Coming soon!
https://www.istanbulgo.org/turnuvalar/20-uluslararasi-istanbul-go-turnuvasi/
Found it in english!
https://www.istanbulgo.org/en/20th-international-istanbul-go-tournament/
The 20th Edition of the International Istanbul Go Tournament will be held free of charge
Nice feature!
(Thanks to @_Sofiam for relaying me the info)