Calvin (11k): To me, this example doesn't add much and is quite confusing. in the original example, pushing into the diagonal, is a bad move. I think you need more than one diagonal to say something interesting.
It's harder for me to think of an example showing the problem with this shape. Maybe more stones have to be added than in the above example, but this is the thing I would be trying to understand by reading Minue's page.
unkx80: I suspect one of the reasons is this:
, a or b is weak. It hardly applies any pressure on the
stone. Both
and a make
a play on a compromised diagonal. Try not to make plays that improve the status of stones your opponent has already played.
Also, this: