Henry Ernest Dudeney/Puzzles and Curious Problems/264 - The Fly's Tour/Solution

Puzzles and Curious Problems by Henry Ernest Dudeney: $264$

The Fly's Tour

A fly pitched on the square in the top left-hand corner of a chessboard,

and then proceeded to visit every white square.

He did this without ever entering a black square or ever passing through the same corner more than once.

Can you show his route?

It can be done in seventeen continuous straight courses.

Solution

Sources

• 1932: Henry Ernest Dudeney: Puzzles and Curious Problems ... (previous) ... (next): Solution: $264$. -- The Fly's Tour
• 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Answers: $422$. The Fly's Tour