Mate in 1 test

Take this mate in 1 online test- http://chesstonia.com:1337/

[WARNING - Addictive]

Use the entire link, for some reason the :1337/ part is not being included in the link.

funny page! got 24, then messed up!

You got 24 right?

Good job, mate. ..... Get it? Mate?

First try I got 42, apparently alive for 300 seconds but what's confusing me is that it says I made 1 mistake (look at nettman's screenshot for reference), but I lost on time not because of a mistake...

P.S. I also didn't understand the time concept at first. At first I just thought it was 30 seconds per puzzle so I took my time, then for a while afterwards I was just plain confused and also took a long time lol...

Oh, making a mistake doesn't stop you? Silly then really...

I meant the website in general. I have no idea what puzzle you're specifically referring to.

Well 77 is the best I've managed with no mistakes. I don't think I will ever manage the 100 challenge so I'll stop there. Nice site.

Nice. Gratz.