Saturday’s narrow 1-0 defeat at the hands of Middlesbrough left the Tigers five points shy of the top six in ninth, although sixth-placed Bristol City will have the opportunity to extend that lead to eight points before Nigel Adkins’ men are next in action away at West Brom on Good Friday.
Whatever happens with the Robins’ game in-hand, Lichaj was quick to stress he and his team-mates will fight to the finish.
“I’ve looked at the table and we’re five points off it,” said Lichaj. “Bristol City have a game in hand but we’re still in it.
“We’ll keep fighting. We’ve still got to play Bristol City but there are a few games in between that and we’ve got to keep our heads held high.
“I would say we’re going to need four wins from the last four games now. From the position we were in five months ago, it’s nice to be in a position where we could still get in the play-offs.
“The fans have seen the effort we gave and the fact we left everything out there on the pitch. They appreciate that. We want to do as well as we can for the club.
“Hopefully that means getting in the play-offs, but if it’s not we’ll pick ourselves up and go again next season.”
Britt Assombalonga’s first-half strike proved decisive at the Riverside Stadium, with the hosts surviving a second-half onslaught from the Tigers to claim all three points.
Reflecting on the defeat, Lichaj added: “On another day we probably score three or four and end up winning but we ended up losing.
“It’s one of those games where everyone threw everything at it and you could see that in the reactions at the end. Nobody had anything left in the tank.
“In the second half we had so many chances and on another day we’re getting three points out of the game, but it just didn’t happen for us.”