+---------------------------+  

were played? does this connect the black stones with enough surety?

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. . . . . . .  

If the ladders aren't good, then White could simply play one of these.

White also could play other moves which affect the potential ladders.

Overall, Black position is weak; there is bad aji. Even though Black has played 3 stones and White only 2, Black's position is not superior to White's - or at least not very much better. So Black's stones aren't working well together.