Logic puzzle for expert players. Thanks to Jonatan for constructing the map after my specifications.

v1.1 - Fixed portal bumping exploit.

File Name: sp_gridlock_v1.1.zip
File Size: 2.33 MiB
Click here to download Gridlock

Awesome puzzle! Definitely worth a play.
This was really fun, had me thinking for a good while but never felt like I was hopelessly stuck. The set-up and pacing made it feel like you're making progress and figuring things out as you experiment. The best part is that the solution really doesn't require any weird or ridiculous technique, only clever thinking. Anyone should be able to complete once they figure it out.

I guess this part goes to Jonatan, the only sub/par part of the map is the look. It doesn't look bad at all, but nothing sticks out about it either. It has its functionality - all the textures are well-aligned, which shows the author cares and is aware of what he is doing, and the fizzlers are made correctly (although I think the bottom was cut off by the floor). But they are mostly repetetive and lighting is a bit bland. Again, this can be overlooked, but the effort really shows when the time is taken to work on great visuals, and can help to immerse the player.

Hi, looks like a cool map, but I couldn't resist using a portal trick on it.

The portal bump trick that is, where you can bump a portal across a barrier.
You may want to correct this trick, I was able to avoid all the grids, get to the button, get the boxes, and placed, all without cheats.
Here is what I am talking about:
Portal bump-floor
Portal bump-wall


I was even able to portal bump on the emancipation grid generators, which that I was surprised at, because that is a big jump space. Normally portal bumping only works on very thin spaces, not as thick as the grid generator.

Still cool map, and Continue testing. [GLaDOS]

Thanks for letting me know of this exploit, wolf bytes. It sure made the map a little easy! I will be uploading a corrected version soon.

Random, may I ask how you solved it? I don't know of any alternate solutions apart from the intended, but I could be mistaken.

Random, you were right, the textures on the fizzlers were misaligned. Fixed now in latest version. Also replaced the lights and hopefully patched the portal bumping exploit.

johannes wrote:
Random, may I ask how you solved it? I don't know of any alternate solutions apart from the intended, but I could be mistaken.

Did you get my message? I didn't know if you wanted me to post it here or not.

Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth. - Arthur Conan Doyle

That quote pretty muchs sums up how I solved this puzzle. I tried everything until I ran out of things that didn't work.

Here's a tip for those who haven't given up, think vertically.

It's a 5/5 for the puzzle, but just 3/5 on looks and feel (some state dependent quotes from GlaDos would spice it up), so I call it a 4.

Random wrote:
Did you get my message? I didn't know if you wanted me to post it here or not.

I did get your video, yes. Thanks! Feel free to post it here if you like.

I did have another solution in mind when designing the puzzle, using another kind of key move. I'd say your way is a bit more elegant, though, so I'm glad it's there as well. Jonatan made a video of my intended way. I guess I'll poke him to upload it.

This is my solution. I apologize in advance for not editing out more of the "think time" in this one.
http://youtu.be/jMucdsCJxOo
I suspect a more elegant solution is possible, but this is the best my poor, old, tired brain could manage.

Nice and clean solution there KennKong. Here is the original intended solution that Johannes thought out for us:

HYfX_KrcsPs

jonatan wrote:
Here is the original intended solution that Johannes thought out for us:

I was going to suggest moving the button in 3 to the other side, because I was getting tired of walking around that corner. One of these days I will learn to look at obstacles as opportunities!

KennKong this is one of the most impressive videos Ive seen in Portal2 (second other is Valhiel in Beamtrap). This unintended solution is for me the true real one for that map - clean and brilliant. Respect man. I tried many things in that one ||including vertical stuff||but couldnt pass (never thought it`s possible with one cube in last area). That happend for me only for the second time. The puzzle is epic. One of the best I played. Congratulations Johannes

I applaude the imagination and cleverness of this puzzle, but please, please, in the name of all that is holy, take away the word 'logic' from the presentation of the puzzle. Because of it I was stuck for hours on end because I was persuaded there WAS a purely logical solution, i.e. just finding the right combination of moving the cubes and portals, like solving a rubix cube. I did not even consider the possibility of trying special moves until I grew unbearably frustrated. Instead, if any hint should be given, the classic 'think outside the box' fits perfectly here. There's nothing wrong with misleading the player within the rules of the game, but comments on the map are typically considered as an 'off-area' (well at least I did). Not that I am suggesting this was intended...

In that respect, I agree that Kennkong's solution at least comes much closer to a purely logical solution.

Happy to see that an underrated map got its due spotlight credit...