"The three castaways each stack domino style wooden blocks on their separate raised courses. Once all of the blocks are properly stacked on the course, the castaway can then start a chain reaction by releasing a ball which travels down the course to the end and smashes a tile. First castaway to break their tile wins." ~ @SurvivorWiki
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Gervase, Caleb, and Rachel are at Redemption Island.
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Marissa does not switch places with Gervase.
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Colton does not switch places with Caleb.
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Tyson does not switch places with Rachel.
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Gervase, Caleb, and Rachel compete.
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Gervase finishes first and advances.
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Rachel finishes runner up and advances.
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Caleb is eliminated from the game.
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Gervase gives a clue to the hidden immunity idol to Katie.
Proceed to the immunity challenge.