QUOTE(Tenboro @ Dec 24 2021, 04:36)

The "wrongness" for a riddle answer is calculated as (unique_ponies - num_correct + num_wrong) / unique_ponies, so if there are 3 ponies shown and you answer three correctly you'd have (3 - 3 + 0) / 3 = 0. If you answer 2 correctly and miss/leave 1 it would be (3 - 2 + 0) / 3 = 0.33. And if you answer 2 correctly and 1 incorrectly, it would be (3 - 2 + 1) / 3 = 0.67. So generally you wouldn't want to check a box unless you are more than 50% sure.
You'd need to clear at least one floor to get anything, but you'd get 0.2% for reaching floor 2, yes.
QUOTE(Tenboro @ Dec 24 2021, 05:17)

Yeah, if you can't decide between two ponies, checking both of them will at best be as good as picking nether. It doesn't encourage wild guessing.
菠萝给出了对新版 Riddlemaster 准确率计算的官方说明(基本上和玩家们设想的是一样的)。公式为:
错误率 = (图中有多少种小马 - 你选对的小马 + 你选错的小马) / 图中有多少种小马
菠萝还举了两个例子:假设图中有三只不同的小马,如果你只选对了两只、漏了一只不选,那么你的错误率会是:
(3 - 2 + 0) / 3 = 33%;如果你选对了两只、盲猜了一只结果猜错了,那么你的错误率会是:(3 - 2 + 1) / 3 = 67%
最后菠萝提出的忠告就是:不要瞎猜,只选有把握的。