flopped a full house set a perfect trap and lost
 

$50 sitngo on UB blinds 30\60 player in EP raises to 100 everyone folds to me 1 off the button. I raise it to 210 with pct 10's he calls FLOP: K10K he checks i bet min, turn 3 he checks i bet min , he raises to 450 i go all in , he calls
he shows KJ ...................river his only out J

A K would have given him quads and if the board paired the turn and river, he would have beat you to. So, after the all in, he actually had 8 outs. A bad beat, yes, but not as bad as it seems.

Hmm, I count 7 outs, three 3s, three Js and 1 K.

Indeed. Call it a typo. Same as the "to." :D