lean code kata - fresco plc software aka checkout-kata
timed kata: requirements changes every 10minutes.
I've seen it the first time @lscc @SoftwareCraftmanshipMeetup: it was really fun but I wanted to re-do it another time.
As you can see by the history, even if there were only six different iterations, I failed four times to complete the current iteration on time and had to restart with a new branch from the previous iteration.
Interesting kata, probably more enjoyable the very first time and if done in pairs against other pairs.
Don't spoil you the fun, don't take a look at the rules until you are ready to start
Exercise from https://www.meetup.com/london-software-craftsmanship/events/246559505/