Ke2 Nc7 39. Rb3 Nd5 40. Kd3 Ke7 41. Rb8

Kf7 42. Rc8 d6 43. exd6 Rxd6 44. Ke2 Ra6 45. Rb8

Kg6 46. Rb3 h5 47. Kd3 h4 48. Kd4 Kh5 49. h3

Rc6 50. Ra3 Nc7 51. Kd3 Rd6+ 52. Ke2 Ra6 53. Ra1

Nd5 54. Kf3 Nf6 55. Be3 Ne4 56. Ke2 Kg6 57. Bd4

Kf7 58. Bf2 e5 59. fxe5 Ng5 60. Bxh4 Nxh3 61. Kf3

Kg6 1-0

[Sample Line - OFWATA]

[Date "2006.??.??"]

[White "Toppy"]

[Black "Toppy"]

[Round ""]

[Result "]

[WhiteElo]

[BlackElo]

[ECO "B06"]

1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 Qa5 5. Bd2

Qxc5 6. Nd5 b6 7. Bb4 Qc6 8. Bb5 Qb7 9. Qf3!

Bxb2 10. Bc3 Bxa1 11. Bxa1 f6 12. e5 e6 13. exf6

Nh6 14. Qa3 Nc6 15. Nf3 Nf7 16. O-O exd5 17. Nd4

Nfe5 18. Re1 Kd8 19. Rxe5 Nxe5 20. Qe7+ Kc7 21. Ne6+

Kb8 22. Qd6+ Qc7 23. Qxc7# 1-0

The above lines I believe are the most testing for black to meet, and as far as I can tell he faces a very unpleasant defensive task.

Toppylov