A kinda funny puzzle

A puzzle with some other content:

In how many different ways ( notations ) can white mate black in the next move?

If you want it a bit more challenging set yourself a time limit of 30 seconds. I hope you have fun with it :)

6 minutes + 1 second, a round number of seconds per mate :D

I count one less than you, Arisktotle. Qg5 isn't mate, if I'm guessing your count correctly.

But Qg8 is!

18

I'm getting only 18 and not 19 as you suggest. The units moved (number of mates):

Pe2 (1), Qg2 (1), Kf3 (2), Bc5 (5), Ne8 (1), Pb7 (8), total 18.

Where is 19 mentioned? I don't see it or I'm missing something...

Is "6 minutes + 1 second, a round number of seconds per mate :D" code for 19 ??

You win! I had Bc5(6) but clearly Bd4 is no option!

6'1" = 361 seconds = 19 * 19 seconds.

Well I suppose he could've meant 1 mate in 361 seconds or 361 mates, but those would be silly. Actually, no, a unique mate in 1 would have been interesting too. Did make a couple of those directmates in this thread (amidst some clunky retros).

I think Arisktotle mistimed his effort and really solved it in 6 minutes flat. So he was right about a whole number of seconds per mate. But when he miscounted the mates, he had to fudge the time to make it come out even.

What I really meant is that, would I land in this position in an OTB game with just half a second on the clock, I would play 1. Bd4+ and shout out loud "checkmate!". Everyone would look at me as if I were just dressed in my underpants. And then, fortunately, ..... I would wake up.