[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: The Einstein Puzzle
On Mon, 15 Jan 2018 13:59:59 +0000, "Costello, Roger L." <costello@mitre.org> wrote: | The Einstein Puzzle Gosh, this brought back memories! I saw this in the Reader's Digest a _very_ long time ago, but some details were different. In particular, there were two questions: 1. Who drinks water? 2. Who owns the zebra? A zebra is an outlandish pet, which is basically why this puzzle stuck in my memory. And sure enough, it's in Wikipedia (which, if accurate, shows further differences in detail): https://en.wikipedia.org/wiki/Zebra_Puzzle [ObSchema: what if a set of constraints have _no_ "solution"? Can we detect this infelicity in advance?]
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