Box Your Mind

Marine Memory is a recurring mental challenge on Survivor.

rules
Survivors are all given a series of symbols or items. It is their task to memorize the symbols/items and recite them at their stations. The first person to correctly recite all their symbols wins. (Or scores a point for their tribe in One World)

history
The challenge debuted in Africa, where the final 9 castaways had 30 seconds to look at a board of 9 items. They would then run out and collect the items and correctly place them. Ethan ended up winning.

In Palau, the final 5 battled it out by traversing a complicated obstacle course. Tom won the challenge.

In Panama, the powerful Casaya alliance chose to sit out and eat, with only Aras competing against Sally and Terry. For the third consecutive time, Terry won immunity.

In One World,  Salani won in a clean sweep against their male rivals Manono, winning reward and their first challenge of the season.