Yes, I see Nd4 then Kg2 also traps the black knight.
The above was not part of an arena so it was a deliberate choice to play 5+0 time control. I do however think they should have increment in arenas even if only 1 second but ideally 2 seconds. If they made a software fix they could introduce "1 second (or 2 second)) increment after move 60" a bit like they do in FIDE armageddon, just to reduce games like this turning into a bit of a farce. (In Armaeddon though it's a necessity, as one of the rules is that black gets draw-odds and less time, therefore a bit unfair if he gets the clearly drawn end-game only to be dirty-flagged).
The above was not part of an arena so it was a deliberate choice to play 5+0 time control. I do however think they should have increment in arenas even if only 1 second but ideally 2 seconds. If they made a software fix they could introduce "1 second (or 2 second)) increment after move 60" a bit like they do in FIDE armageddon, just to reduce games like this turning into a bit of a farce. (In Armaeddon though it's a necessity, as one of the rules is that black gets draw-odds and less time, therefore a bit unfair if he gets the clearly drawn end-game only to be dirty-flagged).