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Assume that on a chessboard, the King piece is on tile E1 (bottom row, 5 columns across). It can move straight forward, forward diagonally to the left, or forward diagonally to the right on each move. How many different paths can it take to get to tile E8 (top row, five columns across) in exactly 7 moves?
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Trading Analyst

Interviewed at Virtu Financial

4
Aug 18, 2011

Assume that on a chessboard, the King piece is on tile E1 (bottom row, 5 columns across). It can move straight forward, forward diagonally to the left, or forward diagonally to the right on each move. How many different paths can it take to get to tile E8 (top row, five columns across) in exactly 7 moves?

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