posetcay: Marked R18 as wrong as it leads to approach ko. Q19 leads technically leads to direct ko but it is significantly inferior to P19 so I am tempted to mark it as wrong also. If we decided to keep it as an answer, we should also add O19 as first move as well since it leads to the same shape.
Marked R18 as wrong as it leads to approach ko. Q19 leads technically leads to direct ko but it is significantly inferior to P19 so I am tempted to mark it as wrong also. If we decided to keep it as an answer, we should also add O19 as first move as well since it leads to the same shape.