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We want to have 7 pieces by only cutting our tasty cake with three straight and vertical cuts (maybe done with a katana :D),

I dont require to have all the pieces of the same size.

Sorry if it's repeated, but I couldnt find it here.

Very similar to another puzzle, but in this case we can not rely on the fact of making 3D cuts. All the cuts must be vertical.

THANKS TO @n00b, "Apparently there is a name for this type of puzzle; en.wikipedia.org/wiki/Lazy_caterer's_sequence"

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  • $\begingroup$ Given the answer is fairly easy, it could be a new puzzle to figure out of there is a way to make 7 cuts EXACTLY the same size, if you are not allowed to mesure distances or angles (well, other then using a drawing compass). Not sure if it has an answer though. $\endgroup$ – Tim Couwelier May 29 '15 at 10:41
  • $\begingroup$ David, remember to choose the Best Answer when you think a question you'd made had been answered. You can do that by clicking in the tick nexto to the answer. Thanks. $\endgroup$ – Masclins May 29 '15 at 10:56
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    $\begingroup$ Apparently there is a name for this type of puzzle; en.wikipedia.org/wiki/Lazy_caterer's_sequence $\endgroup$ – n00b May 29 '15 at 13:53
  • $\begingroup$ @AlbertMasclans Sorry, I pressed but seems it didnt accept the answer. $\endgroup$ – David Sánchez May 29 '15 at 16:31
  • $\begingroup$ @n00b WOW!!!! wanted to +1 you but I couldnt!! Really good appreciation, will add it in the problem. $\endgroup$ – David Sánchez May 29 '15 at 16:33
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That's some tasty cake right here. I want the middle piece.

Tasty

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  • $\begingroup$ not even 5 min hahahaha :(. Congrats $\endgroup$ – David Sánchez May 29 '15 at 10:00
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    $\begingroup$ You want that tiny piece in the middle? Okay, I'll take the larger ones from the side :) $\endgroup$ – Mathias711 May 29 '15 at 10:11
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Cut the cake into 4 pieces with two perpendicular cuts, meeting at the center. Move the slices so they line up, then slice once more down the middle. Eat one piece and now you have 7 pieces.

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