You have 9 horses and you have to select fastest 3. You can make a race of 3 horses in one time. So how many time you have to make a race? thanks :-)

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I think I've found a way to do in at most six races. I have not totally convinced myself that it cannot be done with fewer, but I think the logic below proves all possible cases can be done in at most 6 races. Horses will be names H1 through … Read More

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I admit the problem had me bugged (ugh) but I am definitely gnat giving up (sorry). Read More

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