AHC: Most European-Controlled China Possible

China was historically at the mercy of the Europeans several times, but managed to survive, ish.

Using any POD after 1837, what would be the best ways to get China under the greatest possible amount of European control?
 
The most obvious would be the Russian occupation of Mongolia and Manchuria.
You can toss in Tibet throwing itself at the Raj on top of this while Russia grabs East Turkestan.

Still, the historic/cultural/demographic core of China remains. You could get the Taiping rebellion getting even less fun and sucking in opportunists followed by actual government trying to get them under control.
 
Internal problems within Japan might limit their ability to colonize China, allowing Europeans to take their OTL concessions. The British, French or Germans could take Taiwan, for instance.
 
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