Timeline for Is it Always Possible? Colour Flipping
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Nov 1, 2014 at 4:47 | comment | added | ruakh | @frodoskywalker: Good point! A nitpick: the goal is to get the whole thing green, not red, so you need to do the exact opposite of what you said. | |
| Oct 31, 2014 at 12:44 | history | edited | EagleV_Attnam | CC BY-SA 3.0 |
deleted 112 characters in body
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| Oct 31, 2014 at 12:40 | vote | accept | warspyking | ||
| Oct 31, 2014 at 12:37 | comment | added | warspyking | I fixed the mistake you noted. | |
| Oct 31, 2014 at 9:25 | comment | added | frodoskywalker | If you want an efficient solution, note that the order in which you press buttons doesn't matter and pressing a button twice is equivalent to not pressing it at all, so you press each button a number of times equal to the number of greens in its rows and columns (counting itself, but only once) mod 2. This gives a maximum of 16 presses to solve. | |
| Oct 31, 2014 at 9:05 | history | edited | EagleV_Attnam | CC BY-SA 3.0 |
Added example
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| Oct 31, 2014 at 8:45 | history | answered | EagleV_Attnam | CC BY-SA 3.0 |