Upon Reflection

by Martin Ashwood-Smith and George Barany

This "Friday-level" puzzle (two versions) was posted coincident to the publication of another puzzle in the New York Times. It indicates how high the bar has been raised for acceptance of this class of puzzles. All of these puzzles are dedicated to Dr. Michael J. Ashwood-Smith, Professor Emeritus of  Biology, University of Victoria, BC, Canada, on the occasion of his 83rd birthday.

Click here to view or download the "main" puzzle in PDF format; here to download it as a puz file; here to download it as an ipuz file [requires the free Puzzazz app to solve]; here to solve the puzzle interactively (thanks to Jim Horne); here for the solution. Click here for an alternate version of the puzzle, here for the puz file, here to download it as an ipuz file, here for interactive play, and here for the solution. We thank Martin Herbach for useful advice and beta testing during the development of these puzzles.

If you want to tell others about this particular page, refer them to

More puzzles here (all).

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