[whimsicalism]

> * December 2016 Istanbul car bombing / suicide bombing near a football stadium, killing 44 people

TAK != PKK, TAK claimed responsibility. 39 of those killed were police officers. Turkish military also kills civilians while targeting opposing militia groups.

> * June 2014 Istanbul bombing / killing 6 civilians

Link? Did this happen?

> March 2016 Ankara car bombing

TAK not PKK, again.

> * June 2006 Manavgat

Yet again, TAK.

> https://en.wikipedia.org/wiki/October_2016_Istanbul_bombing

Not intentional targeting civilians, accidental premature explosion of bomb. Only one of the attacks you've mentioned that was by the actual PKK and actually killed civilians. (e: actually no civilians killed)

[DoItToMe81]

To his defence, the TAK is often claimed to be a militant wing of the PKK, that handles affairs that might damage the reputation of the main organization. Like how the Provisional IRA formed fake splinter groups to pin sectarian counterattacks on.