Leela Chess Zero - UCI engine What is current use status of Leela for practical player? Is it already working well as UCI? Could anybody give some insight on strength with various thinking times, especially in analysis mode? As leela uses different thinking process, I must ask also for multiPV search. Is the speed down of many PVs still as devastating as with other engines?

I have desktop with 6x3.2Ghz CPU. As graphics card like RTX2080ti is 'just' around 1300€ with good use outside of chess too, I wonder, what performance change would it mean.

With mentioned hardware, how long would approximately leela have to think to compare to Stockfish?

Stockfish 0.1s
Stockfish 1s
Stockfish 10s
Stockfish 1min
Stockfish 10min
Stockfish 1hour
Lc0 is fully compatible with UCI. It's strength depends a ton on what hardware it's being run on. On any hardware (tested down to Raspberry Pi), it will be superhuman (over 2900 elo). With a RTX 2060 ($200ish) it should be roughly even with SF on 8 cores (although you may need to mess with settings a bit to get it there). A 2080ti puts decently (20 or so elo) ahead of 24 cores of SF. The current MultiPV mode is only a display tweak. It isn't weaker, but it doesn't give as good analysis of the non-primary lines. If you have more questions, the best place to ask is probably the Lc0 discord.