It's the little things

Here is another interesting game from the 2019 Gibraltar Masters. Lev Aronian beat Nigel Short in a game where Aronian looked to have an increasing advantage throughout. After the game Short commented that he could have resigned around move 25, and he couldn't understand what he did wrong.
I can sympathise with his predicament, as I often get lost positions without realising it until far too late. In Short's case it does become clear that his queenside pawns are the problem, but what he should have done is a more difficult question the answer.


Short,Nigel D (2648) - Aronian,Levon (2767) [B90]
Gibraltar Masters 2019 Caleta ENG (6.2), 27.01.2019