I'm black, I defeated a 1830 very easily in a 11 + 10 game and I had plenty of time, but I played fast and didn't see mate, he was low on time. Analyzing with lichess engine
[fen "2k2r2/ppp5/7p/3Pp1p1/3n4/2PPK1B1/Pq4PP/R3R3 b - - 0 1"] 1... Nc2 (1...Rf4!)
The engine suggested Rf4 and mate in 3, I played Nc2. And here
[fen "2k2r2/ppp5/7p/3Pp1p1/4K3/2PP2B1/Pqn3PP/R3R3 b - - 0 1"] 1... Nxa1 (1...Qb6!)
I missed Qb6, mate in 4 and played Nxa1. Again I had plenty of time on the clock, around 10 minutes, the opponent was so easy to beat, but that's not the point, the point is I missed mate twice, I just wasn't looking for it.
Now that I look at it, I think I would never play Rf4, Yes the king is trapped but there's so much material on the board to take, I don't think I would have analyzed the Rf4 line, not in this life, nor the next one.
When faced with such winning positions, in a blitz match, do you go for materials or do you stop and analyze possible mating lines? I just want to know if I'm being a humain or am I not seeing those lines because I'm weak or careless.
if I'm in losing position or equal position, I analyze many lines trying to win, but games like these I try to simplify and reach a simple endgame.