Hull KR and Leigh Leopards are in a battle to secure a semi-final next week against either Wigan Warriors or Catalans Dragons.
It has been a tight and competitive game between two teams who could only be separated by points difference in the final league table.
But there could be more between the sides but for a controversial call.
This was always going to be a great game as a rematch of the first Challenge Cup Final without Leeds Rhinos, Wigan Warriors, Warrington Wolves and St Helens since 1986.
Hull KR had secured home advantage in the game last week but, despite trying to speed the game up, had to battle through a number of errors.
They conceded the opening points after a strange penalty against Matt Parcell. He was in front of the play the ball but got involved in the play and was subsequently offside.
He was penalised and Ben Reynolds nailed the penalty to give the Leopards the advantage early on.
They had a few chances to build pressure especially after a huge hit by Lachlan Lam which saw the ball knocked free but on the next set the Leopards squandered the opportunity with James Batchelor mopping up a kick.
Hull KR slowly but surely battled back into the game ironically by speeding the game up around the ruck and on the back of inroads created by dummy half runs, Elliot Minchella won a penalty due to a high tackle from Joe Wardle.
This time Brad Schneider nailed a penalty to make it 2-2. He looked destined to score the opener after some great interplay between Jack Walker and Matt Parcell – two Grand Final winners in 2017 with Leeds Rhinos – saw them carve open the Leopards with a series of offloads.
But the last pass to Schneider was deemed forward denting an attacking opportunity that most days would be described as a certain try but Ed Chamberlain came across to tackle him after the whistle was blown.
The crowd were not happy with the decision from Jack Smith and footage of Willie Peters showed that he was dumbfounded by the call slamming his hand against his coach’s box window.