Remove base, reduce eyespace (to a Bulky 5), play the vital point
It was a back-and-forth affair with eric128 until I set my sights on the group in the lower left:
It looks like a fairly large group. Didnt look possible to kill. But the clossi approach has a clear set of steps to deal with a weak group – remove base (that’s why I played C8) reduce eye space (that’s why I played E9 and R9). And then play the vital point (I played the vital point of a bulky five).
In this game, i kept chasing my opponent’s large group, hungry for the kill. It paid off. I’m not good at judging when I can quit attacking and just consolidate a win.