This twist was based on the duels from the sixth Swedish season and the Island of the Dead twist from the first Israeli season, and later appeared in the American version as Redemption Island. At the merge, the winner of the duel returned to the game and the twist was retired. Isla Purgatoryo: A secluded area with minimal supplies where voted out contestants competed against each other in duels to remain in the game.Pre-merge individual immunity: Before the merge, the tribe that won the immunity challenge had the power to give one member from the losing tribe immunity at the next Tribal Council.The season aired on GMA Network five times a week from August 17, 2009, until the live finale on November 13, 2009, when Amanda Coolley van Cooll was named the winner over Justine Ferrer and Jef Gaitan by a jury vote of 4–3–0, earning the ₱3,000,000 and the title of Pinoy Sole Survivor. The season was filmed on the island of Peleliu in Palau. Survivor Philippines: Palau is the second season of the Philippine version of the reality television series Survivor.