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Tetris freeBlock
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data Block = Block (Int,Int)
deriving (Eq,Show)
data Board = Board [Block]
deriving (Eq,Show)
-- Is a certain block free on the board
-- This means that the block should not be an element of the board
-- (* Difficulty 1 *)
freeBlock :: Board -> Block -> Bool
freeBlock (Board l) b = undefined
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