The two sets up nominees each take turns making a move on a large chessboard. If they are unable to make a move, they are eliminated. The last pair remaining wins the Battle of the Block, giving them safety for the week and dethroning the HOH that nominated them.
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Derrick and Christine win Battle of the Block!
They are now safe for the week.
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Devin is dethroned as HoH.
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Paola remains HoH.
Proceed.