I played the game a while ago and found it fun but only barely challenging enough and the addition of punctuation marks which I am certain were not previously present has drastically lowered the difficulty of the puzzles, which makes me sad :(
I found 22 and 23 Aug quite tricky, what did you think of those two?
I think the punctuation makes it more interesting, and also means the text can be a lot longer.
Having said that, "Quite Tricky" for this game is never much longer than 5 mins, but I think that's ok, you could try Clues By Sam if you want a harder logic game?