Closing moves


I saw one of the games you've drawn in a winning position, and it was a draw due to stalemate.
First you need to understand what is stalemate.
Stalemate is when the opponent doesn't have any legal moves and his king is not in check.
As a contrast checkmate is when the opponent doesn't have any legal moves and his king is in check.
So you need to be aware if the opponent has a move when he has only his king left or only a king and some blocked pawns. So either avoid taking everything from him without a checkmate or at least keep giving checks until a checkmate to not allow stalemate.