Axs vs unknown
 

PokerStars 2/4 Hold'em (6 handed) converter

Preflop: Hero is Button with 8[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises</font>, SB calls, BB calls.

Flop: (6 SB) A[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">BB bets</font>, <font color="#CC3333">Hero raises</font>, SB folds, BB calls.

Turn: (5 BB) 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets</font>, BB folds.

Final Pot: 6 BB

Re: Axs vs unknown
 

I like your raise here because you want to push SB out of the pot. If this was HU, I'd call down till the river and pop him there.