Hand from the £550 GUKPT sidey tonight.
Level 1, 25/50, assume effective starting stacks of 15k.
I raise mid position 150, next to act (hijack) calls, CO 3bets to 550, we both call (pot 1725).
Flop

Me and hijack check to pf 3bettor, who checks.
Turn

I bet something like 1150, hijack folds, CO has a think for about 40 seconds, then calls (pot 4025)
River

I bet 2600, CO thinks for about a minute, then raises to 8k.
CO's range here? It's level 1, he's unknown, but not been super active and has done nothing out of line. He does have a foreign accent that I haven't consciously placed yet.