Cheers, kimist108! Glad you stuck with it. Thanks!

Loved the challenge! Going back and working on maps I couldn't complete when first tried many years ago.

Mr Fab did a playthrough: https://youtu.be/m55LjOL11RI

Can't reach the light bridge. Can'y master that technique.

Awesome! Glad you finished it and liked it.
Thanks for the playthrough as well!

My playthrough https://youtu.be/inX1PMtlonQ

I was succeed, very grateful to you！Big thumbs up！Enjoyable！I just want to say that I really failed many times, thanks to F6.

You're on the right track. You just need to figure out how to use the light bridge and funnel together.

I was stuck here ，I think either I have overlooked anything, or it must be difficult here.The funnel stopped for a while，and I can't use it to do something.……I can't jump or go to the highest platform.

errmm.... mkay. lol

bad man really bad man.

really fun map!

My compliments on the sweet maneuvre at 33:25!

Great puzzle, few things were clearly new for me, i guess thats why i was solving it about 1 hour. xD

But i did it, except one part... but did it... i guess, can we not count it please? xD

My playthrough:

https://www.youtube.com/watch?v=M4dE7OSiXPs&feature=youtu.be

Purple.

There was a time in my youth when I would have said red. These days I consider the idea of having a favourite colour kind of nonsensical, but if I had to choose then maybe some type of blue in the region of #1b7fe5. Hope this helps.

What is each of you guys' favorite color ?

Thanks for playing! Glad you liked it, too!

From what I've seen when people have trouble with that technique it's usually because they're trying to reorient themselves and that's not necessary. Fly up, look back down and re-fire portal after passing through. I think people forget that the portals will auto-correct you if you're upside-down.

Very entertaining and satisfying to solve chambers! The most difficult part for me
was building height with orange gel. I know the technique but I'm not very good at it xD Thumbs up and favorited!!

Thanks for playing and very much appreciate you taking the time doing a video LPChip!

This was a fun map. Some parts were a bit hard but overal very nice. Blindrun of this map together with the advanced version is here: https://www.youtube.com/watch?v=J2k2tkJxtoQ

Nice map, but the gameplay is too much like "portal 1" for me. (portal switch with good timming)

Thanks for the feedback and for playing! Glad you had fun. Much appreciate the kind words and I can understand some frustration as well. :-P

One final note. I tried the jump to the exit at least thirty times before exiting. I know I was doing it right. There is really no other way and the walkthroughs show this way. I would either end up on the lightbridge or I would be staring into the exit as I fell past (unable to enter it). I don't know why but it seems I wasn't supposed to exit.

Overall I think you did a great job and I wouldn't change a thing. Thank you all.

I wasn't sure I was going to complete this one. I had a lot of fun. I was also discourageded a lot. Getting the cube in the first chamber was a real challenge. I have used that concept myself and it just took a little time. The chamber to the left wasn't too hard. The timing and the angle on the cube fling took a lot of time.

In the other chamber I could not figure out how to get any height so I used a trick I sometimes resort to. I don't know what to call it but you shoot a portal as you enter rhe same color portal and you gain momentum. That's the only way I could think of. I have since watched the walkthroughs and some of that is a little confusing. Maybe it was just me but it seemed like there were item not needed.

Good set of puzzles! Was fun to solve :)

Here's my blind run .

DeathWish808
I would not change the light bridge to angled panels.
they are slightly slower to deploy, & if the light bridge goes through your body.
it lifts you up, aiding the player.
so changing it to panels, would make it more difficult.
I did enjoy :)
I like something different, & this sure was.
you could also try something I used in my map, Have Faith.
an alternating light bridge. (though mine I made invisible, with basic editor)
but you can pass through an alternating light bridge.
but you can also walk on it. (if the frequency is right)
down side is it's noisey.

DeathWish808
what if the idea of a pedestal button at the correct hieght,
permanantly activates the light bridge & a flip panel above it, for later ?
here is my workshop address:
https://steamhost.cn/steamcommunity_com/profiles/76561197979332810/myworkshopfiles/
you can take your pick.
they are aimed at easy to meduim difficulty, with occasional hard parts.
sideways funel, instead of light bridge, may work ?
as for valves tests, we do forget, as most people use the basic editor,
which is more restricted (me included).
though I do try to push the editor to the limits on some of mine.

I guess I should also mention that I did consider changing the lightbridge part quite a few different ways, but they all would allow a shortcut for the exit and make the design more cluttered. So, while people may not like that one thing in particular, I still find it surprising that they don't remember all the hidden triggers in the original campaigns.

So... should I change it to angled panels that come up so it is like the Valve maps? That might be possible if I don't hit the entity limit since panels "cost" a lot more than a single lightbridge.

I could talk about this a lot, but I had to do what I had to do to keep things clean. Also, I could have left the lightbridge out completely because you can make it up top without it, but some people would have difficulty in getting that extra height, hence the "You're close enough, so here's a bridge to save you some frustration."

I hope that helps to explain that one element a little more and why I will (most probably) never change it.

@mood3rd - Send me a few links of some of your maps you'd like me to do a video blind run on. I have quite a few to catch up on, but will get to them within the next couple days and post links on the map(s). ;-)

Thanks for playing and sticking with it. The problem with having a permanent lightbridge is that you could never get back up again unless you kept a portal up top which would not happen.

Yes, it's not expected for it to come on, but it's no different than in Valve's tests where you are wondering how you're going to get into the exit, but you just fling and then magically a panel(s) rise up to catch you. No different. I think most people forget that it is done so much in the original game.

Anyway, thanks for the feedback and hope you liked it.

DeathWish808
perhaps a pedestal button, with signage, at the correct hieght.
that permenantly activates the light bridge, would help the player.
to continue, with the correct solution ?

