刚刚问了儿子，是Milind的Pawn promoted to a Queen 之前，儿子offered a draw.

Also since Milind thought too hard, actually he was lossing on time. They had about 30 moves. Milind used about one minute to make a move. My son was winning on time at first but Milind promoted his pawn first. Then my son thought very hard and was trying to make a draw after seeing Milind promoted his pawn. Then a few moves later, my son was running out of time. Milind didn't checkmate my son. He still had one minute left when the game was over. G30 is too short for a thoughtful game like this. My son did better on G60 games.