Timeline for Math puzzles for dinner
Current License: CC BY-SA 2.5
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 23, 2019 at 2:07 | comment | added | Elliot Glazer | @AntonGeraschenko Even in the everybody right/wrong variant, there is a strategy for any cardinality of colors. | |
| Jun 25, 2010 at 14:42 | comment | added | Michael Burge | This is probably my favorite puzzle. Anybody who hasn't seen this before should really work it out; it's a great one. | |
| Jun 24, 2010 at 19:13 | comment | added | Nate Eldredge | This is one of my favorites. I've always liked the mental image of the players sitting around beforehand and nterrvat ba n pubvpr shapgvba. | |
| Jun 24, 2010 at 18:15 | comment | added | Yaakov Baruch | As closing the question is being debated, I would point to this particular answer as a factor against it. | |
| Jun 24, 2010 at 15:07 | comment | added | Tony Huynh | @Andrea: The name of the article is A Peculiar Connection Between the Axiom of Choice and Predicting the Future by Hardin and Taylor. You can access the article by clicking on the link from Francois G. Dorais' answer to this question | |
| Jun 24, 2010 at 13:29 | comment | added | Andrea Ferretti | The solution to this problem can be turned into a strategy to predict the future (!?). It was nicely explained in a nice article on the American Mathematical Monthly, of which I forgot the title. Sadly the strategy is not effective... | |
| Jun 24, 2010 at 6:18 | comment | added | Pietro Majer | ...and in fact it's sufficient that everybody can see all but finitely many hats. | |
| Jun 24, 2010 at 5:27 | comment | added | Charles Chen | There's a solution to this with countably many people and uncountably many possible hat colors. | |
| Jun 24, 2010 at 5:15 | comment | added | Anton Geraschenko | @Qiaochu: yes, that's true. A variant where it's important to have two colors: you win if everybody is right or everybody is wrong. | |
| Jun 24, 2010 at 5:12 | comment | added | Qiaochu Yuan | As I recall, the number of hat colors can be arbitrary...? I guess it's better to state this version because if it sounds too impossible people will get suspicious and might catch on faster. | |
| Jun 24, 2010 at 5:07 | history | answered | Anton Geraschenko | CC BY-SA 2.5 |