Lichess, you can install for variant games "Time control "Unlimitet" on one move for "Stockfish AI level 8 (2500)" though at least a minimum 11 seconds to compute move??!
---------- Forwarded message ----------
From: Daylen Yang <services@daylenyang.com>
Date: Thu, 11 Feb 2016 07:39:30 -0800
Subject: Re: Stockfish AI level 8 (2500)
To: *** *** <******@gmail.com>
It looks like they set Stockfish to move instantly. Also, skill level 8 is using a handicap mode. So of course in this situation Stockfish would play weaker.
Daylen
Sent from my iPhone
---------- Forwarded message ----------
From: Daylen Yang <services@daylenyang.com>
Date: Thu, 11 Feb 2016 07:39:30 -0800
Subject: Re: Stockfish AI level 8 (2500)
To: *** *** <******@gmail.com>
It looks like they set Stockfish to move instantly. Also, skill level 8 is using a handicap mode. So of course in this situation Stockfish would play weaker.
Daylen
Sent from my iPhone