vilain is unknown
what is optimal reraising size???
PokerStars No-Limit Hold'em, 8.8 Tournament, 200/400 Blinds 50 Ante (9 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com
saw flop | saw showdown
MP2 (t5763)
MP3 (t23842)
CO (t12656)
Button (t25404)
SB (t12691)
Hero (BB) (t31510)
UTG (t15236)
UTG+1 (t19476)
MP1 (t7699)
Hero's M: 30.01
Preflop: Hero is BB with K
, K
UTG bets t1090, 7 folds, Hero raises to [U]??????, 1 fold
Total pot: t2830
Main pot: t2830 returned to Hero
hero reraises to 3.500 
he raised from utg so he might really have a strong hand.
if he has some kind of weak hand like AJ or AT or 77 he wont call unless you minraise but this minraise is just bullshit.
so raise to 3,5 or a bit less and see if it gets called.
this size is optimal to leave him the option to come over the top with his stack !
he might feel he can push you out with a shove.
if you minraise hes getting wonderfull odds, so if he has an ace he is correct to call a minraise (we dont want him to do something correct)
so 3,5 or 3,4 looks allright to give him the chance to call or to shove.
yea i thought to raise to 3500-3800, for same arguments, but i some how end up to raising to 4800 which is way too big imo,very bad, couse i thougt that if he has good hand he will call or shove and if he call I can put him all in on flop, bad play what can i do 
