Villain ios 25/22/2 over 79 hands.

What do we do here?

PokerStars - $0.10 NL FAST (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

BTN: 407.1 BB
Hero (SB): 106 BB
BB: 100 BB
UTG: 135.6 BB
MP: 468.1 BB
CO: 100 BB

Hero posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has A K

fold, MP raises to 2 BB, fold, fold, Hero raises to 8 BB, fold, MP calls 6 BB

Flop: (17 BB, 2 players) K 2 6
Hero checks, MP bets 4.1 BB, Hero raises to 14 BB, MP calls 9.9 BB

Turn: (45 BB, 2 players) T
Hero bets 30 BB, MP calls 30 BB

River: (105 BB, 2 players) 7
[color=red]Hero?

As played, check call. I'm not sure there are many hands you will get value from by betting, KQ, KJ, maybe K9. If villain only calls the suited varieties, that's only 6 combos.

If you check, you won't get value from them I don't think, you'll lose to the same hands you'd have lost to anyway, but you'll get plenty of value from bluffs.

Definitely just range bet flop, check raising way over complicated things

what bluffs does villain have when the spade hits? once we get to the river this way our choices are to jam or c/f.

but yes, range bet flop, and if for some reason you do check flop you want to c/c not c/r

The people above are correct in saying that you probably shouldn't have a checking range on the flop.

On the river I still think you should jam even when the flush comes in because the SPR is 0.5, meaning Villain is still forced to call a bunch of worse hands. In general when the SPR is low on the river you should be jamming pretty thin for value even on boards that look scary because Villain will be forced to call with a wide range and they can't punish you for going too thin by raising.

Also, if your plan is to check river planning on check-calling, why not just jam yourself? In both scenarios you get stacked by his two-pair+ anyway, but at least if you jave he's forced to call his KQ/KJ

Good point there aren't (m)any natural bluffs on this board. I reckon some villains will find enough bluffs to make a check/call more profitable than a jam, but I think you're right, vast majority of player pool won't.