DeathWish808
very good, very hard map.
I don't know about thinking out of the box.
I think you threw it away :)
I failed at getting up to the turret area.
because not getting enough height, the 1st few attempts.
I thought getting the height I needed, was imposible (at least for me).
I did not know the light bridge would activate by proximity. (nor could I)
I watched le masters video, to see how to get to the turret area.
thankyou Le Master :)
but then stopped watching & completed the rest, on my own.
both side chambers nearly beat me.
but those AHA moments :)
tricky implementation of solutions & critical timing, also added to the difficuly.
how low does the cube need to be & when do I enter the funel etc.
but I am almost very happy that I completed it.
if I did not needed watch the 1st part of the video.
then I would be very happy.
I will have to settle for happy :)

Thanks a lot! Very well done! You are Le Master. lol

Here's my blind play (Vimeo ended up being the only site that would accept a file this large).
https://vimeo.com/70705027
There's a lot of failure in it, so prepare to be frustrated watching it.

Awesome! Thanks for the feedback! Yeah, this was very thoroughly tested and since the final product I haven't seen anyone do anything in an unintended way. Everything I've seen that was tried failed and were the same things we did to each other's areas. Can't wait for the video and thanks for doing that as well!

Part 2: Then at the end, I almost gave up; I couldn't get into that damned exit. I tried everything before it finally dawned on me what to do. I'd totally forgotten about that area up top near the turrets. It was fun, though. As far as I know, there was really only one way to solve most steps and no shortcuts, so what was needed to do to solve them was very clever and rewarding when figured out.

Part 1: This map really requires some non-standard thinking and portalling. There were some parts that really had me stumped. In the main room, it was tough figuring out how to get up to the light bridge. However, in finally doing that, it made me realize that the rest of the map would ask for more of that sort of outside-the-box thinking. In the room with the light bridge and funnel, I failed many times trying to get up to the exit button. Then in the room with the fizzered cage, it was a bitch figuring out how to get up top. Honestly, I'm still not sure exactly what I did to get up there. I was just trying everything.

Thanks for all your efforts and kind words. May the portals be with you.

Part 2 of 2:

I appreciated when the level ensured that a player would not have to make the exact same difficult set of moves twice. (I can only think for sure of one exception there; not bad for a level this big!)

My least favorite moments were the ones that required more agility than I could reasonably offer. My favorite moments were probably all in the room with the funnel and the lightbridge -- the room I was able to solve without cheating.

I'm giving it a THUMBS UP, because I definitely hope its target audience gets a chance to try it. This level really had cleverness to spare -- for a player who is so good that he's having trouble finding a challenge.

Hopefully, you can think of a word that conveys the difficulty better than "Hard." That should prepare people for the challenge that is to come.

Part 1 of 2:

Very clever puzzles. In fact, so clever that they make me realize that I don't actually "think with portals" all that well. They also required a lot of agility (IMO). My guess is that you guys who built the rooms are such ninjas that you can't imagine what it's like for us normal folk :-)

By quick-saving and reloading a lot, I was able to get through one of the three rooms without cheating. And that felt like quite an accomplishment!

I realize the difficulty is by design, but I'm not sure the word "Hard" really conveys it. Taking a cue from Quake, you might need a word other than Easy-Medium-Hard to describe this difficulty level, like "Nightmare," or "Double-Plus-Hard," or "Super Fire Hard," etc.

I think there are two puzzles that require finding a middle ground in between an object's slowest and fastest possible speed (hoping I've described that well enough) that I found especially perplexing.

Hard chamber indeed! Especially the left room.

Would you like to try one of mine? My chambers are not hard to execute (like this one), but they can be quite hard to figure out. This is the latest:
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=154380850

I know you said it's "hard". I have updated that zip below now. I managed to get past the turrets (without walkthrough video, and before reading your comments), stuck again. :P

Ok, I'm still watching your playthrough and that surface you're trying to fire a portal on won't work because of the strip lights. Anytime a strip light is put at the top or bottom of a single panel then it makes it non-portalable.

As mentioned first in the description "3 Chamber HARD difficulty map."

It doesn't use any exploits such as the momentum hopping, etc that I played in your last map. I call that an exploit because it's not something most people are aware of and is not a part of the regular game in any way. The first room fling is just a variation on many types of flings that are very similar in the single player and other people's maps.

Watch the walkthrough video for that part and go from there.

Tried this for a bit. I got stuck in the first room after falling. After some 15 minutes of exhausting what I think was all my possible leads and growing none the wiser, I quit. It just wasn't fun anymore. http://bisqwit.iki.fi/kala/cohesion-deathco-blind-by-bisqwit.zip My blind demo up to that point, if it's worth anything.

Thank you so much for suggesting this epic map! I hope you enjoy the episode of Test Chamber Junkie ! Please share it with your friends!

Oh and only 40 minutes. I think you have the fastest blind playthrough so far by quite a bit. Can't wait to check it out.

@toncica - Thanks for playing and glad you found it TOO HARD! ;-) Thanks for the .dem as well. As for the room on the right. I think his intention or expectation was that you'd realize there are 3 levels and have to get to each level in order of height, but I can see where you are coming from. BTW, I thumbed down all your maps too because they were too damn hard. ;-) Seriously though, love your maps and keep up the good work!

Too hard, voted down. ;)

It was pretty nice. The room to the right with the randomly placed portal surfaces could have better direction, I was not sure what I was trying to achieve since the pedestal button is almost not visible from the ground and the two buttons with invisible connections did not help to make clear what the actual goal is.
Here is a demo file with my blind run (40 minutes): https://dl.dropboxusercontent.com/u/16159596/cohesion_toncica.zip