An idle mind is the debil's workshop.

I will make thickness in the center. That's why I will attack invading stones in my thickness. 

My 56th KGS game (vs [7k], 2 stones game, B)

I had thought that I could easily kill the white group in the center before white playing attachment at L7.

I read block at L6 first. It would happen the battle of ko at A, because the black would be cut at M6. 

That's why I played wedge at L8 without thinking.

The white group easily connected to the group in the lower side...

On the contrary, the black group in the center was in clutch.

Fortunately, the black group escaped death, because of some mistakes of the opponent. And I won.

All moves are here.

I have to think much further.