I second almo. With 13 BBs IMHO it’s a shove or fold spot, and that depends entirely on your read of the situation and your table image. I’d have to say in a vacuum with no other reads, a LP open from someone playing 30/23 and being many spots from the money would cause me to shove 13 BBs and A4s from the button, but it’s quite close I think and I also play relatively aggressive and I know I need to work on that.

I ran the numbers. Against a 23% opening range A4s has 46.37% equity. The V opens to 3 BBs, there are 2 BBs already in the pot from the blinds and antes, so you are shoving 13 to win 18. That means this is a profitable shove, even when called. Add in the amount you win without showdown, and I think you have your answer.

It’s a simple math problem. You need 1.15-1 or better to justify the push, as pushing 13 to win 18 gives you 1.15-1 (18 divided by 13). Your equity is 46.37%, which is 1.38-1 (53.63 divided by 46.37). Therefore, it’s a profitable shove, especially because you don’t need that good odds to justify it as the V will fold sometimes, which is obviously great for you.

The line here is somewhere between KTo and QJo. QJo has 41.53% equity which is 1.4-1 and KTo has 43.99% which is 1.27-1. But the bottom line is with A4s, if you’re just going by the math, it’s a clear shove. Whoever was advocating the shove is right in this argument. Obviously there are other factors in play here, but if you play off math which will help you make profitable decisions, you shove.

I recommend downloading Equilab. A quick google search will send you to the download link. You can play around with all sorts of hands against all sorts of ranges. Very useful tool.