[eoinak]

As regards the hand i dont think the turn check is that bad, unless you are the type of player who leads at every flop and who others will call on the flop to bluff the turn.

If you can put him on the ace then the turn check is correct, but once you hit the king on the river I dont believe that you should bet it because in order to get a call you are most likely beat, I am check calling any reasonable bet on the river.

Once you bet the river and are raised my instinct would be that your beat but it depends on your read of the player, your river bet can look like a block after the turn check so he may be raising any ace here