ICYMI, I enjoyed this little logic brain-twister from Alex Bellos in The Guardian yesterday. So as not to copy it verbatim, I’ll entirely re-word it below if you want to try it out, but then you can go here to see his original statement of it, with the neat solution:
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Alan, Bob, and Carl play checkers among themselves, with the rule that the winner of each game keeps playing, while the loser awaits for another turn to play after each game. When they are done for the day they have each played the following numbers of games:
Alan played 10
Bob played 15
Carl played 17
Question: Who lost the 2nd game?
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