The Queen Mother Champion Chase hero has not run since winning at Sandown in April last year, having his plans for this season disrupted by a setback.
Moore said: “He’s not as fit as I’d like at this stage.”
Asked if he was confident the nine-year-old was as good as ever, Moore said: “I couldn’t answer that question truthfully now, but I’d be very disappointed if he wasn’t and very surprised if he wasn’t.”
Another two-mile star, Sprinter Sacre, made his return from a long absence at Ascot over the weekend, finishing second to Dodging Bullets.
Assessing the performance, Moore said: “He didn’t fill me with any dread, obviously there’s issues going on with the horse but he looked extremely fit the other day and I don’t think he blew up, he was probably race-rusty. You can’t leave Dodging Bullets out of it (Champion Chase equation).”