Life In 19x19

Thank you everyone for your insights. I need to post more to improve my game!

from the looks of the position you are missing bigger picture.
staying alive is important but that shape is called "better not alive shape"
you can not expect to win game giving white that much profit.

invasion need prep and plan.
professional's invasion appears to throw in randomly but they are ...

Here is the full sgf (game is not over yet so please no indication on the last part, even if it is nearly over):
(;FF[4]CA[UTF-8]AP[anDGS:v58]
KM[-3]PB[Maex (maex)]PW[Pierre M (Oripy)]BR[15k]WR[14k]
DT[2013-01-19,2013-01-30]RU[Japanese]
SO[http://www.dragongoserver.net/game.php?gid=785577]
GC[Game ...

Hello everyone,

One of my last game on DGS, my opponent (Black) invaded my large moyo doing some shoulder hit that I'm sure I should have been able to punish more severly, but he ended up living. My strong influence on the outside may counterbalance that unfortunate ending but at one point I was ...

Hi everyone,

It's my first post on this forum.

Yesterday I ran into a strange answer to a basic move and didn't know how to react. In the end I felt that I missed an opportunity.

$$W
$$ -------------------
$$ | . . . . . . . . .
$$ | . . . 3 a . . . .
$$ | . . . b 2 . . . .
$$ | . . 1 ...