  Figure 5: W 7 -- W 11  In the real game: Index * Backward *
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Variation 1 (Attacking while building)  figure 5  jansteen 3d*:
I tried to make the game small scale... However, white doesn't
have enough space to make a base here, so attacking seems most
natural thing to do. Good move, preventing both r16 or s16. This
move aims at two follow-up shapes: s10, or s13. Both shapes are
hard to attack. In this position most normal way to play for
black seems variation "Attacking while building".