The stakes are higher, so I don't know if there are more stuff going on the players' analysis that I know of, but this bluff on 4 to a flush seems unintuitive. And this is why I play 2nl and they play 500z HU like it is pennies.
A fact that someone is playing NLHE 500 doesn’t mean the players is a professional. There are plenty of millionaires who just want to show their friends they are playing high stakes and doing fancy moves.
It all starts with a polarized 3-bet. I’m afraid there is no need for it, specially when it’s a heads-up match.
Second, after “sensadir” polarized preflop, it continues to polarize postflop having no diamond in its range. It also polarized on the turn, and the river bet wouldn’t achieve many folds as well, if it wanted to bluff it could’ve bet more.
“sensadir” elects to bluff a busted straight draw betting thinner on the river on a complicated board having 4 diamonds: it simply have given plenty of odds
for the player in position to call with a wider range, even ace high.
I never played this limit, but I don’t think it’s optimal to bet so little on the river. If “sensadir” desired more fold equity
, for its bluff to pass it should have bet much more.