I played a oppontent who seemed to be closer to tight than loose. He had played 600 games 0% ROI, total profit 360 at average stake 7 dollars. This game was played at 20 dollars. He had limped one time earlier in the game with 78o. I had raised something like 14/15 of my buttons, I folded to most of his raises pre, and didn´t make any 3-bets. We´re down to 19 bb, he limps, I have 55. Check, shove or a raise? And if i raise, can I raise fold to a shove? I guess shoving is a better option than raise calling. And if we raise small, how big?I raised 4x to, because i expeced to have more fold equety than 3xing. However it sucks when he´s shoving, which he did and i folded. I guess his range mostly is qq+, but not sure.