I've been running puzzle 71 with keyhunt-cuda for 3 months and it feels completely hopeless.

I run 4x3080ti+ 4x3090 kangoroo puzzle 135....
3x 3080ti vanity bitcrack all random puzzle 71
2x4080 super for prefix experiment 😅
Already 4 month no luck 😅. Hope good luck next month.
I am also running 135 puzzles, and using bsgs to run some old lost mining addresses. I have been running for more than half a year in total, but I haven't earned a penny. Haha, I wish you good luck.