287 problems

Problems which deal with a liberty filling battle between groups lacking two eyes.

159 problems

Best way to play in a ko, or ways to play to maximize ko threats later.

66 problems

How many points is a move worth? These problems test your counting ability.

56 problems

17 problems

Problems where there's an obvious 2 - 2 cutting point to start the problem.

12 problems

Problems that let the user choose between several paths of resistance of varying difficulty.

5 problems

Problems that require the solver to construct a position with some given properties.

ID | Genre | Author | Difficulty | Stars | Flagged | Created |
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