"The castaways would bounce four blocks along a rope tunnel to retrieve them. The blocks would then need to be stacked so that one color didn't show more than once on each column. The first two castaways to solve their puzzle would remain in the game." ~ @SurvivorWiki
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Marissa, Katie, and John are at Redemption Island.
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Gervase does not switch places with Marissa.
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Tina does not switch places with Katie.
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Marissa, Katie, and John compete.
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Katie finishes first and advances.
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John finishes runner up and advances.
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Marissa is eliminated from the game.
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Katie gives a clue to the hidden immunity idol to Rachel.
Proceed to the immunity challenge.