The Reds stand two points clear of Manchester City - albeit having played a game more - after taking a club-record 83 points from 33 games.
"Liverpool are desperate to be champions," Gundogan said. "They want to win the Premier League more than the Champions League.
"But everything is in our hands. I think we have played the better football. We were seven points behind them and then we went ahead of them.
"If we win our game in hand, we will go past them and be the leaders. We shouldn't forget that.
"I think they have been very lucky in the past one or two months. They have scored a lot of late goals recently.
"Everything is in our hands. If we win the last six games then we will be champions."