It occurred to me that muscling that heavy pantry upstairs was a bit like playing chess. I had to think through most of the moves ahead so that each part of the process would bring success to the next. I played chess as a kid and now, just like a kid, I sometimes give up thinking too many moves ahead and leave a bit of the game up to luck.
So, there I was, stuck half way up the stairs, realizing that I might have to lose most of the ground I'd made. I hadn't taken the carpet at the top into consideration. But I was lucky. I rested where I was and gave it a bit of thought and tried an old move in a new way. Sure enough, a bit of luck brought success.