# Chessboard Conundrum

Logic Level 3

Consider a standard $$8\times 8$$ chessboard as shown. How many 7-move routes, involving black squares only, take you from the black squares on the top edge of the board to the black squares on the bottom edge of the board?

Note: you can start in any of the black squares in the top row and end in any of the black squares in the bottom row.

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