First of all good luck to everyone! This is an awesome opportunity, thank you very much PS!
Preflop: standard call. Without knowing more specific details about
the preflop raiser by 3betting we may end up in a bad situation too
often given that Player1 is so loose. Bloated pot without fold equity
and without showdown value out of position it's not the way to make
money. So calling is to me the best option, keeping the pot small, and
still having a lot of implied odds thanks to the maniac.
Flop: We can't fold given the assumptions about Player1.
We have 2574€ on the flop and player6 covers us, 12 SPR. With so much
money behind we are facing huge reverse implied odds. With the dead
money already in the pot I don't mind taking the pot righ now and my
preferred play would be to raise small,to 400-450€. He is capable
of calling worse hands (overcards+backdoor flush draw, gutshots +random)
and we may induce spewy 3bets if he is that crazy with overcards,
65,75,54,89,8T,T9,etc. Against AA we still have 34% equity, and 50% against
overs+FD. So I think it's a good spot to stick it in and try to induce.
If he only calls my small raise I'd value bet 8,7,5,2,6,4 turn and check
other cards to call his river bet 100%.
As played, we can't really give this player a hand range. Probably
his preflop actions are random, 3betting by feeling, and slowplaying
big hands, so there is no bad river. No river would put us below 40%
equity probably so getting 2:1 on a river pot bet we should call 100%.
We don't have to look at our range here to know if we are being
exploited or not, this is not a GTO problem, because he is playing
exploitative and bluffing more than GTO says, we should call with
100% of bluffcatchers.

