Our second interactive activity of TestBash Home with @workroomprds is going to be an exciting exercise in exploratory testing and coaching 
To get you warmed up, you can check out the puzzles on Jamesās website Black Box Puzzles.
Weāll be adding all unanswered questions from the session here so if we didnāt get to your question, donāt worry, we will find you an answer 
If youāve thought about a question after reflecting upon the session, you can also add it here!
Hello! If you ask questions before, I might answer here. And theyāll be on my mind in the session (a bit) and Iāll see if thereās a good opportunity to get to them there, too. If it doesnāt get in the way of the testing and coaching.
weāre doing puzzle 35 btw 
it seems that both buttons light the lights on the right in certain order: top-down, right-left.
the difference is that the lights that were turned on by the left button fade out more quickly than by the right one. (2 sec vs 1 sec?)
anyway, both fade away by themselves. no off button.
the lights turn off by the timing of each row.
Left adds less, Right adds more.
Each row sums the time and fades away left to right.
https://www.flashbackrecorder.com/rewind/
Yellow doesnt light on its own. It only lights if the blue is on.
The two buttons seem to fill an empty queue with a command to turn on the blue button first and the yellow button second from right to left. The queue is automatically emptied based on last in, first out principle. The left button seems to control a queue in which the elements are emptied every two seconds. The right button seems to ccontrol a queue in which the elements are emptied every four seconds.
Hmm, when emptying the queue the blue en yellow are removed consequetively so there goes the two/four seconds hypothesis on removing.
In reply to one of the questions, a puzzle from James was used in my interview at Metaswitch. Not one of the public ones. I never got that one either.
Great observations ā can you dream up a principle that might explain them?
Metaswitch commissioned a puzzle!
Just one queue?
(this line is filler to game the sub-20-char reply limit)
maybe itās like a couple of queues (like for two different massage therapists*), blue line for therapist A, yellow line for therapist B. And the left/right buttons are for the lengths of the treatments. So if a new person comes to the line, theyāll join Line A (blue) unless itās longer, and then theyāll join Line B (yellow).
@workroomprds - is that close to describing it?
*maybe itās my back/neck talking after sitting through almost all this Test Bash 
Antonella: Great session! Are the puzzles sorted by difficulty? i.e 1 being the easiest? Thanks!
Not organised by difficulty at all. And different people find different stuff differently difficult. So: Iād suggest you work /backwards/; the tech works better in newer ones with larger numbers.
Isabel: On confusion: Kathy Charmaz writing about grounded theory says when you admit you are confused, then you are researchingā¦ same with testing? The confusion is important. Admitting the confusion?
Confusion can make us freeze. Saying that one is confused helps (I reckon) to re-take control, and to make small steps out.
Deborah: Have you ever used this to interview someone for a tester role? Do you think it could work?
I use it to see how people deal with triggering, observing, notes and memory, uncertainty. Other people use them in job interviews, but Iām rarely in that position.
Maik Nogens: When would you suggest to not confirm your model, but switch to disprove your model?
When your model seems to match your observations /so far/
Christer Nilsson Ribbing: Is there a way to get it green?
Javascript
Darren Keig: Are there any resources / courses / other things to help someone who is interested in getting into test coaching?
Jerry Weinbergās books
Matthew Dubus-Cook: is your phone ringtone, that keeps going off, the start of Mariah Careyās xmas song?
No. Straightforward iOS alarm. Iāve use Public Service Broadcastingās Go! and Apollo440ās Stop the Rock as alarm tones that get me to do stuff. Maybe Iāll try Mariah. Thanks for asking.
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Spoiler Alert
Thatās it!
Yay! 
Thanks, that was an awesome challenge.
Not just solving it, but really feeling that hump of getting stuck, and dealing with it.
Really good session. 
Really? āThatās it!ā ? Now, the next riddle is to find out WHY this is itā¦ maybe I am just dumb 
Hi testbashers!
Here is my take on reveling the rules of this excellent puzzle.
Now comes the fun part
Putting lights in a queue. Que fills from right to left.
Que timer starts when light is turned on. And that counts for next light added to row que.
Each row has independent timers.
Example.
Click right button four times. Second light timer has already been started at the moment when first light in that row went off!
Which means that second row light will not go off after four seconds of its appearance time moment, but four seconds after the moment when first light went off.
Que timer is started when first light goes off.
I used my phone stopwatch.
I measured after how much time light goes off. I got consistent times just for one light in queue.
For exercise.
Fill up queues with right button. With left button.
Alternate left and right button.
Measure timings.