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Diabolic Gates (Hard)

A small difficult puzzle for hardcore portal players.

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~~ Challenge ~~

The solution of this puzzle will be published on 1 January 2014 (unless someone succeeds in solving it before publication) to give the time to experienced players to find the solution.
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While waiting for the solution in video, here are some information:

This is a very hard puzzle, but it is solvable without using any hacks or glitches (e.g., laser mirror). That’s only of the logic, the solution is 100% conventional and it is very easy to execute when you know it.

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But allow me to be more precise, the solution of this puzzle does NOT contain the following things:

- Difficult laser which passes in the raz of a wall or a receptor.
- No cube, portal or laser is placed in an uncomfortable position.
- Laser which passes twice by the same portal (laser mirror).
- Laser plan ultra complicated or totally untraceable.
- Vertical laser or of fault.
- Destroy or move a cube through a fizzler.
- Move with a cube while aiming at a receptor to cross a fizzler.
- Drop a cube over the river.
- Jump over the river without having activated the bridge.
- No other unconventional action is used.
- No other cheating.
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This map is the main puzzle of the collection "Diabolic Gates", it was created the first one. Other map "Diabolic Gates (Medium)" is there to help you to get ready to solve this one.
If you wonder why there is mud in front of the laser transmitter, here is why: http://youtu.be/KD2keysssxk

Inspired from "Seven Gates" by Jonatan Rydh : https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=765110932

***Links***

- Collection ''Diabolic Gates'' : https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=202107239
- Diabolic Gates (Medium) : https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=202087902

Solution : http://youtu.be/Auc0VuLzDMU