a typical Dragon line
12... Nc4 picks up a bishop
13. Bxc4 Rxc4 14. g4 b5 15. h5 b4 16. Nd5 e6 17. Nxf6+ [17. Nxb4] 17... Qxf6 18. hxg6 hxg6 19. Qh2 Rfc8 20. Rd2 e5 21. g5 Qd8 22. Nb3 [22. Nf5] 22... Qc7 23. Kb1 a5 24. Qf2 Rc6
you can see the potential of the half-open c-file when White castles Q-side
25. f4 ?
allows opening of long diagonal
25... a4 26. Nd4 b3 27. f5 exd4 28. Qh4 bxc2+ 29. Kc1 Qb6 30. Qh7+ Kf8 31. Rdh2 gxf5 32. exf5
32... Qxb2+ 33. Kxb2 dxe3+ 0-1
Let's look at the finish again:
34. Kc1
[34. Qxg7+ Kxg7 35. Rh7+ Kf8 is lost]
34... Bb2+ 35. Kxb2 Rb8+ 36. Ka1 c1=Q+ 37. Rxc1 Rxc1# 0-1
This document (sic5.txt.html) was last modified on 25 Jan 1996 by
Dr. Dave