OGS: Gustin (10k) - Styrbjörn(7k)

Player name: 
Gustin
Player rank: 
10k
Player color: 
White
Opponent name: 
Styrbjörn
Opponent rank: 
7k
Review status: 
reviewed
Reviewer: 
EdIV
Review rating: 
Review instructions: 

Hi I would like to know how better I can attack the cut stone, move 51, I think one of my problems is that I always catch myself thinking in kill, so I want if possible some guide on that, I want to suppress my killer instincts haha. 

Game summary: 

White attacked Black's cutting stones severly trying to kill them, but since he did not see the cut, his stones became weak and died.

Commented sgf file : 
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Sgf file: 
File Gustin-Styrbjörn.sgf Fullscreen
Request uploaded by: 
Felipe