Godzilla0:
Hello, putting in the description b/w to play only for the problems which are ending with a ko gives us a hint (we know if the answer is a ko or not). Why not simply write b/w to play in the description of every problem, and let the player find by himself the best solution ?

babao:
Not sure if this problem is supposed to give a hint that's a ko result or not. But I guess since no ko seems really impossible maybe doesn't matter?