This game is from the 2nd DATCC Weekender taken from Round 2. In the first round, Sahir Sarifdin just beat higher rated Nor Ilhamuddin.
Sahir faces off against Abdul Aziz's super solid Caro Kann and goes for the endgame early by trading off Queens in the opening. Aziz had pressure on the h-file which lasted until towards the end of the game. Black eventually won a pawn which was decisive.