Sadaharu:
Cool feature! But I feel like the comments can appear on top instead of below. Usually the problem will fill up the whole screen so I won't be able to see the comments unless I scroll down.

kovarex:
Firstly, I fixed answer to the wrong nobi, as it was marked green, but just because the answer was wrong, white can just take the one stone and live instantly. Apart that, I added alternative answer of white, to start testing the "you need to answer more relevant answers to solve" feature.