Back in late 2015 I prototyped a programming game called Loop Game. The prototype was shown at the local Adelaide games gathering called ARGGGH and raptured a small crowd of programmers who spent roughly an hour working through the problems.
The goal of the game is to write a computer program that will shift all the numbers in the grid to zero. However you’re limited in the number of if statements, loops and ReduceCell function calls you’re allowed to make.
Hope you enjoy the game.