Here is a game from the 1st Dragon Capital Vietnam Chess Open, IM Tu Hoang Thai - GM Nguyen Ngoc Truong Son with full annotations and commentary:
In this game we saw things quickly simplify into a endgame. Usually most players think endgames to be boring and simple to handle but in this case black played a few second best moves in the endgame and eventually fell into a lost position. This is a classic example of how delicate and complex endgames can be, even with just pawns and Kings on the board. After seeing this game you should realize that even GM level players can misplay endgames and that the endgame phase requires intense study to master it.