Leela on play.lczero.org is much weaker even on "hard" setting. First, it uses latest network (as opposed to the strongest network that @LeelaChess uses). Second, on "hard" settings play.lczero.org ony thinks for 2000 nodes per move, which is equivalent to ~0.1 seconds (and even less than that on "normal" or "easy"), while @LeelaChess uses more time.
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