Hrewsahgs: For this particular problem, wouldn't the direct ko variation be better, considering the solver's position is as the attacker? Eternal life is just infinite ko threats or making the game a draw.
caranthir: Sometimes you'd specifically want to have eternal life in order to force a draw (or to see "Error: too much recursion" message in the review) if you're losing otherwise, and especially if the direct ko isn't good enough. What if we specify the task as a hint: "eternal life".
Sometimes you'd specifically want to have eternal life in order to force a draw (or to see "Error: too much recursion" message in the review) if you're losing otherwise, and especially if the direct ko isn't good enough. What if we specify the task as a hint: "eternal life".