Why white wins?

In this game, the time was over. I thought it was a draw.



Isn't it a insufficient material situation for white?

FIDE Laws of Chess, Article 6, Section 9: (www.fide.com/fide/handbook.html?id=208&view=article)
"Except where one of Articles 5.1.1, 5.1.2, 5.2.1, 5.2.2, 5.2.3 applies, if a player does not complete the prescribed number of moves in the allotted time, the game is lost by thatplayer. However, the game is drawn if the position is such that the opponent cannot checkmate the player’s king by any possible series of legal moves."

Any possible series of legal moves includes helpmates, so White does in fact win.

I know I could have done this more efficiently, but... lichess.org/0yZ17xKA

That's good to know

This mate actually happened with the other player having more than just pawns:



I used to think this is just a theoretical possibility but i was wrong.

Thank you.
So, if the pawn doesn't exist, still white wins? I'm not sure but I remember a draw in that situation. Maybe not in this portal.

K+B vs K+Q draw
K+B vs K+R draw
K+B vs K+B win if bishops of different color, draw otherwise
K+B vs K+N win
K+B vs K+P win

K+N vs K+Q draw
K+N vs K+R win
K+N vs K+B win
K+N vs K+N win
K+N vs K+P win

#5 yes, look at #2's example, where only the rook is enough to trap their own king. Now if they had only a king and nothing else, then it would be a draw.

OK, thanks everybody for the answers.