Tony McCoy will ride John Kiely's Hennessy Gold Cup winner Carlingford Lough in what will be his final Gold Cup on Friday after all 18 horses stood their ground following the final declaration stage for the race.
McCoy and Carlingford Lough feature in an Irish challenge that also includes last year's winner Lord Windermere, trained by Jim Culloty, the Willie Mullins-trained Djakadam and Noel Meade's Road To Riches.
Silviniaco Conti is the ante-post favourite for Paul Nicholls and Noel Fehily as he bids to win the blue riband at the third attempt.
Jonjo O'Neill's dual Festival winner Holywell, Oliver Sherwood's Many Clouds and Mark Bradstock's novice Coneygree all have chances in an open renewal.
Gordon Elliott has declared Don Cossack, but he is expected to line up as favourite for the Ryanair Chase on Thursday.