what kind of speed should i expect when using python to brute force 12 word bip39 seed phrase from word list?
Pure Python implementation should get you maybe like a dozen or two per second, that's all.
it shows around 10000h/s
Sounds like you are doing part of the work only. I was testing the whole thing like getting a list of deterministic keys/addresses and so on.
atleast it found test phrase.
now playing with
https://privatekeys.pw/puzzles/0.2-btc-puzzlehopeless:
Scanning 23,298,085,122,481 Electrum v1 seed combinations using 8 cores...
[5.0s] Checked: 5,108,500 | Speed: 1,021,699/s | Progress: 0.000022%
Don’t waste your time on this it’s an endless attempt with near zero chance of success. Thhe creator hasn’t updated or even signed the puzzle address. It’s not worth 0.2 BTC; you’re better off sticking with the 32 BTC puzzle instead.