I was under the belief that a bloom needed 3 eyes to be alive.
I just found out today a situation where 2 eyes is enough. If you have one normal eye, and a 4-size eye in a trefoil, your bloom is alive even if they occupy the center. The key is to capture with your other color when they fill in three of the spaces.
Are there other situations where a group with less than three eyes is alive? (Other than the typical Go seki due to liberty shortage)
I just found out today a situation where 2 eyes is enough. If you have one normal eye, and a 4-size eye in a trefoil, your bloom is alive even if they occupy the center. The key is to capture with your other color when they fill in three of the spaces.
Are there other situations where a group with less than three eyes is alive? (Other than the typical Go seki due to liberty shortage)